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Chapter
One-Stop Single-Point
Generation
11
In the preceding chapter, you learned the appropriate time to use
single-point updates. This chapter shows you which VIs to use in
LabVIEW to perform these updates.
Single-Immediate Updates
The most basic way to program single-point updates in LabVIEW is by
using the Easy Analog Output VI, AO Update Channels. Figure 11-1
shows a diagram of a VI that writes voltages to one or more output
channels on the output data acquisition (DAQ) device.
Figure 11-1. Single Immediate Update Using the AO Update Channels VI
Notice that an array of voltages is passed as an input to the VI. The first
element in the array corresponds to the first entry in the channel string,
and the second array element corresponds to the second channel entry.
For more information on channel string syntax, refer to Chapter 3,
Basic LabVIEW Data Acquisition Concepts. Remember that Easy VIs
already have built-in error handling.
If you want more control over the limit settings for each channel, you
can also program a single-point update using the Intermediate Analog
 National Instruments Corporation
11-1
LabVIEW Data Acquisition Basics Manual