Hello.

I have two Sicam CP-8050 that is in redundancy. I have Zenon 10 as HMI. The driver I have set-up 

The Zenon driver has a primary and secondary connection. Whit Redundancy according to 60870-104 edition 2.0.

The problem is when I'm forcing the one RTU to be primary the HMI will not switch over to B device
When switchn back to device A it will work.
Is there some documentation on how to configure Zenon whit Siemens Sicam CP-8050?