Continuous processes of all types commonly require closed-loop regulatory control of pressure, flow, temperature, level and other analog parameters. Classic proportional-integral-derivative (PID) control has been the go-to method to accomplish this task for decades, but there are some shortcomings. Accurate PID control is obtainable but requires careful tuning to handle disturbances, along with careful implementation to maintain performance. Poor tuning makes for inefficient controls, energy waste and equipment wear.
This white paper outlines several features now available to make PID tuning and use more user-friendly.
