Siemens SCALANCE XM-400 - Sb Led; F Led

Description of the device
2.7 LED display
SCALANCE XM-400
24 Operating Instructions, 05/2014, C79000-G8976-C306-03
2.7.3
"SB" LED
The "SB" LED shows the status of the standby function.
LED color
LED status
Meaning
-
Off
The standby function is disabled.
Green On The standby function is enabled. The standby section is
passive.
Green
Flashing
The standby function is enabled. The standby section is active.
2.7.4
"F" LED
The "F" LED shows the fault/error status of the device.
Meaning during device startup
LED color
LED status
Meaning during device startup
-
Off
Device startup was completed successfully.
Red
On
Device startup is not yet completed or errors have occurred.
Red
Flashing
There are errors in the firmware.
Meaning during operation
LED color
LED status
Meaning during operation
-
Off
The device is operating free of errors.
Red On The device has detected a problem. The signaling contact has
opened.