User manual
Publication CIG-WD001B-EN-P - May 2005
1746 I/O Modules 5-11
PLC (octal)
SLC (decimal)
IN 1
IN 0
IN 2
IN 3
IN 4
IN 5
IN 6
IN 7
IN 9
IN 10
IN 1 1
IN 12
IN 13
IN 14
IN 15
AC COM
AC COM
0
1
2
4
6
IN 8
10
12
14
16
11
13
15
17
3
5
7
L1
L2
100/120V ac
100/120V ac
COMMONS
CONNECTED
INTERNALLY
L1
100/120V ac
NOT
USED
NOT
USED
NOT
USED
NOT
USED
IN 0
IN 1
IN 2
IN 3
AC COM
L2
100/120V ac
L1
L2
100/120V ac
IN 0
IN 1
IN 2
IN 3
IN 4
IN 5
IN 6
IN 7
AC COM
AC COM
100/120V ac
COMMONS
CONNECTED
INTERNALLY
1746-IA41746-IA16 1746-IA8
-DC
+DC
IN 1
IN 0
IN 2
IN 3
IN 4
IN 5
IN 6
IN 7
IN 9
IN 1 1
IN 12
IN 13
IN 14
IN 15
DC
COM
DC COM
0
1
2
4
6
IN 8
10
14
11
13
15
17
3
5
7
24V dc
6
IN 10
12
16
24V dc Sinking
COMMONS CONNECTED
INTERNALLY
PLC (octal)
SLC (decimal)
(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 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 1 1
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
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
PLC (octal)
SLC (decimal)
24V dc sinking
1746-IB16 1746-IB32