CN110832411A - Computer updating test auxiliary device - Google Patents
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- CN110832411A CN110832411A CN201780085980.1A CN201780085980A CN110832411A CN 110832411 A CN110832411 A CN 110832411A CN 201780085980 A CN201780085980 A CN 201780085980A CN 110832411 A CN110832411 A CN 110832411A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The computer update test auxiliary device (4) is connected to both the existing upper network (24) and the newly installed lower network (15). The HUB (5) has a port mirroring function for capturing packets in actual operation of a steel production line flowing through an existing upper network (24). A packet data storage unit (621) stores packet data consisting of the data content and the collection time of the packet captured by the HUB (5). A test data output unit (64) writes the data content of a packet necessary for the arithmetic processing of a new design computer (11) into a storage area of a shared memory (310) corresponding to an address, while maintaining the relative timing between the collection times of packets captured by a HUB (5), in accordance with a test data definition table (622).
Description
Technical Field
The present invention relates to a computer update test support device, and more particularly to a computer update test support device suitable for a function confirmation test when an existing control system of an iron and steel production line is updated to a new control system.
Background
A control system is known in which an upper computer and a lower Programmable Logic Controller (PLC) are connected in data communication to control the operations of respective devices constituting a steel production line in cooperation with each other. When an existing control system is updated to a new control system as the control system ages, a function verification test of the new control system needs to be performed.
As one of the test methods, parallel operation (parallel run) is known (japanese patent laid-open No. 2017-41000). According to the parallel operation, the same signal is input to both the existing control device and the new control device that control the plant, and these devices are operated in parallel to verify the update. However, in order to input the same signal to both control devices, it is not easy to retrofit an existing control system in operation with equipment for parallel operation, and there is a concern about an influence on the operation state of the plant. Further, the specification of the signal input to the newly installed control device must be the same signal constraint as that of the aged existing control device.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2017-41000
Disclosure of Invention
Problems to be solved by the invention
As one of the function confirmation tests when the existing control system is updated to the new control system, it is necessary to confirm the operation of the host computer (new design computer) of the new control system. In order to newly design a test of a computer, a computer update test support device is sometimes prepared. In a conventional computer updating test support device, input data for a test required for arithmetic processing of a newly installed computer is manually input in advance. However, the work cost for preparing the input data for the test is large, and the data created by manual input is different from the actual work data.
In addition, for the test of the newly designed computer, it is conceivable that a lower control network (existing lower network) to which a lower PLC of an existing control system is connected and a lower control network (new lower network) to which a lower PLC of a newly designed control system is connected are connected by a gateway. In this way, all the input/output signals of the existing lower network are transferred to the new lower network, and therefore, the actual work data output by the existing PLC during work can be used for the test of the new design computer. However, on the side of a newly designed computer as a test object, a mechanism for selecting data necessary for a function verification test is required, and this is not an appropriate environment for a test of the newly designed computer.
In addition, the existing bit network is often configured by a high-speed control data network dedicated to a manufacturer. Therefore, it is difficult for a manufacturer who does not have any design at the time of construction of an existing control system (usually 10 to 15 years ago) to analyze transmission/reception data of an existing network and obtain information necessary for updating the existing control system. Therefore, the update work is forced to depend on the manufacturer who has designed the existing control system, and there is a problem that the cost of the update work cannot be reduced to a low cost and the latest technical restrictions introduced at the time of the update work are large.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a computer update test support device capable of easily obtaining information on the design and operation of an existing control system and efficiently performing a function confirmation test of a newly designed computer of a newly designed control system using actual work data.
Means for solving the problems
In order to achieve the above object, the computer update test support device is configured as follows. The computer updating test auxiliary device is used for connecting the existing control system and the newly-designed control system and testing the newly-designed computer.
The existing control system comprises: a lower network is established, and an existing programmable logic controller (hereinafter referred to as an existing PLC) is connected with an existing gateway; and an established upper network, transmitting packets between the established gateway and the designed computer; the designed computer cooperates with the designed PLC to control the steel production line.
The newly-installed control system is provided with a newly-installed lower network and a newly-installed upper network for connecting a newly-installed gateway with a newly-installed computer, wherein the newly-installed lower network is provided with a plurality of nodes with a shared memory, and the newly-installed upper network and the newly-installed PLC cooperate to control the steel production line, and data is transmitted and received between the newly-installed programmable logic controller (hereinafter referred to as the newly-installed PLC) connected to 1 node and the newly-installed gateway connected to the other 1 node through synchronization of the shared memory among the plurality of nodes.
