communication between omron plc and invertor

CX-One, CX programmer, NTST, Syswin ....
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zdravko
Posts: 1
Joined: Tue Apr 08, 2014 9:04 am

communication between omron plc and invertor

Post by zdravko » Tue Apr 08, 2014 10:08 am

Hi,
I have:
Omron PLC CJ1M CPU13 and
Omron SYSDRIVE 3G3JV inverter.

I want to establish communication between PLC and inverter with Modbus protocol. So that PLC sent reference speed to inverter and receive frequency and current from inverter. I think that I need serial communication unit in PLC and also serial communication unit on inverter and wire these two devices with RS422A/485, I'm not sure what else I need?

Please any help or advice!

Thanks!

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