Dear all,

we have used the attached procedure numerous of times successfully  in order to establish communications between a WinCC Advanced project and a S7-400H system. At the moment we are working in a project where the customer has requested multiple S7-400H connections to a single WinCC Advanced runtime station. Is this possible?

So far i have manage to create individual connections as well as successfully attached the proxy of the PLC to the network , however i am unable to create more than one PLC changer connection. This obviously has an impact on using the changeover and the loss of communications scripts as per the attached.

Has anyone came across to this scenario before? Any suggestions will be much appreciated.

Thank you in advance.

Kind Regards

Tolis