Rockwell Automation 1756-DHRIOXT ControlLogix-XT Data Highway Plus-Remote I/O Communication Interface Module User Manual
Page 25
ControlLogix-XT Data Highway Plus-Remote I/O Interface Module 25
Publication
1756-IN638A-EN-P - March 2009
Channel A and B Indicators
State
Channel Mode
Description
Recommended Actions
Off
All
Not on line.
Place channel on line.
Green
RIO scanner
Active RIO link. All
adapter modules are
present and not
faulted.
None - this is normal
operation.
DH+
Operating.
None - this is normal
operation.
Green
flashing
RIO scanner
One or more nodes
faulted or failed.
Check power at other racks.
DH+
No other node on the
network.
Check cables.
Red
All
Hardware fault.
Reboot module. If red
reoccurs, replace module.
Red
flashing
RIO scanner
Faulted adapters
detected.
•
Check cables.
•
Check power at other
chassis.
DH+
Duplicate node
detected.
Check node address.
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