©
National Instruments Corp.
3
FP-DIO-550 and cFP-DIO-550
Figure 2.
Installing the cFP-DIO-550
Wiring the [c]FP-DIO-550
The FP-TB-
x
terminal base has connections for each FP-DIO-550
input and output channel, and for an external power supply to
power field devices. The cFP-CB-
x
connector block provides the
same connections for the cFP-DIO-550.
Each input channel has two input terminals, IN+ and IN–. Each
output channel has one output terminal, V
OUT
, and one COM
terminal. All eight output channels are referenced to the COM
terminals. The C and COM terminals are all internally connected.
Connect the positive lead of the external power supply to both
V terminals and the negative lead to both C terminals. Ensure that
the current through each V terminal can never exceed 2 A.
1
cFP I/O Module
2
Captive Screws
3
cFP Controller Module
4
Screw Holes
5
cFP Backplane
2
2
1
3
5
4
4
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