QT-based cross-platform PLC board level tool testing system and testing method thereof
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A test system and test method technology, applied in the field of PLC detection, can solve the problems of single test function, low versatility, low test accuracy, etc.
Active Publication Date: 2016-11-09
中电智能科技有限公司 +1
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This patent also has the problem of single test function of the patented tool...
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Embodiment 1
[0108] Such as figure 1 Shown, specify that the present invention provides a kind of cross-platform PLC board-level tooling test system based on QT, including cross-platform board-level tooling test software based on QT, power supply module, PLC single board module to be tested and auxiliary test module, described The PC installed by the QT-based cross-platform board-level tooling test software is connected to the module to be tested through a serial port line, and communicates with the test program of the lower computer of the module to be tested. The power module is connected to the module to be tested to provide power for the board-level tooling test , the module to be tested includes: a CPU module, a coupler module, a digital input module, a digital output module, an analog input module, and an analog output module, which are connected to the auxiliary test module by a serial line, a network cable, and an analog line. The CPU module is interconnected with the IO system thr...
Embodiment 2
[0110] Such as Figures 2 to 13 As shown, the present invention also provides the test method of the cross-platform PLC board-level tooling test system based on QT, and the test method includes the CPU module detection step:
[0111] Step 1. Connect one end of the tooling cable to the UART_0 interface of the CPU module, and the other end to the host computer. After the test system is connected, open the board-level tooling test software.exe program from the host computer, select the CPU module test item, and inspect the CPU module. , the test items include serial port test, network port test, SDRAM test, FLASH test, LED lamp test, DIP switch test, RTC clock test, power-down protection time estimation, COMX test and MAC_EEPROM test, the serial port test includes 3 Item, the test items are UART_1, USER, OS three channel tests, the network port test includes 2 items, the test items are two channel tests of ETH0 and ETH1;
[0112] Step 2, the inspection method of the three channe...
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Abstract
The invention relates to the technical field of PLC detection, and provides a QT-based cross-platform PLC board level tool testing system, which comprises QT-based cross-platform board level tool testing software, a power supply module, a to-be-tested PLC module and an auxiliary testing module, wherein a PC mounted by the QT-based cross-platform board level tool testing software is connected with the to-be-tested module via a serial port line and communities with a lower computer testing program; the power supply module is connected with the to-be-tested module for providing power for the tool testing; and the to-be-tested module comprises a CPU module, a coupler module, a digital input module, a digital output module, an analog input module, an analog output module, and the to-be-tested module is connected with the auxiliary testing module via the serial port line, a cable and an analog line. When the tool is used for testing different single board modules, the auxiliary testing module is used for providing a unified testing environment, the interface connectivity or function testing precision is high, automatic testing is realized, the testing result is accurate, the workload is reduced, and the working efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of PLC detection, in particular to a QT-based cross-platform PLC board-level tooling test system and a test method thereof. Background technique [0002] PLC board-level tooling test mainly tests the hardware connectivity and basic functions of PLC single-board modules, and provides software support and verification for simple hardware design and welding problem finding. PLC modules include: CPU module, coupler module, AI module, AO module, DI module and DO module, etc. The above-mentioned modules all need to measure the communication interface (serial port test, network port test) and basic function test. In particular, the DI and DO modules also need to measure the channel function, and the AI and AO modules need to measure the AD / DA conversion function. General board-level tooling test products are not accurate enough for single-board function testing, and the test environment for each board is differe...
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