In Matlab, PID refers to Proportional Integral Derivative.
PID controlerl is one of the familiar blocks used in Matlab for Industrial automation.
Working of PID controller:
The PID controller will produce a control signal as the output by combining all three Proportional Integral and Derivative controllers.
If it is used a feedback controller, then it will pass the signal at desired level set by the user.
In Industrial Automations, PID controller device is used to regulate temperature, pressure etc.
PID tuning is the process in which the PID is adjusted in such a way to give the quickest response of the output