Rockwell Automation 1746-XXXX SLC 500 32-Channel Digital I/O Modules Installation Instructions - Manual (Page 14)

14 SLC 500™ 32-Channel Digital I/O Modules
Publication 1746-IN028A-EN-P - October 2003
The stick-on labels of the 1492 Interface Module are abbreviated as follows: +V1 =
V dc 1, +V2 = V dc 2, CM1 = Com 1, etc.
Refer to page 11 for information on wiring 32-point I/O modules and how control
devices interface with 32-point I/O modules.
Terminal Block Labels
Bottom Terminal Block Top Terminal Block
1746-OB32
1746-OV32 1746-IV32 1746-IB32 1746-OB32
1746-OV32 1746-IV32 1746-IB32
SLC PLC SLC PLC SLC PLC SLC PLC SLC PLC SLC PLC
+V1
+V1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CM1
CM1 +V1
+V1
0
1
2
3
4
5
6
7
10
11
12
13
14
15
16
17
CM1
CM1 +V1
+V1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
+V2
+V2 +V1
+V1
0
1
2
3
4
5
6
7
10
11
12
13
14
15
16
17
+V2
+V2 CM1
CM1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
CM2
CM2 CM1
CM1
0
1
2
3
4
5
6
7
10
11
12
13
14
15
16
17
CM2
CM2 +V2
+V2
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
CM2
CM2 +V2
+V2
0
1
2
3
4
5
6
7
10
11
12
13
14
15
16
17
CM2
CM2 +V3
+V3
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
+V4
+V4 +V3
+V3
0
1
2
3
4
5
6
7
10
11
12
13
14
15
16
17
+V4
+V4 CM3
CM3
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
CM4
CM4 CM3
CM3
0
1
2
3
4
5
6
7
10
11
12
13
14
15
16
17
CM4
CM4
TIP
If you decide to build your cable using another 1746-N3 to
terminate the cable at the 1492 Interface Module end, wire it in
the following manner: Pin 1 to Pin 1, Pin 2 to Pin 2, Pin 3 to
Pin 3, etc.