Reply To: Weird results

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The proces is a gas flame that is heating a metal drum in a flow of air. Minimal flame heats up at bit. Had to wait for stability in beginning. Then turn gas flame up. When gas flame was turned down again the airflow cooled down the drum again because it was hotter that before.

The tuning results from the software and the real world are, miles apart for some reason while the model seems to follow the measurements pretty well…

I tried all available models but could not get even close to the real world PID settings that gave me reasonable results…

Thanks again for making this. I think it will be(come) useful to many people!