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Chapter 5
Using the SCXI-1502
©
National Instruments Corporation
5-11
SCXI-1502 User Manual
LabWindows/CVI
LabWindows/CVI works with the
DAQ Assistant
in MAX to generate
code for an voltage measurement task. You can then use the appropriate
function call to modify the task. To create a configurable channel or task in
LabWindows/CVI, complete the following steps:
1.
Launch LabWindows/CVI.
2.
Open a new or existing project.
3.
From the menu bar, select
Tools»Create/Edit DAQmx Tasks
.
4.
Choose
Create New Task In MAX
or
Create New Task In Project
to load the DAQ Assistant.
5.
The DAQ Assistant creates the code for the task based on the
parameters you define in MAX and the device defaults. To change
a property of the channel programmatically, use the
DAQmxSetChanAttribute
function.
Note
Refer to the
NI LabWindows/CVI Help
for more information on creating NI-DAQmx
tasks in LabWindows/CVI and NI-DAQmx property information.
Measurement Studio (Visual Basic 6, .NET, and C#)
When creating an voltage measurement task in Visual Basic 6, .NET and
C#, follow the general programming flow in Figure 5-1. You can then use
the appropriate function calls to modify the task. This example creates a
new task and configures an NI-DAQmx voltage measurement channel on
the SCXI-1502. You can use the same functions for Visual Basic 6, .NET
and C#.
The following text is a function prototype example:
void AIChannelCollection.CreateVoltageChannel(
System.String physicalChannelName,
System.String nameToAssignChannel,
System.Double minVal,
System.Double maxVal);