Configuration, displays and display elements
7.5 LED display
SCALANCE X-300
Operating Instructions, 05/2016, A5E01113043-20
151
7.5
LED display
The "RM" LED for the "redundancy manager" function
The "RM" LED indicates whether or not the device is operating in the role of redundancy
manager and whether or not the ring is operating error-free.
LED color
LED status
Meaning
-
off
The device is not operating in the role of "redundancy manager".
green
on
The device is operating in the role of redundancy manager. The
ring is working without problems, monitoring is activated.
green
flashes
The device is operating in the role of redundancy manager. An
interruption has been detected on the ring and the device has
switched through.
The "SB" LED for the standby function
This 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
flashes
The standby function is enabled. The standby section is active.
The "F" LED for the fault status
The "F" LED (fault) provides information on the error/fault status of the device. While the
device is starting up, this LED has the following meaning:
LED color
LED status
Meaning during the device startup
-
off
Device startup completed successfully.
red
on
Device startup not yet completed or a fault/error has occurred.
red
flashes
Bad firmware image.
During normal operation, the "F" LED provides the following information:
LED color
LED status
Meaning during operation
-
off
No operating problems.
red
on
The device has detected an error. The signaling contact opens.