QT-based cross platform PLC product tool test system and test method thereof

A test system and test method technology, applied in the field of PLC detection, can solve problems such as heavy workload, inaccurate test results, and low test accuracy, and achieve the effects of reducing workload, automatically testing test results, and overcoming bad effects

Active Publication Date: 2016-03-16
中电智能科技有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The patent also has the problem that the patented tooling test product can only test hardware defects, and t

Method used

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  • QT-based cross platform PLC product tool test system and test method thereof
  • QT-based cross platform PLC product tool test system and test method thereof
  • QT-based cross platform PLC product tool test system and test method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] like figure 1 Shown in detail, the present invention provides a kind of QT-based cross-platform PLC product tooling test system, including power module, CPU module, first bus coupler module, first DO module, DI module, interconnected in order on the guide rail, AO module, occupancy module, AI module, first bus end module, second bus coupler module, second DO module and second bus end module, the EH0 of the CPU module is connected with the host computer to realize data transmission through ETH0 The protocol is based on EtherCAT, the host computer is connected to the AI / AO automatic test module, the AI / AO automatic test module is connected to the AI ​​module, and the first bus end module is connected to the second bus coupler module through a tooling twisted pair , the A end of the first DO module is connected to the B end of the DI module through a tooling cable, the first DO module, DI module, AO module and AI module are respectively provided with field IO terminal inte...

Embodiment 2

[0066] like Figures 2 to 13 Shown, the present invention also provides the test method of the cross-platform PLC product tooling test system based on QT, and described test method comprises CPU module detection step:

[0067] Step 1. Connect one end of the tooling cable to the CPU module DB9 interface, and the other end to the host computer. After the test system is connected, check the serial port on the CPU module, and open the .exe program of the PLC test tooling system from the host computer to select CPU module test item, the CPU module is checked, and the test item includes a serial port test, and the serial port test includes 4 test items for user RS232, DSU, OS_DEBUG, Comx four channel tests;

[0068] The inspection method of step 2, described four channel tests comprises:

[0069] 1) DSU: Use the tooling test system to connect to the target board to judge whether the DSU is working normally;

[0070] 2) OS_DEBUG: The user program download port is in the RS operatin...

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Abstract

The invention relates to the technical field of PLC detection, and especially relates to a QT-based cross platform PLC product tool test system and a test method thereof. The QT-based cross platform PLC product tool test system provided by the invention comprises a power supply module with interconnected guide rails, a CPU module, an DI module, an AO module, an occupation module, an AI module, two bus coupler modules, two bus tail-end modules and two DO modules, wherein the EH0 of the CPU module is connected with a host computer so that data is transmitted through an ETH0 transmission protocol on the basis of EtherCAT, the host computer is connected with an AI/AO automatic test module, the AI/AO automatic test module is connected with the AI module, the bus tail-end modules are connected with the bus coupler modules, A ends of the DO modules are connected with the B end of the DI module, the first DO module, the DI module, the AO module and the AI module are each provided with an onsite IO terminal interface, and the CPU module reserves ETH1 and realizes interconnection with an IO system through an X0 master station port. The test precision is high, automatic testing is realized, and the rest result is accurate.

Description

technical field [0001] The invention relates to the technical field of PLC detection, in particular to a QT-based cross-platform PLC product tooling test system and a test method thereof. Background technique [0002] In the prior art, the testing of PLC products is to test whether the PLC products have defects in hardware or software. Small PLC products are divided into CPU unit and expansion unit. The CPU unit has rich functions, and there are many functions to be measured. Generally, it is necessary to measure the switch input and output of the main body, analog input and output, communication interfaces (including RS485, RS232, CAN), SRAM power-down data retention function test, and RTC clock accuracy test. And EPROM read and write test and the power supply of the expansion bus; the expansion unit generally only measures the corresponding function and the expansion bus interface. General tooling test products can only test for defects in hardware, and the accuracy of s...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0256G05B2219/24048
Inventor 赵德政郭肖旺刘金封成玉
Owner 中电智能科技有限公司
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