JP2020013296A - Monitoring control system - Google Patents

Abstract

To provide a monitoring control system which, in response to addition of a new type of sensor, automatically sets a monitoring window and a POL corresponding to its profile.SOLUTION: A monitoring control system 100 comprises sensors 1a, 1b, 1c and 1d having specific profiles, a controller 2 having an I/F card 2a for transmitting and receiving data to and from the sensors and a CPU card 2b for executing a POL program, and a monitoring terminal 4 having an engineering tool function unit 4b for generating a POL program and an HMI function unit 4a for monitoring control with an instrumentation panel, and these are connected by a control network 3. When a sensor is added to the monitoring control system, the controller reads out a profile of the sensor to transmit it to the monitoring terminal, and the monitoring terminal automatically sets a POL program and an instrumentation panel on the basis of the received profile of the sensor.SELECTED DRAWING: Figure 1

Description

  The present application relates to a monitoring control system that performs plant monitoring control using a sensor network.

  In a conventional monitoring and control system using a sensor network, a sensor corresponding to a lower-level information model, an information collection server of a monitoring device corresponding to a data updating module of a higher-level model, and a directory server for controlling these are connected to a network. When a new sensor is added, the directory server detects this by polling, and detects the type of sensor obtained from the sensor and the required instance (module for communication, GUI for monitoring, etc.). Send to lower-level sensors and upper-level information collection servers, and use the instance to collect data from the added sensors and display them on a monitoring GUI (Graphical User Interface). The plug-and-play (PnP) It is realized. (See Patent Document 1)

Japanese Patent No. 5912018

  In the conventional monitoring control system using the sensor network as described above, it is necessary to prepare a class corresponding to the sensor in a directory server which is an upper system. For this reason, if a new sensor with no information such as class is added, it is necessary to add a setting corresponding to that sensor, and complete plug and play cannot be realized. Was.

  The present application has been made in order to solve the above-described problem. By providing a profile corresponding to the sensor on the sensor side, when a sensor is added, the profile of this sensor is read, and monitoring according to the profile is performed. An object of the present invention is to provide a monitoring control system that automatically sets a screen and a POL.

  A monitoring control system disclosed in the present application creates a sensor having a specific profile, an I / F card for transmitting and receiving data to and from the sensor, and a control device having a CPU card for executing a POL program, and creates the POL program. A monitoring terminal having an engineering tool function unit and a monitoring terminal having an HMI function unit for performing monitoring control by an instrumentation panel, wherein the sensor, the control device, and the monitoring terminal are connected via a control network; When the sensor is added to the monitoring control system, the control device reads the profile of the sensor and transmits the profile to the monitoring terminal, and the monitoring terminal reads the POL program and the instrumentation based on the received profile of the sensor. It is characterized by automatically setting the panel. .

  According to the monitoring control system disclosed in the present application, when a new sensor is added, it is possible to read out the profile of the sensor and automatically set a monitoring screen and a POL program according to the profile.

FIG. 1 is a schematic diagram illustrating an overall configuration of a monitoring control system according to a first embodiment. 5 is a diagram illustrating an example of a profile of a sensor according to Embodiment 1. FIG. FIG. 3 is a diagram illustrating an example of a POL sheet of the sensor according to the first embodiment. FIG. 3 is a block diagram illustrating a hardware configuration of a control device according to the first embodiment. 3 is a diagram illustrating an example of an instrumentation panel of an HMI function unit according to Embodiment 1. FIG. 5 is a diagram illustrating an example of a signal definition of an engineering tool function unit according to Embodiment 1. FIG. FIG. 4 is a workflow diagram for explaining an operation of the monitoring control system according to the first embodiment. FIG. 7 is a schematic diagram illustrating an overall configuration of a monitoring control system according to a second embodiment. FIG. 11 is a workflow diagram for explaining an operation of the monitoring control system according to the second embodiment. FIG. 13 is a schematic diagram illustrating an overall configuration of a monitoring control system according to a third embodiment. FIG. 14 is an image diagram for explaining an operation of the monitoring control system according to the third embodiment. FIG. 14 is a schematic diagram illustrating an overall configuration of a monitoring control system according to a fourth embodiment.

