TWI629578B - Computer updating test assisting device - Google Patents

Abstract

The computer update test support device (4) of the present invention is connected to both the existing upper network (24) and the newly installed lower network (15). The hub (5) has a port mapping synchronization function that captures packets flowing in the actual operation of the steel production line of the existing upper network (24). The packet data accumulation unit (621) accumulates packet data composed of the collection time and data content of the packets captured by the hub (5). The test data output unit (64) complies with the test data definition table (622) and maintains the relative timing between the collection times of the packets captured by the hub (5), and calculates the calculations of the new computer (11). The data content of the packet necessary for processing is written into a memory area corresponding to the address of the shared memory (310).

Description

Computer update test support device

The present invention relates to a computer update test support device, and particularly to a computer update test support device suitable for a function confirmation test when an existing control system of a steel production line is updated to a new control system.

It is known that a high-level computer and a lower-level programmable logic controller (hereinafter referred to as PLC) are connected to communicate with each other, and coordinately control the operation of each machine and equipment constituting the steel production line. With the aging of the control system, when the existing control system is updated to a new control system, a function confirmation test of the new control system must be performed.

As one of the test methods, a parallel run is known (Japanese Patent Application Laid-Open No. 2017-41000). According to the parallel operation, the same signal is input to both the existing control device and the newly installed control device of the control plant to perform parallel operation, thereby enabling the update verification. However, in order to input the same data to the two control devices, it is not easy to change the existing control system by incorporating the equipment for parallel operation in operation, which may cause adverse effects on the operating status of the plant. In addition, there are restrictions that the specifications of the signals input to the newly installed control device must be the same as those of the aging existing control device.

(Prior technical literature) (Patent Literature)

Patent Document 1: JP 2017-41000

However, as one of the function confirmation tests when updating an existing control system to a new control system, it is necessary to confirm the operation of a host computer (new computer) of the new control system. In order to conduct a test of a new computer, a computer may be prepared to update a test support device. In the conventional computer update test support device, manual input is used in advance to create test input data necessary for calculation processing of a new computer. However, there is a problem that the operation cost of preparing the input data for the test is large, and the data produced by manual input is different from the actual operation data.

Furthermore, in order to test the newly installed computer, it may also be considered to use a gateway to connect the lower control network (the existing lower network) connected to the lower PLC (the existing PLC) of the existing control system and the newly installed control system. The lower-level control network (newly-set lower-level network) to which the lower-level PLC (the existing PLC) is connected. According to this method, all the input and output signals of the existing lower-level network will be transferred to the newly established lower-level network, so the actual operating data output by the existing PLC in operation can be used for the test of the newly-built computer. However, in the newly installed computer side which is a test object, in order to perform the function confirmation test, there must be a structure mechanism for selecting and selecting the necessary data, which is not an appropriate environment for the test of the newly installed computer.

In addition, most of the existing lower-level networks consist of a manufacturer-specific high-speed control data network. Therefore, the manufacturer of the existing control system at that time (usually 10 to 15 years ago) did not design it. It was difficult to analyze the transmission and reception data of the existing lower network and obtain the necessary information to update the new control system. . Therefore, there are problems such as manufacturers who have to rely on the design of an existing control system for the renewal work, cannot reduce the cost of the renewal work, and there are many restrictions on introducing the latest technology at the time of the renewal work.

The present invention has been completed to solve the above-mentioned problems, and an object thereof is to provide a computer update test support device which can easily obtain information about the design and operation of an existing control system and can use actual operation data And the function confirmation test of the new computer of the new control system is efficiently achieved.

To achieve the above-mentioned object, the computer update test support device of the present invention is configured in the following manner. The computer update test support device is a device for testing a newly installed computer by connecting both the existing control system and the newly installed control system.

The existing control system has: an existing lower-level network that connects an existing programmable logic controller (hereinafter referred to as an existing PLC) with an existing gateway; and an existing upper-level network that transmits packets between the existing gateway and the existing computer. A high-level network is set up, and a computer and a PLC are set up to control the steel production line.

The new control system has: A plurality of nodes having a shared memory and through the synchronization of the shared memory between the plurality of nodes, a new programmable logic controller (hereinafter referred to as a new PLC) connected to one node is connected to another one Data is transmitted and received between the newly installed gateways at each node; and a newly installed higher-level network, a newly installed upper-level network connecting the newly-installed gateway and the newly-built computer, and the newly-built computer and the newly-built PLC control the steel production line.

