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Code sharing / Re: Danfoss Plus+1 Structured Text Coding Engineer ChatGPT
« Last post by Matt on March 31, 2026, 02:59:17 PM »Thanks for sharing! I've been doing some similar LLM experimentation by writing some skills to read/write the PLUS+1 GUIDE PLCopenXML files directly in order to avoid having to copy/paste between the LLM. In the absence of official MCP support, this is the closest I've gotten to something that truly ends up saving time because it enables refactoring in a way that the PLUS+1 IDE does not. I don't have enough confidence in it yet to share it, but thought I'd mention that it's possible and am curious if you tried going this route.
One thing I found is that LLMs seem to have a rough time understanding the cyclical nature of PLC programming, especially related to timers.
There is a similar thread over on PLC Talk that I've been following. It is an interesting read related to this topic: https://www.plctalk.net/forums/threads/does-anyone-here-use-ai-to-help-write-structured-text-codesys-beckhoff.148970/
One thing I found is that LLMs seem to have a rough time understanding the cyclical nature of PLC programming, especially related to timers.
There is a similar thread over on PLC Talk that I've been following. It is an interesting read related to this topic: https://www.plctalk.net/forums/threads/does-anyone-here-use-ai-to-help-write-structured-text-codesys-beckhoff.148970/

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