WO1998047073A1

WO1998047073A1 - Data processor, data processing method, and data processing system

Info

Publication number: WO1998047073A1
Application number: PCT/JP1997/001275
Authority: WO
Inventors: Masayuki Taniguchi; Mayumi Ojima; Atsushi Mase; Kazuhiro Iwamoto; Haruki Kawamura; Toshihiko Ogiso; Kentarou Morikami
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 1997-04-14
Filing date: 1997-04-14
Publication date: 1998-10-22
Also published as: HK1025410A1; GB2339940B; GB2339940A; GB9924381D0; DE19782267T1

Abstract

The communication protocol for each of the PLCs connected via communication channels is stored beforehand to eliminate the need for the user program to set the communication protocol. In collecting device data, the data processor is connected to a PLC according to the communication protocol, collects the device data, stores the collected device data in a shared memory, and transfers the device data from the shared memory to a specified user buffer. In setting the device data, the processor receives device data from a specified user buffer, stores it in the shared memory, is connected to a PLC according to the communication protocol stored beforehand, and sets the device data for the PLC.

Description

Description Data processing apparatus, processing method and data processing technical field

The present invention relates to a data processing device, a processing method, and a data processing system for collecting and setting data with a device to be controlled via a communication line. Background art

FIG. 34 is a block diagram showing the configuration of a conventional data processing apparatus. In the figure, reference numeral 200 denotes an input / output device such as a CRT 2 and a keyboard 3, and a communication line 5 based on different communication protocols. This is a controller that controls a plurality of PLCs (Programmable Logic Controllers) 4 connected by a PC.

The communication lines are described as three (communication lines 5a, 5b, 5c) corresponding to each PLC 4 (PLCs 4a, 4b, 4c).

Here, the controller 200 executes a user program 221 such as a PLC device data collection / setting program developed in the memory 220, the CPU 210 and the interface 210 with the CRT 2 231, It consists of an interface 232 with the keypad 3 and interfaces 24 1, 242 and 243 with the PLCs 4a, 4b and 4c connected by different communication protocols.

FIG. 35 is a memory state diagram of the PLCs 4a, 4b, and 4c. In the figure, reference numeral 40 denotes a memory of the PLC 4, and 41 denotes device data stored in the memory. Each of the PLCs 4a, 4b, and 4c has a memory 40a, 40b, and 40c, respectively. 1a, 41, and 41c are stored.

FIG. 36 is a flow chart for collecting data from the PLC 4 connected by the conventional different communication line, and shows the product number data of the device area 41 a from the memory 40 a of the PLC 4 a. Devices W0 to W99, then from PLC 40b memory 40b to device area 4 1b Production completed number data for devices 1D to D49, then PLC 4c memory 40c to device area 4 It shows the operation of the user program 221 when data is collected in the order of devices R10 to R20, which are the measured values of 1c.

Fig. 37 is a flow chart for setting data for PLC 4 connected by a conventional different communication line, and the product number in device area 41 a of memory 40a of PLC 4a. Devices W0 to W99, which are all overnight, then devices D0 to D49, which are the number of completed production units in device area 41 of memory 40b of PLC 4b, then devices of memory 40c of PLC 4c The figure shows the operation of the user program when setting data in the order of devices R10 to 20 which are measurement value data in the area 41c.

Next, a conventional data collection method will be described with reference to FIGS. 34 to 36.

In this conventional example, for example, at the request of the user, the data of the devices WO to W99, which are the product number data from the PLC 4a, and the device D0, the data of the production completed data from the PLC 4b A description will be given of a case where data of D49 and data of devices R10 to R20, which are measurement data, are collected from the PLC 4C. First, a case will be described in which data of the device numbers WO to W99, which are product number data, is collected from the PLC 4a overnight. -In step S1601, the user sets, as a user program, a communication protocol for the controller 200 to communicate with the PLC 4a, and device data collected from the PLC 4a ( Communication data such as designation of devices WO to W99), which are product number data, and a collection destination user buffer and collection timing of the collected device device are created, and the process proceeds to step S1602.

In step S 602, the communication line 5 a is opened according to the communication protocol with the PLC 4 a based on the created communication data, and the process proceeds to step S 603.

In step S1603, data is collected from the PLC 4a for devices W0 to W99, which are product number data, and stored in the specified user buffer.

When the data collection is completed, in step S1604, the communication line 5a is closed according to the communication protocol with the PLC 4a based on the communication data.

In this way, the data of the devices W0 to W99, which are the product number data from the PLC 4a, are collected.

Subsequently, in step S1605, it is determined whether or not collection of all device data has been completed. In this case, since the data on the number of completed products and the data on the measured values have not yet been collected from PLC 4b and PLC 4c, the process returns to step S1601 to collect data on the number of completed products. From step S 1601, data S 1 to D 49 of completed production number are collected in step S 1604.

Then, in the same way, collect the measured data R10 to R20 from PLC4C. The collection of all device data is completed, and the flow shifts to step S166. -In step S166, it is determined whether a series of data collection is completed. If the device data of the PLC is to be collected continuously, go to step S1667, for example, wait for any timing to be the next scan, and then go to the next scan, that is, the next data collection, and Collect data for 4a, 4b, 4c.

Here, the arbitrary timing is a fixed time interval or a change in the device data content of the PLC.

On the other hand, in step S166, if the termination condition is met, a series of

The PLC device data collection processing ends.

Next, a conventional data setting method will be described with reference to FIGS. 34, 35, and 37. FIG.

In this conventional example, according to the user's request, the data of the devices WO to W99, which are the product number data, are stored in the PLC 4a, and the data of the devices D0 to D49, which are the number of completed production units, in the PLC 4b. In the evening, a case where the data of the devices R10 to R20, which are the measurement value data, are set in the PLC 4c will be described. First, a case where data of devices W0 to W99, which are product number data of the PLC 4a, are set will be described.

In step S1701, the user sets, as a user program, a communication protocol for the controller 200 to communicate with the PLC 4a, and sets the PLC 4a. Communication data such as the specification of the user buffer where data is stored and the device data to be set in the PLC 4a (devices WO to W99, which is the product number data) and the timing of setting. An evening is created by a user program, and the flow shifts to step S1702. In step S1702, the communication line 5a is opened according to the communication protocol with the PLC 4a, and the flow shifts to step S1703.

In step S1703, the device WO-W99, which is the product number data, is actually set from the user buffer specified for the PLC 4a.

When the data setting is completed, in step S1704, the communication line 5a is closed according to the communication protocol with the PLC 4a.

In this way, the setting of the devices W0 to W99, which is the product number data for the PLC 4a, is completed.

Subsequently, in step S1705, it is determined whether or not all device data settings have been completed. In this case, since the production completed number data and the measured value data have not yet been set for the PLC 4b and the PLC 4c, the process returns to step S1701 to set the production completed number data. From S1701, the number of completed production units D1 to D49 is set by steps S1704.

Then, similarly, the measurement value data R10 to R20 are set in the PLC4C to complete the collection of all the device data, and the flow shifts to step S1706. In step S 1706, it is determined whether a series of data settings has been completed. When setting the device data of the PLC continuously, go to step S1707, for example, wait for an arbitrary timing to be the next scan, and then go to the next scan, that is, move to the next data setting. , PLC 4a, 4b, and 4c are set overnight.

Here, the arbitrary timing is a fixed time interval or a change in the contents of the device data of the PLC.

—In step S1706, if the termination condition is met, a series of

The setting process for PLC device data is completed. Another conventional example will be described with reference to FIGS. 38 to 39.

FIG. 38 is a block diagram showing a configuration of a conventional data collection device, showing a case where two controllers are provided.

In the figure, two controllers 200 and 201 are provided, and are respectively connected by the same communication protocol via a communication line 5 e by a protocol E I / F 245.

The controller 200 is connected to the PLC 4a by the IZF 241 for protocol A and the communication line 5a, and the controller 201 is connected to the PLC 4d by the IZF 234 for protocol D and the communication line 5d. It is connected.

Further, the controller 200 performs data collection Z setting and the like based on the user program 222 in the memory 220.

The other configuration is the same as that of the above-described conventional technology, and thus the description is omitted.

The CPU 210, memory 220, user program 221, CRT I / F 231, and keyboard IZF232 in the controller 200 correspond to the controller 201 internal. CPU 210, memory 22

0, User program 22 1, CRT I ZF 2 3 1, Keyboard

1 / F 232 is configured.

Fig. 39 shows controllers 200 and 2 connected by communication line 5e.

0 Data collection between 0 and 1 Flow chart in the user program indicating the Z transfer method, for example, product number data of the device area inside the PLC 4d connected to the controller 201 A series of processing (user-one program) for setting (transferring) data W100 to W199 as data W0 to W99 in the device area of the PLC 4a connected to the controller 200 is shown. The communication protocols of the PLCs 4a and 4d connected to the controllers 200 and 201 use different communication protocols.

In step S1801, the user, as a user program, communicates with the controller 201 to communicate with the PLC 4d, that is, the controller 201 communicates with the PLC 4d. Communication protocol setting, and designation of device data (product number data W100 to W199) collected from the PLC 4d, and collection destination user buffer and collection of the collected device data in the controller 201. Create communication data such as timing.

Also, a communication data for the controller 200 to communicate with the PLC 4a.

—Evening, that is, a communication protocol setting for the controller 200 to communicate with the PLC 4a, and a user buffer that stores data to be set for the PLC 4a and a device to be set for the PLC 4a Create communication data such as the specification of the data (device W0 to W99, which is the product number data) and the timing of the setting.

Then, the flow shifts to step S1802.

In step S1802, the communication line 5e is opened according to the communication protocol between the controller 200 and the controller 201, and the flow shifts to step S1803.

In step S1803, a request for data collection of the devices WO to W99, which are the product numbers of the PLC 4d, is sent from the controller 201 to the controller 200 via the opened communication line 5e. The controller 201 created in S1801 transmits communication data for communicating with the PLC 4d, and the flow shifts to step S1804.

In step S 1804, a communication protocol between the controller 201 and the PLC 4 d is set based on the communication data transmitted from the controller 200. The communication line 5d is opened in accordance with the rules, and the flow shifts to step S1805. -In step S1805, data of devices W100 to W199, which are product number data, is actually collected from the PLC 4d, and is temporarily stored in the memory 220 of the controller 201. Then, the process proceeds to step S1806. In step S1806, by communicating between the controller 200 and the controller 201, the devices W100 to W19 stored in the memory 220 in the controller 201 are communicated. 9 is transferred to the memory 220 in the controller 200, and the flow shifts to step S1807.

In step S1807, the communication line 5d opened according to the communication protocol between the controller 201 and the PLC 4d is closed, and the flow shifts to step S1808.

In step S1808, the communication line 5e opened according to the communication protocol between the controller 200 and the controller 201 is closed.

With the above, the collection of the devices W100 to W199, which are the product numbers from the PLC 4d, is completed.

Next, a flow for setting the devices W100 to W199, which are the product number data stored in the memory 220 inside the controller 200, to the PLC 4a connected to the controller 200. to go into.

In step S 1809, the communication line 5 a is opened according to the communication protocol with the PLC 4 a, and the flow shifts to step S 180.

