7.2 Restoring the factory settings
NOTICE
Previous settings
If you reset, all the settings you have made will be overwritten by factory defaults.
NOTICE
Inadvertent reset
An inadvertent reset can cause disturbances and failures in the congured network.
Restoring the factory settings during the startup phase
NOTICE
Reset despite disabled "SELECT/SET" button
Using the "SELECT/SET" button, you can always reset the device parameters to the factory 
defaults during the startup phase of the device. This applies also if the "Reset to Factory 
Defaults" function was disabled in the conguration. This allows you to reset the device to the 
factory defaults in an emergency.
If the function has been disabled in the conguration, it is only disabled on completion of the 
startup phase.
To reset the device to the factory defaults during the startup phase, follow the steps below:
1. Turn o the power to the device.
2. Now press the "SELECT/SET" button and reconnect the power to the device while holding 
down the button.
3. Hold down the button until the red error LED "F" stops ashing and is permanently lit.
4. Now release the button and wait until the fault LED "F" goes o again.
5. The device starts automatically with the factory defaults.
Restoring the factory defaults during operation
You can also reset the device to the factory defaults during operation, see section "SELECT / SET 
button (Page 31)".
Upkeep and maintenance
7.2 Restoring the factory settings
SCALANCE XM-400
66 Operating Instructions, 03/2021, C79000-G8976-C306-10