Do You Folks Want a PID "tutorial" ?

C

Cushing H.

Joined
Jun 3, 2019
Messages
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Once again, some questions have come up in threads on PID controllers. It is my belief that if you understand and take into account the underlying algorithms (and their behavior) of the PID controller that a lot of the confusion that happens when Autotune does not work well can be overcome. So - my question is - do you folks want me to take a stab at some sort of PID tutorial thread (I can do it pretty much without math - mostly images and plots)? Or - do you want to just stick with autotune and get on with things?
 
I became allergic on that thing ....PID . But I will give it one more chance :thumbsup: So far , my fuzzy human logic can keep temperature with on/of switch in range of 3 degree Celsius :D
 
Cushing, I might not comment lots on your threads, but believe me I do read and follow them closely. Please do comment on PID controls. I got into PID controls just as auto tuning was getting good and was involved VERY little in manual programing by calculation of Proportional, Integral, Derivative values.
 
I’ve got a cheaper one on my salt pot and frankly have no idea if it can auto tune or if I can help manage it to have less temp swing. I want to build an oven and am looking hard at getting one of those Bartlett touch screen controllers like on the newer Paragon ovens. I think the only downfall for me reading whatever you might have is I’m a fair ways from technically minded when it comes to math (derivatives...algorithms..etc). So, not sure how much you can help a guy like me, but I’d probably read and see if I could somehow learn and implement it :).

Jeremy
 
gudspelr said:
I’ve got a cheaper one on my salt pot and frankly have no idea if it can auto tune or if I can help manage it to have less temp swing. I want to build an oven and am looking hard at getting one of those Bartlett touch screen controllers like on the newer Paragon ovens. I think the only downfall for me reading whatever you might have is I’m a fair ways from technically minded when it comes to math (derivatives...algorithms..etc). So, not sure how much you can help a guy like me, but I’d probably read and see if I could somehow learn and implement it :).

Jeremy
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Gufespeir - my intent would be to try to create a thread that is more based on visual pictures and “intuitive” understanding of what is happening. I might fail,but then again i might succeed. Is that worth it to you to at least give it a try?
 
Cushing H. said:
Gufespeir - my intent would be to try to create a thread that is more based on visual pictures and “intuitive” understanding of what is happening. I might fail,but then again i might succeed. Is that worth it to you to at least give it a try?
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Oh, it’s most certainly worth it for me. The potential for me to actually understand them more would be great. Your teaching is likely very apt, your student in my case, may be lacking. But I’m up for it if you are ;).

Jeremy
 
Cushing H. said:
Sorry ... I honestly don’t know what you are referring to re a meta joke ?
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His user name is gudspelr. I thought your misspelling of a joke about good spelling might have been an intentional meta joke. It cracked me up, but I am easily amused.
 
Absolutely, please do! I'm running mine on auto tune and it actually works great. BUT I like to learn the details of things and always wonder if I could improve the functionality of things.
 
Hubert S. said:
His user name is gudspelr. I thought your misspelling of a joke about good spelling might have been an intentional meta joke. It cracked me up, but I am easily amused.
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Not intentional. My fingers just do not work well with an ipad or iphone keypad (either does not activate the character i punch or activates the adjacent one). Frequent misspellings - very frustrating
 
Ok ... it seems that there are enough people interested to at least take a stab at it. There are a number of controllers out there - but along the way I will take a stab at interpreting the instructions for use for two of them (Auberins and Inkbird ITC-106). (BTW - the Inkbird ITC-100 PID is a different animal - implementing some really weird control algorithm that I just can not interpret - they call it "PID" - but it is not not the classical algorithm - I dont think I can help there :-( ) I will start a separate thread to keep the information, and questions that arise, contained to a single place.
 
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