Rockwell Automation 1746-XXXX SLC 500 4-Channel Analog I/O Modules User Manual - Manual (Page 108)

Publication 1746-UM005B-EN-P - June 2004
D-2 Module Input and Output Circuits
DC-DC
Converter
Primary
A to D
Converter
Rectifier
Filter and
Regulation
SLC
Interface
Circuit
Isolation
Rating
500V dc
Connection
to
SLC 500
System
Connection
to Chassis 0.01
µ
F
–
+
500K
Ω
ANL COM
Circuit for
Current Input
250
Ω
500K
Ω
500K
Ω
–
+
500K
Ω
Circuit for
Voltage Input
500K
Ω
500K
Ω
500K
Ω
–
+
50
Ω
+18V
–
+
10K
Ω
Circuit for
Current Output
Circuit for
Voltage Output
ANL COM
120
Ω
30K
Ω
ANL
COM
A to D
Converter
D to A
Converter
D to A
Converter
Optical
Isolation
Transfomer
Isolation