Debugging method and debugging system of PLC configuration program

Abstract

The present application discloses a debugging method and a debugging system for a configuration program of a PLC. The debugging device edits the target code, adds debugging information to each code line of the target code, compiles the edited target code, and generates a configuration program. ;In debug mode, the PLC calls the first function before running any command line in the configuration program, and the first function determines whether the current command line is a valid stop line based on breakpoint information and / or single-step debugging information, if If the current command line is a valid stop line, the second function is called, and the second function controls the task of running the configuration program to enter the sleep state, so as to stop running the configuration program, and run the current command line until the continue operation command is received. Based on the technical solution disclosed in the present application, the configuration program can be debugged online, and by setting breakpoints and single-step debugging, the tester can monitor the details of the debugging.

Description

technical field [0001] The application belongs to the technical field of software debugging, and in particular relates to a debugging method and a debugging system of a PLC configuration program. Background technique [0002] With the increasing complexity of applications in the industrial control industry, the programming volume and complexity of configuration programs (i.e. IEC programs) in PLCs continue to increase, and it is necessary to verify whether the configuration programs are written correctly, whether the operation is reliable and stable, and whether they can achieve The expected demand can no longer be met by relying only on users to conduct routine program checks. [0003] Therefore, how to provide an online debugging method for the configuration program in the PLC to verify whether the configuration software is correct and whether it can meet the expected requirements is a technical problem faced by those skilled in the art. Contents of the invention [000...

AI Technical Summary

Problems solved by technology

[0002] With the increasing complexity of applications in the industrial control industry, the programming volume and complexity of configuration programs (i.e. IEC programs) in PLCs continue to increase, and it is necessary to verify whether the configuration programs are written correctly, whether the operation is reliable and stable, and whether they can achieve Anticipated requirements cannot be met by merely relying on users to perform routine program checks

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