Siemens SIMATIC CPU 410 System Manual page 149

Proceed as follows to activate the loaded firmware at a later time:
1. Open the station containing the CPU you want to update in HW Config.
2. Select the CPU.
3. Select the "PLC -> Update firmware" menu command.
4. Make sure that the same firmware version as the loaded firmware has been loaded to
both CPUs.
The version of the loaded firmware is displayed in the "Update firmware" dialog.
5. Select "Activate loaded firmware" and click "Execute".
The CPU in rack 1 is switched to STOP
The new firmware is activated in the CPU in rack 1
6. Click "Continue".
The system switches to the CPU with the new firmware.
The new firmware is activated in the CPU in rack 0.
The CPU in rack 0 is started.
The CPU in rack 0 is linked up and updated.
Both CPUs have updated firmware (operating system) and are in the redundant operating
state.
Firmware update in one stage
Proceed as follows to update the firmware of the CPUs of a fault-tolerant system in RUN:
1. For CPU access protection with password: Select a CPU of the fault-tolerant system in
SIMATIC Manager and select menu command
PLC > Access Authorization > Setup. Enter the CPU access password.
2. Select the CPU.
3. Open the station containing the CPU you want to update in HW Config.
4. Select the "PLC -> Update firmware" menu command.
5. In the "Update Firmware" dialog, select the path to the firmware update files (*.UPD)
using the "Browse" button.
After you have selected a file, the information in the bottom boxes of the "Update
Firmware" dialog box indicates the modules for which the file is suitable and as of which
firmware version.
6. Select "Load and activate firmware".
CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC
Special functions of the CPU 410
9.13 Updating firmware in redundant mode
149