Hey everyone,

I would like to ask about Siemens DP/DP coupler to use in a multi master PLC network. There are a DCS system which needs to control several machines with having their own master PLC through Profibus as attached drawing.

In attached sketches, it could be seen two option of configuration which not sure the right one.
Any feedback, which says the correct option or improvement, would be greatly appreciated.

Thanks,
Ahk