Two Profibus Master with Slave in single network

Hello Expert

In Existing system Profibus DP card (CP5613, PCI) is used in the PC to communicate with ET200M (IM153-1) and its working and in same network we are using S7-1200 Profibus Master to communicate with ET200M and we are unable to communicate if we disconnect the PC then S7-1200 PLC is communicating with ET 200M

Need your expert advise to establishing two profibus DP master with slave using same network, if not possible then please suggest any alternate option

Attached the network architecture for your quick reference

Hi,

did I understand correctly that the S7-1200 communicates with other devices after disconnecting the PC?

Do PC and S7-1200 have the same Profibus address?

Regards,

Frink