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GFK-1084B Chapter 2 Installing the Ethernet Interface

Table 2-1. Problems During Power-Up

LED Pattern Where Stopped Possible Cause Corrective Actions
OK (Off)
LAN(Off)
SER (Off)
STAT(Off)
A
Hardware
Failure
Fatal Hardware Error. Make sure the PLC has power.
Examine PLC Fault Table for clues.*
Recheck configuration.
Power off baseplate, inspect the
Interface for loose components,
reseat the Interface, and Restart.
Try a different slot.
If the problem persists, replace the
Interface or PLC hardware.
OK (Slowblink)
LAN(Slowblink)
SER (Slowblink)
STAT(Slowblink)
All LEDs blink in unison.
B
Software
Loader
Restart button pressed
for 5–10 seconds.
Station Manager LOAD
command issued.
Software corrupt.
Connect a PC Software Loader and
load new software. See Appendix
E.
Cycle power or press Restart
button again for less than 5 seconds
to restart the Interface and clear the
load request.
OK (Slow blink)
LAN(Off)
SER (Off)
STAT(Off)
C
Waiting for
Configuration
from PLC
Did not configure slot.
New CPU with no
configuration.
(Condition can last a maxi-
mum of 2 minutes.)
PLC in STOP/FAULT .
Use configuration software to
configure the Interface then store
the configuration to the PLC CPU.
Make sure Interface is in the correct
slot on the baseplate.
Power cycle the PLC.
Clear faults and reset Interface.
OK (Slowblink)
/ / LAN(On/Traffic/Off)
SER (Off/Slowblink)
STAT(Slowblink)
OK 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.
Configure the Interface with a
non-zero IP address.
Use a BOOTP server to provide
Interface with a non-zero IP
address.
OK (Slowblink)
/ / LAN(On/Traffic/Off)
SER (Slow blink)
/STAT(On/Off)
OK and SER blink in unison.
E
Maintenance
Restart button pressed
for more than 10
seconds.
Station Manager MAINT
command issued.
Internal System Error
when Interface was
Operational caused a
restart and entrance into
Maintenance.
If you did not intend to enter
Maintenance press the Restart
button for less than 5 seconds. This
clears the Maintenance request.
Examine PLC Fault Table for clues.*
If you need to use the Station
Manager to troubleshoot a
problem, see GFK-1186, TCP/IP
Ethernet Communications Station
Manager Manual.
OK (On)
/ / LAN(On/Traffic/Off)
SER (Off)
/STAT(On/Off)
F
Operational
If the LAN LED is Off, the
problem may be:
Transceiver not
connected to Interface or
tranceiver not connected
to Ethernet cable or bad
transceiver.
Network cable not
terminated properly.
SQE not enabled on
transceiver.
If the STAT LED is Off, an
exception condition has oc-
curred.
Connect cable and transceiver
properly. Replace transceiver .
Terminate network cable properly.
Set SQE ON on transceiver in
accord with manufacturer’s
instructions.
Examine PLC Fault Table to find
out why the STAT LED is Off . *
* Identify the PLC fault message using Logicmaster 90 or CIMPLICITY Control then refer to Table 4-1 in Chapter 4,
Troubleshooting, for corrective actions.