User manual

Chapter 3 Software Overview
NI-DAQ User Manual for PC Compatibles 3-26 ni.com
When using SCXI analog input modules, use the SCXI functions to set up
the SCXI chassis and modules before using the
AI
,
DAQ
,
SCAN
,and
Lab_ISCAN
functions shown in the following flowcharts.
Building Block 1: Configuration
Five configuration functions are available for creating the first building
block, as shown in Figure 3-4. However, you do not have to call all five
functions every time you start a data acquisition.
Figure 3-4. Buffered Data Acquisition Application Building Block 1, Configuration
NI-DAQ records the device configurations and the default configurations.
(See the
Init_DA_Brds
description in the NI-DAQ Function Reference
Online Help file for device default configurations.) Therefore, if you are
satisfied with the default or the current configurations of your devices,
your configuration building block will be empty, and you can go on to
the next building block, Start.
DAQ_Config
AI_Mux_Config
AI_Configure
DAQ_DB_Config
DAQ_StopTrigger_Config
Alter double-buffered mode.
Alter pretrigger mode.
Alter start trigger, external conversion,
and external scan clock modes.
Add AMUX-64T
Configuration.
Alter low-level board
configuration such as
analog input mode.