The computer update test support device includes a hub (HUB), a packet data accumulation unit, a data display unit, and a test data output unit.

The hub is connected to the existing upper network, and has a port mirroring function that captures packets flowing in the actual operation of the steel production line of the existing upper network. The packet includes an Internet Protocol (IP) packet.

The packet data accumulation unit accumulates packet data including the collection time and data content of the packets captured by the hub. The data content contains data values. It can also contain data items.

The data display unit displays each packet data accumulated by the packet data accumulation unit.

The test data output section defines a test data definition table in accordance with the correspondence between the data content of the packet necessary for the calculation processing of the newly set computer and the address of the memory area of the shared memory designated to write the data content. In the state of the relative timing between the captured time of each packet, the data content of the packet necessary for the calculation processing of the new computer is written into the memory area corresponding to the address of the shared memory area.

The computer update test support device according to this embodiment can collect packets from an established upper-level network that communicates using a general network protocol for transmitting packets, and accumulates and displays the collection time and data content of each packet. Therefore, compared with the case where the analysis data of the existing lower-level network is communicated by the manufacturer-specific network protocol, the analysis of the data used in the existing control system is easier, and the design of the existing control system can be easily investigated Action and function sharing. Since manufacturers who are not involved in the design and manufacture of existing control systems can easily investigate, it is possible to construct high-quality new control systems at a lower price in a short period of time.

Furthermore, it is possible to transmit only the actual operation data necessary for the arithmetic processing of the newly installed computer to the newly installed control system side. Therefore, there is no need to choose the structure mechanism of the selection data on the side of the newly installed computer, which can provide an appropriate environment for the test of the newly installed computer. 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 production cost of the test data can be reduced. Therefore, it is possible to construct a new control system that improves test efficiency and has high quality.

Furthermore, since the hub is connected to an existing host network, compared with parallel operation, modifications to the existing control system can be minimized, and the influence on the operation of the steel production line can be suppressed.

The computer update test support device according to this embodiment can easily obtain the design and operation of the existing control system, and can enable Use actual operation data to efficiently achieve the function confirmation test of the new computer of the new control system.

1‧‧‧ new control system

2‧‧‧Existing control system

4‧‧‧ Computer update test support device

5‧‧‧ HUB

6‧‧‧Test Support Department

11‧‧‧ New computer

12‧‧‧New gateway (new GW)

13‧‧‧ New programmable logic controller (new PLC)

14‧‧‧ Newly established higher-level network

15‧‧‧ New lower network

21‧‧‧Existing computer

22‧‧‧Existing Gateway (Existing GW)

23‧‧‧Existing programmable logic controller (existing PLC)

24‧‧‧existing host network

25‧‧‧ existing lower network

31 to 34‧‧‧Node A to Node D

61‧‧‧packet collection department

62‧‧‧Data Preservation Department

63‧‧‧Data Display Department

64‧‧‧Test data output department

65‧‧‧ Setting Information

66‧‧‧ Shared Memory Collection Department

67‧‧‧Quality data total department

101‧‧‧ Central Processing Unit (CPU: Central Processing Unit)

102‧‧‧Read Only Memory (ROM: Read Only Memory)

103‧‧‧ Random Access Memory (RAM: Random Access Memory)

104‧‧‧I / O interface

105‧‧‧System Bus

106‧‧‧ input device

107‧‧‧ display device

108‧‧‧Memory

310 to 340‧‧‧shared memory

621‧‧‧packet data accumulation department

622‧‧‧Test data definition table

623‧‧‧Shared memory data accumulation department

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-up lower network.

Fig. 3 is a block diagram for explaining the structure of a computer update test support device according to the first embodiment of the present invention.

FIG. 4 is a block diagram showing an example of a hardware configuration of a processing circuit included in the test support unit.

Fig. 5 is a block diagram for explaining the structure of a computer update test support device according to a second embodiment of the present invention.

Fig. 6 is a block diagram for explaining the structure of a computer update test support device according to a third embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, the common elements in the drawings are given the same reference numerals, and redundant descriptions are omitted.

