Owner manual

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.