Siemens Simatic S7-1500R System Manual page 226

⑪
SYNCUP → STOP, RUN-Syncup → STOP
Transition Description
System state SYNCUP → STOP
transition
The redundant system switches from the SYNCUP system state to the STOP
system state if:
You set the primary CPU or both CPUs to STOP with the PG/PC, the
•
display or the mode selector.
SYNCUP is aborted as a result of an error in the primary CPU or in both
•
CPUs.
Operating state RUN-Syncup → STOP
transitions
The primary CPU switches from the RUN-Syncup operating state to the
STOP operating state if:
The primary CPU detects an error that prevents further processing
•
or
You set the primary CPU to STOP with the PG/PC, the display or the
•
mode selector
or
The redundant system processes a STOP command in the user program.
•
SYNCUP → STOP
The backup CPU restarts and switches to the STOP operating state after
SYNCUP aborts if:
SYNCUP is aborted due to an error (for causes and remedies, see sec-
•
tion SYNCUP system state (Page 205))
or
You set the CPU to STOP with the PG/PC, the display or the mode selec-
•
tor.
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.
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