In step S1810, communication between the controller 200 and the PLC 4a is performed, and the device number data W100 to W which is the product number data stored in the memory 220 inside the controller 200 is transmitted. 199 is set in the area 41a of the memory 40a inside the PLC 4a, and is set as devices W0 to W99. When the data setting is completed, in step S1811, the communication line 5a is closed in accordance with the communication protocol with the PLC 4a, and a series of products inside the PLC 4d connected to the series of controllers 201. The process of transferring the number data to the PLC 4a connected to the controller 200 via the communication line ends.

As described above, according to the conventional data collection Z setting method, when a plurality of PLCs connected to the controller are connected by different communication protocols, that is, communication lines, the controller receives the data from each PLC. Evening collection Z To set, the user program must create communication data according to the dedicated communication protocol corresponding to each PLC to communicate with each PLC, which requires expertise in the communication protocol. In addition, there is a problem that a program is enlarged and performance is deteriorated because communication data such as opening and closing of a communication line is created according to different dedicated communication protocols.

In addition, the controllers are connected via a communication line, and the data collection between the PLCs connected to each controller is performed. In the Z setting method, the memory inside the PLC is accessed and the data It is necessary to set the data collection Z settings for each controller, such as from the controller that collected the data to the controller and collected the data from the controller to another controller, and further to the PLC connected to the other controller. As with the problems described above, the user program for performing the acquisition and setting is complicated and bloated, and the memory of the PLC connected to the controller is bothersome to collect and set data between controllers. I had to create a user program to do this.

In addition, during continuous operation in which a user program is repeatedly executed, there is a problem that communication time is excessive and performance is reduced. In addition, the interval for collecting data from the PLC connected to the controller is set by the user program. To change the interval for collecting device data, the entire user program must be changed. Therefore, the task of arbitrarily changing the interval for collecting device data from the controller was heavy.

In addition, the setting of refresh parameter overnight data for constantly refreshing the data to be collected / set must be performed in the refresh parameter overnight storage area of each controller with the same work setting by each user program. However, there were also problems such as poor workability and heavy user burden. Disclosure of the invention

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has been made in consideration of the difficulty in creating a complicated and sophisticated user program without having to create a sophisticated user program between a controller and a PLC connected to the controller. It is an object of the present invention to provide a data processing device, a processing method, and a data processing system capable of performing overnight processing.

Another object of the present invention is to provide a data processing apparatus and a processing method in which a plurality of controllers are connected and data processing between the controllers does not create a complicated advanced user program. Still another object of the present invention is to provide a data processing apparatus and a processing method that improve the work efficiency when setting data such as parameters. In order to achieve this object, according to one aspect, a communication protocol storage unit that stores, in advance, for each of the control target devices, a communication protocol with a control target device connected via a communication line; Device owned by the controlled device according to the communication protocol stored in the storage means Device data processing means for collecting data or setting device data for the controlled device, and storing the device data collected by the device data processing device or device data set for the controlled device And a data transfer means for transferring the device data between the shared memory area and a designated user buffer.

In particular, the device data processing means must have a refresh control function for collecting device data held by the controlled device or setting device data to the controlled device at a predetermined timing. did. Further, the device data processing means reads a predetermined timing for performing the refresh control from a setting data file in which data is set as a parameter.

In particular, the data transmission / reception means is to perform all data transmission / reception between the shared memory area and the designated user buffer by the communication means set in advance.

In particular, the data transfer means transfers device data between the shared memory area and the user buffer every time the value of the device data is changed.

In particular, the shared memory area is divided into blocks and stored for each device data of each device to be controlled.

According to another aspect, a step of reading a communication protocol with a control target device connected via a communication line from communication protocol storage means stored in advance for each of the control target devices; A step of collecting device data held by the controlled device via the communication line or setting device data in the controlled device according to a communication protocol; and a step of collecting device data collected from the controlled device or a controlled object. Equipment A data processing method comprising: storing device data to be specified in a shared memory area; and transmitting and receiving the device data between the shared memory area and a designated user buffer.

In particular, the process of storing the device data collected from the control target device or the device data set for the control target device in the shared memory area is performed at a predetermined timing set in advance.

According to another aspect, in a data processing system in which a controller connected to a control target device via a first communication line is connected to a plurality of controllers via a second communication line, the controller includes: Device data overnight processing means for collecting the device data held by the controlled device or setting the device data to the controlled device in accordance with the communication protocol in the first communication line; Sending and receiving the device data between the shared memory area for storing the device data collected by the means or the device data to be set in the controlled device, and the user buffer designated by the shared memory area; And a second communication protocol storage means for storing in advance a communication protocol of the second communication line. Transmitting means for transmitting the device data stored in the shared memory area via the second communication line according to the communication protocol of the second communication line stored in the second communication protocol storage means; And a writing means for storing the device data transmitted via the second communication line in the shared memory area.

In particular, it is provided with a first communication protocol storage means for previously storing, for each of the control target devices, a first communication protocol with the control target device connected via the first communication line. .

In particular, the device data processing means is a device owned by the device to be controlled. It has a refresh control function that collects data overnight or sets device data to the control target equipment in a predetermined evening sequence.

In particular, the transmitting means transmits the device data at a predetermined timing via the second communication line based on the parameters stored in the shared memory area.

Also, the transmitting means is operated at a certain interval from the starting means operating based on the predetermined parameters.

In particular, when writing the device data transmitted via the second communication line to the shared memory area, the writing means is divided into blocks for each device and stored. -In particular, the second communication line has been decided to use the Ethernet protocol. In particular, the parameters stored on the shared memory were transmitted via the second communication line.

In addition, it is determined whether the data transmitted via the second communication line is a parameter or device data, and if the data is a parameter, the data is stored in the parameter storage area on the shared memory. However, if it is device data, it is stored in the storage area for each device to be controlled. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a block diagram showing a configuration of a data collection device according to a first embodiment of the present invention.

FIG. 2 is a functional diagram showing functions of a data collection unit according to the first embodiment of the present invention.

FIG. 3 is a flowchart showing the operation of the shared memory data collecting means provided inside the data collecting means according to the first embodiment of the present invention. FIG. 4 is a flowchart showing an operation of the device data collecting means provided inside the data collecting means according to the first embodiment of the present invention for collecting data from the PLC.

FIG. 5 is a memory configuration diagram showing the contents of the shared memory according to the first embodiment of the present invention.

FIG. 6 is a block diagram showing a configuration of a data setting device according to a second embodiment of the present invention.

FIG. 7 is a functional diagram showing functions of data setting means according to Embodiment 2 of the present invention.

FIG. 8 is a flowchart showing the operation of the shared memory data setting means provided inside the data setting means according to the second embodiment of the present invention.

FIG. 9 is a flowchart showing the operation of the device data setting means provided inside the data setting means according to the second embodiment of the present invention for setting the data to the PLC.

FIG. 10 is a memory configuration diagram showing the contents of the shared memory according to the second embodiment of the present invention.

FIG. 11 is a block diagram showing a configuration of a refresh-type data collecting apparatus according to Embodiment 3 of the present invention.

FIG. 12 is a functional diagram showing the function of the refresh type data collecting means according to the third embodiment of the present invention.

FIG. 13 is a flowchart showing the operation of the shared memory data collecting means provided inside the refresh type data collecting means according to the third embodiment of the present invention.

FIG. 14 is a flowchart showing the operation of the device data collection and refresh means provided inside the data collection means according to the third embodiment of the present invention for collecting data from the PLC. FIG. 15 is a block diagram showing the configuration of a refresh type data setting device according to Embodiment 4 of the present invention. FIG. 16 is a functional diagram showing the function of the refresh type data setting means according to Embodiment 4 of the present invention.

FIG. 17 is a flowchart showing the operation of the shared memory data setting means provided inside the refresh type data setting means according to the fourth embodiment of the present invention.

FIG. 18 is a flow chart showing an operation for setting data to the PLC by the device data setting refresh means provided inside the refresh data setting means according to the fourth embodiment of the present invention. .

FIG. 19 is a block diagram showing a configuration of a data collection device according to Embodiment 5 of the present invention.

FIG. 20 is a functional diagram showing the function of the data collection means according to Embodiment 5 of the present invention.

FIG. 21 is a flowchart showing the operation of the protocol A device data collection means, the protocol B device data collection means, and the protocol C device data collection means according to the fifth embodiment of the present invention.

FIG. 22 is a diagram showing a database format file in an auxiliary storage device for storing data with an interval set for collecting PLC device data according to the fifth embodiment of the present invention. .

FIG. 23 is a system configuration diagram showing a system configuration of a data collection device according to Embodiment 6 of the present invention.

FIG. 24 is a functional diagram showing functions of a data collection unit according to Embodiment 6 of the present invention.

FIG. 25 is a diagram showing the contents of the device refresh parameter set on the shared memory by the user according to the sixth embodiment of the present invention. FIG. 26 is a diagram showing an example of a device write request transmission data content to be transferred to another controller according to the sixth embodiment of the present invention.

FIG. 27 shows a means for activating a write request transmitting means to another controller in the own controller device data at regular intervals according to the refresh parameter according to the sixth embodiment of the present invention. 5 is a flowchart showing the operation of the first embodiment.

FIG. 28 is a flow chart showing the operation of a means for transmitting a write request to another controller in the own controller device data at regular intervals according to the refresh parameter according to the sixth embodiment of the present invention. is there. FIG. 29 is a flowchart showing the operation of a means for receiving a write request from another controller and writing the same in the shared memory according to the sixth embodiment of the present invention.

FIG. 30 is a functional diagram showing the function of the refresh parameter setting unit according to the seventh embodiment of the present invention.

FIG. 31 is a flowchart showing the operation of the means for transferring the device refresh parameter data to another controller according to the seventh embodiment of the present invention.

FIG. 32 is a flowchart showing the operation of the means for writing data from another controller to the shared memory according to the seventh embodiment of the present invention. FIG. 33 is a flow chart showing the operation of a user program for setting device refresh parameter overnight data in a shared memory according to Embodiment 7 of the present invention.

FIG. 34 is a block diagram showing the configuration of a conventional data collection device.

FIG. 35 is a memory state diagram of PLC 4a, 4b, 4c.

Fig. 36 shows data from PLC 4 connected via a different conventional communication line. Is a flow chart for collecting the information.

FIG. 37 is a flowchart for setting a default for PLC 4 connected by a conventional different communication line.

FIG. 38 is a block diagram showing the configuration of a conventional data collection device. Fig. 39 shows controllers 200 and 2 connected by communication line 5e.

13 is a flowchart in a user program showing a data collection transfer method between 0 and 1. BEST MODE FOR CARRYING OUT THE INVENTION

Next, examples of the present invention will be described as follows.

Example 1.

Embodiment 1 of the present invention relating to a data collection method will be described with reference to FIG. 1 to FIG.

