User manual

Chapter 3 Software Overview
© National Instruments Corporation 3-29 NI-DAQ User Manual for PC Compatibles
Figure 3-7. Buffered Data Acquisition Application Building Block 2, Start, for the
516 Devices, DAQCard-500/700, Lab and 1200 Devices, and LPM Devices
When you have the asynchronous start calls in your building block 2,
the next building block, Checking, is very useful for determining the
status of the ongoing data acquisition process.
DAQ_Rate
Convert sampling rate to
sample timebase and
sample interval.
Lab_ISCAN_Start
Sample multiple
channels?
No
Ye s
Initiate multiple-channel
data acquisition.
Initiate single-channel
data acquisition.
DAQ_Start