Siemens SIMATIC S7-1500 System Manual page 410

⑧RUN-Redundant → STOP, RUN-Solo → STOP, RUN → STOP
Transition Description
System state tran- RUN-Redundant → STOP, RUN-Solo → STOP
sition
The redundant system switches from the RUN-Redundant/RUN-Solo system
state to the STOP system state if:
• The redundant system detects an error that prevents further processing
or
• The redundant system processes a STOP command in the user program
or
• You set the redundant system to STOP with the PG/PC.
Operating state RUN-Redundant → STOP, RUN → STOP
transitions
The primary CPU switches from the RUN-Redundant/RUN operating state to
the STOP operating state if:
• The CPU detects an error that prevents further work on one of the two
CPUs.
or
• You set the CPU to STOP with the PG/PC, the display or the mode selector.
• You pull/plug a module (PS/CP) in the R-system (as of FW version V3.1).
RUN-Redundant → STOP
The backup CPU switches from the RUN-Redundant operating state to the
STOP operating state.
⑨ SYNCUP → RUN-Solo, RUN-Syncup → RUN
Transition Description
System state SYNCUP → RUN-Solo
transition
The redundant system switches from the SYNCUP system state to the RUN-
Solo system state if:
• You execute POWER OFF for the backup CPU
or
• The redundant system detects an error during SYNCUP that prevents re-
dundant operation
or
• You set the backup CPU to STOP with the PG/PC, the display or the mode
selector.
RUN-Syncup → RUN
Primary CPU op-
erating state
The primary CPU switches from the RUN-Syncup operating state to the RUN
transition
operating state and continues to execute the user program.
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
Commissioning
12.4 Operating and system states
Effects
This system state tran-
sition does not have
any effect on data.
These operating state
transitions have no
effect on data.
Effects
This system state tran-
sition does not have
any effect on data.
These operating state
transitions have no
effect on data.
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