Siemens SIMATIC S7-1500 System Manual page 191

Installation of the firmware update
Impermissible plant states possible
The CPU switches to STOP mode or the interface module to "station failure" as a result of
the firmware update being installed. STOP or station failure can have an adverse effect on
the operation of an online process or a machine.
Unexpected operation of a process or a machine can lead to fatal or severe injuries and/or
to material damages.
Ensure before installing the firmware update, that the CPU is not executing any active
process.
Procedure using STEP 7
Proceed as follows to perform an online firmware update via STEP 7:
1. Select the module in the device view.
2. Select the "Online & diagnostics" command from the shortcut menu.
3. In the "Functions" folder, select the "Firmware update" group.
For a CPU, you can select whether you want to update the CPU or the CPU's display.
4. Click the "Browse" button to select the firmware update files in the "Firmware update"
area.
5. Select the matching firmware file. The table in the firmware update area lists all modules
for which an update is possible with the selected firmware file.
6. Click the "Run update" button. If the module can interpret the selected file, the file is
downloaded to the module. If you must change the CPU mode, STEP 7 prompts you to
do so with dialogs.
Updating the firmware
The "Run firmware after update" check box is always selected.
After a successful loading process the CPU includes imports the firmware and subsequently
operates with the new firmware.
Note
If a firmware update is interrupted, you need to remove and insert the module before starting
the firmware update again.
Automation system
System Manual, 12/2014, A5E03461182-AC
WARNING
Maintenance
13.4 Firmware update
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