FIG. 1 is a block diagram showing a configuration of a data collection device of the present invention. In the figure, reference numeral 100 denotes a controller for controlling a CRT 2 and a keyboard 3 which are input / output devices, and a PLC 4 (PLC 4a, PLC 4b, PLC 4c) connected by different communication means. Is a CPU that executes user programs 121 and data collection means 122, such as a PLC device data collection program expanded in the memory 120, 131 is an interface with CRT 2, and 132 is a keyboard Interface with 3, 141, 142, 143 are connected by different communication protocols Interface with PLC 4a, 4b, 4c, 5a, 5b, 5c are different This is a communication line with PLCs 4a, 4b, and 4 connected by the communication protocol.

FIG. 2 is a functional diagram showing the function of the data collection means 122 operating in the memory 120 of FIG. 4 &, 4b, 4 Shared memory for storing device data held by c. 1 2 2 2 is a device for exchanging device data between the shared memory 1 2 2 1 and a designated user buffer. 1 2 2 3 are device data collection means as device data processing means having communication protocol storage means for storing the communication protocol of the PLC 4;

22 3a is the protocol 8, for example, the device data collection means of the PLC 4a connected by the RS232c protocol, and 1223b is the protocol B, for example, the PLC4 connected by the Ethernet protocol. The device data collection means of b, 1223c is the device data collection means of PLC 4c connected by protocol C, for example, a proprietary LAN protocol.

FIG. 3 is a flowchart showing the operation of the shared memory data collection means 122 provided inside the data collection means 122, wherein the user program 122 is composed of the shared memory data collection means 122. 2 Call 2 and start from PLCs 4a, 4b, and 4 connected by different communication lines, first, production of device WO-W99, which is the product number data of PLC 4a, and then completion of production of PLC 4b User program 1 2 1 and shared memory for collecting device data in order of device data D 0 to D 49, and then to device R 1 0 to 20 which is the measured value data of PLC 4 c 5 is a flowchart showing the operation of the data collection means 122.

FIG. 4 is a flowchart showing the operation of the device data collection means 1223 provided inside the data collection means 122 for collecting data from the PLC 4. Device data collection means for protocol A 1 2 2

3a shows an operation for collecting data of devices WO to W99, which are product number data, from the PLC 4a.

FIG. 5 is a memory configuration diagram showing the contents of the shared memory 10.

Next, the operation of the data collection device according to the first embodiment will be described. First, a schematic operation will be described with reference to FIG.

The user (operator) allocates the device data to be collected, that is, the PLC that stores the device data, the collection storage destination user buffer that stores the collected device data, and the device data storage area on the shared memory area 1221. Specify interactively.

According to the user's designation of the PLC, the CPU 110 instructs the device data collection means 1 223 a, 1 223 b, and 122 3 c with the PLC specified by the user and starts up. To be applied.

The device data collection means 1 223a, 1223b, and 1223c actually communicate with the PLCs 4a, 4b, and 4c according to each communication protocol stored inside, and b, 4 Collect device data from c and store it in shared memory 1221.

The shared memory data collection means 1 222 is composed of the PLCs 4 a, 4 b, and 4 c collected by the device data collection means 1 2 23 a, 1 223 b, and 122 3 c and stored in the shared memory 122 1. Device data in the user buffer specified by the user.

In this way, the user only needs to specify the PLC from which the device data is to be collected, the collection and storage destination user buffer for storing the device data, and the device data storage area in the shared memory area 1221, so that the device data of the specified PLC can be collected. Evening can be collected.

Next, the operation of the data processing device, that is, the data of the devices W0 to W99, which is the product number data, is output from the PLC 4a, and the data of the devices D0 to D49, which are the production completed number data, are output from the PLC 4b. The operation for collecting the data of the devices R10 to 20 as the measurement data from the PLC 4c will be described in detail with reference to FIGS.

First, the work that the user himself writes to memory as a user program Explain the business.

The user specifies the PLC in which the device data to be collected is stored, and also specifies the collection storage destination user buffer for storing the collected device data and the device data storage area in the shared memory area 122 1 Create a user program to specify the password and write it to the memory 120, and end the user's own processing.

In this embodiment, the data of the devices W0 to W99, which are the product number data, are collected from the PLC 4a and stored in the user buffer at the collection storage destination, and the production completed number data is collected from the PLC 4b. Collect data from devices D0 to D49 and store them in the user buffer for collection and storage, and collect data from devices R10 to 20 that are measurement data from PLC 4c. This is the task of collecting data and storing it in an arbitrary user buffer for collection and storage. In other words, the user repeats the specification of the PLC in which the device data is stored, the specification of the user buffer for collection and storage, and the specification of the device data storage area on the shared memory area 1221, three times.

Next, the operation of the data collection means in the data collection device that operates based on the user program written by the user will be described. In step S101, the user program written by the user sends to the shared memory data collection means 1222 a device WO to W99, which is the product number data to be collected from the PLC 4a, temporarily. The shared memory data collection means 1 indicates the device data storage area 1 2 2 1a for the PLC 4a on the shared memory area 1 2 2 1 and the collection storage destination user buffer to be finally stored. Call 2 2 2 and go to step S 102.

In step S102, the shared memory data collection means 1222 stores the data corresponding to the PLC connected to the controller 100 in advance. The communication protocol that actually communicates with the PLC 4a, that is, the protocol A device data collection means 1 2 2 3a, is selected from among the communication protocols used, and the protocol A device data collection means 1 is selected. For 2 23 a, indicate the storage area 1 2 2 1 a on the shared memory that temporarily stores the device data to be collected from the PLC 4 a and the device data collected from the PLC 4 a. Activate the data collection means 1 2 2 3a and temporarily store the device data stored in the PLC 4a, that is, the product number data, in the shared memory 1221 (protocol A data). The operation of the device data collection means 122 a will be described later), and the process proceeds to step S103.

In step S103, the device data collection device for protocol A 1 2 2 3a stored from the PLC 4a device data storage area 1 2 2 1a inside the shared memory 1 2 2 1 The data of the devices WO to W99, which is the product number data, is stored in the user buffer specified by the user by the user program.

By the operation from step S101 to step S103, the device WO-W99, which is the product number from the PLC 4a, is stored in the collection storage destination user designated by the user. A series of operations for storing data in one buffer is completed.

Next, the devices D 0 to D 4 that are the number of completed production

In order to collect the data of No. 9, in step S104, the user program 1 2 1 2 sends the shared memory data collection means 1 2 2 2 D 0 to D 49 and the shared memory area 1 2 2 1 The device data storage area 1 2 2 1 b for PLC 4 b and the collection storage destination user buffer are specified, and the shared memory data collection means 1 Call 2 2 2 In step S105, the shared memory data collection means 1 222 responds to the device data collection means 1 223b for protocol B, and the device data storage areas 1221 b and PLC 4 b to be collected from the PLC 4b. The storage area 1221 b of the device data on the shared memory is designated, and the device data collection means 1 223 b for protocol B is started.

Then, in step S106, the user program 12 1 stores the protocol B device data collection means 1223b from the PLC 4b device data storage area 1221 of the shared memory 1221. Then, the user program 122 collects the data of the devices D0 to D49, which are the product number data, in the shared memory data collection means 1222 in the storage destination user buffer. This completes the data collection for devices D0 to D49, which is the product number data from PLC 4b.

Also, in order to collect the data of the devices R 10 to 20 which are the measured data from the PLC 4 c, in step S 107, the user program 121 executes the shared memory data collection means 1 222. In contrast, the device R10 to 20, which is the measurement data to be collected from the PLC 4c, and the device data storage area 1221c for the PLC 4C on the shared memory area 1221, and The user specifies the collection / storage destination user buffer and calls the shared memory data collection means 1 222.

In step S 108, the shared memory data collection means 1 222 stores the device data storage area to be collected from the PLC 4 c in contrast to the device data collection means 122 3 c for protocol C. And the PLC 4c device Instruct the storage area 1221c on the shared memory of the device memory and start the device data collection means 1223c for protocol C.

Then, in step S109, the user program 1221 reads the shared memory 1221 from the PLC 4C device data storage area 1221c. Protocol C 甩 Device data overnight collection means 1 User data 1 2 1 collects and stores the data of device R 10 to 20 as measurement value data stored in 223 c using shared memory data collection means 1 222 Collect in the first user buffer. This completes the data collection of the devices R10 to R20, which are the product number data from the PLC 4c.

Next, the operation of the device data collection means 1223a, 1223b, and 1223c of the controller 100 will be described with reference to FIGS.

The device data collection means 1 223a, 1 223b, and 1223c are different from each other only in the protocol, and have the same processing procedure. Therefore, the device data collection means for protocol A 1 223a The operation is explained using.

First, in order to collect the data of the devices W0 to W99, which are the product numbers, from the PLC 4a by the shared memory data collection means 1222, the data of the devices WO to W99, which are the product number data, are collected. Upon receiving the collection instruction, the device collection device 1223a is activated.

In step S201, the protocol A device data collection means 1 223a opens the communication line 5a in accordance with the protocol A communication procedure with the PLC 4a stored therein.

Next, in step S202, communication is performed with the PLC 4a to collect data 41a of the devices W0 to W99, which are product number data stored in the memory 40a of the PLC 4a.

Then, in step S203, the data of the devices W0 to W99, which are the collected product number data, are stored in the PLC 4a device data storage area 1221a of the predetermined shared memory 1221. (Refer to Fig. 5) In step S204, the communication line is set according to the communication procedure with PLC 4a.

5 Close a. This completes the data collection of the devices WO to W99, which are the product number data from the PLC 4a. -According to the first embodiment, the user is required to collect the data (the target of the device data) of the data collection destination, the collection storage destination user buffer for storing the collected data, and the shared memory area. By specifying the above device data storage area, the data collection means stored in the memory is activated and the communication protocol with the target PLC for data collection and the setting of line open / close are automatically set. After the collected PLC data is once stored in the shared memory, it is stored in the user buffer specified by the user. Therefore, the user only needs to be aware of the contents of the shared memory, which eliminates the need for the user to create a user program corresponding to each communication protocol every time data processing is performed. Easily create programs without the need for improved workability.

In addition, since the data is temporarily stored in the shared memory, the data transfer between the shared memory and the user buffer may be considered when storing the data in the user buffer designated by the user. With this configuration, the time required for program processing can be shortened, and the performance of the overnight processing unit (controller) improves.

Furthermore, the actual communication with the PLC 4 is left to the device data collection means, and only the shared memory access is performed from a single user program, thus improving the processing performance.

Example 2.

Embodiment 2 of the present invention relating to a data setting method will be described with reference to FIGS. 6 to 10. FIG.

Figure 6 is the _c Figure is a block diagram showing the configuration of the data setting apparatus of the present invention, 1 2 3 filed by de Isseki setting means operating in memory 1 2 within 0 The same reference numerals as those of the other embodiment 1 indicate the same or corresponding parts. FIG. 7 is a functional diagram showing the function of the data setting means 123. In the figure, 123 is a shared memory storing device data to be set in the PLCs 4a, 4b, and 4c. 1 232 is a shared memory data setting means as a data transfer means for sending and receiving device data between the shared memory 123 1 and a designated user buffer, and 1 2 3 3 is a communication protocol of the PLC 4. Device data setting means as device data processing means provided with a communication protocol storage means for storing, where 1 233a is a device A setting means for a PLC 4a connected by a protocol A, for example, an RS 232c protocol. 1233b is the protocol B, for example, the device data setting means of PLC 4b connected by Ethernet protocol, and 1233c is the protocol II, for example, the device data setting of PLC 4c connected by original LAN protocol It is a stage.

