User manual

Chapter 3 Software Overview
NI-DAQ User Manual for PC Compatibles 3-20 ni.com
Data Acquisition Functions
High-Level Data Acquisition Functions
These high-level data acquisition functions are synchronous calls that
acquire data and return when data acquisition is complete.
Refer to the NI-DAQ Function Reference Online Help file to determine
which functions your device supports.
DAQ_Op
Performs a synchronous, single-channel
data acquisition operation.
DAQ_Op
does
not return until NI-DAQ has acquired all
the data or an acquisition error has
occurred.
DAQ_to_Disk
Performs a synchronous, single-channel
data acquisition operation and saves the
acquired data in a disk file.
DAQ_to_Disk
does not return until NI-DAQ has acquired
and saved all the data or an acquisition
error has occurred.
Lab_ISCAN_Op
Performs a synchronous, multiple-channel
scanned data acquisition operation.
Lab_ISCAN_Op
does not return until
NI-DAQ has acquired all the data or an
acquisition error has occurred.
Lab_ISCAN_to_Disk
Performs a synchronous, multiple-channel
scanned data acquisition operation and
simultaneously saves the acquired data in a
disk file.
Lab_ISCAN_to_Disk
does not
return until NI-DAQ has acquired all the
data and saved all the data or an acquisition
error has occurred.