Description of the device
3.3 LED display
SCALANCE XR-500
28 Operating Instructions, 05/2017, A5E03275845-11
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.
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
The "SB" LED for the standby function
The "SB" LED shows the status of the standby function.
The standby function is disabled.
Green On The standby function is enabled. The standby section is pas-
The standby function is enabled. The standby section is active.
The "F" LED for the fault status
The "F" LED shows the fault/error status of the device.
Meaning during device startup
Meaning during device startup
Device startup was completed successfully.
Device startup is not yet completed or errors have occurred.
There are errors in the firmware.
- Off The device is operating free of errors. The signaling contact is
Red On The device has detected a problem. The signaling contact has
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