Festo CP-FB13-E - Page 95

3. Diagnosis
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Festo P.BE-CP-FB13-E-EN en 0112e
Y ou can set two types of error reactions of the control system.
– When a fault occurs the controller switches to the operat-
ing mode “STOP” (hard error reaction) or
– when a fault occurs the controller remains in the operat-
ing mode “RUN” (soft error reaction).
Control system
Module Meaning STOP RUN
SIMATIC S5 with
IM 308C
OB23 Reaction to QVZ with d irect
periphery access
Default OB is programmed
OB24 Reaction t o QVZ with periphery
access via process image
Default OB is programmed
OB35 Reaction to PEU (periphery not
clear)
Default OB is programmed
SIMATIC S7/M7 OB82 Reaction to a device-related
diagnosis
Default OB is programmed
OB86 Reaction to failure of a DP slave Default OB is progra mmed
Further details can be found in the appropriate manuals for
the control systems.