AUTO TUNERS AND ADAPTIVE CONTROL
Automating any process can yield big improvements by eliminating human error and adding repeatability and predictability. The benefits are greatest when the best technology and practices are automated, the novice is protected against mistakes, and the specialist is enabled to capitalize on creativity and expertise. The same is true for proportional-integral-derivative (PID) tuning.
The tool must also minimize the disruption to the process. However, process dynamics and tuning settings cannot be identified unless a known change is introduced into the process. I learned early on from Bob Otto (Monsanto Senior Fellow) that software cannot sort out the effect of PID response ...