GE 90-30 PLC User Manual

Page 32

2-19

GFK-1084B

Chapter 2 Installing the Ethernet Interface

Table 2-1. Problems During Power-Up

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LED Pattern

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Where Stopped

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Possible Cause

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Corrective Actions

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OK (Off)

LAN (Off)

SER (Off)

STAT (Off)

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Hardware
Failure

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Fatal Hardware Error.

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H Make sure the PLC has power.
H Examine PLC Fault Table for clues.*
H Recheck configuration.
H Power off baseplate, inspect the

Interface for loose components,
reseat the Interface, and Restart.

H Try a different slot.
H If the problem persists, replace the

Interface or PLC hardware.

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l OK (Slowblink)

l LAN (Slowblink)

l SER (Slowblink)

l STAT (Slowblink)

All LEDs blink in unison.

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Software
Loader

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H Restart button pressed

for 5–10 seconds.

H Station Manager LOAD

command issued.

H Software corrupt.

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H Connect a PC Software Loader and

load new software. See Appendix

H Cycle power or press Restart

button again for less than 5 seconds
to restart the Interface and clear the

load request.

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l OK (Slow blink)

LAN (Off)

SER (Off)

STAT (Off)

БББББ

Waiting for
Configuration
from PLC

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H Did not configure slot.
H New CPU with no

configuration.

(Condition can last a maxi-
mum of 2 minutes.)

H PLC in STOP/FAULT.

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H Use configuration software to

configure the Interface then store

the configuration to the PLC CPU.

H Make sure Interface is in the correct

slot on the baseplate.

H Power cycle the PLC.
H Clear faults and reset Interface.

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l OK (Slowblink)

F/:/

LAN (On/Traffic/Off)

SER (Off/Slowblink)

l STAT (Slowblink)

OK and STAT blink in unison.

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Waiting for IP
Address

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Interface’s IP address has
not been configured or has
been configured as 0.0.0.0.

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H Configure the Interface with a

non-zero IP address.

H Use a BOOTP server to provide

Interface with a non-zero IP

address.

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l OK (Slowblink)

F/:/

LAN (On/Traffic/Off)

l SER (Slow blink)

STAT (On/Off)

OK and SER blink in unison.

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Maintenance

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H Restart button pressed

for more than 10

seconds.

H Station Manager MAINT

command issued.

H Internal System Error

when Interface was

Operational caused a

restart and entrance into
Maintenance.

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H If you did not intend to enter

Maintenance press the Restart

button for less than 5 seconds. This

clears the Maintenance request.

H Examine PLC Fault Table for clues.*
H If you need to use the Station

Manager to troubleshoot a

problem, see GFK-1186, TCP/IP

Ethernet Communications Station
Manager Manual.

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OK (On)

F/:/

LAN (On/Traffic/Off)

SER (Off)

STAT (On/Off)

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Operational

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If the LAN LED is Off, the
problem may be:
H Transceiver not

connected to Interface or

tranceiver not connected
to Ethernet cable or bad

transceiver.

H Network cable not

terminated properly.

H SQE not enabled on

transceiver.

If the STAT LED is Off, an
exception condition has oc-
curred.

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H Connect cable and transceiver

properly. Replace transceiver.

H Terminate network cable properly.
H Set SQE ON on transceiver in

accord with manufacturer’s

instructions.

H 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.