Dear member

check this link for Idea of cross communication in PROFIBUS DP.

J_Bell

DP Node with the capability for DX are PROFIBUS DP Nodes which do not configure the DP Slave, they do not even directly communicate with the DP Slave at all, the only thing they do is listening to a Broadcast TSAP as the Slave sends its Inputs on this Broadcast TSAP to every listener listening, including its DP Master... and who ever.

So in my opinion the only cyclically communicating Master is the DP V0, V1... Master, every other node is maybe able to read... or to configure something if possible, but not able to write.