PLC to Eric Drive (EI-450 Series) VFD Communication

AviMIT

Member
A
Join Date
Oct 2014
Location
Auckland
Posts
1
Hello,

I have a VFD (EI-450 Series - http://www.rich-electric.com/?page_id=142 ) and ControlLogix 5561 L61. I am supposed to communicate the two via modbus rtu protocol and the VFD is connected to the motor. I have a sample modbus master programme called ModbusMaster.ACD from Rockwell Automation and I got a manual on that programme ( https://www.google.co.nz/search?hl=en&q=cig-ap129a&meta=&safe=active&gws_rd=ssl ). I am able to get the communication but is stuck on where to put the data on so that the frequency can be given to the drive so that the motor can run.

Does anyone have any idea about that?

Thanks.

AviMIT
 

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