Configuring Ff Link - Siemens SIMATIC PCS 7 Function Manual

Advantages of fault-tolerant components
4.4 Distributed I/O
Additional information
● Manual
4.4.7

Configuring FF Link

Functionality
The FF Link consists of two IM 153-2 FF interface modules and one or more FDC157-0
couplers for a connection to a redundant PROFIBUS DP . The FDC157-0 coupler is used to
build a gateway between a redundant PROFIBUS DP subnet and a non-redundant FF
segment. During configuration in HW Config, you can only select the FF Link in SIMATIC
Manager; the FDC157-0 coupler is not displayed.
The FDC157-0 coupler is not displayed for addressing and communication. It does not have
its own bus address or diagnostic address; it simply forwards message frames. The field
devices connected to the FF segment are addressed directly from the PLC.
The FDC157-0 coupler can be reconfigured in runtime but it cannot be replaced.
Note
You can find a list of FF devices that can be connected in the operating instructions
Bus link; FF Link bus link. Please note that PCS 7 driver blocks are not available for all of the
devices listed. Contact the PCS 7 Support Center to determine if a driver block is available
for the device you have selected.
Requirements
● The PCS 7 project with a SIMATIC H station is open in SIMATIC Manager .
● A redundant DP master system is configured for the SIMATIC H station in HW Config.
● SIMATIC PDM V8.0 SP1 or higher
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SIMATIC DP/PA Link and Y Link Bus Couplings
Fault-tolerant Process Control Systems (V8.0)
Function Manual, 03/2012, A5E02779471-02
SIMATIC;