Thread: LabVIEW PID uses derivative of Process Variable
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Unread 06-01-2011, 16:34
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Re: LabVIEW PID uses derivative of Process Variable
Quote:
Originally Posted by Greg McKaskle View Post
I'll try to ask one of the authors or maintainers today. Skimming through Wikipedia on PID, it lists this along with integral windup as common modifications to the algorithm and state the same reason as Jared.

Greg McKaskle
Yes, and that would be me... Greg and Jared are correct about this feature. We use the derivative only from the measured variable to avoid the so called 'derivative kick' when you try to change its setpoint. This type of configuration is also called "PI-D controller" or "2 degree of freedom" PID.
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