Chapter 2 Installing the Hardware and Software
FP-2000/2010/2015 User Manual 2-14 ni.com
for power requirement details. You can power a module by connecting
the V and C inputs on its terminal base to a separate power supply,
connecting the V and C outputs of a neighboring terminal base or
network module, or using a combination of both methods. If you want
to power field I/O devices from a terminal base, supply power to the
terminal base, and then connect the terminal base V and C output
terminals to the field device.
Figure 2-2 shows an example of a FieldPoint system correctly wired to
power sources.
Figure 2-2. FieldPoint Bank with Power Connections
Calculating Power for a FieldPoint Bank
The power requirements for a FieldPoint bank that uses an FP-20xx
network module are calculated as follows:
Power =4.5W+1.1*∑ (I/O Module Consumption)
This is the amount of power the FP-20xx network module consumes from
the power supply to power itself and the I/O modules. It does not include
any power consumed by devices that you wire to the terminal bases.
15
16 V
31 32 C
V
1
32
C
17
18
CAUTION: Cascading
power defeats isolation.
Shades of gray indicate
different voltage potentials.
FP-TC-120FP-RLY-420FP-AO-200FP-AI-100FP-2000
Separate Power Supply
(Recommended)
Cascaded Power
(Reduces Isolation)
No External
Power Required
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