Siemens Simatic S7-1500R System Manual page 225

Commissioning
9.4 Operating and system states
⑩
STARTUP → STOP
Transition Description
System state STARTUP → STOP
transition
The redundant system switches from the STARTUP system state to the
STOP system state if:
Primary CPU
The primary CPU detects an error during startup that prevents further
•
operating state
processing
transition
or
You set the primary CPU to STOP with the PG/PC, the display or the
•
mode selector
or
The primary CPU processes a STOP command in the startup OB
•
or
In the CPU properties, you have set the following for startup behavior:
•
–
–
The primary CPU switches to STOP.
224
Too short a configuration time for the distributed I/O and
"Startup CPU only if compatible"
Effects
This system state tran-
sition does not have
any effect on data.
This operating state
transition does not
have any effect on
data.
S7-1500R/H redundant system
System Manual, 10/2018, A5E41814787-AA