Re: [foxboro] Foxboro DCS to other DCS communication

We have links between DeltaV and Foxboro I/A, but I wouldn't recommend the
methods we used. We're using Modbus serial communication and a whole host
of custom applications to make them work. They were set up to both monitor
and control across the link in either direction, depending on the
application. I think the only controls that are still in use are steam
pressure controls in units controlled by DeltaV that are operated from the
Utilities console on Fox I/A. If we were doing it over, I think we'd look
more closely at OPC. There was a perception at the time that Modbus was
more reliable than OPC, but the reliability of the custom applications to
make it work wasn't considered.

Jerry Hidahl
Process Control Engineer
Port Neches Performance Products
Huntsman Corporation

 
 
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