How to Tune a PID Controller ▶ Check out the full blog post over at https://realpars.com/pid-tuning/ PID controllers are very sophisticated devices with likely many adjustable parameters. Let’s discuss what the parameters are and how they are used. In the most simplistic terms, the controller calculates the P, I, and D actions and multiplies each parameter by the error or E, which is equal to SP-PV in direct acting. Then, all parameter calculations are added up to produce the Control Variable. #