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Implementation method of multi-PLC parallel test

An implementation method and technology of test cases, applied in the field of automation, can solve problems such as single function and difficulty in multi-PLC joint testing, and achieve the effect of improving testing efficiency and testing ability, and realizing online modification and debugging

Pending Publication Date: 2022-07-05
国家工业信息安全发展研究中心
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  • Description
  • Claims
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Problems solved by technology

[0004] Aiming at the above problems, the present invention provides a method for realizing multi-PLC parallel testing, which is used to solve the technical problems that the existing PLC testing system has a single function and it is difficult to carry out multi-PLC joint testing

Method used

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  • Implementation method of multi-PLC parallel test

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Embodiment Construction

[0021] The specific implementation method of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] The present invention is a method for realizing parallel testing of multiple PLCs. The multiple PLCs are connected with a remote control gateway, and a remote engineer station is used to construct a PLC test case, and the PLC and the test to be run are completed on the test console. Use case selection to achieve test control under multi-PLC parallel.

[0023] like figure 1 shown, the specific steps are as follows:

[0024] Step 1. Build a test platform consisting of test console, IO manager, test PLC group, PLC remote control gateway, remote engineer station and serial port switcher;

[0025] like figure 2 As shown in the figure, the IO manager is connected to the test console through the network, and is connected to the test PLC group through hard wiring; the test PLC group is connected to the PLC remote control gateway...

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Abstract

The invention discloses an implementation method for parallel testing of multiple PLCs, and belongs to the field of automation. The method comprises the steps that firstly, a test platform composed of a test console, an IO manager and the like is built, and an engineer compiles a test case, sets operation parameters and sends the operation parameters to a PLC remote control gateway; the test console selects n PLC numbers and m test case numbers which need to be started, inputs serial port communication channel parameters, and then sends the serial port communication channel parameters to the IO manager and the serial port switcher; the IO manager starts the corresponding PLCs and sends the m test case numbers to the corresponding n PLCs; each PLC calls a corresponding test case from the PLC remote control gateway for operation, and outputs a result; meanwhile, the operation condition of the PLC is fed back to the IO manager and is transmitted to the test console; the serial port switcher is used for respectively configuring serial port channels for the n PLCs to realize communication between each PLC and the tested case; and finally, the test console carries out real-time monitoring and parameter modification on each PLC. According to the invention, the testing efficiency and the testing capability under the condition that multiple PLCs are parallel are effectively improved.

Description

technical field [0001] The invention belongs to the field of automation, and in particular relates to a method for realizing multi-PLC parallel testing. Background technique [0002] The programmable controller was originally produced to replace the control of the relay contactor. With the development of science and technology, this technology has been developed from a single logic control to a network control between PLC and PLC, and the current relationship between PLC and computer. It is widely used in various industries such as steel, petroleum, chemical industry, electric power, building materials, machinery manufacturing, automobiles, textiles, transportation, aerospace, environmental protection and cultural entertainment, ranging from household equipment to aerospace equipment. There are PLC applications. Therefore, the production test efficiency and production cost of PLC products have also been highly valued by the majority of manufacturers. [0003] Today's PLC t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/36
CPCG06F11/3684G06F11/3688Y02P90/02
Inventor 栾燕张娟娟段翔宇刘众博陶炜
Owner 国家工业信息安全发展研究中心
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