Embodiment 1

FIG. 1 is a diagram for explaining a configuration of a control system for controlling a steel production line (steel plant). The new control system 1 is depicted in Figure 1. A control system 2 and a computer update test support device 4 are provided.

The control object of the new control system 1 is the same steel production line as the existing control system 2. The computer update test support device 4 can provide actual operation data of the existing control system 2 to the test target device of the new control system 1 in order to support the function confirmation test necessary when the existing control system 2 is updated to the new control system 1. The test target device was a new computer 11 and a new gateway (new 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 PLC 13), a newly installed upper network 14, and a newly installed lower network 15. The new computer 11 and the new gateway 12 are connected by a new upper network 14 of a general network protocol (TCP / IP or UDP / IP) for transmitting packets. The newly installed gateway 12 and the newly installed PLC 13 are connected by a newly installed lower network 15 having a protocol different from that of the newly installed upper network 14. Newly established 15-series high-speed control data network. The transmission in the newly set-up upper network 14 is a non-periodic data transmission, and an arbitrary data is transmitted at an arbitrary timing.

The control system uses a plurality of PLCs to share the control range of the steel production line. Although the plurality of newly installed PLCs in FIG. 1 include the newly installed PLCs 131 and 132, they may also include three or more newly installed PLCs. In the following description, when it is not necessary to distinguish between the newly installed PLCs 131 and 132, only the newly installed PLC 13 is described.

Newly installed lower network 15 series to achieve high reliability and real-time Network for factory control. Specifically, the newly-established lower-level network 15 can ensure the simultaneity of control data by scanning transmission (periodic broadcast transmission) using a shared memory method.

The newly set-up lower network 15 has a plurality of nodes (node A31 to node D34). Node A31 is connected to the computer update test support device 4, node B32 is connected to the new gateway 12, node C33 is connected to the new PLC131, and node D34 is connected to the new PLC132. The number of nodes is not limited to the above-mentioned number of nodes.

FIG. 2 is a diagram for explaining scan transmission in the newly set-up lower network 15. As shown in FIG. 2, the plurality of nodes A31 to D34 have shared memories 310 to 340 having the same configuration, respectively. In each shared memory system, a memory area for writing output data of the computer update test support device 4, a memory area for writing setting information of the newly set computer 11, and output data of newly setting PLC 131 are allocated in a non-repeating manner It contains the memory area of the output data of the drive device or sensor) and the memory area of the output data (including the output data of the drive device or sensor) of the newly set PLC 132.

Each node has a broadcast transmission function of periodically transmitting data on the shared memory managed by its own node to all other nodes. For example, the node A31 periodically broadcasts and transmits the data in the memory area on the shared memory 310 to which the output data of the computer update test support device 4 is written to all other nodes to synchronize the data in each shared memory. The newly set-up lower network 15 can perform scan transmission at a period of several msec.

Return to Figure 1 to continue the explanation. The new computer 11 is a processing computer that manages the processes in the steel production line collectively. For example, a physical model that simulates the rolling phenomenon is used to perform setting calculations for factory control. The result of the setting calculation (setting information) is transmitted to the newly set PLC 13 through the newly set gateway 12 which switches the protocol between the newly set upper network 14 and the newly set lower network 15 at the necessary timing.

The newly-installed PLC 13 uses the setting information of the newly-installed computer 11 to control various equipment (a driving device or a sensor (not shown)) constituting the steel production line. The driving device is a device that drives a roller of a rolling mill, a water injection device of a run out table, a coiler, and the like. The sensor is a device that detects the thickness, width, temperature, and rotation speed of the motor of the rolled material. The data output from the newly installed PLC 13 is transferred to the newly installed higher-level network 14 in the newly installed gateway 12 and transmitted to the newly installed computer 11. In this way, the new computer 11 and the new PLC 13 cooperate to control the steel production line.

(Existing control system)

The existing control system 2 is an old control system, and has, for example, the same type of configuration as the newly installed control system 1.

The existing control system 2 includes an existing computer 21, an existing gateway 22 (an existing GW 22), a plurality of existing programmable logic controllers 23 (an existing PLC 23), an existing upper network 24, and an existing lower network 25. The existing computer 21 and the existing gateway 22 are connected by the established upper network 24 of a general network protocol (TCP / IP or UDP / IP) for transmitting packets. The existing gateway 22 and the existing PLC 23 are connected by an existing lower network 25 having a protocol different from that of the existing upper network 24. The transmission in the upper network 24 is a non-periodic data transmission, and any data is transmitted at an arbitrary timing.

