Introduction to LabVIEW Control Design Toolkit by Finn Haugen ...
Introduction to LabVIEW Control Design Toolkit by Finn Haugen ...
Introduction to LabVIEW Control Design Toolkit by Finn Haugen ...
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The <strong>Control</strong> <strong>Design</strong> <strong>Toolkit</strong> was initially launched in Spring 2004. It expands <strong>LabVIEW</strong>'s<br />
capabilities for control system and dynamic system analysis and design considerably. The set of<br />
functions available is comparable with the <strong>Control</strong> System Toolbox in Matlab and the similar<br />
control system function category in Octave.<br />
Included in version 2.0 is the <strong>Control</strong> <strong>Design</strong> Assistant, which is an interactive <strong>to</strong>ol which can<br />
be used independent of <strong>LabVIEW</strong>, and without <strong>LabVIEW</strong> programming (you can however<br />
create <strong>LabVIEW</strong> code from your <strong>Control</strong> <strong>Design</strong> Assistant project). The <strong>Control</strong> <strong>Design</strong><br />
Assistant is available from the Start / Programs / National Instruments meny on your PC and<br />
from the Tools / <strong>Control</strong> <strong>Design</strong> <strong>Toolkit</strong> in <strong>LabVIEW</strong>.<br />
The VIs in the examples does not contain any while loops. Consequently, the VIs run just once.<br />
If you want a VI <strong>to</strong> run continuously with a well-defined time step between each while loop<br />
execution, possibly while you are adjusting some parameters, you can place the block diagram<br />
code in while loop.<br />
If you have comments or suggestions for this document please send them via e-mail <strong>to</strong> finn@<br />
techteach.no.<br />
In the text, CDT will be used as an abbreviation for <strong>Control</strong> <strong>Design</strong> <strong>Toolkit</strong>.<br />
The date shown in the beginning of the document indicates the version of the document. The<br />
document may be updated any time. Changes from previous versions will be described in the<br />
Preface.<br />
2 The contents of the <strong>Control</strong> <strong>Design</strong> Palette<br />
Once the <strong>Control</strong> <strong>Design</strong> <strong>Toolkit</strong> is installed, the <strong>Control</strong> <strong>Design</strong> palette is available from the<br />
Functions palette. The <strong>Control</strong> <strong>Design</strong> palette is shown in the figure below.<br />
The <strong>Control</strong> <strong>Design</strong> palette<br />
Below is a list of functions (and possible subpalettes) on the <strong>Control</strong> <strong>Design</strong> palette. (It may be<br />
wise <strong>to</strong> just browse the list <strong>to</strong> get a quick impression of the possibilities.)<br />
The Model Construction palette, with the following functions and/or subpalettes:<br />
Construct State-Space Model<br />
Construct Transfer Function Model<br />
Construct Zero-Pole-Gain Model<br />
Construct Random Model<br />
Construct Special Model:<br />
First order with (or without) time delay<br />
Second order with (or without) time delay<br />
Delay Pade Approximation
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