User manual

Chapter 3 Software Overview

NI-DAQ User Manual for PC Compatibles 3-116 ni.com

Figure 3-43. Single-Channel or Software-Scanning Operation Using a

Simultaneous Sample and Hold Module in Multiplexed Mode

Single Analog Input

Ye s

Have you acquired all the data

you need from this module?

Acquire data from the desired

channel on the module using

the

functions.

SCXI_Track_Hold_Control

SCXI_Track_Hold_Setup

Maintain

Hold mode?

Done?

Do you wish to take more data while

the module is in Hold mode?

If desired, change the

selected channel on the module.

Ye s

Put the module back into Track mode

to sense the new input values.

If desired, change the

selected channel on the module.

SCXI_Change_Chan

Configure the desired module

for a single-channel operation.

Set up the chassis for a single-channel

analog input operation on a specified channel

on a specified module.

Latch the analog inputs by

putting the module into Hold mode.

SCXI_Single_Chan_Setup