Allenbradley compact logix PLC connected to DCS through Prosoft PLX31-eip MBTCP

Hello.
I am not familiar with the Prosoft device, but had a look at the data sheet. I hope this helps.

The AB PLC is not Modbus TCP server. That is the role of Prosoft. Also Prosoft has serve function for AB PLC. There must be an internal equivalency between the Modbus and AB addresses. The AB PLC is the client and the communication with Prosoft is done through MSG instructions.
 

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