Building a PID Controller with Your Computer

Overview

Build a custom PID Controller with a USB data acquisition device and NI LabVIEW.

View Now 7 minute(s) demo Requires: Adobe Flash

Next Steps

• View more videos to learn about NI data acquisition.
• Learn about NI data acquisition through common applications.

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Reader Comments | Submit a comment

AutoTuning being useful
It is quite difficult to have an autotuning algorithm that works for every single system. Many of our customer use the autotuning feature and are quite happy with it. I would like to learn more about your system and how/why the autotuning algorithm didn't produced adequate gains.
- Javier Gutierrez, National Instruments. javier.gutierrez@ni.com - Jun 1, 2010

Avoid the Autotuning
Notice that the Autotuning feature of this NI software was left untouched in this demo, something I understand very well. The Autotuning subVI works very poorly, mathematically, and also in its user interface. (Try pressing the Cancel button during autotuning, and catch that cancel in the outer control-loop; can't be done). More often than not this subVI produce worse PID parameters out than what you started with.
- Martin Plassen, SINTEF. martin.plassen@sintef.no - May 18, 2010