The computer updating test auxiliary device comprises a HUB, a packet data storage unit, a data display unit and a test data output unit.
The HUB is connected to an existing upper network, and has a port mirroring (port mirroring) function of capturing packets in actual operation of a steel production line flowing through the existing upper network. The packet includes an IP packet.
The packet data storage unit stores packet data including the packet collection time and the data content captured by the HUB. The data content includes a data value. Data entries may also be included.
The data display section displays each packet of data stored in the packet data storage section.
The test data output unit writes the data content of the packet necessary for the arithmetic processing of the newly installed computer into the storage area corresponding to the address of the shared memory while maintaining the relative timing between the collection times of the packets captured by the HUB, in accordance with a test data definition table defining the correspondence between the data content of the packet necessary for the arithmetic processing of the newly installed computer and the address designating the storage area of the shared memory into which the data content is written.
According to the computer update test support device according to the present embodiment, packets can be collected from an existing upper network communicating with a normal network protocol that transmits packets, and the collection time and data content of each packet can be stored and displayed. Therefore, compared to analyzing data from an existing lower network communicated by a network protocol unique to the manufacturer, analysis of data used in the existing control system is easier, and design, operation, and function sharing of the existing control system can be easily examined. Even a manufacturer having no relation to the design and manufacture of an existing control system can easily perform investigation, and a new control system having high quality can be inexpensively constructed in a short period of time.
Further, only the actual job data required for the arithmetic processing of the newly installed computer can be transmitted to the newly installed control system side. Therefore, a mechanism for selecting data does not need to be chosen on the new design computer side, and an environment suitable for the test of the new design computer can be provided. In addition, since the actual operation data of the steel production line can be used, the quality of the test data can be improved, and the manufacturing cost of the test data can be reduced. Therefore, the efficiency of the test can be improved, and a new control system with high quality can be constructed.
Further, since the HUB is connected to the existing upper network, it is possible to minimize the modification of the existing control system as compared with the parallel operation, and to suppress the influence on the operation of the steel production line.
Effects of the invention
According to the computer update test support device according to the present embodiment, it is possible to easily obtain information on the design and operation of an existing control system and efficiently perform a function confirmation test of a newly designed computer of a newly designed control system using actual work data.
Drawings
Fig. 1 is a diagram for explaining a configuration of a control system for controlling a steel production line (steel plant).
Fig. 2 is a diagram for explaining scan transmission in a newly set-down network.
Fig. 3 is a block diagram for explaining the configuration of the computer update test support device according to embodiment 1 of the present invention.
Fig. 4 is a block diagram showing an example of a hardware configuration of a processing circuit provided in the test support unit.
Fig. 5 is a block diagram for explaining the configuration of a computer update test support device according to embodiment 2 of the present invention.
Fig. 6 is a block diagram for explaining the configuration of a computer update test support device according to embodiment 3 of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same reference numerals are given to the common elements in the drawings, and redundant description is omitted.
Fig. 1 is a diagram for explaining a configuration of a control system for controlling a steel production line (steel plant). In fig. 1, a new control system 1, an existing control system 2 and a computer update test assistance device 4 are depicted.
The control target of the newly installed control system 1 is the same as the control target of the existing control system 2 in the steel production line. The computer update test support device 4 can provide actual operation data in the existing control system 2 to the test target device of the new control system 1 in order to support the function confirmation test required when the existing control system 2 is updated to the new control system 1. The devices to be tested are a newly installed computer 11 and a newly installed gateway (newly installed GW) 12.
(New control system)
The newly installed control system 1 includes a newly installed computer 11, a newly installed gateway 12, a plurality of newly installed programmable logic controllers 13 (newly installed PLC13), a newly installed upper network 14, and a newly installed lower network 15. The newly installed computer 11 and the newly installed gateway 12 are connected by a newly installed host network 14 which is a normal network protocol (TCP/IP or UDP/IP) for transmitting packets. The newly installed gateway 12 and the newly installed PLC13 are connected by a newly installed bit network 15 that is a different protocol from the newly installed bit network 14. The new lower bit network 15 is a high-speed control data network. The transmission in the newly installed upper network 14 is aperiodic data transmission, and arbitrary data is transmitted at arbitrary timing.
The control system shares the control range of the steel production line through a plurality of PLCs. In fig. 1, the plurality of new PLCs 13 include the new PLCs 131 and 132, but 3 or more new PLCs may be included. In the following description, the new PLC131 and 132 will be referred to simply as a new PLC13 when it is not necessary to distinguish them.