FIG. 8 is a flowchart showing the operation of the shared memory data setting means 1 2 32.The user program 1 2 1 calls the shared memory data setting means 1 2 3 For 4b and 4c, first, devices W0 to W99, which are the product number data of PLC 4a, and then? User D0 to D49, which is the data on the number of completed production units of the LC 4b, and device R10, which is the measurement data of the PLC 4c. It shows the operation of the program 1 2 1 and the shared memory data setting means 1 2 32.

FIG. 9 is a flow chart showing the operation of the device data setting means 1233 for setting data to the PLC 4. In particular, the device data setting means 1 233a for protocol A is the PLC 4a. The figure shows the operation for setting the data of the devices W0 to W99, which is the product number for the product. FIG. 10 is a memory configuration diagram showing the contents of the shared memory.

Next, the operation of the data setting device according to the second embodiment will be described. First, a schematic operation will be described with reference to FIG.

The user specifies the device for which the device data is to be set, that is, the target PLC 4 and the user buffer in which the device data for setting the PLC 4 is stored.

The shared memory data setting means 1 232 called from the user program 122 by the user stores the device data for setting in the PLC 4 in the shared memory 1221, and the device data setting means 1 233a, Start 1 233 b, 1 233 c.

The activated device data setting means 1 233 a, 1 233 b, and 1 233 c actually communicate with the PLCs 4 a, 4 b, and 4 c according to each communication protocol stored inside. And set the device device overnight for the PLCs 4a, 4b, and 4c.

In this way, the user can set the device data to the specified PLC only by specifying the PLC to set the device data and the user buffer storing the device data to be set. Can be.

Next, the operation of the data processing device, i.e., the data of device W0 to W99, which is the product number data, is stored in the PLC 4a, and the data of the devices D0 to D49, which is the production completed number data, is stored in the PLC 4b. The operation for setting the data of the devices R10 to 20, which are the measured data to the PLC 4c, will be described in detail with reference to FIGS. 8 and 10. FIG.

First, the task of writing the user program into the memory by the user himself will be described.

The user can specify the device to be set in the PLC and the device data to be set. Create a user program that specifies the user buffer in which the data is stored and the device data setting area on the shared memory area 123, write it to the memory 120, and end the user's own processing.

In this embodiment, the device data stored in the user buffer is stored in the PLC 4a, and the device data stored in the user buffer is stored in the user buffer. Work to set devices D0 to D49 as production completed number data in PLC 4b, device data stored in user buffer, and device R10 to 20 as measured data in PLC 4c This is the task of setting.

Next, the operation of the data setting device inside the data setting device that operates based on the user program written by the user will be described. In step S301, the user program written by the user sends to the shared memory data setting means 1222 a device WO to W99, which is the product number data set in the PLC 4a, and the shared memory. Device data setting area for PLC 4a on area 1 2 3 1 1 2 3 1a, and also instruct the user buffer for setting data, call the shared memory data setting means 1 2 3 2 and call step S3 0 Move to 2.

In step S302, the shared memory data setting means 1 2 3 2 sets the device data setting area 1 2 3 1a to be set in the PLC 4a of the shared memory area 1 2 2 1 in the setting obtained from the user program. The data is stored, and the flow shifts to step S303.

In step S303, the protocol A device data overnight setting means 1 2 3 3a sets the device to be set in the PLC 4a and the setting area 1 2 in the shared memory of the setting data for the PLC 4a. 3 Instruct 1a to activate the device data setting means for protocol A 1 2 3 3a, and to the device data setting area 1 2 3 1a for PLC 4a on the shared memory 1 2 3 1 Remembered Device WO-W99, that is, the product number data, is set in the PLC 4a (the operation of the device data setting means for protocol A 1 2 3 3a will be described later). I do.

By the operation from step S301 to step S303, a series of operations for setting the device number data as devices W0 to W99 in PLC 4a is completed.

Next, in step S304, the user program 1 2 1 sets the shared memory data setting means 1 2 3 in order to set the data of the devices D0 to D49, which are the production completed number data, in the PLC 4b. In contrast to 2, device D0 to D49, which is the number of completed production units to be set in PLC 4b, and device data setting area for PLC 4b on shared memory area 1 2 3 1 1 2 3 1b , And the user's buffer for setting data is indicated, and the shared memory data setting means 1 2 3 2 is called.

In step S305, the shared memory data overnight setting means 1 2 3 2 is obtained from the user program in the device data overnight setting area 1 2 3 1 b to be set in the PLC 4 b of the shared memory area 1 2 3 1. Stores the settings that have been made. Then, in step S306, for the device data setting means for protocol B 1 2 3 3b, the device to be set in the PLC 4b and the setting area 1 2 3 in the shared memory of the setting data for the PLC 4b Instruct 1b to start the device data collection device for protocol B 1 2 3 3b and start the device D 0 to D 4 9 stored in the device data setting area 1 2 3 1 b for PLC 4b. That is, the number of completed products is set in the PLC 4b. Thus, the data setting of the devices D0 to D49, which are the product number data for the PLC 4b, is completed.

In addition, devices R 10 to R 2

In step S307, to set data of 0, The program 1 2 1 1 is sent to the shared memory data setting means 1 2 32 by the devices R 1 0 to R 20 which are the measured value data to be set in the PLC 4 c and the PLC 4 on the shared memory area 1 2 3 1. The device data setting area for c 1 231 1 c and the user buffer for the setting data are specified, and the shared memory data collection means 1 232 is called.

In step S308, the shared memory data setting means 1232 stores the setting data obtained from the user program in the device data setting area 1231c to be set in the PLC 4c of the shared memory area 1 2 3 1. Store. Then, in step S309, the device setting unit 1 233c for the protocol C device data sets the device to be set in the PLC 4c and the setting area 1 in the shared memory of the setting data for the PLC 4c. 23 1c is instructed, and the device data collection means 1 2 33c for protocol C is started, and the devices R-10 to R20 stored in the device data setting area 123 1c for PLC 4c Set the measured value to PLC 4c. With the above, the data setting of the devices R10 to R20, which is the measurement value data for the PLC 4c, is completed.

Next, the operation of the device data setting means 1233a, 1233b, and 1233c of the controller 100 will be described with reference to FIGS. 9 and 10. FIG. The device data setting means 1 233 a, 1 233 b, and 1233 c are different from each other only in the protocol, and have the same processing procedure. Therefore, the device data setting means for protocol A 1 2 3 The operation is explained using 3a.

First, in order to set devices W0 to W99, which are product number data, to the PLC 4a by the shared memory data setting means 1232, a data setting instruction for devices W0 to W99, which are product number data, is received. The device data setting means 1 233a is activated. In step S401, the communication line 5a is opened in accordance with the protocol A for communication with the PLC 4a stored therein.

Next, in step S402, the data of the devices W0 to W99, which are the product number data to be set, are obtained from the device data setting area 1 2 3 1a for the PLC 4a in the shared memory 1 2 3 1. .

Then, in step S403, communication is performed with the PLC 4a, and the data 41a of the devices W0 to W99, which are product numbers, are set in the memory 40a of the PLC 4a.

In step S404, the communication line 5a is closed according to the communication procedure with the PLC 4a.

Thus, the data setting of the devices WO to W99, which is the product number data for the PLC 4a, is completed.

According to the second embodiment, the user specifies the PLC (device data target) to which the data is to be set, the user buffer in which the data to be set is stored, and the shared memory area to store the data in the memory. The set data setting means is activated, automatically sets the communication protocol with the target PLC for data setting and the line open / close, temporarily stores the user buffer data to be set in the shared memory, and designates it to the PLC. To the specified memory. Therefore, there is no need for the user to create a user program corresponding to each communication protocol each time data is processed, and programs can be easily created without requiring specialized knowledge of communication protocols, improving workability. .

In addition, since the data is temporarily stored in the shared memory, when setting the PLC specified by the user, data exchange between the shared memory and the user buffer can be considered, and the program processing of the shared memory data setting means is simple. And the time required for program processing can be shortened. Controller).

Example 3.

Third Embodiment A third embodiment of the present invention relating to a refresh type data collection method will be described with reference to FIGS. 11 to 14. FIG.

FIG. 11 is a block diagram showing the configuration of the refresh type data collection device of the present invention.

In the figure, reference numeral 124 denotes a refresh type data collecting means which operates in the memory 120, and the same reference numerals as those of the other embodiments 1 and 2 indicate the same or corresponding parts.

FIG. 12 is a functional diagram showing the function of the refresh type data collection means 124 operating in the memory 120. In the figure, 1241 indicates the PLC provided in the memory 120. 4a, 4b, and 4c are shared memories in which the device data stored in memory are stored. 1 2 4 2 is a shared memory provided in memory 1 20 and a specified user buffer. Data collection means as data exchange means for exchanging device data between devices, and 1243 are device data collection refreshes as device data processing means equipped with communication protocol storage means for storing the communication protocol of PLC 4. 1243a is protocol 8, for example, device data collection and refresh means of PLC 4a connected by RS232c protocol, and 12443b is protocol B, for example, Ethernet protocol. Connected PLC 4 The device data collection / refresh means of b, 1243c is a device data collection / refresh means of a PLC 4c connected by a protocol, for example, a proprietary LAN protocol.

Figure 13 is a flow chart showing the operation of the shared memory data overnight collection means 1 2 4 2, where the user program 1 2 1 calls the shared memory data overnight collection means 1 2 4 2 and connects via different communication lines. PLC 4a, 4b, From 4, first, devices W0 to W 99, which are the product numbers of PLC 4a, then devices D 0 to D 49, which are the number of completed production of PLC 4b, and then PLC 4c The figure shows the operation of a user program 122 and a shared memory data collection means 1242 for collecting device data in the order of measurement data R10 to R20 while refreshing the device data at the user's storage timing.

FIG. 14 is a flowchart showing the operation of the device data collection / refresh means 1 243 for collecting data from the PLC 4. In particular, the device data collection / refresh means 1 243 a for protocol A is the PLC 4 The figure shows an operation for collecting data of devices WO to W99, which are product number data from a.

Next, the operation of the data collection device according to the third embodiment will be described. First, a schematic operation will be described with reference to FIG.

The user can read the device data to be collected, that is, the PLC that stores the device data, the collection destination user buffer that stores the collected device data, and the shared memory area 124 1 Specify the device data storage area and storage timing for data refresh.

According to the user's designation of the PLC, the CPU 110 instructs the device data collection / refresh means 1 243 a, 1 243 b, and 1 243 c to the PLC designated by the user and starts up. Let it.

The device data collection and refresh means 1 243a, 1 243b, and 1 243c actually communicate with the PLCs 4a, 4b, and 4c in accordance with the communication protocols stored internally, in accordance with the storage timing. 4 a. Device data is collected from 4 b and 4 c and stored in the device storage area of the shared memory 1241. The shared memory data collection means 1242 is composed of the PLC 4a, which the device data collection collection refresh means 1243a, 1243b, and 1243c collect and store in the shared memory 1221, in accordance with the storage timing. 4b and 4c are stored in the user buffer specified by the user.