Embodiment 1 FIG.
Hereinafter, embodiments of the present application will be described with reference to the drawings.
FIG. 1 is a schematic diagram showing a main configuration of a monitoring control system according to Embodiment 1. In the drawing, a monitoring control system 100 is attached to plant equipment to be monitored and connected directly to each other. A plurality of sensors 1a, 1b, 1c, 1d forming an ad hoc sensor network configured, a control device 2 connected to the sensor network, and a monitoring terminal connected to the control device 2 via a control network 3 And 4.

Here, each of the sensors 1a to 1d has a specific profile corresponding to each sensor. As shown in FIG. 2, an analog signal AI104 is provided as an input signal of the sensors 1a to 1d, and a POL (Problem Oriented) is used. One program combining an IN instruction and a MONI instruction is provided as a Language) program, and one SMONI type instrument panel is provided as an instrument panel of an HMI (Human Machine Interface) function unit 4a. The ID is an ID unique to the system, and the attribute of the profile is specified by the ID. Further, the profile is created based on the rules determined between the sensor manufacturers.
According to the attributes of the POL program having such a profile, a POL sheet is automatically generated by connecting an IN command and a MONI command as shown in FIG. 3 and inputting an analog signal AI104.

  The control device 2 includes a sensor network I / F (interface) card 2a for inputting and outputting to the sensor network, and a CPU card 2b for executing a POL program, and collects information from the sensors 1a to 1d. The POL program is used to calculate and output the result to the actuator.

As shown in FIG. 4, an example of a hardware configuration of the control device 2 includes an input circuit 20a for inputting detection values of various sensors, a storage device (ROM) 20b storing a control program, and a data storage device. And a central processing unit (CPU) 20d for executing arithmetic processing based on various data, and an output circuit 20e for outputting an arithmetic result. .
That is, the information of the POL sheet transferred from the sensor network to the control device 2 is executed in the CPU card 2b of the control device 2.

  This POL sheet is used to convert the analog signal AI104 into a signal from 0 to 100% that can be used in the POL program, or to perform processing for generating an alarm when the value of the analog signal AI104 becomes an abnormal value. Become.

Further, the monitoring terminal 4 is configured by a general-purpose personal computer, and includes a system diagram for displaying plant monitor data by the sensors 1a to 1d on a screen imitating the plant, and an instrumentation panel for displaying plant instrument values. An HMI (Human Machine Interface) function unit 4a provided with an operation panel for sending a control signal to the plant equipment, and a POL (Problem Oriented Language) programming in the control device 2 are executed to enter the plant equipment and the HMI function unit 4a. And an engineering tool function unit 4b having a signal definition for performing output.
Here, when the sensor 1d is added, a panel for the sensor 1d is added to the instrumentation panel of the HMI function unit 4a as shown in FIG. 5, and a SMONI type panel specified by the profile is automatically added. ing. The instrumentation panel can be of various types depending on the AI to be monitored. The monitoring terminal 4 can be similarly operated at a plurality of mounting positions by connecting the plurality of terminals to a network.

  FIG. 6 shows an example in which a signal S4-AI104 for monitoring the sensor 1d is added to the signal definition of the engineering tool function unit 4b, and the POL program and the instrumentation panel use the signal definition to make the control device 2 From the CPU card 2b. That is, the communication ID for acquiring data on the control network is specified by the unique symbol of the signal S4-AI 104, and the data by the sensor 1d is collected.

Next, an operation when a sensor is newly added in the monitoring control system having the above configuration will be described with reference to FIG.
In the figure, when the sensor 1d is newly attached to the plant equipment (step S1), the sensor 1d automatically updates the sensor network according to a predetermined protocol and becomes able to transmit and receive (step S2). Accordingly, the control device 2 detects the addition of the sensor 1d by the I / F card 2a, and at the same time, acquires the profile of the sensor 1d from the sensor 1d via the sensor network (step S3).

  Next, the I / F card 2a notifies that the sensor 1d has been added to the CPU card 2b and transmits the profile of the sensor 1d (step S4). Further, the CPU card 2b transmits the profile via the control network 3. Then, the notification of the addition of the sensor 1d and the profile of the sensor 1d are transmitted to the HMI function unit 4a and the engineering tool function unit 4b of the monitoring terminal 4 (step S5).

  Thereafter, the engineering tool function unit 4b automatically adds a necessary POL program and a signal definition required for monitoring and control from the received profile of the sensor 1d (step S6). The necessary display is automatically created and additionally displayed on the operation panel screen (step S7).

