Siemens SIMATIC S7-1500 System Manual page 207

3. In the Inspector window, navigate to "Properties > General > Advanced options > Media
redundancy".
4. Change the MRP domain to "mrpdomain-1" (if required) and the media redundancy role
for the H-CPU to "Manager (auto)".
5. Select the PROFINET interface X1 of the lower H-CPU of the S7-1500H redundant system.
6. Change the MRP domain to "mrpdomain-2" (if required) and the media redundancy role
for the H-CPU to "Manager (auto)".
7. Enable the "Diagnostic interrupts" option.
NOTE
If the "Diagnostic interrupts" option is enabled, diagnostic interrupts are generated at the
ring ports in the event of the following errors:
Wiring or port error:
– A neighbor of the ring port does not support media redundancy MRP.
– A ring port is connected to a non-ring port.
– A ring port is connected to the ring port of a different MRP domain.
You can find more information on this topic in the STEP 7 online help.
5. Specify MRP role and MRP domain for the R1 devices of the redundant S7-1500H system in
STEP 7.
To define the media redundancy for the further devices of the rings, proceed as follows:
1. Switch to the device view of the left ET 200SP (ET200SP-R1_1).
2. Click on the PROFINET interface X1 of the left IM 155-6 PN R1.
3. Change the MRP domain to "mrpdomain-1" (if required) and the media redundancy role to
"Client".
4. Click on the PROFINET interface X1 of the right IM 155-6 PN R1.
5. Change the MRP domain to "mrpdomain-2" and the media redundancy role to "Client".
6. Switch to the device view of the right ET 200SP (ET200SP-R1_2) and repeat steps 2 to 5.
NOTE
Alternative method for assigning MRP role and MRP domain.
For larger projects, we recommend assigning MRP roles and MRP domains as follows:
1. Switch to the network view.
2. Click the connection PN/IE_1.
3. In the Inspector window, navigate to "Properties > General > MRP domains".
4. Scroll down to the "Devices" section
• Under "PROFINET IO system", select the controller interface.
• Under "Devices" you configure the respective MRP domain and the MRP role.
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD
8.4 Configuring H-CPUs with PROFINET rings and R1 devices
Configuration
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