Siemens Simatic S7-1500R System Manual page 224

⑧
RUN-Redundant → STOP, RUN-Solo → STOP, RUN → STOP
Transition Description
System state RUN-Redundant → STOP, RUN-Solo → STOP
transition
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
The CPU detects an error that prevents further work on both CPUs, for
•
example if the cycle time is exceeded (if there is an OB 80, not until the
3rd time the cycle time is exceeded, see section Start events (Page 153))
or
You set the CPU to STOP with the PG/PC, the display or the mode selec-
•
tor.
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
•
redundant operation
or
You set the backup CPU to STOP with the PG/PC, the display or the
•
mode selector.
Primary CPU RUN-Syncup → RUN
operating 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, 10/2018, A5E41814787-AA
Commissioning
9.4 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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