Damian Posted August 14, 2011 Report Share Posted August 14, 2011 Why wasn't the number of stages allowed to be assigned a variable? Quote Link to comment Share on other sites More sharing options...
Emil Posted August 15, 2011 Report Share Posted August 15, 2011 Hi Damian, The choice of stages is 1, 2 or 3 - not so big choice. Usually Autotune is preformed onece in a life, when you debug/tune your system. I understand there are anyway situations, when exchanging the value of one MI can be easier than download relevant DLU. But, based on my experience, in 99.5% of the cases the people will mess, will put illegal value there and then will ask need to understand why it doesn't work?... Quote Link to comment Share on other sites More sharing options...
Damian Posted August 15, 2011 Author Report Share Posted August 15, 2011 Hi Damian, The choice of stages is 1, 2 or 3 - not so big choice. Usually Autotune is preformed onece in a life, when you debug/tune your system. I understand there are anyway situations, when exchanging the value of one MI can be easier than download relevant DLU. But, based on my experience, in 99.5% of the cases the people will mess, will put illegal value there and then will ask need to understand why it doesn't work?... Hi Emil, In my case I need to develop a universal multizone (up to 16 zones) temperature controller which will utlize the same program for many different machines and process's. If it would have been variable, I could have assigned it an MI for all 16 zones, and simply changed the value in the configuration database to set the number of stages. Now, If I choose to have the number of stages variable, I have to declare 48 different Auto Tune blocks with with a bunch of comparators to achieve the same thing. This coupled with the fact that I can not set through the program the type of thermocouple used makes what could have otherwise been a very solid universal program a lot messier. PLEASE Unitronics, do not try to protect us from ourselves. This is automation, not kids toys. Quote Link to comment Share on other sites More sharing options...
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