Manual

Rockwell Automation Publication 1756-UM007C-EN-P - November 2011
Appendix A
1756-HSC Status Indicators
Introduction
Each 1756-HSC module has indicators that show input and output status.
Status indicators are located on the front of the module.
Status Indicators
The 1756-HSC module uses the following status indicators.
The table describes what the status indicators represent, and corrective
measures.
Status Indicator Display Means Action Taken
Input
(A, B, Z)
Off Input turned off
Input not currently used
Wire disconnected
If you need to use
the input, check
wiring connections
On/Yellow Input turned on None
Output
(0, 1, 2, 3)
Off Output turned off
Output not currently
used
If you need to use
the output, check
input wiring
connections and
your ladder program
On/Yellow Output turned on None