In this way, the user only needs to specify the PLC from which device data is to be collected, the collection and storage destination user buffer to be stored, and the device data storage area and the storage timing for data refresh. It can be collected while refreshing the device.

Next, the operation of the data processing device, that is, the product number data from the PLC 4a, the data of the devices WO to W99, and the data of the devices D0 to D49, which are the number of completed production units, from the PLC 4b, The operation for collecting the data of the devices R 10 to 20 as the measurement data from 4 C will be described in detail with reference to FIGS. 13 and 5.

First, the work of writing the user program into the memory as a user program will be described.

The user specifies the PLC in which the device data to be collected is stored, and also specifies the collection and storage destination user buffer for storing the collected device data, the device data storage area, and the storage timing for data refresh. The user program is created and written into the memory 120, and the user's own processing ends.

In the present embodiment, the work of collecting the data of the devices W0 to W99, which are the product number data, from the PLC 4a and storing the data in the user buffer of the collection storage destination, and the device of which the number of the completed production from the PLC 4b is Work to collect the data from D0 to D49 and store it in the user buffer for collection and storage; From PLC 4c. This is the task of collecting the data of devices R10 to R20, which are all measured data, and storing them in the user buffer of any collection destination. Therefore, the user has to specify the PLC in which the device data is stored and the user buffer for collection and storage three times.

Next, the operation of the data collection refresh means in the data collection device that operates based on the user program written by the user will be described.

In step S501, the user program written by the user sends to the shared memory data collection means 1222 a device WO-W99, which is product number data to be collected from the PLC 4a. The storage timing is specified for the shared memory area for temporary storage 1 2 4 1 on the device data storage area for PLC 4 a 1 2 4 1 a, and the collection and storage destination user buffers to be finally stored. Call the shared memory data collection means 1 2 4 2 and go to step S502.

In step S502, the shared memory data collection means 1 242 actually communicates with the PLC 4a from among the communication protocols stored in advance corresponding to the PLC connected to the controller 100. The communication protocol that performs the communication, i.e., device data collection for protocol A, and the refresh means 1 2 4 3a are selected, and the device data collection method for protocol A, refresh method 1 2 4 3a, is collected from the PLC 4a. The storage area on the shared memory that temporarily stores the device data that you want to collect and the device data collected from the PLC 4a 1 2 4 1a and the storage timing are instructed, and the device data for protocol A is collected and refreshed 1 2 Activate 4a to temporarily store the device data stored in the PLC 4a, that is, product number data, in the shared memory 1 2 4 1 (protocol A device data collection It will be described later operation of the threshold means 1 2 4 3 a), step S Move to 503.

In step S503, the product number data stored by the protocol A device data collection and refresh means 1 243a is stored from the PLC 4a device data storage area 1 241a inside the shared memory 1241. The device of the evening WO-W99 is stored in the user buffer specified by the user by the user program.

By the operation from step S501 to step S503, the data of the devices WO to W99, which is the product number data from the PLC 4a, is stored in the user storage buffer specified by the user 1 A series of work ends.

Next, in order to collect data of the devices D0 to D49, which are data of the number of completed production units, from the PLC 4b, in step S504, the user program On the other hand, devices D0 to D49, which are the data on the number of completed production units to be collected from the PLC 4b, and the device data storage area 1 24 1b for the PLC 4 b on the shared memory area 1 24 1 and the collection destination user The buffer and storage timing are instructed, and the shared memory data collection means 1 242 is called.

In step S505, the shared memory data collection means 1 242 sets the device data storage area 1 24 1 b to be collected from the PLC 4b in contrast to the protocol B device data collection fresh means 1 243b. And the storage area of the PLC 4b device data on the shared memory 1 2 4 1b and the storage timing are specified, and the device data collection and refresh means 1 243b for protocol B is started.

Then, in step S506, the user program 1221 stores the protocol B device data collection and refresh means 1243b from the PLC 4b device data storage area 1241b of the shared memory 1241. Then, the user program 122 collects the data of the devices D0 to D49, which are the product number data, using the shared memory data collection means 1242 in the storage user buffer.

This completes the data collection of the devices D0 to D49, which are the product number data from the PLC 4b.

Further, in order to collect the data of the devices R 10 to 20 which are the measurement data from the PLC 4 c, in step S 507, the user program 12 1 sends the PLC 4 c Device R10 to 20, which is the measurement data to be collected from the PLC, and the device data storage area for the PLC4C on the shared memory area 1241, and the user buffer for the collection and storage destination In addition, the storage timing is instructed, and the shared memory data collection means 1 242 is called.

In step S508, the shared memory data collection means 1 242 is compared with the device data collection and refresh means 1 243c for protocol C. Instruct the storage area 124 1c and the storage timing on the data shared memory, and start the device C overnight collection refresh procedure 15c for protocol C.

Then, in step S509, the user program 12 21 stores the protocol C device data collection / refresh means 1 243 c from the PLC 4 c device data storage area 124 1 c of the shared memory 1241, The user program 122 collects the data of the devices R10 to R20, which are the measured value data, into the collection destination user buffer using the shared memory data collection unit 1242.

This completes the data collection of the devices R10 to R20, which is the measurement data from the PLC 4c. After that, in step S510, again select whether to collect the device data of PLCs 4a, 4b, and 4c. If continuous operation is to be performed, the shared memory 1 is selected in step S511. 24 Collect device data from 1 to PLC 4a.

Similarly in steps S 5 1 2 and 5 5 13? J 413, PLC 4c collect device device overnight.

If the process is to be terminated in step S515, the device data collection and refresh process is stopped in steps S515, S516 and S517.

If not, the process returns to step S511 and performs the device data collection process again.

Next, the operation of the device data collection / refresh means 1243 will be described with reference to FIGS.

The device data collection means 1 243 a, 1 243 b, and 1 243 c are different from each other only in the protocol, and have the same processing procedure. Therefore, the device data collection and refresh means for protocol A 1 243 3 The operation will be described using a.

First, in order to collect the data of the devices WO to W99, which are the product number data, from the PLC 4a by the shared memory data collecting means 1242, a data collection instruction of the devices WO to W99, which is the product number data, is received. Then, the device refreshing means 1243a is activated.

In step S601, the communication line 5a is opened according to the protocol A for communication with the PLC 4a stored therein.

Next, in step S602, the device communicates with the PLC 4a and collects data 41a of devices W0 to W99, which are product number data stored in the memory 40a of the PLC 4a. . Then, in step S603, the data of the devices WO to W99, which are the collected product number data, are stored in the predetermined shared memory 1221, device data for the PLC 4a. Store in area 1 2 4 1 a. (See Fig. 5) In step S604, the process waits until the storage timing specified by the user comes.

In step S 605, if there is an end request from the user 1 program 1 2 1 through the shared memory data collection means 1 2 4 2, communication is performed according to the communication procedure with the PLC 4 a in step S 6 06. Close line 5a. If there is no end request, the process is repeated from step S602 again.

Thus, the continuous data collection of the devices W0 to W99, which is the product number data from the PLC 4a, is completed.

According to the third embodiment, in addition to the effect of the first embodiment, the shared memory area refreshed at the timing designated by the user without accessing the PLC connected by each protocol every time. By reading 1 2 4 1 a, 1 2 4 1 b and 1 2 4 1 c, the latest device data can always be collected.

In addition, the overhead of communication time is reduced, and the performance is further improved. Example 4.

Embodiment 4 of the present invention relating to a refresh type data setting method will be described with reference to FIGS. 15 to 18. FIG.

FIG. 15 is a block diagram showing the configuration of the refresh type data setting device of the present invention.

In the figure, reference numeral 125 denotes a refresh type data setting means which operates in the memory 120, and the same reference numerals as those in the other embodiments 1 and 2 indicate the same or corresponding parts.

FIG. 16 shows a refresh type data memory operating in the memory 120 of FIG. —Function diagram showing the function of the evening setting means 1 25, where 1 25 1 is the device data stored in the PLCs 4a, 4b; 4c provided in the memory 120. The stored shared memory, 1 2 52, is a shared memory data setting means as a data transfer means for transferring device data between the shared memory provided in the memory 1 20 and a designated user buffer, 1 253 is a device data setting refresh device as a device data processing device having a communication protocol storage device for storing the communication protocol of the PLC 4, and 1 253a is connected by a protocol 8, for example, an RS 232c protocol. PLC 4a device data setting refresh means, 1253b is protocol B, for example, PLC 4b device data overnight setting refresh means connected by Ethernet protocol, and 1253c is professional Col 〇 a device data set Rifuretsushu means connected PLC 4 c for example a proprietary LAN protocol.

FIG. 17 is a flowchart showing the operation of the shared memory data setting means 1252.The user program 1 2 1 calls the shared memory data setting method 1 2 52, and the PLCs 4a, From 4b and 4th, first, the devices W0 to W99 which are the product number data of the PLC 4a, the devices D0 to D49 which are the data of the number of completed production of the PLC 4b, and then the PLC 4c The operation of the user program 12 1 and the shared memory data collection means 1 252 for setting the device data while refreshing it at the user-specified storage timing in the order of the device R 10 to 20 which is the measured value data is shown. .

FIG. 18 is a flowchart showing an operation for setting data to the device data setting refresh means 1 253 PLC 4. In particular, the device data setting refresh means 1 253 a for protocol A stores the product number data in the PLC 4 a. Is a device WO-W 99 The operation for the operation is shown.

Next, the operation of the data setting device according to the fourth embodiment will be described. First, a schematic operation will be described with reference to FIG.

The user can set the device data to be set, that is, the target PLC 4, the user buffer that stores the device data to be set in the PLC 4, and the device data setting on the shared memory 1251 Specify the storage timing for refreshing the data setting from the area and device data setting area 1251a, 1251b, and 1251c.

Shared memory data overnight setting means called from user program 12 1

1252 stores the device data to be set in the PLC 4 in the shared memory 1251, and activates the device data setting refresh means 1253a, 1253b, and 1253c.

The activated device data setting refresh means 1 253 a, 1 253 b, and 1 253 c acquire the device data from the shared memory 122 1 in accordance with the storage timing and store it internally. Actually communicates with the PLCs 4a, 4b, and 4c according to each communication protocol.

4 Set the device data for c.

In this way, the user can specify the PLC to set the device data and the user buffer in which the device data to be set is stored, and specify the device data setting area and storage timing only by specifying the specified PLC. It can be set while refreshing the device data.

Next, the operation of the data processing device, that is, the device WO to W99, which is the product number data, is stored in the PLC 4a, and the device D0 to D49, which is the data whose production number is completed, is stored in the PLC 4b. Data from PLC 4c The operation for setting the data of the devices R 10 to R 20, which is one night, will be described in detail with reference to FIGS. 5 and 17. -First, the work of writing as a user program into the memory by the user himself will be described.

