Hello,

in this case that 2 PLCs are Profibus Masters on different networks, only DP/DP Coupler solve this situation. You need generally only put that Coupler GSD or simply select right type from HW Catalogue and configure I/O slots in my opinion. Coupler here acts as Slave to both Masters but allow exchange data between them.

Update: pls confirm first that 2 PLCs are really Masters each of them with their own networks, for sure.

Hello semihuygunturk;

For further information on the DP/DP coupler have a look at the manual:

https://support.industry.siemens.com/cs/us/en/view/1179382

Hope this helps,

Daniel Chartier