©
National Instruments Corp.
9
FP-DIO-550 and cFP-DIO-550
Figure 7.
Digital Output Circuit
If the external power supply you are using does not provide one of
the voltages in Table 3, use the following equation to calculate the
actual voltage output.
ActualOutput = V
ext
– (
I
0
×
0.20
Ω)
where
ActualOutput
is the voltage sourced by V
OUT
V
ext
is the voltage provided by the external power supply
I
0
is the current flow through the V
OUT
terminal
Output Pattern Matching
Pattern match mode enables you to configure output channels to
respond directly to specific patterns of states on the input channels.
In MAX, you can configure each output channel to turn on or off
if the input pattern occurs. Also, you can configure each output
channel to latch on or off until it is reset or to update continually
based on the input pattern.
V
OUT
COM
C
[c]FP-DIO-550
Optocoupler
Output
Protection
V
Load
2 A
Max
–
+
10–30 VDC
External
Power
Supply
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