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A gas pipeline network plc malfunction rate testing device and method

A test device and a technology of false trip rate, applied in electrical testing/monitoring, test/monitoring control systems, instruments, etc., can solve problems such as inaccurate test results and no guideline for false trip rate testing, so as to save test costs, The effect of improving work efficiency

Active Publication Date: 2021-12-24
BEIJING MUNICIPAL INST OF LABOUR PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] One of the purposes of the present invention is to develop a device for testing the malfunction rate, which solves the above-mentioned problems of no guiding specification and inaccurate test results for the malfunction rate test mentioned above, realizes automatic testing and report generation, and greatly improves work efficiency

Method used

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  • A gas pipeline network plc malfunction rate testing device and method
  • A gas pipeline network plc malfunction rate testing device and method
  • A gas pipeline network plc malfunction rate testing device and method

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Experimental program
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Embodiment 1

[0045] Such as figure 1 Shown, be the testing principle block diagram schematic diagram of data acquisition and monitoring control system (SCADA) in the gas pipeline network PLC test method of the present invention;

[0046]In the gas pipeline network PLC test method of the present invention, the data acquisition and monitoring control system (SCADA) includes a test device and a tested object, and the test device mainly includes a PXI chassis, a PXI controller, an analog output (AO) board, and a digital output signal (DO) board and test cable; the tested objects include main control unit, analog input (AI) board, digital input (DI) board; wherein, the PXI controller is located in the PXI chassis, and the PXI controller is connected with the The analog output (AO) board and the digital output signal (DO) board are connected; the analog output (AO) board is connected to the analog input (AI) board of the tested object through the test cable, and the digital output The signal (D...

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Abstract

The invention relates to a PLC misoperation rate testing device and method for a gas pipeline network, which belongs to the technical field of industrial gas testing and mainly includes a chassis, a controller, an analog output board, a digital output signal board and a test cable; the controller is located at In the chassis, the controller is connected to the analog output board and the digital output signal board respectively; the analog output board is connected to the analog input board of the tested object through the test cable, and the digital output signal board passes the test The cable is connected with the digital input board of the object under test; the main control unit is connected with the controller in the test device through the Ethernet port. The method of the invention can eliminate the interference of misoperation faults, accurately measure the misoperation rate of the measured object, save testing cost and improve work efficiency.

Description

technical field [0001] The invention relates to a PLC misoperation rate testing device and method for a gas pipeline network, belonging to the technical field of industrial gas testing. Background technique [0002] Most natural gas stations use PLC to directly collect real-time data of the station and control on-site actuators such as valve switches. When PLC malfunctions, it will lead to miscontrol of on-site actuators, resulting in safety, economic losses and other consequences. [0003] Therefore, the error rate of the PLC is a very important indicator, and it needs to be tested to verify whether it meets the design requirements before it can be officially put into operation. [0004] In the industrial field, more attention is paid to the probability of rejection and availability test. For the PLC of the gas pipeline network, there are no special standards and specifications to guide the test of the malfunction rate at this stage. Some suppliers of industrial control s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0256
Inventor 靳江红王妤甜莫昌瑜
Owner BEIJING MUNICIPAL INST OF LABOUR PROTECTION
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