Rockwell Automation 1762-IQ16 DC Input Module - Manual (Page 14)

14 MicroLogix 1762-IQ16 DC Input Module
Publication 1762-IN010C-EN-P - June 2013
I/O Memory Mapping
Input Data File
For each input module, the input data file contains the current state of the field input points. Bit
positions 0…15 correspond to input terminals 0…15.
r = read only
1762 Expansion I/O Addressing
The addressing scheme for 1762 Expansion I/O is shown below.
Wo
rd
Bit Position
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
0 r r r r r r r r r r r r r r r r
I1:x.0/0
Slot number (1)
Data file
File Type
Input (I)
Slot delimiter
Word delimiter
Bit delimiter
Bit (0...15)
Word (always 0 for this module)
(1) I/O located on the controller (embedded I/O) is slot 0. I/O added to the controller (expansion I/O) begins with slot 1.