Chapter 5
Analog Output
X Series User Manual
5-8
ni.com
•
PXI_STAR
•
PXIe-DSTAR<A,B>
•
Co
u
nter
n
Internal O
u
tp
u
t
•
Change Detection Event
•
DI Start Trigger (di/StartTrigger)
•
DI Reference Trigger (di/ReferenceTrigger)
•
DO Start Trigger (do/StartTrigger)
The so
u
rce also can be one of several internal signals on yo
u
r DAQ device.
Refer to
Device Routing in MAX
in the
NI-DAQmx Help
or the
LabVIEW
Help
for more information.
Yo
u
also can specify whether the waveform generation begins on the rising
edge or falling edge of AO Start Trigger.
Using an Analog Source
When yo
u
u
se an analog trigger so
u
rce, the waveform generation begins on
the first rising edge of the Analog Comparison Event signal. Refer to the
Triggering with an Analog Source
section of Chapter 11,
Triggering
, for
more information.
Routing AO Start Trigger Signal to an Output
Terminal
Yo
u
can ro
u
te AO Start Trigger o
u
t to any PFI <0..15>, RTSI <0..7>, or
PXIe-DSTARC terminal.
The o
u
tp
u
t is an active high p
u
lse. PFI terminals are config
u
red as inp
u
ts
by defa
u
lt.
AO Pause Trigger Signal
Use the AO Pa
u
se Trigger (ao/Pa
u
seTrigger) signal to mask off samples in
a DAQ seq
u
ence. That is, when AO Pa
u
se Trigger is active, no samples
occ
u
r.
AO Pa
u
se Trigger does not stop a sample that is in progress. The pa
u
se does
not take effect
u
ntil the beginning of the next sample.
When yo
u
generate analog o
u
tp
u
t signals, the generation pa
u
ses as soon as
the pa
u
se trigger is asserted. If the so
u
rce of yo
u
r sample clock is the
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