Omron CQM1 Modbus RTU protocol

Join Date
Sep 2005
Location
Bristol
Posts
3
Hi, Has anyone got some code for this? Can be done with Omron CX protocol software but I don't want to reinvent the wheel. Or another soltion to get a Modbus RTU master device to talk to a CQM1 would be welcome.
 
CQM1 does have PMCR instruction but does not have the same range of DMs or the W memory. Am trying to fiddle with code to adjust. Have seen postings suggesting that Omron have a macro for the CQM1. If anyone has this could they please post.
 
You can change W to general I/O and DM to anywhere you wish. That is not a problem.

That is the Omron one. The only other thing I know of is an FB in CX-One but it is huge and not all that useful.

I will see if I can post some code I used just recently for sucking info out of a Woodward controller but I used the Modbus PM software in the SCB.
 

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