Description of the device
3.3 LED display
SCALANCE XR-500
Operating Instructions, 05/2014, A5E03275845-05
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3.3.3
The "F" LED for the fault status
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.
3.3.4
"DM1" and "DM2" LEDs for the display mode
The "DM1" and "DM2" LEDs indicate which display mode is set.
There are 5 display modes (A, B, C, D, and E). Display mode A is the default mode.
Depending on the set display mode, the "L1", "L2" LEDs and the port LEDs show different
information.
LED color
LED status
Meaning
DM1 LED
DM2 LED
-
Off
Display mode A
Green
On
Off
Display mode B
Green
Off
On
Display mode C
Green
On
Display mode D
Green
Flashing
Off
Display mode E