Description of the device
2.6 SELECT / SET button
SCALANCE XM-400
Operating Instructions, 05/2014, C79000-G8976-C306-03
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Restart with the SELECT/SET button disabled for "Restore Factory Defaults"
If you have disabled the SELECT/SET button for "Restore Factory Defaults" in the
configuration, this does not apply during the startup phase. When you restart after cycling
power, the configuration can nevertheless be deleted using this button. This action cannot
be undone and you then need to reload the device configuration. This can lead to
disturbances and failures in the corresponding network area.
Using the fault mask, you specify an individual "good status" for the connected ports and the
power supply. Deviations from this status are displayed as errors/faults.
To define the fault mask, follow the steps below:
1. Switch to display mode D.
Display mode D is active if the "DM1" and "DM2" LEDs are lit green..
If another display mode is active, you will need to press the "SET/SELECT" button
repeatedly until the "DM1" and "DM2" LEDs are lit green.
2. Hold down the "SELECT/SET" button for 5 seconds.
After 2 seconds,the "DM1" and "DM2" LEDs start to flash for 3 seconds. At the same
time, the port LEDs go on one after the other.
After you have held down the button for 5 seconds, the current settings are stored as the
"good status".
If you release the button before the 5 seconds have elapsed, the previous fault mask will
be retained.
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