Meaning in display mode D
In display mode D, the "L1" and "L2" LEDs indicate whether the power supply is monitored.
Table 4-3
Power supply with devices with 24 VDC
L1/L2 LED
L1/L2 connector
LED color
LED status
-
Off
Power supply is not monitored.
If the power supply is too low, the signaling contact does not re‐
spond.
Green
On
Power supply is monitored.
If the power supply is too low, the signaling contact responds.
Table 4-4
Power supply with devices with 54 VDC
L1/L2 LED
L1/L2 connector
LED color
LED status
-
Off
Power supply is not monitored.
If the power supply is too low, the signaling contact does not re‐
spond.
Green
On
Power supply is monitored.
If the power supply is too low, the signaling contact responds.
4.3.7
Port LEDs
The port LEDs "P1", "P2" etc. show information about the corresponding ports.
The meaning of the Port LEDs depends on the set display mode, see section "LEDs "DM1" and
"DM2" (Page 29)".
Meaning in display mode A
In display mode A, the port LEDs indicate whether a valid link exists.
LED color
LED status
Meaning
-
Off
No valid link to the port (for example station turned off or
cable not connected).
Green
On
Link exists and port in normal status. In this status, the port
can receive and send data.
Flashes once per period*
Link exists and port in "blocking" status. In this status, the
port only receives management data (no user data).
Flashes three times per pe‐
riod*
Link exists and port turned off by management. In this sta‐
tus, no data is sent or received via the port.
Flashes four times per pe‐
riod*
Link exists and is in the "monitor port" status. In this status,
the data traffic of another port is mirrored to this port.
Yellow
Flashing / lit
Receiving data at port
* 1 period ≙ 5 seconds
Description of the device
4.3 LED display
SCALANCE XP-200
Operating Instructions, 03/2021, C79000-G8976-C428-08
31
