Rockwell Automation 1746-FIO4V SLC 500 Fast Analog I/O/ User Manual - Manual (Page 87)

87 Publication 1746-UM009B-EN-P - September 2007
Appendix
C
Module Input and Output Circuits
These wiring diagrams show the input circuit, voltage output, and
current output for the fast analog modules.
Input Circuit for 1746-FIO4V and 1746-FIO4I Modules
Voltage Output Circuit for 1746-FIO4V Modules
>
>
>
>
IN –
IN +
ANL
COM
S1, S2
250 Ω
500K
500K
33pF
500K
–
+
33pF
500K
Filter A to D
Switches S1 and S2 control
whether the input circuit is for
current (closed) or voltage (open).
>
>
>
Positive Voltage Supply
0.022 µF
0.022 µF
1 µF
30K
120
OUT
ANL
COM
Negative Voltage Supply
R1
R2
from
DAC
–
+