Rockwell-automation 1785-Lx0E,D178510.5 QUICK START ETHERNET PLC-9 Manual de usuario Pagina 20

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Publication 1785-10.5 - November 1998
4-2 Troubleshoot the Processor System
Troubleshoot the Processor Communication Channels
FORCE Amber
(steady)
SFC and/or I/O forces
enabled
Normal operation No action required
Amber
(blinking)
SFC and/or I/O forces
present but not
enabled
Off SFC and/or I/O forces
not present
COMM Off No transmission on
channel 0
Normal operation if
channel is not being
used
Green
(blinking)
Transmission on
channel 0
Normal operation if
channel is being used
Indicator Color Description Probable Cause Recommended Action
Indicator Color Channel Mode Description Probable Cause Recommended Action
A or B Green
(steady)
Remote I/O Scanner Active Remote I/O link, all
adapter modules are present
and not faulted
Normal operation No action required
Remote I/O Adapter Communicating with scanner
DH+ Processor is transmitting or
receiving on DH+ link
Green
(blinking
rapidly or
slowly)
Remote I/O Scanner At least one adapter is
faulted or has failed
Power off at
remote rack
Cable broken
Restore power to the
rack
Repair cable
DH+ No other nodes on network
Red
(steady)
Remote I/O Scanner
Remote I/O Adapter
DH+
Hardware fault Hardware error Turn power off, then
on.
Check that the
software
configurations match
the hardware set-up.
Replace the processor.
Red
(blinking
rapidly or
slowly)
Remote I/O Scanner Faulted adapters detected Cable not
connected or is
broken
Power off at
remote racks
Repair cable
Restore power to racks
DH+ Bad communication on DH+ Duplicate node
detected
Correct station address
Off Remote I/O Scanner
Remote I/O Adapter
DH+
Channel offline Channel is not
being used
Place channel online if
needed
A
AB
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