We added some PK300 controllers to our version 14 DeltaV system. We then moved the logic and interface for a Rockwell E300 overload relay from a PK750 controller to a PK300 controller. After the move, we loose communication with the overload relay. There are other VFD's that were moved and are communicating with the new PK300 controller.
I tried moving the interface from the PK300 back to the PK750 controller, and the communication shows good now. Why?
Is there something we need to do to get the PK300 to communicate with the E300 overload relay? Can the PK300 controller communicate with the E300 overload relay.
See the attached images.
Andre Dicaire