MODBUS-RTU protocol conformance test method
A MODBUS-RTU and testing method technology, applied in the field of MODBUS-RTU protocol conformance testing, can solve the problem of ignoring protocol testing and other problems, and achieve the effect of facilitating discovery, ensuring protocol implementation consistency and interoperability, and comprehensive testing content
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[0059] This test method mainly includes the following aspects:
[0060] 1) Test content
[0061] a) Link layer test, which mainly examines the transmission mode, message frame format, address field, check code and link transmission status, to ensure that the device can give a correct response and can perform normal run;
[0062] b) Function code test, which mainly examines whether the format and transmission process of the function code meet the requirements of the standard, and, when the function code is abnormal, whether the device can respond abnormally;
[0063] c) Data field test, which mainly examines whether the format and data of the data field meet the requirements of the standard;
[0064] d) Application function test, on the basis of the realization of protocol consistency, check whether the application function of the device is correctly realized;
[0065] e) Data correctness test, on the basis of the realization of protocol consistency, check whether the data s...
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