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Chapter 1 Taking Measurements with the NI 5911
© National Instruments Corporation 1-3 NI 5911 User Manual
Note
The +5 V signal is fused at 1.1 A. However, National Instruments recommends
limiting the current from this pin to 30 mA. The fuse is self-resetting.
Acquiring Data with Your NI 5911
You can acquire data either programmatically—by writing an application
foryourNI5911—or interactively with the VirtualBench-Scope soft front
panel.
Programmatically Controlling Your NI 5911
To help you get started programming your NI 5911, NI-SCOPE comes
with examples that you can use or modify. You can find LabVIEW
examples by going to
Program Files\National Instruments\
LabVIEW\Examples\Instr\niScopeExamples.llb
. Examples for
CVI, C, and Visual Basic programmers using Windows 98/95 are located
in
vxipnp\win95\Niscope\Examples
, and examples for CVI, C, and
Visual Basic programmers using Windows 2000/NT are available at
vxipnp\winnt\Niscope\Examples
.
Other resources include the NI-SCOPE Instrument Driver Quick Reference
Guide. It contains abbreviated information on the most commonly used
functions and LabVIEW VIs. For more detailed function reference help,
see the NI-SCOPE Function Reference Help file, located at Start»
Programs»National Instruments SCOPE. For more detailed VI help,
use LabVIEW context-sensitive help (Help»Show Context Help).
Interactively Controlling Your NI 5911 with VirtualBench-Scope
The VirtualBench-Scope soft front panel allows you to interactively
control your NI 5911 as you would a desktop oscilloscope.
The following sections explain how to make connections to your NI 5911
and take simple measurements using the VirtualBench-Scope soft front
panel, as shown in Figure 1-4. To launch the soft front panel, select
Start»Programs»National Instruments SCOPE»VirtualBench-Scope.
Using the VirtualBench-Scope Soft Front Panel
The following sections describe how to perform simple analog input
measurements using the VirtualBench-Scope soft front panel.