Block Diagram Of Isolated-Channel Input Circuits - Rockwell Automation AB quality Allen-Bradley 1746-INT4 User Manual

Block Diagram of
Isolated-Channel Input
Circuits
CJCA Sensor
Channel 0
Wire Braid
I/O Chassis
Ground
CJCB Sensor
This illustration shows a block diagram for the analog input circuitry.
Block Diagram
Terminal Block
+
±
Open-circuit
Detection
+
2
±
4
+ 6
± 8
+ 10
±
12
+
14
±
16
+
±
18
I/O Chassis
Ground
Module Circuitry
Analog to
Multiplexer
Digital
Converter
Analog to
Digital
Converter
Analog to
Digital
Converter
Analog to
Multiplexer
Digital
Converter
Publication 1746-UM614B-EN-P - September 2007
Module Overview
Digital Value
8 Hz
Channel 0 &
Digital
CJC Sensor
Filter
Signal
8 Hz
Digital Value
Digital
Channel 1
Filter
8 Hz
Digital Value
Digital
Channel 2
Filter
Digital Value
8 Hz
Channel 3 &
Digital
CJC Sensor
Filter
Signal
15