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GFK-1541B Chapter 2 Installation 2-39
2
LED Pattern Where Stopped Possible Cause Corrective Actions
❍
EOK
(OFF)
❍
LAN
(OFF)
❍
STAT (OFF)
A
Hardware
Failure
Fatal Hardware Error.
Make sure the PLC has power.
Examine PLC Fault Table for clues.
Recheck PLC Programmer
configuration.
Power off baseplate, inspect the
Interface for loose components,
reseat the module, and Restart.
If the problem persists, replace the
PLC hardware.
✫
EOK (Slowblink)
✫
LAN
(Slowblink)
✫
STAT (Slowblink)
All LEDs blink in unison.
B
Software
Loader
Software corrupt.
Connect a PC Software Loader and load
new software. See Appendix C.
✫
EOK
(Slowblink)
❍
LAN
(OFF)
❍
STAT (OFF)
C
Waiting for
Configuration
from PLC
Did not configure slot using the
PLC Programmer.
CPU not communicating with
Ethernet Interface.
(Condition can last a maximum of
2 seconds.)
Use the PLC Programmer
configuration software to configure
the Interface then store the
configuration to the PLC CPU.
Power cycle the PLC.
Clear faults and Restart Interface.
✫
EOK (Slowblink)
●
/
✲
/
❍
LAN
(ON/Traffic/OFF)
✫
STAT (Slowblink)
EOK and STAT blink in unison.
D
Waiting for IP
Address
Interface’s IP address has not been
configured or has been configured
as 0.0.0.0.
Use the PLC Programmer to
configure the Interface with a non-
zero IP address.
Assign IP address over network
●
EOK (ON)
●
/
✲
/
❍
LAN (ON/Traffic/OFF)
●
/
❍
STAT(ON/OFF)
E
Operational
If the LAN LED is OFF,
the problem may be
network cable not
connected
If the STAT LED is OFF, an
exception condition has
occurred.
Connect cable.
Examine PLC Fault Table to find out
why the STAT LED is OFF.