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The following table outlines the indicator condition and the corresponding status after the power-on self test
has been completed:
LED
Function
Power
Power
Link
Ethernet link
Device sta-
Status1
tus
Communica-
Status2
tion status
Table 2.1: LED diagnostic codes
4
Condition
Indication
Off
No power applied to the device.
Green
Power supply OK
Off
No Ethernet link
Green
Ethernet link OK
Off
The device has an unrecoverable fault; may need replacing.
Flashing green
Device operational but needs commissioning due to configu-
1 s rate
ration missing, incomplete or incorrect.
Green
The device is operating in normal condition.
Flashing red
Device operational but has a fault listed which requires ac-
1 s rate
knowledgment.
The device has an unrecoverable fault; may need replacing.
Red
Flashing sequence and rate of Status2 LED indicates fault
class.
Off
No Modbus/TCP connection.
Green
Modbus/TCP connection established.
UMSLMODGW-1006
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