The user specifies the device to be set in the PLC, the user buffer storing the device data to be set, the device data setting area for PLC 4a in the shared memory area 1251, and the storage timing. The user program to be designated is created and written to the memory 120, and the processing of the user itself ends.

In this embodiment, the device data stored in the user buffer is

Work to set devices WO to W99 as product number data in PLC 4a, and device data stored in the user buffer to PLC 4b as devices D0 to D49 This is the task of setting the device data stored in the Ezer buffer to the devices R10 to R20, which are the measurement data, in the PLC 4c.

Next, the operation of the data setting refresh means in the data processing device that operates based on the user program written by the user will be described.

In step S701, the user program written by the user 1 is sent to the shared memory data setting means 1 2 52 by the device W0 to W, which is the product number data to be set in the PLC 4a. 9 9, Temporary shared memory area 1 2 5 1 Device data setting area for PLC 4a on 1 25 1 Instruct user buffer for setting data and set storage data, and set shared memory data The means 1 2 5 2 is called, and the process proceeds to step S702.

In step S702, the shared memory data setting means 1 2 5 2 Based on the user program, store the device data to be set in PLC 4a in the device data setting area 12501a for PLC 4a on the shared memory 1251 in the user buffer and go to step S703. Transition. In step S703, the shared memory data setting means 1 252 sends the device data setting refresh means 1 253a for the protocol A to the device to be set in the PLC 4a and the setting data setting for the PLC 4a. Specify the setting area 1 2 5 1 a on the shared memory, start the device data setting means 1 2 53 a for protocol A, and set the device data setting area 1 for the PLC 4 a on the shared memory 1 2 3 1 1 The device W0 to W99 stored in the device 25a, that is, the product number data, is set in the PLC 4a, and the device data for the protocol A is set to refresh. The process proceeds to step S704.

By the operations of steps S701 to S703, a series of operations for setting the device WO-W99, which is the product number, in the PLC 4a is completed.

Next, in order to set the data of the devices D0 to D49, which are the number of completed production units, in the PLC 4b, in step S704, the user program 1 2 1 sends the data to the shared memory data setting means 1 252. , Devices D0 to D49, which are the number of completed production units to be set in the PLC 4b, and the device data setting area 1 25 1 b for the PLC 4 b on the shared memory area 1 25 1, and the user buffer and storage of the setting data Specify the timing, and call the shared memory data setting means 1 2 52.

In step S705, the shared memory data setting means 1 52 stores the setting data obtained from the user program in the device data setting area 1 2 5 1 b to be set in the PLC 4 b of the shared memory area 1 2 5 1. I do. Then, in step S706, device data setting for protocol B For the refresh means 1 253 b, the device to be set to the PLC 4 b and the setting area 1 2 5 1 b on the shared memory of the setting data for the PLC 4 b are indicated, and the device data collection and refresh means for protocol B Activate 1 2 53 b and set the devices D 0 to D 49 stored in the device data setting area 1 2 5 1 b for PLC 4 b, that is, the number of completed products, in the PLC 4 b.

Thus, the data setting of the devices D0 to D49, which are the product number data for the PLC 4b, is completed.

Further, in order to set the data of the devices R10 to R20, which are the measurement value data, to the PLC 4c, in step S707, the user program 1211 sends the shared memory data setting means 1 On the other hand, the device R10 to R20, which is the measured value data to be set in the PLC 4c, and the PLC 4c device data on the shared memory area 1251, the setting area 1251c, and the setting data Instruct the user's buffer and storage timing in the evening, and call the shared memory data collection means 1252.

In step S708, the shared memory data setting means 1252 stores the setting data obtained from the user program in the device data setting area 1251c to be set in the PLC4C of the shared memory area 1251. I do. Then, in step S 709, the device data to be set in the PLC 4 c and the setting area 1 in the shared memory of the device to be set in the PLC 4 c and the setting data 1 2 5 1c is instructed, and the device data collection and refresh means for protocol C 1 2 53 c is activated, and the devices R 10 to R 20 stored in the device data setting area 125 1 c for PLC 4 c, that is, the measured values Set the data to PLC 4c.

With the above, the devices R10 to R2 which are the measurement value data for the PLC 4c The default setting of 0 ends.

After that, in step S710, again select whether to set the device data in PLCs 4a, 4b, and 4c. If continuous operation is to be performed, the shared memory 1 is set in step S711. 2 5 From 1 to 1, refresh the device at PLC4a at the preset timing.

Similarly, set the device data of PLC4b and PLC4c in steps S712 and S713.

If the refresh setting processing is to be terminated in step S714, the device data setting refresh means is stopped in steps S716, S717, and S718.

If not, the process returns to step S711 and performs the device data setting process again.

Next, the operation of the device 1 overnight setting refresh means 1 253 a, 1 253 b and 1 253 c of the controller 1 will be described with reference to FIGS. 16 and 18. FIG.

Since the device data setting refresh means 1 2 53 a and 1 2 53 b 1 2 53 c are different from each other only in the protocol and the processing procedure is the same, the device A setting refresh means 1 25 3 a for protocol A is used. The operation will be described with reference to FIG.

First, from the shared memory data setting means 1 252, the data of the devices W0 to W99, which are the product numbers, are set in the PLC 4a in order to set the data of the devices W0 to W99, which are the product numbers. Upon receiving the setting instruction overnight, the device data setting refresh means 16a is activated.

In step S801, the communication line 5a is opened according to the protocol A for communication with the PLC 4a stored therein.

Next, in step S802, the data which is the product number data to be set is set. The data of the devices WO to W99 is acquired from the device memory setting area 1 2 5 1 a for the PLC 4 a of the shared memory 125 1. -Then, in step S803, communication is performed with the PLC 4a, and the data 40a of the product numbers W0 to W99 are set in the memory 40a of the PLC 4a.

Next, in step S804, the process waits until the storage timing designated by the user comes.

If there is an end request from the user program 40d in step S805 through the shared memory data setting means 1 2 52, the process proceeds to step S806, and the communication line 5a is closed according to the communication procedure with the PLC a4. Read.

On the other hand, if there is no termination request, the refresh setting is repeated from step S802.

This completes the data setting of the devices WO to W99, which is the product number data for the PLC 4a.

According to the fourth embodiment, the user can store the data in the memory by specifying the PLC to which the data is to be set, the user buffer in which the data to be set is stored, and the shared memory area and the storage timing. The set data setting means is started, the communication protocol with the target PLC for setting the data and the setting of line open / close are automatically performed, and the data of the user buffer to be set is temporarily stored in the shared memory. After storing, refresh settings are made to the memory specified in the PLC.

Therefore, there is no need for the user himself to create a user program corresponding to each communication protocol every time data processing is performed, and the user can easily create a program without requiring specialized knowledge of the communication protocol, thereby improving workability. improves. In addition, since the data is temporarily stored in the shared memory, the program processing of the shared memory data setting means has a simple configuration even when setting to the PL specified by the user, and the time required for the program processing can be shortened. Performance is improved.

Furthermore, the shared memory area that is refreshed at the timing specified by the user without accessing the PLC connected with each protocol every time 1 2 5 1 a, 1 2 5 1 b, 1 2 5 1 By reading c, the latest device data can always be set.

In addition, the overhead of communication time is reduced, and the performance is further improved. Example 5.

An embodiment of the present invention relating to a data collection method will be described with reference to FIGS. 19 to 22.

FIG. 19 is a block diagram showing the configuration of the data collection device of the present invention. In the figure, 6 is an auxiliary storage device for storing a setting data file 6 1 (see FIG. 22), 1 26 is a data collection means operating in the memory 120, and 15 1 is an auxiliary storage device 6 In the IZF for an auxiliary storage device which is an interface with the above, the same reference numerals as those of the other embodiments indicate the same or corresponding parts. FIG. 20 is a functional diagram showing the functions of the data collection means 126 operating in the memory 120. In the figure, reference numeral 125 denotes a PLC 4a provided in the memory 120. , 4b, 4c, a shared memory in which the device data held is stored. 1262 is a device memory between the shared memory provided in the memory 120 and a designated user buffer. A shared memory data collection means as a means for sending and receiving data, and a device data collection means as a device data processing means provided with a communication protocol storage means for storing a communication protocol of the PLC 4. 1 2 6 3 a is a protocol 8, for example a PLC 4 a connected with the RS 2 3 2 c protocol Device data collection means, 1 2 4 3b is protocol B, e.g. PLC 4b connected by Ethernet protocol Device data collection means, 1 2 3 4c is protocol, e.g. connected by proprietary LAN protocol This is the device data collection means of the PLC 4c.

Fig. 21 shows the device data collection means for protocol A 1 2 6 3a, the device data collection means for protocol B 1 2 6 3b, and the device data collection means for protocol C 1 2 6 3c. FIG. 22 is a flowchart showing the operation, and FIG. 22 is a database format file in the auxiliary storage device 6 for storing data in which an interval for collecting PLC device data is set (hereinafter, referred to as FIG. 2 is a diagram showing a setting data file).

Next, the operation of the data collection device according to the fifth embodiment will be described. First, the schematic operation will be described with reference to FIGS. 19 and 20.

The user inputs “PLC device data collection protocol name” and “PLC device data collection interval” from keypad 3 and stores this data in the setting data file 6 1 in the auxiliary storage device 6 (see Fig. 22). Save to Next, the device data collection means for protocol A 1 2 6 3 a, the device data collection means for protocol B 1 2 6 3 b, and the device data collection means for protocol C 1 2 6 3 c Referring to the setting data file 6 1 in 6, the PLC device data stored in the PLC 4 is stored in the shared memory 1 2 6 1.

In this way, the user sets the collection of the device data from the PLC in the form of a database format setting data in the auxiliary storage device instead of the setting by the user program. Using the file, the device data collection means for various protocols can store the PLC device data in the shared memory at set intervals.

Next, device data collection means for protocol A of controller 1 1 2 6 3 a> The operation of the device data collection means for protocol B 1 2 6 3 b and the device data collection means for protocol C 1 2 6 3 c-using Fig. 19 to Fig. 22 explain.

In the flowchart shown in FIG. 21, the shared memory data collection means 1 262 uses the protocol A device developed on the memory 120 and the data collection means 1 263 a, the protocol B device. When the data collection means 1 2 6 3 b and the protocol C device data collection means 1 2 6 3 c are activated, in step S 901, the setting data file 6 in the auxiliary storage device 6 is read. Read the PLC device data collection interval corresponding to the protocol by referring to the PLC device data collection protocol name in 1.

Then, in step S902, the process waits for the PLC device data collection interval set by the user for one night, shifts to step S903, and stores the PLC device data from the PLC 4 in the shared memory 12 according to each protocol. Stored in 2 1 and return to step S902.

According to the fifth embodiment, there is no need for the user to describe the interval for collecting device data from the PLC as a user program, and the collection interval is set as a parameter for each collection protocol. Even when changing the interval, the device data collection settings can be easily changed by changing only the parameters set as parameters without changing the entire user program, improving programming workability. I do. Embodiment 6.

An embodiment of the present invention relating to a data collection method will be described with reference to FIGS. 23 to 29.

FIG. 23 is a system configuration diagram showing the system configuration of the data collection device of the present invention.

