User manual

Chapter 3 Software Overview
© National Instruments Corporation 3-33 NI-DAQ User Manual for PC Compatibles
NI-DAQ includes three functions for multirate scanning:
• SCAN_Sequence_Setup
• SCAN_Sequence_Retrieve
• SCAN_Sequence_Demux
Use
SCAN_Sequence_Setup
to identify the channels to scan, their
gains, and their scan rate divisors. After the data is acquired, use
SCAN_Sequence_Retrieve
and
SCAN_Sequence_Demux
to arrange
the data into a more convenient format.
Figure 3-11 shows how to use the multirate scanning functions in
conjunction with other NI-DAQ functions.