The newly-installed network 15 is a network for controlling a plant, which realizes high reliability and real-time performance. Specifically, the new lower bit network 15 is a network that can ensure the simultaneity of control data by scan transfer (periodic bulk transfer) based on the shared memory system.
The new lower-level network 15 includes a plurality of nodes (node a31 to node D34). The node a31 is connected to the computer update test support apparatus 4, the node B32 is connected to the newly installed gateway 12, the node C33 is connected to the newly installed PLC131, and the node D34 is connected to the newly installed PLC 132. The number of nodes is not limited to this.
Fig. 2 is a diagram for explaining scan transmission in the new set-down network 15. As shown in FIG. 2, the plurality of nodes A31-D34 have the same structure of the shared memories 310-340, respectively. The shared memories are assigned, without overlapping, a storage area in which output data of the computer update test support device 4 is written, a storage area in which setting information of the newly designed computer 11 is written, a storage area in which output data of the newly designed PLC131 (including output data of the drive device and the sensor) is written, and a storage area in which output data of the newly designed PLC132 (including output data of the drive device and the sensor) is written.
Each node has a group transfer function of periodically group-transferring data on a shared memory managed by the node to all other nodes. For example, the node a31 periodically transfers the data written in the storage area of the output data of the computer update test support apparatus 4 in the shared memory 310 to all other nodes in a group, and synchronizes the data in the shared memories. The new set-down bit network 15 is capable of performing scan transfers in a few millisecond period.
The description is continued with reference back to fig. 1. The new design computer 11 is a process computer that comprehensively manages the manufacturing process of the steel production line, and performs setting calculation for plant control using a physical model simulating a rolling phenomenon, for example. The result of the setting calculation (setting information) is transmitted to the new PLC13 via the new gateway 12 that converts the protocol between the new higher-level network 14 and the new lower-level network 15 at a necessary timing.
The newly installed PLC13 controls each of the devices (not shown drive devices and sensors) constituting the steel production line using the setting information of the newly installed computer 11. The driving device is a device for driving a roll of a rolling mill, a water injection device of a run-out table, a coiler and the like. The sensors are devices for detecting the thickness, width, temperature, and rotational speed of the motor of the material to be rolled. The data output from the newly installed PLC13 is converted into a transmission scheme of the newly installed upper network 14 by the newly installed gateway 12, and is transmitted to the newly designed computer 11. Thus, the newly-installed computer 11 and the newly-installed PLC13 control the steel production line together.
(existing control System)
The existing control system 2 is an old control system, and has, for example, the same configuration as the newly installed control system 1.
The existing control system 2 includes an existing computer 21, an existing gateway 22 (existing GW22), a plurality of existing programmable logic controllers 23 (existing PLC23), an existing upper network 24, and an existing lower network 25. The existing computer 21 and the existing gateway 22 are connected by an existing upper network 24 that is a normal network protocol (TCP/IP or UDP/IP) that transmits packets. The existing gateway 22 and the existing PLC23 are connected by an existing lower network 25 that is a different protocol from the existing upper network 24. The transmission in the existing upper network 24 is aperiodic data transmission, and arbitrary data is transmitted at arbitrary timing.
In fig. 1, the plurality of existing PLCs 23 include the existing PLCs 231 and 232, but 3 or more existing PLCs may be included. In the following description, the PLC231 and the PLC 232 will be referred to as the existing PLC23 without distinction.
The existing lower network 25 is a manufacturer-specific high-speed control data network that supports the design of the existing control system, and has a unique network protocol. Therefore, it is difficult for a person other than the manufacturer who has designed the existing control system to analyze the data.
The existing design computer 21 is a process computer that comprehensively manages the manufacturing process of the steel production line, and performs setting calculation for plant control using a physical model simulating a rolling phenomenon, for example, as in the new design computer 11. The result of the setting calculation (setting information) is transmitted to the existing PLC23 via the existing gateway 22 that converts the protocol between the existing upper network 24 and the existing lower network 25 at a necessary timing.
The existing PLC23 controls each of the devices (not shown drive devices and sensors) constituting the steel production line using the setting information of the existing design computer 21. The data output from the existing PLC23 is converted into a transmission format of the existing upper network 24 by the existing gateway 22, and is transmitted to the existing computer 21. Thus, the existing computer 21 and the existing PLC23 control the steel production line together.
