The same tuning recipe we successfully demonstrated for PI control and PID controldesign and tuning can be used when a controller output (CO) filter is added to the heat exchanger process control loop. Here we explore PID with CO Filter control using the unified (controller with internal filter) form. We showed in this previous article […]

Like the PI controller, the Proportional-Integral-Derivative (PID) controller computes a controller output (CO) signal for the final control element every sample time T. The PID controller is a “three mode” controller. That is, its activity and performance is based on the values chosen for three tuning parameters, one each nominally associated with the proportional, integral […]