User manual

Chapter 3 Software Overview

Analog Output Function Group

The Analog Output function group contains two sets of functions—the

Analog Output (

) functions, which perform single D/A conversions, and

the Waveform (

WFM

) functions, which perform buffered D/A conversions.

Note

Use the SCXI functions described later in this chapter for the SCXI-1124 analog

output module.

One-Shot Analog Output Functions

Use the Analog Output functions to perform single D/A conversions with

analog output devices.

Refer to the NI-DAQ Function Reference Online Help file to determine

which functions your device supports.

AO_Change_Parameter

Selects a specific parameter setting for the

analog output section or analog output

channel. These parameters might be data

transfer conditions, filter settings, or

similar device settings.

AO_Configure

Records the output range and polarity

selected for each analog output channel by

the jumper settings on the device and

indicates the update mode of the DACs.

Use this function if you have changed the

jumper settings affecting analog output

range and polarity from their factory

settings. Also use this function to change

the analog output settings on devices

without jumpers.

AO_Update

Updates analog output channels on the

specified device to new voltage values

when the later internal update mode is

enabled by a previous call to

AO_Configure