Siemens SIMATIC PCS 7 Function Manual page 125

Example configuration
The following figure shows how the FF Linkis used:
Procedure
Configure the FF Link in the same way as the PA link. You can find information about this in
the "Configuring DP/PA Link (Page 122)" section.
The FDC157-0 coupler does not appear in the hardware catalog for the configuration of the
bus system.
When configuring in HW Config, you only need to set the transmission rate for the affected
PROFIBUS DP network in the "Network Settings" tab of the "FOUNDATION Fieldbus
Properties" dialog box.
Result
The following figure shows an example configuration in HW Config for the "PCS7_V80" library
library:
Fault-tolerant Process Control Systems (V8.0)
Function Manual, 03/2012, A5E02779471-02
Advantages of fault-tolerant components
4.4 Distributed I/O
125