Owner manual

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

adap

ter modules are

present and not

faulted.

None - this is normal

opera

tion.

DH+ Operating. None - this is normal

opera

tion.

Green

lashing

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, rep

lace module.

Red

lashing

RIO scanner Faulted adapters

detected.

• Check cables.

• Check power at other

chassis.

DH+ Duplicate node

detected

Check node address.