  As described above, the monitoring terminal 4 is configured by using the sensors 1a to 1d having a specific profile and automatically adding necessary information to the monitoring terminal 4 from the profiles of the sensors 1a to 1d. Even when a new sensor for which sensor information is not recorded in advance is added, monitoring by the added sensor can be performed without inputting sensor information.

Embodiment 2 FIG.
In the first embodiment, when a new sensor is added, the control device 2, the HMI function unit 4a, and the engineering tool function unit 4b are automatically set to collect sensor data. However, in an actual site, after the sensor is connected, it is necessary to test whether the sensor is operating normally and communicating normally. That is, if the sensor is broken, not only cannot data be collected correctly, but also a wrong control signal is output, causing a malfunction of the plant. Conventionally, such a test has been performed manually, but in the second embodiment of the present application, the test is automatically performed.

FIG. 8 is a schematic diagram illustrating an overall configuration of the monitoring control system according to the second embodiment.
In the figure, a new sensor 1d added to the monitoring and control system uses a sensor having a readback function, and the other hardware configuration is the same as that of the first embodiment.

Next, the operation of the monitoring control system according to the second embodiment will be described using the workflow shown in FIG.
First, the operation of automatically adding the POL program and the signal definition to the monitoring terminal 4 with the addition of the new sensor 1d is performed in the same manner as steps S1 to S7 shown in FIG.

  Next, in order to test the sensor 1d, a signal is automatically set in the AI 104 of the engineering tool function unit 4b (step S11), and a value is set in the CPU card 2b of the control device 2 via the control network 3 (step S11). Step S12). When the CPU card 2b sets this value in the corresponding area of the I / F card 2a, the I / F card 2a sets the value to the sensor 1d (step S13).

  Next, the sensor 1d reads back the output corresponding to the set value by the readback function, and the I / F card 2a reads the readback value (step S14). Further, the I / F card 2a writes the read value to the CPU card 2b (Step S15), and the CPU card 2b returns the value to the engineering tool function unit 4b via the control network 3 (Step S16).

Finally, the engineering tool function unit 4b compares the readback value with the initially set value and determines whether the readback value is within a predetermined error range (for example, less than 0.5%) (step S17). Here, if both are within the predetermined error range, the sensor 1d determines that the sensor has passed, and if it exceeds the predetermined error range, it determines that the sensor 1d has failed. For example, when the data of 0%, 25%, 50%, and 100% is set in the sensor 1d, and the difference between the readback value and the readback value is obtained. Is determined to be normal, and this is displayed on the operation panel or the like of the HMI function unit 4a.
Specifically, when the temperature sensor is -10 ° C to 370 ° C (digital value 0 to 4096), the temperature is set to 0, 1024, 2048, and 4096, and the readback value is -10 ° C, 85 ° C, 180 ° C, Check if the temperature reaches 370 ° C.

  As described above, by using the readback function, the operation check of the newly added sensor 1d can be automated, and the work at the time of adding the sensor can be made more efficient.

Embodiment 3 FIG.
In the above-described first embodiment, it is possible to automatically perform monitoring control in a factory connected by the control network 3, but in recent years, monitoring and controlling a remotely located factory via the Internet has been performed. In such a case, the addition of a new sensor had to be manually set on the remote server. In the third embodiment, such setting of the remote server is automatically performed.

FIG. 10 is a schematic diagram illustrating a monitoring control system according to the third embodiment, which is configured to include a remote server 11 and a remote monitoring device 12 connected to the monitoring terminal 4 via the Internet 10. Note that a database 13 is connected to the remote server 11.
The other configuration is the same as that of the first embodiment, and thus the same reference numerals are given and the description is omitted.

Next, the operation of the monitoring control system according to the third embodiment will be described.
First, the operation of automatically adding the POL program and the signal definition to the monitoring terminal 4 with the addition of the new sensor 1d is performed in the same manner as in steps S1 to S7 shown in the first embodiment (FIG. 7).
Next, upon detecting the addition of a new sensor 1d, the HMI function unit 4a of the monitoring terminal 4 notifies the remote server 11 via the Internet 10 that the sensor 1d has been added, and the profile of the sensor 1d. Signal information is also transmitted, and the remote server 11 receives this signal and stores the data of the sensor 1d in the database 13. Outputs from the sensors 1a to 1d are supplied to the database 13 via the control device 2, the monitoring terminal 4, and the remote server 11, and accumulate data to be monitored.
The data thus accumulated is selected and displayed by the remote monitoring device 12.

