Testing device and testing method for input and output module function of control system

A control system, input and output technology, applied in the field of control system input and output module function test devices, can solve the problems of large workload, high investment cost, inability to guarantee test accuracy and coverage, etc., to reduce labor intensity, reduce Invest in and improve the effectiveness of test automation

Pending Publication Date: 2019-02-19
NANJING GUODIAN NANZI WEIMEIDE AUTOMATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the tests of the input and output modules of the control system are done manually, the workload is heavy and the accuracy and coverage of the tests cannot be guaranteed.
There are also some automatic test systems, but the investment costs are high

Method used

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  • Testing device and testing method for input and output module function of control system
  • Testing device and testing method for input and output module function of control system
  • Testing device and testing method for input and output module function of control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] Embodiment: The analog input, analog output, switch input and switch output modules of a certain control system are tested simultaneously.

[0028] Such as figure 1 As shown, the present invention provides a control system input and output module function test system, including a control cabinet, a network switch, a high-precision multimeter, a channel switcher and a monitoring computer, and the control cabinet includes a power supply module V1, a controller module K1 , the module to be tested T1, the reference module B1 and the communication module M1, the power supply module provides DC power for all modules such as the controller module; the controller module collects the input module signal and outputs the control command to The output module also controls the special communication module and communicates with the monitoring computer; the modules to be tested include analog input module, analog output module, switch input module and switch output module; the referen...

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PUM

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Abstract

The invention discloses a testing device for the input and output module function of a control system. The system comprises a control cabinet, a network switcher, a high-precision universal meter, a channel switcher, and a monitoring computer, the control cabinet is in two-way communication connection with the network switcher, the network switcher is in two-way communication connection with the monitoring computer, the output end of the control cabinet is in communication connection with the input end of the channel switcher, and the output end of the control cabinet is in communication connection with the input end of the channel switcher, the output end of the channel switcher is in communication connection with the input end of the high-precision universal meter, the control cabinet isin two-way communication connection with the high-precision universal meter; the network switcher is used for the communication connection between the control cabinet and the monitoring computer, andthe high-precision universal meter is used for measuring output signals in the control cabinet and in communication connection with the control cabinet. The invention further provides a testing method for input and output module function of control system, and solving defects of existing a testing system and method for the input and output module function.

Description

technical field [0001] The invention relates to a control system input and output module function test device and a test method, belonging to the technical field of control system on-line test. Background technique [0002] Automatic control systems are widely used in various fields of production and life, and their safety and reliability directly affect the safety of facilities and equipment and people's living standards. The input and output module is the most used component in the control system. It is the connection point between the controller and the field device. It collects device data and outputs control instructions, and directly controls the field device. It plays a very important role. The quality of the module ultimately requires Guaranteed by functional testing. [0003] At present, most of the tests of the input and output modules of the control system are done manually, which has a large workload and cannot guarantee the accuracy and coverage of the tests. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02H04L29/08
CPCH04L67/025H04L67/125G05B23/0221
Inventor 吴科朱能飞乐凌志马伟东张明惠
Owner NANJING GUODIAN NANZI WEIMEIDE AUTOMATION CO LTD
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