In the figure, 100, 100, and 102 are the same or equivalent controllers. Yes, it has both shared memory and refresh type data collection means. -Also, the controllers 100, 101, and 102 are connected by the same protocol E, for example, the Ethernet protocol, by the communication line 5e, which is the second communication line.

The controller 100 has a PLC 4a via a communication line 5a which is a first communication line, and the controller 101 has a PLC 5a via a communication line 5d which is a first communication line. d is connected to the controller 102 via a communication line 4 f which is a first communication line, and a PLC 4 f is connected to the controller 102 by different protocols.

FIG. 24 is a functional diagram showing the function of data collection means operating in the memory. In the figure, reference numeral 121 denotes a user program that accesses the shared memory 1271 by a unified communication procedure, Reference numeral 127 denotes a refresh type data collection means operating in the memory 120, and reference numeral 142 denotes an IZF for the protocol E. The controllers 101, 100 are provided by the same communication protocol via the communication line 5e. 2 and connected.

Also, in the refresh type overnight collection means 1 27, 127 1 is transmitted by the device data and controller 101 held by the PLC 4a, and received and stored by the controller 100. A shared memory that stores the device data held by the PLC 4d and the device data held by the PLC 4e sent by the controller 102 and received and stored by the controller 100. 1 2 7 2 is a shared memory data collection means as a data exchange means for exchanging device data between the shared memory 1 2 7 1 provided in the memory 1 20 and a designated user buffer, 1 2 73a is a device provided with communication protocol storage means for storing the communication protocol of the PLC 4a connected by the protocol A, for example, the RS232c protocol. Device data collection and refresh means as speed-up processing means. 1 2 74 sends a write request for device data on shared memory 1 27-1 of own controller 100 to other controllers 101 and 102. The writing means that sends the write request from the other controller 101 and 102, and the writing means that writes to the shared memory 1271, and the device refresh parameter 127 This is a constant interval activation means for activating the write request transmission means 1 274 at regular intervals in accordance with the device refresh parameters stored in the evening storage area 127 1 d.

1 2 7 1 d is a device refresh parameter storage area in the shared memory 1 2 7 1, which stores the device data on the shared memory 1 2 7 1 of the own controller 1 0 1 and the other controller 1 0 Refresh range, which is a range for storing device data sent to 1, 102 or other device 101, a write request from controller 102, to the device data area on shared memory 1271, , And a device refresh parameter consisting of an interval time for transmitting the device data on the shared memory 127 1 of the own controller 100 to the other controllers 101 and 102 is stored. FIG. 25 is a diagram showing the contents of the device refresh parameters set on the shared memory by the user 1. In the figure, reference numeral 20 denotes the main body of the device refresh parameters, and The data is written to the shared memory 1271 by the communication procedure unified by the user program at 0, 101, and 102, respectively.

2 1 is the interval for refreshing device data on each shared memory between controllers 100, 101, and 102.22 is the interval from controller 100 to other controllers. This is the range of device data to be transferred to 101 and 102.For example, the data of W0 to W99 and D0 to D99 are transferred to other controllers 101 and 102, respectively. It is set to transfer. Similarly, 23 is the range of device data to be transferred from the controller 101 to the other controllers 100 and 102, for example, W200 to W299 and D100 to D199 Are set to be transferred to the controllers 100 and 102, respectively.

Similarly, 24 is a range of device data to be transferred from the controller 102 to the other controllers 100, 101, for example, the data of 0200 to 13299 and the data of 10 to R99 are transferred to the other controllers 100, 10 1 It is set to transfer to each.

FIG. 26 is a diagram showing an example of the contents of a device write request transmission data to be transferred to another controller. As shown in the figure, the device write request transmission data is one of the refresh parameters. Number of settings assigned to one controller 25, Device type 26 described in Refresh parameter setting 1, Device start number 27 described in Refresh parameter setting 1, Refresh parameter setting 1 It consists of 28 transfer bytes of the device described in the setting 1 of the setting, and device data 29 to be transferred described in the setting 1 of the refresh parameter. FIG. 27 is a flowchart showing the operation of the means for activating the means for transmitting a write request to another controller in the own controller device at regular intervals in accordance with the refresh parameter.

FIG. 28 is a flow chart showing the operation of the means for transmitting a write request to another controller in the own controller device data at regular intervals according to the refresh parameter.

FIG. 29 is a flowchart showing an operation of a means for receiving a write request from another controller and writing the same in the shared memory.

Next, the operation in the sixth embodiment will be described.

First, the schematic operation will be described with reference to FIG. In accordance with the refresh parameters set by the user, the fixed interval starting means for starting the means for requesting the writing of the own controller device data to another controller at fixed intervals is started by the device on the shared memory. Read the refresh parameter 20 from the refresh parameter storage area 1 2 7 1 d.

Then, the constant interval starting means 127 6 starts the own controller device data writing request sending means 122 7 4 to another controller in accordance with the refresh interval 21 in the refresh parameter 20. The write request transmitting means 1274 reads the refresh parameter 20 from the device refresh parameter storage area 1271d on the shared memory 1271.

Then, according to the device range 22 for issuing a write request to another controller of the own controller, the device data on the shared memory 127 1 is read, and the device data is written to the other controllers 101 and 102. Sends a request to another controller via protocol IZF142 for request.

When a device data write request is received from another controller via the IZF 14 2 for protocol E, the writing means 1 27 5 starts and writes the received data to the shared memory 1 27 1.

Next, the operation of the fixed interval starting means 127 6 will be described in detail with reference to FIGS. 26 and 27 in accordance with the refresh parameters of the controller 100.

First, in order to read out the user setting time for starting the write request transmitting means 1 274 at a certain interval, the shared memory 1 2 7 1 Device refresh parameter storage area on 1 1 2 7 1 d Refresh Search for the parameter 20 and read the device refresh interval 21. Next, in step S 1002, the device refresh parameter storage area 1 2 7 1 d on the shared memory 1-27 1 is searched for the refresh parameter storage 20, and the controller 100 is used for its own controller 100. Take out 2 2 Then, in step S1003, based on the setting data 22 for the own controller 100, the setting number 25, device type 26, device head No 27, and transfer byte number 28 are extracted. In accordance with the format shown in FIG. 26, data for sending a write request to another controller is created.

Next, in step S104, a write request transmission data to another controller is instructed, and the write request transmission means 1274 is activated. After that, in step S1005, until the next time the write request transmission means 1274 is activated, the processing of the own routine is performed for the time of the device refresh interval 21 read from the refresh parameter. And wait for execution.

Since the device refresh parameter storage area 1 2 7 1 d on the shared memory 1 2 7 1 d may be changed by the user program 12 1, the processing in step S 10 01 again is performed. Execute repeatedly from.

Based on the above flowchart, the means for transmitting a write request to the other controller in the own controller device server is started periodically at a user-specified refresh interval.

Next, the operation of the write request transmitting means 1274 for transmitting a write request of its own controller device data to another controller will be described with reference to the flowchart of FIG.

In step S111, instructed by the fixed interval starting means 1 276 The device data is read from the shared memory 1 2 7 1 and the device data 2 9 of the write request transmission data to the other controller is set. Complete the transmission data.

Then, in step S1102, the refresh parameter 20 of the device refresh parameter storage area 1271d on the shared memory 1271 is searched, and the other controllers 101, 10 are searched. Read the controller numbers 2 3 and 24 in 2 and determine to which controller the transmission data is to be transmitted.

Next, in step S113, a communication line 5e of the protocol E, which is the same protocol, is opened between the controllers in order to transfer the created transmission data to another controller.

Next, in step S1104, the completed write request transmission data is transmitted to the controller numbers 23 and 24 of the other controllers 101 and 102.

When the transmission of the write request transmission data is completed, in step S1105, the communication line 5e of the protocol E which is the same protocol between the controllers is closed.

As described above, the transmission of the write request from the own controller device to the other controller is completed.

Next, in order to write the device data write request reception data from the other controller to the shared memory 1271 of the own controller 100, the operation of the writing means 1275 This will be described with reference to the flowchart of FIG.

In step S 1 201, device data write request reception data from another controller is searched, and the set number 27 is extracted. Next, in step S122, the device data overnight write request reception data from the other controller is searched, and from the device type 26, the device start No. 27, the shared memory 12 of the own controller 100 is searched. 7 Determine the write destination of the device on 1 and write the device data 29 in the received data to the determined device on the shared memory 127 1 for the number of transfer bytes. Next, in step S123, it is determined whether or not the set number of device data has been written to the shared memory 1271, and if all of the set number have been written, the processing is completed. If all data has not been written, the process returns to step S122 and performs the above-described processing.

Thus, the writing of the device data write request reception data from the other controller to the shared memory 1271 of the own controller 100 is completed.

According to the sixth embodiment, in addition to the effects of the third embodiment, data can be easily exchanged between controllers connected on the same protocol.

Embodiment 7.

An embodiment of the present invention relating to a method for setting refresh parameter overnight data will be described with reference to FIGS. 30 to 33. FIG.

The same reference numerals as those of the other embodiments indicate the same or corresponding parts. FIG. 30 is a functional diagram showing the function of the refresh parameter overnight setting means operating in the memory of the present invention. In the figure, reference numeral 121 denotes unified shared memory 1281. It is a user program accessed by communication means, and has a user program 1 2 1 1 for setting device refresh parameters on a shared memory.

1 28 is the data collection means operating in the memory 120, and 128 1 is the data collection device stored in the PLC 4 provided in the data collection means 128. 1 2 8 1 e is a storage area where device refresh parameters set in the shared memory are stored, and 1 2 8 2 is a user specified as shared memory. Shared memory data collection means as a means for sending and receiving device data to and from one buffer, and 1 283 is stored in the device refresh parameter storage area 1 281 e. Device refresh parameter data transfer means (hereinafter, transfer means) for transferring the device refresh parameter data to another controller 101, 102 via the second communication line. Judgment of the type of data transmitted from another controller, and if it is device data, write the transmitted data to the device data storage area on the shared memory 1281, and refresh the device. It is a writing means for writing the data transmitted to the device refresh storage area 1281 e if it is a parameter refresh.

FIG. 31 is a flowchart showing the operation of the transfer means 1283, FIG. 32 is a flowchart showing the operation of the writing means 1284, and FIG. 33 is a flowchart showing the device refresh operation. 5 is a flowchart showing the operation of a user program set on a shared memory.

Next, the operation will be described.

First, a schematic operation will be described with reference to FIG.

Based on the user program 1 2 1 1, the device refresh parameters stored in the shared memory 1 2 8 1 e Device refresh parameters are set in the e-data, and the device refresh parameters are set to the other controller. Start the transfer method 1 2 8 3 to transfer.

The transfer means 1 283 3 reads the device refresh parameter data from the device refresh parameter storage area 1 281 e on the shared memory, and stores the communication protocol stored in advance in the transfer means 1 283. Is transferred to another controller based on.

The writing means 1 284 4 determines whether the received data is device data or device refresh parameter data when the data received from another controller is received. Write to the device data storage area of the shared memory of the own controller in the local controller, and write it to the device refresh area of the device in the controller's shared memory in the case of the device refresh parameter data. .