In FIG. 1, the plurality of existing PLCs 23 include the existing PLCs 231 and 232, but may include three or more existing PLCs. In the following description, if there is no need to distinguish the existing PLCs 231 and 232, only the existing PLC 23 will be described.

The existing lower-level network 25 is a manufacturer-specific high-speed control data network designed as an existing control system, and has its own network protocol. Therefore, it is not easy for a person other than the manufacturer who designs the existing control system to analyze the data.

The existing computer 21 is a processing computer that manages the manufacturing process of the iron and steel production line in the same way as the newly installed computer 11. For example, a physical model that simulates the rolling phenomenon is used to perform setting calculations for factory control. The result of the setting calculation (setting information) is transmitted to the existing PLC 23 through the existing gateway 22 that switches the protocol between the existing upper network 24 and the existing lower network 25 at the necessary timing.

The existing PLC 23 uses the setting information of the existing computer 21 to control various equipment (a driving device or a sensor (not shown)) constituting the steel production line. The data output from the existing PLC 23 is converted to the transmission method of the existing upper network 24 by the existing gateway 22 and transmitted to the existing computer 21. In this way, the existing computer 21 and the existing PLC 23 coordinately control the steel production line.

(Computer update test support device)

Next, the computer update test support device 4 will be described. Fig. 3 is a block diagram for explaining the structure 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 hub 5 and a test support unit 6.

The hub 5 is connected to an existing host network 24 between the existing computer 21 and the existing gateway 22. The hub 5 has a port mapping synchronization function that captures packets flowing through the existing upper network 24. Specifically, the hub 5 is a switching hub having a gain hub (Repeater HUB) or a mirror port (mirror port). These components are generally commercially available and can be obtained easily and at a lower price. In addition, the hub 5 can be easily installed by changing the LAN cable of the existing upper network 24. The hub 5 also transmits the packet in actual operation of the steel production line transmitted between the existing PLC 23 and the existing computer 21 to the test support unit 6.

The test support unit 6 includes a packet collection unit 61, a data storage unit 62, a data display unit 63, and a test data output unit 64.

The packet collection unit 61 collects each packet captured by the hub 5. The test support unit 6 stores a file that defines a communication data format used in the existing upper network 24 and identifies the content of the received data according to its definition.

The data storage unit 62 includes a packet data accumulation unit 621 and a test data definition table 622. The data storage unit 62 is realized by a read-only memory (ROM) 102 or a storage 108 in FIG. 4 to be described later.

The packet data accumulation unit 621 accumulates packet data composed of the collection time (collection timing) and data content of the packets captured by the hub 5. The data content includes data values, and may also include data items.

The test data definition table 622 defines the correspondence between the data content of the packet necessary for the arithmetic processing of the new computer 11 and the address of the memory area of the shared memory that specifies the data content to be written.

The data display unit 63 displays each packet data that has been accumulated in the data storage unit 62 in response to an operator's operation, that is, the packet collection time and its data content. The display means includes screen output and / or print output.

The test data output unit 64 complies with the test data definition table 622, and maintains the relative timing between the collection times of the packets captured by the hub 5. The packet data necessary for the arithmetic processing of the new computer 11 is maintained. The content is written into a storage area corresponding to the address of the shared memory 310. For example, the data defined by the test data definition table for each packet captured by the hub 5 is converted into the communication data format of the new lower-level network 15 and output in real time, thereby enabling implementation to ensure that there is a basis for the actual operation data. Coming soon.

(effect)

According to the computer update test support device 4 of the present embodiment, it is possible to communicate from an established higher-level network that communicates using a general network protocol for transmitting packets. 24 Collect packets, and accumulate and display the collection time and data content of each packet. Therefore, compared with the case where the data is analyzed from the established lower network 25 which communicates with the manufacturer-specific network protocol, the analysis of the data used in the existing control system 2 is easier, and the Design, action, and function sharing. Even manufacturers that have nothing to do with the design and production of the existing control system 2 can easily conduct investigations. Therefore, it is possible to construct a high-quality new control system at a low price in a short period of time.