(computer update test auxiliary device)
Next, the computer-update-test support apparatus 4 will be described. Fig. 3 is a block diagram for explaining the configuration of the computer update test support device 4.
The computer update test support device 4 is connected to both the existing upper network 24 and the newly installed lower network 15. The computer update test support device 4 includes a HUB5 and a test support unit 6.
HUB5 is connected to an established host network 24 between designed computer 21 and established gateway 22. HUB5 has a port mirroring function that captures packets flowing in the existing bit network 24. Specifically, HUB5 is a switching HUB having a relay HUB and a mirror port. They are commonly sold in the market and can be easily and inexpensively obtained. Furthermore, the HUB5 can be easily installed by connecting a LAN cable to which the upper network 24 is already installed. The HUB5 transfers the ladle in actual operation of the steel production line transferred between the existing PLC23 and the existing design computer 21 to the test support 6.
The test support unit 6 includes a pack collection unit 61, a data storage unit 62, a data display unit 63, and a test data output unit 64.
The packet collection section 61 collects each packet captured by the HUB 5. The test support unit 6 stores a file defining a communication data format used in the existing host network 24, and identifies the content of the received data according to the definition.
The data storage unit 62 includes a packet data storage unit 621 and a test data definition table 622. The data storage unit 62 is realized by a ROM 102 and a storage device 108 of fig. 4, which will be described later.
The packet data storage section 621 stores packet data composed of the collection time (collection timing) of the packet captured by the HUB5 and the data content. The data content includes a data value. Data entries may also be included.
In the test data definition table 622, the correspondence relationship between the data content of the packet necessary for the arithmetic processing of the new design computer 11 and the address specifying the storage area of the shared memory to which the data content is written is defined.
The data display unit 63 displays each packet of data stored in the data storage unit 62, that is, the collection time of the packet and the data content thereof, according to an operation by an operator. The display means includes a screen output and/or a print output.
The test data output unit 64 writes the data content of the packet necessary for the arithmetic processing of the newly installed computer 11 into the storage area corresponding to the address of the shared memory 310 while maintaining the relative timing between the collection times of the packets captured by the HUB5, in accordance with the test data definition table 622. For example, by converting the data defined in the test data definition table into the communication data format of the newly set-down network 15 in real time and outputting the converted data to each packet captured by the HUB5, a test that ensures real-time performance from actual operation data can be performed.
(Effect)
According to the computer update test support apparatus 4 of the present embodiment, packets can be collected from the existing host network 24 that transmits packets and communicates using a normal network protocol, and the collection time and data content of each packet can be stored and displayed. Therefore, the data used in the existing control system 2 can be analyzed more easily than the data analyzed from the existing lower-level network 25 communicating with the network protocol specific to the manufacturer, and the design, operation, and function assignment of the existing control system 2 can be easily examined. Since even a manufacturer unrelated to the design and manufacture of the existing control system 2 can easily perform the investigation, a new control system 1 having high quality can be inexpensively constructed in a short period of time.
Further, only the actual job data required for the arithmetic processing of the new computer 11 can be transmitted to the new control system 1. Therefore, the new computer 11 or the new gateway 12 as the test target device does not need a mechanism for accepting or selecting data, and an environment suitable for the test of the test target device can be provided. In addition, since the actual operation data of the steel production line can be used, the quality of the test data can be improved, and the operation cost for preparing the test data can be reduced. Therefore, the efficiency of the test can be improved, and the newly-installed control system 1 with high quality can be constructed.
Further, since the HUB5 is connected to the existing upper network 24, it is possible to minimize the modification of the existing control system 2 as compared with the parallel operation, and to suppress the influence on the steel production line during the operation.
Moreover, the same data as the existing control system 2 used in the steel production line in operation can be immediately used in the newly installed control system 1 to simulate the function thereof. By comparing the output data of the newly installed control system 1 with the output data of the existing control system 2, the quality of the newly installed control system 1 can be improved and the efficiency of the test can be improved.
Even if there is a setting omission or a setting error in the test data definition table 622, the operator can easily find and correct the error by displaying the transmission/reception data between the already designed computer 21 and the already designed PLC 23.
(hardware configuration example)
The hardware configuration of the test support unit 6 will be described with reference to fig. 4. Fig. 4 is a block diagram showing an example of the hardware configuration of the processing circuit included in the test support unit 6 of fig. 3. Each part of the test assisting unit 6 shown in fig. 3 represents a part of the functions of the test assisting unit 6, and each function is realized by a processing circuit. For example, the processing circuit is a computer including a CPU (Central processing unit) 101, a ROM (Read Only Memory) 102, a RAM (Random access Memory) 103, an input/output interface 104, a system bus 105, an input device 106, a display device 107, and a storage device 108.
