Sep 13 2009
PID Close Loop Controller
The fundamental concept of PID (Proportional, Integrative, Derivative) function that embedded on most controller is how the controller could adjust the Measurement Value (MV) for actuator (control valve, inverter/motor speed drive, boiler, etc) so that difference between actual Process Value (PV) and Set Point (SP) could small enough close to zero. When the difference between [...]
