User manual

Chapter 3 Software Overview
NI-DAQ User Manual for PC Compatibles 3-112 ni.com
SCXI Application Tips
There are three categories of SCXI applications—analog input
applications, analog output applications, and digital applications.
Figure 3-41 shows the basic structure of an SCXI application.
Figure 3-41. General SCXIbus Application
The figures in the following sections show the detailed call sequences
for different types of SCXI operations. In effect, each of the remaining
flowcharts in this section is an enlargement of the Analog Input Operations,
the Analog Output Operations, or the Digital Operations node in
Figure 3-41. Please refer to the function descriptions in the NI-DAQ
Function Reference Online Help file for detailed information about
each function used in the flowcharts.
You can divide the SCXI analog input applications further into two
categories—single-channel applications and channel-scanning
Load SCXI configuration that was entered in the
Measurement & Automation Explorer and initialize
software defaults.
SCXI_Load_Config
SCXI_Reset
SCXI_Reset
Analog Input Operations Digital Operations
Done?
Ye s
No
Reset the chassis and modules to
their default hardware settings.
Reset the chassis and modules to
their default hardware settings.
Analog Output Operations