Siemens SIMATIC PCS 7 - How to Configure the Redundant PROFIBUS PA

If you are operating multiple MRP rings, the MRP manager must be configured. In most cases
the CPU is configured as MRP manager.
1. Select any one member on PROFINET IO.
2. In HW Config, select the menu Edit > PROFINET IO > Domain Management... .
3. Select the tab "MRP-Domain".
4. In the Area "MRP Domain" choose the MRP Domain (mark the used domain in the tab
"MRP Domain", if more then one are available).
5. On PROFINET IO select the member which should be configured as MRP-Manager.
– Click "Edit".
The dialog box "Edit Media Redundancy" opens.
– In the "Role" drop box select the entry "Manager".
Check the settings and click "OK".
6. Select the members on PROFINET IO whitch should be configured as MRP client. (You
can select more then one).
– Click "Edit".
The dialog box "Edit Media Redundancy" opens.
– In the "Role" drop box select the entry "Client".
Check the settings and click "OK".
Additional information
● Online help for
STEP 7
5.3.7 How to configure the redundant PROFIBUS PA
Introduction
The following is a description of how to configure a redundant PROFIBUS PA that is connected
to a redundant PROFIBUS DP.
Advantages of high availability components
5.3 Communications connections
High Availability Process Control Systems (V9.0)
128 Function Manual, 05/2017, A5E39221836-AA