The CPU 101 is a processing device that executes various arithmetic processes using programs, data, and the like stored in the ROM 102 and the RAM 103. The ROM 102 is a storage device dedicated for reading out a basic program, an environment file, and the like for causing a computer to realize each function. The RAM 103 is a main storage device that stores programs executed by the CPU 101 and data necessary for executing the programs, and is capable of high-speed reading and writing. The input/output interface 104 mediates connection of various hardware and the system bus 105. The system bus 105 is an information transmission path shared by the CPU 101, the ROM 102, the RAM 103, and the input/output interface 104.
Further, hardware such as an input device 106, a display device 107, and a storage device 108 is connected to the input/output interface 104. The input device 106 is a device that handles an input of an operator, and is, for example, a keyboard or a mouse. The processing of each unit is executed starting from an input from the input device 106. The display device 107 is, for example, a monitor. The storage device 108 is a large-capacity auxiliary storage device that stores programs and data, and is, for example, a hard disk device, a nonvolatile semiconductor memory, or the like. The data storage unit 62 is realized by the RAM 103 and/or the storage device 108.
Embodiment 2.
Next, embodiment 2 of the present invention will be described with reference to fig. 5. In the above-described embodiment 1, a case where data collected by the computer-aided update test apparatus 4 is outputted to the new setting bit network 15 in real time at the time of collection thereof has been described as an example. However, there is a case where it is desired to repeatedly simulate the same situation as the control performed in the existing control system 2 in the past in the newly installed control system 1 regardless of the actual production execution situation in the existing control system 2.
Fig. 5 is a block diagram for explaining the configuration of the computer update test support apparatus 4 according to embodiment 2 of the present invention. The configuration shown in fig. 5 is the same as that shown in fig. 3, except that the setting information 65 is added to the test support unit 6, and the processing of the test data output unit 64 is expanded.
The setting information 65 is information set by the operator, and is information for specifying a time range of data for a test out of the packet data stored in the packet data storage section 621.
The test data output unit 64 repeatedly writes the data content of the packet necessary for the arithmetic processing of the newly installed computer 11 into the storage area corresponding to the address of the shared memory 310 while keeping the relative timing between the collection times of the packets captured by the HUB5, according to the test data definition table 622, for the packet data in the range specified by the setting information 65 among the packet data stored in the packet data storage unit 621.
When the setting information 65 is not set, the test data output unit 64 outputs the data collected by the computer-updated test assisting device 4 to the new installation site network 15 in real time at the timing of collection thereof as described in embodiment 1.
According to the computer update test support device 4 of the present embodiment, the same data as the control performed in the existing control system 2 in the past can be repeatedly output to the new lower-level network 15 at the same timing (in the same time series) regardless of the actual production execution status in the existing control system 2. Therefore, the function confirmation test of the newly installed control system 1 can be performed more efficiently.
Embodiment 3.
Next, embodiment 3 of the present invention will be described with reference to fig. 6. In the above-described embodiment 1, the functions of displaying the collection timing of packets and the data content are described. However, if a function of comparing and displaying product quality data before and after updating by a computer is provided, the function confirmation test becomes more efficient.
Fig. 6 is a block diagram for explaining the configuration of the computer update test support apparatus 4 according to embodiment 3 of the present invention. The configuration shown in fig. 6 is the same as that shown in fig. 5, except that the common memory collection unit 66, the quality data totaling unit 67, and the common memory data storage unit 623 are added to the test support unit 6, and the processing of the data display unit 63 is expanded.
The shared memory collection unit 66 collects data stored in the shared memory 310 of the new bit network 15. The collected data includes product quality data (measured data) such as the plate thickness, the plate width, and the temperature of the rolled material output from the newly installed PLC 13. The common memory data storage section 623 stores the product quality data stored in the common memory 310 of the new set bit network 15 for each control cycle.
The quality data totaling unit 67 compares the product quality data of the existing control system 2 (the thickness, width and temperature of the rolled material output from the existing PLC23) stored in the package data storage unit 621 with the product quality data of the newly installed control system 1 (the thickness, width and temperature of the rolled material output from the newly installed PLC13) stored in the common memory data storage unit 623. When there is a difference exceeding a set value between the compared product quality data, the quality data totaling unit 67 outputs a message that there is an abnormality in the quality of the product together with the value of the compared product quality data as a comparison result. The comparison result is stored in the data storage unit 62.
