Rockwell Automation 1746-XXXX SLC 500 4-Channel Analog I/O Modules User Manual - Manual (Page 107)

1 Publication 1746-UM005B-EN-P - June 2004
Appendix
D
Module Input and Output Circuits
Input Circuit for 1746-NI4, -NIO4I, and -NIO4V
Modules
IN + >
–
+
250
Ω
380K (NI4 Series B module)
Filter > A to D
Voltage Output Circuit for 1746-NIO4V
Modules
–
+
10K
> VOL TAGE
OUT
> ANL COM
Positive Voltage Supply
Negative Voltage Supply
1
µ
F
120
30K
0.022
µ
F
from >
DAC
Current Output Circuit for 1746-NIO4I
Modules
–
+
Amp
> CURRENT
OUT
S1, S2
Switches S1 and S2 control
whether the input circuit is for
current (closed) or voltage (open).
from >
DAC
.001
µ
F
.001
µ
F
IN – >
1
µ
F
0.1
µ
F
> ANL COM
ANL
COM
>
500K (NI4 Series A module)
380K (NI4 Series B module)
500K (NI4 Series A module)
380K (NI4 Series B module)
500K (NI4 Series A module)