Can PM891 work with 800xa version 5.0
Voted best answer
PM891 was introduced in SV5.1
If the controller is already loaded with some application, then you may however get the online data from controller to 5.0 OPC server but you can not do any new engineering, modifications, downloads etc from 5.0 system to PM891.. So It doesnt make sense to use it in 5.0.
Simple answer. No
More complicated answer ....
Yes, but in a VERY limited way. The version 5.0 800xA system can communicate with the controller using the OPC server. But you need version 5.1 to be able to program the controller and set up the OPC server. Support would be very limited, and would probably be restricted to PLC connect since there is no guarantee that software running in the controller is properly compatible with a version 5.0 aspect system. So stick with the simple answer... No, the PM891 controller needs a version 5.1 system