Opening The H-Cir Wizard - Siemens SIMATIC CPU 410 System Manual

Plant changes during redundant operation - H-CiR
12.9 Removal of components
12.9.3

Opening the H-CiR wizard

The next steps, except for the conversion of the hardware, are performed by the H-CiR
wizard.
Reaction of the I/O to the new master CPU
While the previous master CPU is still in STOP, the I/O reacts to the new master CPU as
follows:
Type of I/O
The I/O modules
to be removed
I/O modules still
available
The DP stations to
be removed
1) No longer included in the hardware configuration, but still plugged
2) CPUs are also first reset. Output modules briefly have 0 (instead of the configured substitute or
holding values).
Reaction of the I/O to entering redundant mode
The fault-tolerant system is in redundant mode with the new configuration. The I/O reacts as
follows:
Type of I/O
The I/O modules
to be removed
I/O modules still
available
The DP stations to
be removed
1) No longer included in the hardware configuration, but still plugged
2) CPUs are also first reset. Output modules briefly have 0 (instead of the configured substitute or
holding values).
Reaction to exceeding the monitoring times
When one of the monitored timers exceeds the configured maximum value, the update is
aborted and no master switchover is performed. The H system remains in solo mode with
the previous master CPU and attempts to later perform the master switchover under certain
conditions. For details, refer to the section Time monitoring (Page 120).
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One-sided I/O of the
previous master CPU
No longer accessed by the CPU.
1)
Driver blocks are no longer available.
No longer accessed by
the CPU.
Output modules have the
configured substitute or
holding values.
like I/O modules to be removed (see above)
One-sided I/O of the
reserve CPU
No longer accessed by the CPU.
1)
Driver blocks are no longer available.
Newly configured
2)
updated by the CPU.
like I/O modules to be removed (see above)
One-sided I/O of the new
master CPU
Newly configured
updated by the CPU.
One-sided I/O of the
master CPU
and Continue working without interruption.
CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC
Switched I/O
and Continue working without
2)
interruption.
Switched I/O