System Diagnostics Of A Fault-Tolerant System - Siemens SIMATIC PCS 7 System Manual

Operator controls and operating modes of the CPU 410-5H
7.2 System states of the redundant CPU 410-5H
Changing to STOP system state (stopping the fault-tolerant system)
1. Select the fault-tolerant system in the table.
2. Select the Stop button.
Result
Both CPUs switch to STOP.
Changing to standalone mode (stop of one CPU)
1. In the table, select the CPU that you want to stop.
2. Select the Stop button.
Result:
The selected CPU goes into the STOP state, while the other CPU remains in RUN state; the
fault-tolerant system continues operating in standalone mode.
Note
Any set up access right is not canceled until you stop the SIMATIC Manager. You should
reset the access right once again to prevent unauthorized access. You reset the access right
in the SIMATIC Manager with the menu command PLC > Access Rights > Cancel.
7.2.7

System diagnostics of a fault-tolerant system

The diagnose hardware function identifies the state of the entire fault-tolerant system.
Procedure:
1. Select the fault-tolerant station in SIMATIC Manager.
2. Select the menu command PLC > Diagnostics/Setting >Diagnose hardware.
3. In the "Select CPU" dialog, select the CPU and confirm with OK.
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CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 09/2014, A5E32631667-AB