Publication 1734-UM001D-EN-P - April 2008
40 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
42015
C
LoadLoad
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
C
CC
C
C
C
C
C
5
1
3
7
0
4
5
6
2
1
3
7
0
4
6
2
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