Siemens SCALANCE XR524-8C - LED Display; The RM LED for the Redundancy Manager Function; The SB LED for the Standby Function; The F LED for the Fault Status

Description of the device
3.3 LED display
SCALANCE XR-500
28 Operating Instructions, 05/2017, A5E03275845-11
3.3
LED display
3.3.1
The "RM" LED for the "redundancy manager" function
The "RM" LED indicates whether or not the device is a redundancy manager and whether or
not the ring is operating free of error.
LED color
LED status
Meaning
-
Off
The device is not a redundancy manager.
Green On The device is a redundancy manager.
The ring is working without problems, monitoring is activated.
Green Flashing The device is a redundancy manager.
An interruption has been detected on the ring and the device
has switched through.
3.3.2
The "SB" LED for the standby function
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 pas-
sive.
Green
Flashing
The standby function is enabled. The standby section is active.
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. The signaling contact is
closed.
Red On The device has detected a problem. The signaling contact has
opened.