Siemens Simatic S7-1500 - Page 410

Commissioning
12.4 Operating and system states
S7-1500R/H redundant system
System Manual, 01/2024, A5E41814787-AF
409
⑧RUN-Redundant → STOP, RUN-Solo → STOP, RUN → STOP
Transition
Description
Effects
System state tran-
sition
RUN-Redundant → STOP, RUN-Solo → STOP
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.
This system state tran-
sition does not have
any effect on data.
Operating state
transitions
RUN-Redundant → STOP, RUN → STOP
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).
These operating state
transitions have no
effect on data.
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
Effects
System state
transition
SYNCUP → RUN-Solo
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.
This system state tran-
sition does not have
any effect on data.
Primary CPU op-
erating state
transition
RUN-Syncup → RUN
The primary CPU switches from the RUN-Syncup operating state to the RUN
operating state and continues to execute the user program.
These operating state
transitions have no
effect on data.