Hi Alex,

Alex3110

Hi, Ivan !

There are CPU  313C-2DP and 2 Operator Panels in a Profibus network.

I need to add new PC station with WinCC-project and CP5613A2 onboard with new PB-address.

Do I need to change anything in CPU "Communication Resources" in CPU "offline" and to download then new HW config to CPU to have proper communication between S7-project and WinCC RT ?

Or CPU will "see" by itself when new PB unit connects to PB network and begins to try to connect to the CPU and then S7-project and WinCC RT will communicate Ok ?

in case of PB DP this CPU cfg option is not required to set in my opinion.  You need check for specific comm channel max number of connections/nodes for sure, PB is expected as multi Master class system. In this case, check pls CPU in PB DP options for maybe specific options there, also  CP your type manuals about this for sure.

You can maybe to check for sure inside CPU connection resources if some used/reserved connections are not now needed, so maybe set them lower to have more free resources for sure but you need to know what connections generally you are using.