Using A Daqmx Channel Property Node In Labview - National Instruments Module SCXI-1125 User Manual

Flowchart Step
Display Data
Continue Sampling
Stop Measurement
Clear Task
Note If you do not use Active Channels, the properties are set on all of the channels in
the task.
© National Instruments Corporation
Table 5-4. Programming a Task in LabVIEW (Continued)
You can use graphical tools such as charts, gauges, and graphs
to display your data. Some display tools are located on the
Controls»All Controls»Numeric»Numeric Indicators
subpalette and Controls»All Controls»Graph subpalette.
For continuous sampling, use a While Loop. If you are using
hardware timing, you also need to set the
sample mode to Continuous Samples. To do this, right-click the
terminal of the
click Create»Constant. Click the box that appears and select
Continuous Samples.
DAQmx Stop Task.vi
automatically stops the task.)
DAQmx Clear Task.vi

Using a DAQmx Channel Property Node in LabVIEW

You can use property nodes in LabVIEW to manually configure the
channels. To create a LabVIEW property node, complete the following
steps:
1. Launch LabVIEW.
2. Create the property node in a new VI or in an existing VI.
3. Open the block diagram view.
4. From the Functions toolbox, select Measurement I/O»
DAQmx - Data Acquisition, and select DAQmx Channel Property
Node.
5. Use the ActiveChans box to specify exactly what channel(s) you want
to configure. If you want to configure several channels with different
properties, separate the lists of properties with another ActiveChans
box and assign the appropriate channel to each list of properties.
6. Right-click ActiveChans, and select Add Element. Left-click the new
ActiveChans box. Navigate through the menus, and select the
property you wish to define.
VI or Program Step
DAQmx Timing.vi
(This VI is optional, clearing the task
5-11
Chapter 5 Using the SCXI-1125
DAQmx Timing.vi
labeled sample mode and
SCXI-1125 User Manual