FP-AI-100 and cFP-AI-100
6
ni.com
Figure 5 shows how to connect a voltage source with an external
power supply to one channel of the [c]FP-AI-100.
Figure 5.
Voltage Source with External Power Supply
Measuring Current with the [c]FP-AI-100
The input ranges for current sources are 0–20, 4–20, and
±
20 mA.
The module reads current flowing into the I
in
terminal as positive
and current flowing out of the terminal as negative. Current flows
into the I
in
terminal, goes through a 100
Ω
resistor, and flows out
from the COM or C terminal.
V
sup
V
in
V
C
To Analog
Input Circuitry
To Next
Channel
1.5 M
Ω
Input
Impedance
COM
[c]FP-AI-100
Powered
Voltage
Transducer
OUT
+
–
External
Power
Supply
+
–
