At the end of this article, there are 55 practical case materials.
Introduction: When we learnPLC programming, why does it take us much longer to develop programs than others? It could be due to our unfamiliarity with the software or not using the right methods. The following programming and debugging methods can significantly improve our work efficiency!
Method1: Use of Reference Projects
When we are writing programs, we need to refer to others’ or our previously written project programs. We can use the “Reference Project” feature in the software, which allows us to drag and drop previous project programs into the current project, making it very convenient!
Method2: Use of Project Libraries
Once we have written and encapsulated a program, we don’t want to waste that encapsulation. We hope to use it in other projects next time, such as the “Cylinder” program, “Analog” program, “Servo Control” program, etc. We can use the “Project Library” feature to save it, allowing us to use it directly next time and iterate on the original program. This iterative approach will make you increasingly proficient!
1)Create a “Library”, name it appropriately, and change the storage path.
2)Drag the writtenFB program block into the global library
3)Open in other projects: just find the storage path.
Method3: Use of Call Structures
When we write or look at programs written by others, once the program blocks become numerous, their calling relationships become complex. We can use the “Call Structure” feature to quickly clarify the programming framework.
The “Subordinate Structure” is exactly the opposite of the “Call Structure”. The following diagram showsOB1 callingFC3, and thenFC3 callingFC5 program blocks.
Method4: Use of Cross-References
When we write programs, if the same address is used in multiple program segments and we cannot quickly find its address, we can use the “Cross-Reference” feature to quickly locate the usage position.
The following shows where the address “Q0.1” is used, specifically in network3 and network12 of the main program.
Recently, many friends have asked for case books, saying that reading articles on mobile is not very convenient. I took some time to organize all 55 practical cases, which are quite typical, including cylinder control programs, alarm programs, program frameworks, motion control program encapsulation, analog control of frequency converters, communication, and other practical cases.If you need them, you can add me on WeChat: biao467524527. If you can’t add me, feel free to message me!
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