How can I use Process Panels (PP845) with redundant AC 800M controllers?
If it is connection wise, the best solution for the panel is to use a serial comunnication from a CI853 or use a profibus conection to the CI854.
Using the ethernet port you have the problem that the panel will be connected to one network (one controller) but not the other. Also the same problem arises if you use the serial port of the controller.
From the software point of view there is no issue, your application will run with the panel and when the controller swaps to the redundant controller nothing changes and the application would run in the redundant controller.
The redundant AC 800M controllers are usually connected to redundant ethernet network.
No single point of failure can be achieved by using 1 Ethernet Ring topology equivalent to redundant ethernet
The Panel can be conneced to one of the switches in the ring and and all works perfect