Allen-Bradley PLC-5 Manual de usuario Pagina 97

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1785-UM022B-EN-P - February 2002
Monitoring and Troubleshooting Your ControlNet System 5-5
Using the DH+/RIO
Status Indicators
Indicator Color Channel Mode Description Probable Cause Recommended Action
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
B
or
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