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MODBUS RTU master on OMRON CPM2
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marke
post Feb 18 2006, 08:54 AM
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Hi

I have a requirement to use the OMRON CPM2 series plcs to communicate with soft starters and drives. To do this, it needs to operate as a MODBUS master. This will require hand coding of the transmit strings etc.
Any one got information on doing this, or do I have to start from scratch?

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omron
post Mar 12 2006, 05:01 PM
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You can get omron's CX-protocol program. You can implement your modbus protocol there in reference with the modbus address tables of your soft starter e.t.c. The instruction that enables the communication that should be used in your ladder programm is the PMCR (protocol macro).

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omron
post Mar 17 2006, 10:37 AM
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my bad.. CPM2 doesnt support pmcr.. :(


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