Jump to content
Sign in to follow this  
joe.olka

PCOM RS232 Ascii Message Mystery

Recommended Posts

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.

 

Share this post


Link to post
Share on other sites

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).

 

 

 

  • Upvote 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×