Control Systems and Engineering Quiz

For continuously modulated control, a feedback controller is used to automatically control a process or operation by comparing the value or status of the process variable (PV) being controlled with the desired value or setpoint (SP), and applying the difference as a control signal to bring the process variable output of the plant to the same value as the setpoint.

A control system manages, commands, directs, or regulates the behavior of other devices or systems using control loops.

Logic control systems for industrial and commercial machinery were historically implemented by interconnected electrical relays and cam timers using ladder logic.

<p>Today, most such systems are constructed with microcontrollers or more specialized programmable logic controllers (PLCs).</p> Signup and view all the answers

<p>Logic controllers may respond to switches and sensors and can cause the machinery to start and stop various operations through the use of actuators.</p> Signup and view all the answers