Furthermore, only the actual operation data necessary for the arithmetic processing of the newly installed computer 11 can be transmitted to the newly installed control system 1 side. Therefore, there is no need to choose a structure mechanism for selecting data on the newly installed computer side 11 or the newly installed gateway 12 belonging to the test target device, and it is possible to provide an appropriate environment for the test of the test target device. In addition, since the actual operating data of the steel production line can be used, the quality of the test data can be improved and the production cost of preparing the test data can be reduced. Therefore, it is possible to construct a new control system 1 which improves the test efficiency and has high quality.

Furthermore, since the system hub 5 is connected to the existing upper network 24, compared with parallel operation, changes to the existing control system 2 can be minimized, and the influence on the steel production line in operation can be suppressed.

In addition, the same data as the existing control system 2 used in the steel production line for operation can be used in real time and the function of the new control system 1 can be simulated. By comparing the output data of the newly installed control system 1 with the output data of the existing control system 2, the new The quality of the control system 1 is set and the efficiency of the test is sought.

In addition, even if the test data definition table 622 has a missing setting or a wrong setting, the operator can easily find or correct errors by displaying the sending and receiving data between the existing computer 21 and the existing 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 a hardware configuration of a processing circuit included in the test support section 6 of FIG. 3. Each part of the test support part 6 shown in FIG. 3 shows a part of the function which the test support part 6 has, and each function is implement | achieved by a processing circuit. For example, the processing circuit is a computer with a central processing unit (CPU: Central Processing Unit) 101, a read-only memory (ROM: Read Only Memory) 102, a random access memory (RAM: Random Access Memory) 103, and input / output. The interface 104, the system bus 105, the input device 106, the display device 107, and the storage 108.

The central processing unit 101 is a processing device that executes various types of arithmetic processing using programs or data stored in the read-only memory 102 or the random access memory 103. The read-only memory 102 is a read-only memory device that stores basic programs or environmental files used to enable a computer to implement various functions. The random access memory 103 is a main memory device that stores programs executed by the central processing unit 101 and data necessary for execution of each program, and can perform high-speed reading and writing. I / O interface 104 series A device that connects various types of hardware to the system bus 105. The system bus 105 is an information transmission path shared by the central processing unit 101, the read-only memory 102, the random access memory 103, and the input / output interface 104.

The input / output interface 104 is connected to hardware such as an input device 106, a display device 107, and a memory 108. The input device 106 is a device that processes input made by an operator, such as a keyboard or a mouse. The processing of each section described above is executed with the input from the input device 106 as a starting point. The display device 107 is, for example, a display. The memory 108 is a large-capacity auxiliary memory device that stores programs or data, such as a hard disk device or a non-volatile semiconductor memory. The data storage unit 62 is implemented by the random access memory 103 and / or the storage 108.

Embodiment 2

Next, a second embodiment of the present invention will be described with reference to FIG. 5. The first embodiment described above describes as an example a case where the data collected by the computer update test support device 4 is output to the newly-installed lower-level network 15 in real time with the collection timing. 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 with the new control system 1 regardless of the actual production and implementation status of the existing control system 2.

Fig. 5 is a block diagram for explaining the configuration of the computer update test support device 4 according to the second embodiment of the present invention. The configuration shown in FIG. 5 is the same as that in FIG. 3 except that the setting support 65 is added to the test support unit 6 and the test data output unit 64 is expanded.

The setting information 65 is information set by an operator, and is information stored in the packet data of the packet data accumulating unit 621 to specify a time range of data used for the test.

The test data output unit 64 maintains the collection of each packet captured by the hub 5 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 accumulation unit 621. In a state of relative timing between times, the data content of the packet necessary for the arithmetic processing of the newly set computer 11 is repeatedly written into the memory area corresponding to the address of the shared memory 310.

In addition, when the setting information 65 is not set, the test data output unit 64 outputs the data collected by the computer update test support device 4 to the newly set-up lower-level network 15 in real time in the manner as described in the first embodiment.

According to the computer update test support device 4 according to this embodiment, it is possible to output to the newly installed lower network 15 in the same sequence (same series) repeatedly and in the past regardless of the actual production implementation status of the existing control system 2. The control system 2 implements the same control information. Therefore, the function confirmation test of the newly installed control system 1 can be performed more efficiently.

