In a PROFINET IO or mixed environment

(PROFINET IO and PROFIBUS DP), the

hardware must support the PROFIsafe bus

profile in V2 mode.

Verify that the employed F I/O on the

PROFINET IO, the employed F CPU and the

employed F Lib (F systems as of V1.3)

support the PROFIsafe bus profile in V2

mode and check whether the fail-safe

parameter 'Compatibility mode' of the F

CPU is disabled.