Siemens SIMATIC LOGO! CMR2020 Operating Instructions Manual page 68

Configuration
6.6 Maintenance
Firmware status
The following information is shown:
● Module name that you defined on the "System" Web page
● Activated firmware version
● Activated on (date)
● Bootstrap version
● Mobile wireless module version
Firmware update
NOTICE
Digitally signed and encrypted firmware prevents manipulation by third parties
To be able to check the authenticity of the firmware, the firmware is digitally signed by
Siemens. This allows manipulation by third parties to be detected and prevented. The
encryption of the firmware is intended to prevent re-engineering.
Note
During the time between unpacking the firmware and the actual update through to the
restarting the CMR, the administration user interface is not blocked.
• During this time, do not make any settings in the Web user interface otherwise you cannot
be certain that these settings will be adopted correctly.
Do not turn off the CMR during the update.
To load a new firmware version on the CMR, follow the steps below:
1. Before you start the update: Read the notes in "Firmware update".
2. Click the "Browse" button.
3. Select the relevant firmware file, for example "LOGO!CMR_v2.0-v2.1.sfw".
4. Click the "Load" button.
5. After successful transfer, the updated firmware version is displayed.
6. Then click the "Activate and restart" button.
7. The CMR restarts.
8. Following the restart, the firmware is updated. During this time all the LEDs light up for
several seconds before the CMR starts.
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LOGO! CMR2020 / LOGO! CMR2040
Operating Instructions, 09/2014, C79000-G8976-C356-01