Allen-Bradley 1756-IR12 - 1756-OF8 I Diagrams

Rockwell Automation Publication 1756-UM540E-EN-P - December 2017 93
1756-OF8I Isolated Analog Output Module Chapter 5
1756-OF8I Diagrams
Figure 26 - 1756-OF8I Module Block Diagram
RIUP
Circuit
DSP
Field Side Backplane Side
1
7
5
6
B
A
C
K
P
L
A
N
E
Channels 1…6 (not shown)
Backplane
ASIC
DC-DC
Shutdown
Circuit
System
+5V
Isolator
DC-DC
Converter
Vref
D/A Converter and
Output Stage
Channel 0
Channel 7
OUT_0/V
OUT_0/I
RTN_0
Isolator
DC-DC
Converter
Vref
D/A Converter and
Output Stage
Isolated Power
Nonvolatile
Memory
Status
Indicators
OUT_7/V
OUT_7/I
RTN_7
Isolated Power
Represents Channel Isolation