Embodiment 3

Next, a third embodiment of the present invention will be described with reference to FIG. 6. The first embodiment described above has described the function of displaying the collection timing and data content of packets. But if it has more comparison and display computer The function of product quality data before and after the update makes the function confirmation test more efficient.

Fig. 6 is a block diagram for explaining the structure of the computer update test support device 4 according to the third embodiment of the present invention. In the configuration shown in FIG. 6, in addition to the addition of a shared memory collection unit 66, a quality data total unit 67, a shared memory data accumulation unit 623, and an expanded data display unit 63 to the additional test support unit 6, Are the same as in Figure 5.

The shared memory collection unit 66 collects data stored in the shared memory 310 stored in the newly established lower network 15. The collected data includes product quality data (actual data) such as sheet thickness, sheet width, and temperature of the rolled material output from the newly set PLC13. The shared memory data storage unit 623 accumulates product quality data stored in the shared memory 310 of the newly set-up lower network 15 every control cycle.

The quality data totaling unit 67 stores the product quality data (the thickness, width, and temperature of the rolled material being rolled out of the PLC 23 output) of the existing control system 2 stored in the packet data storage unit 621 and the common memory data storage unit 623. The product quality data of the newly set control system 1 (the thickness, width and temperature of the rolled material output by the newly set PLC13) are compared. When the quality data totaling unit 67 exceeds the set value difference between the compared product quality data, the subject of the abnormal quality of the product and the value of the compared product quality data are used as the comparison result. Output. The comparison result is stored in the data storage unit 62.

The data display section 63 displays the data in response to the operator's operation. The comparison result in the data storage unit 62 is stored. Display means include screen output and / or print output.

(effect)

According to the computer update test support device 4 of this embodiment, the product quality data of the same product can be compared before and after the computer update. Therefore, evaluation of the newly installed control system 1 can be easily performed. If the updated product quality data of the new control system 1 is inferior, it is easy to investigate the cause. Therefore, it is possible to shorten the adjustment time for improving the quality of the newly installed control system 1 to the quality before the update.

As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, Various changes can be implemented in the range which does not deviate from the meaning of this invention.

Claims (3)

A computer update test support device is used to test a newly installed computer by connecting to both the existing control system and the newly installed control system. The aforementioned existing control system has: an existing lower-level network and an existing programmable logic controller (hereinafter referred to as the existing PLC) and the existing gateway to connect; and the existing upper-level network to transmit packets between the existing gateway and the existing computer; the existing computer and the existing PLC cooperate to control the steel production line; the new control system has: A new lower-level network has a plurality of nodes with shared memory, and through the synchronization of the shared memory between the plurality of nodes, a new programmable logic controller (hereinafter referred to as a new PLC) connected to one node Transmit and receive data to and from the newly installed gateway connected to another node; and a new higher-level network to connect the newly installed gateway to the previously installed computer; the previously established computer and the newly established PLC cooperate to control the steel production line; The computer update test support device includes a hub (HUB) connected to the aforementioned A higher-level network is provided, which has a port mapping synchronization function that captures the packets flowing in the actual operation of the aforementioned steel production line of the existing upper-level network; the packet data accumulation unit is a collection that includes the collection of the packets captured by the aforementioned hub Packet data at the time and data content; the data display unit displays each packet data accumulated by the aforementioned packet data accumulation unit; and the test data output unit, which defines the data content of the packet and The test data definition table that specifies the correspondence between the addresses of the memory areas of the shared memory to be written into the data content, while maintaining the relative timing between the collection times of the packets captured by the hub, The data content of the packet necessary for the arithmetic processing of the new computer is written into a memory area corresponding to the address of the shared memory. The computer update test support device according to item 1 of the scope of the patent application, wherein the test data output unit is based on the packet data in the range specified in the packet data stored in the packet data accumulation unit according to the test data. In the definition table, the data content of the packet necessary for the arithmetic processing of the newly-set computer is repeatedly written into the memory area corresponding to the address of the shared memory while maintaining the aforementioned relative timing. The computer update test support device described in item 1 or 2 of the scope of the patent application, further includes: a shared memory data accumulation section, which accumulates product quality data stored in the shared memory of the newly established lower-level network; The totalizing unit outputs the comparison result of the product quality data of the existing control system stored in the packet data storage unit and the product quality data of the new control system stored in the shared memory data storage unit.