Rockwell Automation 1746-XXXX SLC 500 32-Channel Digital I/O Modules Installation Instructions - Manual (Page 16)

16 SLC 500™ 32-Channel Digital I/O Modules
Publication 1746-IN028A-EN-P - October 2003
Wiring Diagrams
In this document, the wiring diagrams include both
decimal and octal numbers. To wire your module when
used in an SLC system, use the decimal numbers. To
wire your module when used in a PLC system, use the
octal numbers.
Input Module 1746-IB32 (24V dc Sinking)
(1) See decimal and octal coding information at the top of the page.
(2) The dc Com pins on the 1746-IB32 input module are isolated between the four groups and the two com pins in each group
are connected internally. To maintain group isolation provided by 32-point I/O modules, use a 1492 terminal block that
provides group isolation. Consult 1492 documentation or your Allen-Bradley Sales Office for additional information.
IN 14
16
For PLC
(octal)
For SLC
(decimal)
IN 0
0
IN 1
1
IN 2
2
IN 3
3
IN 4
4
IN 5
5
IN 6
6
IN 7
7
IN 8
10
IN 9
11
IN 10
12
IN 11
13
IN 12
14
IN 13
15
IN 14
16
IN 15
17
IN 16
IN 17
IN 18
IN 19
IN 20
IN 21
IN 22
IN 23
IN 24
IN 25
IN 26
IN 27
IN 28
IN 29
IN 30
IN 31
COM 1
COM 1 COM 3
COM 3
COM 2
COM 2
COM 4
COM 4
0
1
2
3
4
5
6
7
10
11
12
13
14
15
16
17
SLC
PLC
dc Com 1
(2)
dc Com 1
(2)
+V dc 1
Wire
Group 1 Wire
Group 3
dc Com 3
(2)
dc Com 3
(2)
+V dc 3
dc Com 2
(2)
dc Com 2
(2)
+V dc 2
dc Com 4
(2)
dc Com 4
(2)
+V dc 4
(1)
Connector
Key
Wire
Group 2 Wire
Group 4