![]() How PID loop update parameter can be calculated? How STI interrupt subroutine differs from calling normal program files? The online help says "the instructions should be put in STI interuupt subroutine and they should have a time interval = setting of PID loop update parameter." ![]() Presently both instructions are in a single program file and rungs are controlled by logic conditions.īoth of them are set in STI mode. Is it necessary to put PID instructions in seperate program files? I have a valve which is controlled by two variables, (level & flow) for which i'm using two seperate PID instructions. Home Conferences *** LIVE PLC Q&A *** (Public) New Here? Please read this important info!!! ![]() Your Personal PLC Tutor Site - Interactive Q & A Please DON'T use it for advertising, etc. Your Personal PLC Tutor Site - Interactive Q & A - "PID controllers in SLC"
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