National Instruments Welding System 321645c-01 Manual De Usuario

Chapter 2

Function Reference — Lab_ISCAN_Check

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 National Instruments Corporation

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NI-DAQ FRM for PC Compatibles

Checks whether the current multiple-channel scanned data acquisition begun by the 

Lab_ISCAN_Start

 function is complete and returns the status, the number of samples 

acquired to that point, and the scanning order of the channels in the data array 
(DAQCard-500/700 and 516, Lab and 1200 Series, and LPM devices only).

daqStopped returns an indication of whether the data acquisition has completed. 

1:

The data acquisition operation has stopped. Either NI-DAQ has acquired all 
the samples or an error has occurred.

0:

The data acquisition operation is not yet complete.

retrieved indicates the progress of an acquisition. The meaning of retrieved depends on 
whether you have enabled pretrigger mode (see 

DAQ_StopTrigger_Config

).

If pretrigger mode is disabled, retrieved returns the number of samples collected by the 
acquisition at the time of the call to 

Lab_ISCAN_Check

. The value of retrieved increases 

until it equals the total number of samples to be acquired, at which time the acquisition 
terminates.

i16

assigned by configuration utility

i16

indicates whether the data acquisition has 
completed

u32

number of samples collected by the acquisition

[i16]

the scan channel order