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Special functions of the CPU 410-5H
9.6 Firmware update in RUN mode
Procedure for automatic firmware update
Initial situation: Both CPUs are in redundant operation.
1. For CPU access protection with password: In SIMATIC Manager, select a CPU of the
fault-tolerant system, then select
"PLC > Access Rights > Setup" from the menu. Enter the CPU access password.
2. Select one of the two CPUs using either SIMATIC Manager -> Project, or HW Config.
Do not use the "Accessible nodes" menu command in SIMATIC Manager.
3. Select the "PLC > Update Firmware" menu command.
A wizard is started that can automatically update the firmware on both CPUs.
Alternative procedure for progressive firmware update
Follow the steps below to update the firmware of the CPUs of a fault-tolerant system in RUN:
1. For CPU access protection with password: In SIMATIC Manager, select a CPU of the
fault-tolerant system, then select
"PLC > Access Rights > Setup" from the menu. Enter the CPU access password.
2. Set one of the CPUs to STOP using the ES.
3. Select this CPU in HW Config or in SIMATIC Manager in your STEP 7 project.
4. Select the "PLC -> Update Firmware" menu command.
The "Update Firmware" dialog box opens. Select the firmware file from which the current
firmware will be downloaded to the selected CPU.
5. In SIMATIC Manager or HW Config, select the "PLC > Operating Mode > Switch to" and
select the "With altered operating system" check box.
The fault-tolerant system switches the master/standby roles, after which the CPU will be
in RUN again.
6. Repeat steps 1 to 3 for the other CPU.
7. Restart the CPU. The fault-tolerant system will return to redundant operating state.
Both CPUs have updated firmware (operating system) and are in redundant operating state.
Note
Only the third number of the firmware versions of the master and standby CPU may differ by
1. You can only update to the newer version.
The constraints described in Chapter Operator controls and operating modes of the CPU
410-5H (Page 91) also apply to a firmware update in RUN.
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.
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CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 10/2013, A5E32631667-AA
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