How to Select the Right Type of Controller
Distinguishing Characteristics P-only Accelerates the response of controlled process Produces offset except for integrating (1/s) processes PI Eliminates offset Usually
Distinguishing Characteristics P-only Accelerates the response of controlled process Produces offset except for integrating (1/s) processes PI Eliminates offset Usually
The below figure 1 shows a typical control scheme with two controllers driving the same control valve via high select