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Meaning in display mode D
In display mode D, the port LEDs indicate whether the port is monitored.
LED color
-
Green
Yellow
4.7.3
"F" LED
The "F" LED shows the fault/error status of the device.
Meaning during device startup
LED color
-
Red
Red
Meaning during operation
LED color
-
Red
4.7.4
LEDs "L1" and "L2"
The "L1" and "L2" LEDs indicate the current range of the power supply at connectors L1 and L2.
The meaning of the "L1" and "L2" LEDs depends on the set display mode, see section "LEDs
"DM1" and "DM2" (Page 39)".
SCALANCE XR-300
Operating Instructions, 03/2023, C79000-G8976-C586-02
LED status
Off
On
On
LED status
Meaning during device startup
Off
Device startup was completed successfully.
On
Device startup is not yet completed or errors have occurred.
Flashing
There are errors in the firmware.
LED status
Meaning during operation
Off
The device is operating free of errors. The signaling contact is
closed.
On
The device has detected a problem. The signaling contact has
opened.
Meaning
Port is not monitored.
Port is monitored for "Link up".
Error handling is triggered when the port changes to the
active status.
If a link has been established at the port, but it should not
be available, the signaling contact indicates an error.
Port is monitored for "Link down".
Error handling is triggered when the port changes to the
inactive status.
If no valid link has been established at the port (e.g. the
communication partner is switched off or the cable is not
connected), the signaling contact indicates an error.
Description of the device
4.7 LED display
37
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