Cause of SYNCUP abort Solution
In the PROFINET ring, in addition to the two CPUs, there are
other devices with the media redundancy role "Manager" or
"Manager (auto)".
Configure the media redundancy role "Client" for all other
devices in the PROFINET ring.
In a configuration with PROFINET rings (R1), the backup CPU
is assigned the media redundancy role "Not device in the ring"
before the SYNCUP.
Delete the SIMATIC Memory Card of the backup CPU.
Supply voltage of the primary or backup CPU has failed. Restore the supply voltage. Replace a defective load current
supply (PM).
Simultaneous POWER OFF / POWER ON switching at both CPUs
during SYNCUP:
If you switch both CPUs POWER OFF/ON at the same time dur
ing SYNCUP, SYNCUP will be aborted.
Switch both CPUs POWER OFF/ON again. The SYNCUP is
executed again.
See also
Resetting CPUs to factory settings (Page 338)
11.4.7 System and operating state transitions
System state transitions
The following figure shows the system state transitions of the redundant S7‑1500R/H system.
67$5783
32:(5
21
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6723
6<1&83
581
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Figure 11-9System state transitions
Operating state transitions
Operating state transitions of the redundant system
281
Commissioning
11.4 Operating and system states
S7-1500R/H redundant system
System Manual, 11/2022, A5E41814787-AD
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