Siemens S7 PID Problem

minerman

Member
Join Date
Nov 2012
Location
Columbus, OH
Posts
82
Hello,

I'm using CONT_C (FB41). I cannot figure out how to change the manipulated value (LMN) when I'm in auto. My problem is that I want the CONT_C to resume auto control with the last manual output. I try setting the LMN with a one-shot in the logic when I initially go to auto. But I cannot get this to work. It just resumes with the last output the LMN had when it was last in auto.

Thanks for your help!
 

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