joe.olka Posted August 31, 2018 Report Share Posted August 31, 2018 I have inherited a project from an engineer who is no longer with my company. The system is a Vision120 communicating to a pc running windows 95. I am tasked with understanding this older system and start to implement updates. I have figured out 99% of the program and communications that is happening with the PC but there is one Command sent to the Vision 120 from the PC that I don't understand what it is for. PC: /00IDED. PLC: /A00IDVUN2A4500153. The ID Command is not covered in the standard PCOM manual. Is there a more thorough PCOM Manual Some Where? Thank you for any assistance. Quote Link to comment Share on other sites More sharing options...
Saragani Posted September 2, 2018 Report Share Posted September 2, 2018 This is a version / ID command. ID is the command, and the ED is the checksum The PLC replies with the Model and OS version. VUN2 is V120-12-UN2, and I'm guessing the OS version is 4.50.15 (I didn't try to debug it. I just parsed the reply in my head with a given Regular Expression, so I might be mistaken about the os version). 1 Quote Link to comment Share on other sites More sharing options...
joe.olka Posted September 5, 2018 Author Report Share Posted September 5, 2018 Saragani, Thank you so much! The Answer was literally staring me in the face. Quote Link to comment Share on other sites More sharing options...
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