The data display unit 63 displays the comparison result stored in the data storage unit 62 according to the operation of the operator. The display means includes a screen output and/or a print output.
(Effect)
According to the computer update test support device 4 of the present embodiment, the product quality data of the same product can be compared before and after the update of the computer. Therefore, the newly installed control system 1 can be easily evaluated. If there is a portion where the updated product quality data of the newly installed control system 1 is deteriorated, it is easy to investigate the cause thereof. Therefore, the adjustment period for improving the quality of the updated new control system 1 to be equal to or higher than the quality before the update can be shortened.
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.
Description of the reference symbols
1 newly-arranged control system
2 existing control system
4 computer updating test auxiliary device
5 HUB
6 test support
11 newly designed computer
12 New gateway (New GW)
13 newly-arranged programmable logic controller (newly-arranged PLC)
14 newly-arranged host network
15 newly-established lower network
21 designed computer
22 existing gateway (existing GW)
23 existing programmable logic controller (existing PLC)
24 established host network
25 established lower network
31 to 34 nodes A to D
61 bag collecting part
62 data storage unit
63 data display part
64 test data output unit
65 setting information
66 common memory collection unit
67 quality data totaling unit
101 CPU(Central Processing Unit)
102 ROM(Read Only Memory)
103 RAM(Random Access Memory)
104 input/output interface
105 system bus
106 input device
107 display device
108 storage device
310-340 shared memory
621 packet data storage unit
622 test data definition table
623 shared memory data storage
Claims (3)
1. A computer updating test auxiliary device is connected to both an existing control system and a newly-designed control system for testing a newly-designed computer,
the existing control system is provided with an existing lower network for connecting an existing Programmable Logic Controller (PLC) and an existing gateway, and an existing upper network for transmitting packets between the existing gateway and a designed computer, wherein the existing computer and the existing PLC cooperate to control the steel production line;
the newly-designed control system is provided with a newly-designed lower network and a newly-designed upper network which connects the newly-designed gateway with the newly-designed computer, the newly-designed lower network is provided with a plurality of nodes with shared memories, data is transmitted and received between a newly-designed Programmable Logic Controller (PLC) connected with 1 node and a newly-designed gateway connected with another 1 node through the synchronization of the shared memories among the nodes, and the newly-designed computer and the newly-designed PLC cooperate to control the steel production line;
the disclosed device is characterized by being provided with:
a HUB connected to the existing upper network and having a port mirroring function of capturing packets in actual operation of the steel production line flowing through the existing upper network;
a packet data storage unit for storing packet data including the packet collection time and the data content captured by the HUB;
a data display part displaying each packet data stored in the packet data storage part; and
and a test data output unit which writes the data content of the packet necessary for the arithmetic processing of the new computer into the storage area corresponding to the address of the shared memory while maintaining the relative timing between the collection times of the packets captured by the HUB, according to a test data definition table defining the correspondence between the data content of the packet necessary for the arithmetic processing of the new computer and the address designated for the storage area of the shared memory into which the data content is written.
2. The computer-update-test assistance device of claim 1,
the test data output unit repeatedly writes data contents of a packet necessary for arithmetic processing by the newly installed computer into a storage area corresponding to an address of the shared memory while maintaining the relative timing with respect to the specified range of packet data among the packet data stored in the packet data storage unit in accordance with the test data definition table.
3. The computer-update-test assistance device of claim 1 or 2,
further provided with:
a shared memory data storage unit for storing the product quality data stored in the shared memory of the newly-set bit network; and
and a quality data totaling unit for outputting a comparison result between the product quality data of the existing control system stored in the packet data storage unit and the product quality data of the newly installed control system stored in the common memory data storage unit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2017/025297 WO2019012606A1 (en) | 2017-07-11 | 2017-07-11 | Computer update test assistance device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
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| CN (1) | CN110832411B (en) |
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| JP2021190796A (en) * | 2020-05-28 | 2021-12-13 | 東芝三菱電機産業システム株式会社 | gateway |
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| WO2019012606A1 (en) | 2019-01-17 |
| JP6733820B2 (en) | 2020-08-05 |
| CN110832411B (en) | 2023-08-04 |
| JPWO2019012606A1 (en) | 2019-11-07 |
| TW201908893A (en) | 2019-03-01 |
| TWI629578B (en) | 2018-07-11 |
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