Rockwell Automation 1715-OF8I Redundant I/O System User Manual - Manual (Page 280)

280 Rockwell Automation Publication 1715-UM001C-EN-P - March 2014
Appendix C 1715-IB16D Digital Input Module Diagnostics
If 13.6 V is present, the switch is in the on position. A range can be entered into
the threshold value that lets 13.6V be an on condition. We used 19…10.5V as the
range. So, if the voltage drops below 10.5V, it is indeterminate and if it goes above
19V, it is a short circuit.
19
10.5
11
18.5
13.6V Falls
Within The Range