Rockwell Automation 1756-DHRIOXT ControlLogix-XT Data Highway Plus-Remote I/O Communication Interface Module - Manual (Page 24)

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, but either:
– is not routing
messages
– the controller is not
transferring I/O.
None if no messages are actively
being routed through the module and
no controller transferring I/O.
To route messages or transfer I/O, use
module default configuration or
configure module.
Green Operational and is
routing messages. 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
configuration fault. Check alphanumeric indicator and
take action described in alphanumeric
display message table on page 21.