FIG. 11 is an image diagram in which data collected by the remote server 11 is monitored by the remote monitoring device 12.
The remote monitoring device 12 can refer to the signal list of the remote server 11 and display the accumulated data from the signal list in a trend graph or the like.
Therefore, the data selected from the signal list can be easily displayed on a monitor window or the like by dragging and dropping the data on the screen of the remote monitoring device 12.
As described above, in the third embodiment, the setting of the remote server 11 is also automated, and the data of the remote factory can be automatically collected. Therefore, the efficiency of the monitoring work by the remotely located monitoring terminal can be improved. it can.

Embodiment 4 FIG.
In the first embodiment, when a sensor is added, settings for monitoring and control can be automatically performed by using a profile. For example, since a sensor manual is large in size, it is stored in the sensor 1d. In the past, it was necessary to manually download and use this from a sensor manufacturer's homepage or the like. For this reason, in the fourth embodiment, this procedure is automated.

FIG. 12 is a schematic diagram illustrating a monitoring control system according to the fourth embodiment, which is configured to include a Web server 14 and a database 15 connected to the monitoring terminal 4 via the Internet 10.
In FIG. 12, a POL program and a signal are automatically added to the engineering tool function unit 4b of the monitoring terminal 4 with the addition of the new sensor 1d, but when these own settings are completed, they are added. When the data related to the sensor 1d is searched for on the homepage of the manufacturer's Web server 14 on the Internet 10 and a manual or the like is found, it is automatically downloaded to the monitoring terminal 4. For this reason, the information of the additional sensor 1d can be newly referred to by the monitoring terminal 4.
These operations can be performed by programming the monitoring terminal 4 composed of a general-purpose personal computer.
As described above, according to the fourth embodiment, since it is possible to automatically collect and refer to the related information of the sensor, it is possible to save the user from having to collect information.

Although the present disclosure describes exemplary embodiments, various features, aspects, and functions described in the embodiments are not limited to the application of the specific embodiments, and may be singularly described. , Or various combinations are applicable to the embodiments.
Accordingly, innumerable modifications not illustrated are contemplated within the scope of the technology disclosed herein. For example, it is assumed that at least one component is modified, added, or omitted.

1a, 1b, 1c, 1d: sensor, 2: control device, 2a: I / F card,
2b: CPU card, 3: control network, 4: monitoring terminal,
4a: HMI function part, 4b: Engineering tool function part,
10: Internet, 11: Remote server, 12: Remote monitoring device,
13: Database, 14: Web server, 15: Database

Claims (4)

Monitoring by a sensor having a specific profile, a control device having an I / F card for transmitting and receiving data to and from the sensor and a CPU card for executing a POL program, and an engineering tool function unit and an instrumentation panel for creating the POL program A monitoring terminal having an HMI function unit that performs control, a monitoring control system comprising the sensor, the control device, and the monitoring terminal connected to a control network,
When the sensor is added to the monitoring control system, the control device reads the profile of the sensor and transmits the profile to the monitoring terminal, and the monitoring terminal reads the POL program and the instrumentation based on the received profile of the sensor. A monitoring and control system characterized by automatically setting panels.   The sensor has a readback function, and after adding the sensor to the monitoring control system and automatically setting the POL program and the instrumentation panel, the engineering tool function unit outputs a value to the sensor. The monitoring control system according to claim 1, further comprising an automatic test function for transmitting and reading the readback value read by the sensor, and determining whether the readback value is within a normal range.   The monitoring terminal further includes a remote server connected to the monitoring terminal via the Internet and a remote monitoring device that displays data stored in the remote server, and when the sensor is added, in addition to the monitoring terminal, The monitoring control system according to claim 1, wherein the addition of the sensor is notified to a remote server, and a profile is transmitted, so that the remote server collects data of the sensor.   The engineering tool function unit of the monitoring terminal, after automatically setting the POL program and the instrumentation panel by adding the sensor, collects manual information of the sensor via the Internet, and monitors the sensor at the monitoring terminal. 4. The supervisory control system according to claim 3, wherein manual information is referred to.

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