Configuring S7F/FH hardware
6.3 Communications module parameters/Networks
Fail-safe signal modules on PROFINET IO as well as in the downstream PROFIBUS DP* via IE/PB Link in combination
with signal modules on PROFIBUS DP
* PROFIsafe V2 mode required
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Compendium Part B - Process Safety (V8.2)
Operating Manual, 07/2016, A5E35031794-AB