Next, the operation of the transfer means 1283 for transferring the device refresh parameter data to another controller will be described with reference to the flowchart of FIG.

By designating a user buffer in which device refresh parameters are stored and a device refresh storage area in the shared memory as a user program, the user can be designated based on the shared memory data collection means 1 282. Device refresh parameter overnight data is set from the buffer to the device refresh parameter overnight storage area 1 2 8 1 e.

Then, in step S1301, the device refresh parameter storage area stored in the refresh parameter storage area 1281e is read.

Next, in step S1302, the communication protocol stored inside is read out, the communication line is opened according to the communication protocol, and the device refresh parameter is connected to another device connected by the same protocol. Transfer to controller.

As described above, by providing the transfer means, the user buffer storing the device refresh parameter data by the user program and the device refresh parameter storage area 1 on the shared memory 1 By specifying 281 e, the device refresh data set in the controller 100 can be set in the other controllers 101 and 102 in the same manner.

Next, the operation of the writing means 1284 for writing data from another controller to the shared memory will be described with reference to the flowchart of FIG. In step S1401, a data transmission to the own controller is received from another controller connected by the same protocol.

Next, in step S1402, it is determined whether the received data is device data overnight or device refreshing data overnight.

In step S1402, if the data is device refresh parameter overnight data, the flow shifts to step S1403 to receive the device refresh parameter overnight storage area 1 281 e on the shared memory of the controller. Set the received data.

On the other hand, if the received data is device data, the flow advances to step S144 to set the device data storage area in the shared memory 1281 of the controller.

By providing the writing means 1 284, the received data can be written without depending on the user program.

Next, the operation of the user program 1 2 1 1 that sets the device refresh parameter data in the shared memory will be described with reference to the flowchart of FIG.

First, in step S1501, a device refresh parameter storage to be stored in the refresh parameter storage area 1281e is created.

Next, in step S1502, the refresh parameter setting area is set to the refresh parameter setting area 1 2 8 1 e, and the transfer Activate steps 1 2 8 3.

The creation of the device refresh parameter data may be created as a user program, or the user buffer in which the device refresh parameter data is stored may be specified by the user program.

As described above, the data processing apparatus according to the present invention includes: a communication protocol storage unit that previously stores a communication protocol with a control target device connected via a communication line for each of the control target devices; According to the communication protocol stored in the protocol storage means, device data held by the controlled device is collected or device data processing means for setting device data in the controlled device; and A shared memory area for storing device data or device data to be set in the device to be controlled, and data transfer means for transferring the device data between the shared memory area and a designated user buffer. So that the user only needs to be aware of the contents of the shared memory. Collection of device data with multiple PLCs with different communication protocols can be performed in a unified procedure without having to be aware of the communication protocol. The Z setting can be performed, eliminating the need to create a complicated user program. Can be reduced. In addition, the communication with the PLC of the controller is delegated to the collection means, and since only one user program accesses the shared memory, the processing capacity is improved.

In particular, the device data overnight processing means has a refresh control function of collecting device data held by the controlled device or setting device data to the controlled device at a predetermined timing. The latest device data can be easily collected and set. Also, since the device data processing means reads a predetermined timing for performing the refresh control from the setting data file in which the data is set as the parameter, the refresh timing can be set as the parameter. However, it is easy to improve the processing capacity and change the set value by the processing based on the parameters.

In addition, since the data exchange means exchanges all data between the shared memory area and the designated user buffer using communication means set in advance, the user can specify the user buffer and the shared memory area. Only, and the workability of creating a user program is improved.

The data transfer means exchanges device data between the shared memory area and the user buffer every time the value of the device data is changed.

—Evening exchanges can be kept to a minimum.

Also, the shared memory area is divided into blocks for each device data of the control target device and stored, so that data handling becomes easy.

Further, the data processing method according to the present invention includes a step of reading a communication protocol with a control target device connected via a communication line from a communication protocol storage means stored in advance for each of the control target devices. Collecting the device data held by the controlled device via the communication line or setting the device data to the controlled device via the communication line according to the read communication protocol; Storing in the shared memory area the device data collected from the device or the device data to be set in the controlled device; and transmitting and receiving the device data between the shared memory area and the designated user buffer. , The user only needs to be aware of the contents of the shared memory, and is not aware of different communication protocols, Device data collection with multiple PLCs with different communication protocols can be performed through complicated procedures. There is no need to create a program, and the load required for one user program can be reduced. -In addition, the communication between the controller and the PLC is delegated to the collection means, and only the shared memory is accessed from the user program, so the processing capacity is improved.

In addition, since the process of storing the device data collected from the control target device or the device data set for the control target device in the shared memory area is executed at a predetermined timing set in advance, the latest device data is stored. Easily collect evenings Z can be set.

Further, in the data processing system according to the present invention, in the data processing system in which a controller connected to a device to be controlled through a first communication line is connected in plurality through a second communication line, Device data processing means for collecting device data held by the control target device or setting device data to the control target device in accordance with a communication protocol on the first communication line; and A device for transmitting and receiving the device data between the shared memory area for storing the device data collected by the device or the device data to be set in the control target device, and the designated user buffer. —Second communication protocol that stores evening communication means and the communication protocol of the second communication line in advance In accordance with the communication protocol of the second communication line stored in the second communication protocol storage device, the device data stored in the shared memory area is stored via the second communication line. The user is conscious of the contents of the shared memory because the transmission means for transmitting and the writing means for storing the device data transmitted via the second communication line in the shared memory area are provided. Only need to be aware of different communication protocols. Collection of device data with multiple PLCs and controllers that have multiple controllers Z can be set, eliminating the need to create complex user programs and reducing the load of a single user program.

In addition, the communication with the controller is delegated to the collection means, and since only one user program accesses the shared memory, the processing capacity is improved. In particular, since the first communication protocol storage means for storing in advance the first communication protocol with the control target device connected via the first communication line for each control target device is provided, It is not necessary to set the communication protocol by one program, and it is possible to prevent the program from being enlarged.

The device data processing means has a refresh control function of collecting device data held by the controlled device or setting device data to the controlled device sequentially at a predetermined timing. The latest device data can be easily collected and set between the clients.

Further, the transmitting means transmits the device data via the second communication line at a predetermined timing based on the parameters stored in the shared memory area. This makes it possible to improve the processing capacity and change the set value by processing based on the parameters.

In addition, the transmitting means operates at a constant interval from the starting means operating based on a predetermined parameter, so that the transmitting means always operates at a constant timing, improving the reliability of data, and improving the timing of the user program. There is no need to set by the ram, and the program can be prevented from becoming too large. Also, when writing the device data transmitted via the second communication line to the shared memory area, the writing means stores the data in blocks for each device. Becomes easier. Also, since the second communication line uses the Ethernet protocol, the degree of freedom of the system is increased. -Also, since the parameters stored in the shared memory are transmitted via the second communication line, the same parameters can be easily transmitted between controllers connected via the second communication line. The work efficiency of parameter setting, which has been set by reconnecting peripheral devices in the past, is improved.

In addition, it is determined whether the data transmitted via the second communication line is a parameter or device data overnight. If the data is a parameter overnight, the data is stored in the parameter storage area on the shared memory. The data is stored, and if it is device data, it is stored in the storage area for each device to be controlled, so the transmitted data can be arbitrarily classified and stored without setting by the user program, The load can be reduced. Industrial applicability

As described above, the data processing device, the data processing method, and the data processing system according to the present invention are suitable for being used in data collection Z setting between a PLC and a controller connected by a predetermined communication protocol. .

Claims

The scope of the claims -

1. Communication protocol storage means for storing in advance a communication protocol with a control target device connected via a communication line for each control target device,

Device data processing means for collecting device data held by the controlled device or setting device data to the controlled device according to the communication protocol stored in the communication protocol storage means;

A shared memory area for storing the device data collected by the device data processing means or a device data set for the controlled device;

Data transfer means for transferring the device data between the shared memory area and a designated user buffer;

Data processing device provided with.

2. The device data processing means has a refresh control function of collecting device data held by the controlled device or setting device data to the controlled device at a predetermined timing. The data processing device according to claim 1.

3. The data processing apparatus according to claim 2, wherein the device data processing means reads a predetermined evening image for performing refresh control from a setting data file in which data is set as a parameter.

4. The data transmission / reception means according to claim 1, wherein all data transmission / reception between the shared memory area and the designated user buffer is performed by a communication means set in advance. Data processing device.

5. The data transfer means is designed to transfer device data between the shared memory area and the user buffer every time the value of the device data is changed. The data processing device according to claim 1, wherein

6. The data processing device according to claim 1, wherein the shared memory area is divided into blocks and stored for each device data of each device to be controlled.

7. a step of reading a communication protocol with a control target device connected via a communication line from communication protocol storage means stored in advance for each control target device;

Collecting the device data held by the controlled device via the communication line or setting device data in the controlled device according to the read communication protocol;

Storing the device data collected from the control target device or the device data set for the control target device in the shared memory area;

Transmitting and receiving the device data between the shared memory area and the designated user buffer;

Data processing method provided with.

8. The step of storing the device data collected from the control target device or the device data to be set in the control target device in the shared memory area is performed at a predetermined timing set in advance. Data processing method described in.

9. A controller connected to the device to be controlled via the first communication line In a data processing system connected to a plurality of devices via the second communication line,

The above controller is

Device data processing means for collecting device data held by the controlled device or setting device data to the controlled device according to a communication protocol in the first communication line; A shared memory area for storing the device data collected by the device data processing means or the device data set for the controlled device;

Data transfer means for transferring the device data between the shared memory area and the designated user buffer;

Second communication protocol storage means for storing the communication protocol of the second communication line in advance;

Transmitting means for transmitting, via the second communication line, the device data stored in the shared memory area according to the communication protocol of the second communication line stored in the second communication protocol storing means; Writing means for storing the device data transmitted via the second communication line in the shared memory area;

A data processing system comprising:

10. A first communication protocol storage means for storing, in advance, for each of the control target devices, a first communication protocol with the control target device connected via the first communication line. The data processing system according to claim 9, wherein

1 1. The device data processing means has a refresh control function that collects device data held by the controlled device or sets device data to the controlled device sequentially at a predetermined timing. The data processing system according to claim 9, wherein:

12. The transmitting means according to claim 9, wherein the transmitting means transmits the device data via the second communication line at a predetermined timing based on the parameters stored in the shared memory area. Data processing system.

13. The transmitting means according to claim 12, wherein the transmitting means operates at a predetermined interval from the activating means operating based on a predetermined parameter. Data processing of:

14. The writing means, when writing the device data transmitted via the second communication line to the shared memory area, stores the data in blocks for each device. Item 10. The data processing system according to Item 9.

15. The data processing system according to claim 9, wherein the second communication line is an Ethernet protocol.

16. The data processing system according to claim 9, wherein the parameter stored in the shared memory is transmitted via the second communication line.

17. Judge whether the data transmitted via the second communication line is a parameter or device data, and if it is a parameter, store it in the parameter storage area on shared memory, 17. The data processing system according to claim 16, wherein device data is stored in a storage area for each device to be controlled.