FP-AI-110 and cFP-AI-110 6 ni.com
Figure5 shows how to connect a voltage source with an external
power supply to one channel of the [c]FP-AI-110.
Figure 5. Voltage Source with External PowerSupply
Measuring Current with the [c]FP-AI-110
The input ranges for current sources are 0–20, 4–20, and ±20 mA.
The module reads current flowing into the IINterminal as positive
and current flowing out of the terminal as negative. Current flows
into the IINterminal, goes through a 100 Ω resistor, and flows out
from the COM or Cterminal.
Figure6 shows how to connect a current source without an external
power supply to one channel of the [c]FP-AI-110.
VSUP
VIN
VC
To Analog
Input Circuitry
To Next Channel
COM
[c]FP-AI-110
IIN
Powered
Voltage
Transducer
OUT
+
–
+
–
10–30 VDC
External
Power Supply
(Optional)
2 A
Max
1 A
Max