Aggregate Versus Single Channel Sample Rates - National Instruments DAQ X Series User Manual

counter is then loaded with the number of posttrigger samples, in this
example, three.
AI Start Trigger
AI Reference Trigger
AI Sample Clock
Sample Counter
If an AI Reference Trigger (ai/ReferenceTrigger) pulse occurs before the
specified number of pretrigger samples are acquired, the trigger pulse is
ignored. Otherwise, when the AI Reference Trigger pulse occurs, the
sample counter value decrements until the specified number of posttrigger
samples have been acquired. For more information about start and
reference triggers, refer to the
Simultaneous MIO X Series devices feature the following analog input
timing signals:
•
•
•
•
•
•
Signals with an
of Chapter 8, PFI, for more information.

Aggregate versus Single Channel Sample Rates

Simultaneous MIO X Series devices have one ADC per channel so the
single channel maximum sample rate can be achieved on each channel. The
maximum single channel rate is the fastest you can acquire data on the
device from a single or multiple channels and still achieve accurate results.
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Don't Care
3 2 1 0
Figure 4-29. Typical Pretriggered DAQ Sequence
Analog Input Triggering
*
AI Sample Clock Signal
AI Sample Clock Timebase Signal
AI Hold Complete Event Signal
*
AI Start Trigger Signal
*
AI Reference Trigger Signal
*
AI Pause Trigger Signal
*
support digital filtering. Refer to the
4-53
Chapter 4
2 2 2 1 0
section.
PFI Filters
X Series User Manual
Analog Input
section