20
ControlLogix-XT Data Highway Plus-Remote I/O Interface Module
Publication
1756-IN638A-EN-P - March 2009
Power Supply Status
If the alphanumeric indicator on the 1756-DHRIO module does not
cycle through alphanumeric messages on powerup, use this table,
along with the sections Alphanumeric Display Codes (
page 21
) and
Status Indicators (
page 24
) to determine a cause.
Configure Your 1756-DHRIOXT Module
After installing your 1756-DHRIOXT module, you must configure it.
The 1756-DHRIOXT module is configured using the same methods
and considerations as the traditional 1756-DHRIO module. For more
information about configuring and using the 1756-DHRIOXT and
1756-DHRIO modules, refer to the ControlLogix Data Highway
Plus-Remote I/O Communication Interface Module User Manual,
publication
1756-UM514
.
POWER Indicator State
Means
Recommended Actions
Off
Not operating
•
Turn power switch ON.
•
Check power wiring connections.
•
Check fuse.
On/Solid green
Operating
None - this is normal operation.
