©
National Instruments Corp.
11
FP-TB-10 Operating Instructions
Analog Current Output Modules
(FP-AO-C020, FP-AO-C420, and FP-AO-C024)
The FP-AO-C020, FP-AO-C420, and FP-AO-C024 are
dual-channel current output modules that provide 12-bit-resolution
outputs. All three modules have internal loop power supplies that
can drive loads of up to 500
Ω
. Wire your field devices so that
current flows out of the “a” terminals and returns through the “b”
terminals.
Note
The “a” terminals serve as a common reference
point for the two channels, so if your application requires
channel-to-channel isolation, use only one channel of
each module.
Figure 12.
Connecting an Analog Current Output Module to a Load
1a
1b
Load
(500
Ω
max)
FP-AO-C
xxx
Current
flow
2a
2b
