Commissioning
12.4 Operating and system states
S7-1500R/H redundant system
400 System Manual, 01/2024, A5E41814787-AF
Primary CPU or backup CPU goes into STOP operating state.
Switch the primary CPU or backup CPU into RUN operating
state.
PROFINET ring interrupted Replace defective PROFINET cables or PROFINET devices in
In the PROFINET ring, in addition to the two CPUs, there are
other devices with the media redundancy role "Manager" or
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
Delete the SIMATIC Memory Card of the backup CPU.
Supply voltage of the primary or backup CPU has failed. Restore the supply voltage. Replace any defective system
power/load current supply (PS/PM).
Simultaneous POWER OFF / POWER ON switching at both
CPUs during SYNCUP:
If you switch both CPUs POWER OFF/ON at the same time
during SYNCUP, SYNCUP will be aborted.
Switch both CPUs POWER OFF/ON again. The SYNCUP is
executed again.
12.4.7 System and operating state transitions
System state transitions
The following figure shows the system state transitions of the redundant S7-1500R/H system.
Figure 12-9 System state transitions
To Next Page
Loading...
Need help?
General
