Allen-Bradley 1734-OB2, User Manual, Page: 40 / 221

Rockwell Automation Publication 1734-UM001E-EN-P - July 2013
24 Install POINT I/O Modules
1734-OB8 and 1734-OB8E Module Wiring Diagram
Channel
Number Output Terminal Common Terminal Power
Channel 0 0 Common is
daisychained from
either a 1734 adapter,
1734-FPD module,
1734-EP24DC power
supply, or from a user-
supplied external
terminal block. The 24V DC power for
the module is supplied
by the internal power
bus and originates
from the same adapter,
1734-FPD module, or
1734-EP24DC power
supply as common.
Channel 1 1
Channel 2 2
Channel 3 3
Channel 4 4
Channel 5 5
Channel 6 6
Channel 7 7
Module power is supplied from the internal power bus.
Out 0
Out 1
Out 3
Out 2
Load
Load
Common must be daisychained from a 1734 adapter, 1734-FPD module, 1734-EP24DC
power supply, or from a user-supplied auxiliary terminal block. The 24V DC power to the
module is supplied by the internal power bus and comes from the same 1734 adapter,
1734-FPD module, or 1734-EP24DC power supply as common.
2
6
3
7
4
5
Load
Out 4
Out 5
C
Load
Load
Load
C
Load
Load
Out 6 Out 7
0
1
1734-CTM
1734-OB8, 1734-OB8E
Load
Load
Load
Load
Out 7
Out 0 Out 1
Out 2
Out 3
Out 4
Out 5
Out 6
O
C
C C
C
C
C
C
C
5
1
3
7
0
4
5
6
2
1
3
7
0
4
6
2