Fault tracing
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Fault tracing
LED indications
The RETA-01 module is equipped with three diagnostic LEDs. The
description of the LEDs is below.
Name Colour Function
Link/Activity
Green
Flashing green - Module is receiving/transmitting
on Ethernet
Steady green - Module has detected link
Off - Module cannot detect link
Network Status
Red/
Green
Flashing red - EtherNet/IP: One or more
connections timed out; Modbus/TCP: No message
has been received within configured time
Steady red - Duplicate IP address
Flashing green - Waiting for connections
Steady green - EtherNet/IP: At least one
EtherNet/IP connection is open against the
module (even to the Message router); Modbus/
TCP: At least one Modbus/TCP connection is
open against the module
Module Status
Red/
Green
Flashing red - Minor fault (e.g. communication
with application lost but recoverable)
Steady red - Major fault (e.g. bad flash, failed
memory test, non-recoverable communication
problem with host)
Steady green - Normal operation
Network Status
(not used) Link/Activity
Module Status
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