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Chapter 2

Function Reference — DAQ_Config

NI-DAQ FRM for PC Compatibles

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 National Instruments Corporation

Stores configuration information for subsequent DAQ operations.

startTrig indicates whether the trigger to initiate DAQ sequences is generated externally.

0:

Generate software trigger to start DAQ sequence (the default).

1:

Wait for external trigger pulse at STARTTRIG of the MIO16/16D, or at 
EXTTRIG* of the AT-MIO-16F-5, AT-MIO-64F-5, and AT-MIO-16X, or at 
EXTTRIG of the Lab and 1200 Series devices to initiate DAQ sequence (not 
valid for 516 and LPM devices and the DAQCard-500/700).

extConv indicates whether the timing of A/D conversions during the DAQ sequence is 
controlled externally or internally with the sample-interval and/or scan-interval clocks.

0:

Use onboard clock to control data acquisition sample-interval and scan-interval 
timing (the default).

1:

Allow external clock to control sample-interval timing.

2:

Allow external clock to control scan-interval timing (MIO, AI, and Lab and 1200 
Series devices only).

3:

Allow external control of sample-interval timing and scan-interval timing 
(AT-MIO-16F-5, AT-MIO-64F-5, AT-MIO-16X, and Lab and 1200 Series 
devices only).

If you are using an E Series or DSA device, see the 

Select_Signal

 function for information 

about the external timing signals.

i16

assigned by configuration utility

i16

whether the trigger to initiate data acquisition is 
generated externally

i16

selects A/D conversion clock source