Siemens Simatic PCS 7 Function Manual page 132

Advantages of high availability components
5.3 Communications connections
6. Optional steps for a redundant FOUNDATION Fieldbus:
7. Click "OK".
The bus link is created with a FF subsystem.
Result
The following figure shows the resulting configuration in HW Config:
Additional information
● Operating Instructions
● Operating Instructions
132
These steps depend on the bus link that is used for the interconnection to the PROFIBUS DP:
Select the following modules depending on the bus link used:
1.
● for FF Link: "IM 153-2 FF"
● for Compact FF Link: "IM 655-5 FF"
2. In the table, double click the slot of the first coupler depending on the bus link used.
● for FF Link: "FDC 157"
● for Compact FF Link: "Field Device Coupler"
The "Properties - Coupler" dialog box opens.
3. Select the "Parameters" tab.
4. Select the redundancy mode in the "Value" column:
● No redundant configuration (default)
● Coupler redundancy
● Ring redundancy
SIMATIC; Bus Link; FF Link
SIMATIC; Bus Link; Compact FF Link
High Availability Process Control Systems (V9.0)
Function Manual, 05/2017, A5E39221836-AA