Manual

156 Publication 1756-UM009C-EN-P - December 2010
Chapter 7 Non-isolated Analog Output Modules (1756-OF4 and 1756-OF8)
Field-side Circuit Diagrams
The diagrams show field-side circuitry for the 1756-OF4
and 1756-OF8 modules.
1756-OF4 and 1756-OF8 Output Circuit
43511
RTN
+ 20V
10 kΩ
I out - X
D/A
converter
Current
Amplifier
0.047 μF
Multi-
plexer
RTN
RTN
RTN
10 kΩ
Open Wire
Detector
All returns (RTN)
are tied together
on the module.
V out - X
0.047 μF
11 kΩ
Voltage
Output
Current
Output
50 Ω