Fairbanks FB2255 Series Instrument PC2255 PC Software Utility Program - Manual (Page 40)

Section 6: Fieldbus/Bluetooth
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5.2.2. DEVICENET ( 29578 ), CONTINUED
NETWORK STATUS LED
MODULE STATUS LED
STATE INDICATION
OFF Not online/ No power
GREEN Online, one or more connection established
FLASHING GREEN (1 Hz) Online, no corrections established
Red Critical link failure
Flashing Red (1 Hz) One or more connections timed out
Alternating Red/Green Self-test
STATE INDICATION
OFF No power
GREEN Operating in normal condition
FLASHING GREEN (1 Hz) Missing/Incomplete configuration/ Device needs commissioning
Red Unrecovrerable fault(s)
Flashing Red (1 Hz) Recoverale fault(s)
Alternating Red/Green Self-test
1 NS = Operation Mode LED
2 MS = Mode Status LED
3 Connection = DeviceNet Connector