User manual
Publication CIG-WD001B-EN-P - May 2005
1746 I/O Modules 5-23
OUT 0
0
OUT 1
1
OUT 2
2
OUT 3
3
OUT 4
4
OUT 5
5
OUT 6
6
OUT 7
7
OUT 8
10
OUT 9
11
OUT 10
12
OUT 1 1
13
OUT 12
14
OUT 13
15
OUT 14
16
OUT 15
17
OUT 16
OUT 17
OUT 18
OUT 19
OUT 20
OUT 21
OUT 22
OUT 23
OUT 24
OUT 25
OUT 26
OUT 27
OUT 28
OUT 29
OUT 30
OUT 31
VDC 1
0
1
2
3
4
5
6
7
10
11
12
13
14
15
16
17
VDC 1
VDC 2
VDC 2
COM 2
COM 2COM 1
COM 1
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
Wire
Group 1
Wire
Group 2
+V dc 2
(2)(3)
+V dc 2
(2)(3)
+V dc 1
(2)(3)
+V dc 1
(2)(3)
Connector
Key
dc Com 2
(2)
dc Com 2
(2)
dc Com 1
(2)
dc Com 1
(2)
PLC (octal)
SLC (decimal)
5 to 50V dc Transistor Output Sourcing
1. The V dc and dc Com pins on the 1746-OB32 and 1746-OB32E output module are isolated
between the two groups and the two V dc and two dc Com pins in each group are connected internally.
2. Both V dc pins must be connected to the dc power source if current for a common group
is expected to exceed 2 amps. To maintain group isolation provided by 32-point I/O modules,
use a 1492 terminal block that provides group isolation.
OUT 0
0
OUT 1
1
OUT 2
2
OUT 3
3
OUT 4
4
OUT 5
5
OUT 6
6
OUT 7
7
OUT 8
10
OUT 9
11
OUT 10
12
OUT 1 1
13
OUT 12
14
OUT 13
15
OUT 14
16
OUT 15
17
OUT 16
OUT 17
OUT 18
OUT 19
OUT 20
OUT 21
OUT 22
OUT 23
OUT 24
OUT 25
OUT 26
OUT 27
OUT 28
OUT 29
OUT 30
OUT 31
VDC 1
0
1
2
3
4
5
6
7
10
11
12
13
14
15
16
17
VDC 1
VDC 2
VDC 2
COM 2
COM 2COM 1
COM 1
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
CR
Wire
Group 1
Wire
Group 2
+V dc 2
(2)(3)
+V dc 2
(2)(3)
+V dc 1
(2)(3)
+V dc 1
(2)(3)
Connector
Key
dc Com 2
(2)
dc Com 2
(2)
dc Com 1
(2)
dc Com 1
(2)
PLC (octal)
SLC (decimal)
10 to 30V dc Electronically Protected Sourcing
1. The V dc and dc Com pins on the 1746-OB32 and 1746-OB32E output module are isolated
between the two groups and the two V dc and two dc Com pins in each group are connected internally.
2. Both V dc pins must be connected to the dc power source if current for a common group
is expected to exceed 2 amps. To maintain group isolation provided by 32-point I/O modules,
use a 1492 terminal block that provides group isolation.
1746-OB32 1746-OB32E
-DC
+DC
10-50V dc
VDC
OUT 0
OUT 1
OUT 2
OUT 3
OUT 4
OUT 5
OUT 6
OUT 7
DC
COM
CR
CR
CR
CR
10 to 50V dc Transistor Output-Sourcing
VDC 0
OUT 0
DC
COM 0
VDC 2
OUT 2
DC
COM 2
VDC 4
OUT 4
DC
COM 4
VDC 1
+DC
-DC
+DC
-DC
+DC
-DC
+DC
-DC
+DC
-DC
+DC
-DC
10-30V dc
10-30V dc
10-30V dc
10-30V dc
10-30V dc
10-30V dc
OUT 1
DC
COM 1
VDC 3
OUT 3
DC
COM 3
VDC 5
OUT 5
DC
COM 5
CR
CR
CR
10 to 30V dc Transistor Output-Sourcing
Channel-to-Channel Isolated (electronically protected)
1746-OB81746-OB6EI