Owner manual

24 ControlLogix-XT Data Highway Plus-Remote I/O Interface Module
Publication
1756-IN638A-EN-P - March 2009
Status Indicators
Three status indicators on the module provide information about
your module and the status of each channel. The following tables
outline the indicator condition and the corresponding status, and
explain what each condition means.
OK Status Indicator
State Description Recommended Actions
Off The module is not
operating.
• Apply chassis power.
• Verify module is completely
inserted into chassis and
backplane.
Flashing green The module is
operational, bu
t either:
– is not routing
me
ssages
– the controller is not
transferring I/
O.
None if no messages are actively
bein
g routed through the module and
no controller transferring I/O.
To route messages or transfer I/O, use
mo
dule default configuration or
configure module.
Green Operational and is
routing me
ssages.
None - this is normal operation.
Red, then off Performing a self-test. None - this is normal operation.
Red In major fault Reboot module. If red reoccurs, then
replace module.
Flashing red In major fault or
c
onfiguration fault.
Check alphanumeric indicator and
take action described in alphanumeric
display message table on page 21.