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Measurement Computing ADAC-LVi User Manual

Page 42

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Chapter 2 Utility Analog Input VIs

ADAC LabVIEW VI

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Trigger Mode (0:disabled) Trigger Mode is a numeric value that sets the
hardware trigger operation mode. The available options are:

0:DISABLED All triggering is disabled.

1:ABOUT_TRIG Collect (N) data points before and (N) data points after a
trigger. Supported by A/D's ABOUT TRIGGER capabilities.

2:POST_TRIG Collect (N) data points after a trigger. supported by A/D's with
DMA, Interrupt or FIFO capabilities.

3:PRE_TRIG Collect (N) data points before a trigger. Supported by A/D's
ABOUT TRIGGER capabilities.

4:SCAN_TRIG Collect 1 data point for each channel after each trigger.
Supported by A/D's SCAN TRIGGER capabilities.

The default Trigger Mode is 0:DISABLED

Trigger Source (0:disabled) Trigger Source is a numeric value that sets the
hardware triggering source. The available options are:

0:DISABLED All triggering sources are disabled.

1:EXTERNAL Trigger the acquisition from an external event. Supported by
A/D's with DMA, Interrupt or FIFO capabilities.

2:CTR1 On-board counter 1 triggers the acquisition. Supported by A/D's with
DMA, Interrupt or FIFO capabilities.

3:CTR2 On-board counter 2 triggers the acquisition. Supported by A/D's with
DMA, Interrupt or FIFO capabilities.

The default Trigger Source is 0:DISABLED

Trigger Source Signal (0:falling) Trigger Source Signal is a numeric value that
sets the hardware triggering source signal. The available options are:

0:FALLING_EDGE Trigger on the falling edge of an event.
1:RISING_EDGE Trigger on the rising edge of an event.

The default Trigger Source Signal is 0:FALLING_EDGE