Digital Control

What Does Digital Control Mean?

Digital control is a branch of control
theory that makes use of digital computers for acting as controllers for a system. Here, a computer is responsible for the implementation of the control
algorithm. A digital control system is also capable of taking the form of a
microcontroller to an application-specific integrated circuit and even to a
desktop computer, largely depending on the need. Usually, a digital control
system consists of an A/D conversion for converting analog input to digital
format for the machine, D/A conversion for converting digital output to a form
that can be the input for a plant, and a digital controller in the form of a
computer, microcontroller or a programmable logic controller.


Techopedia Explains Digital Control

Reliable, inexpensive, miniaturized computers are capable of taking over the functions of a controller. This is largely done because it is cost effective, since hardware is replaced by software. Complex functions are also much easier to implement, and logging and monitoring is easy with computers. Digital controllers are also capable of taking many forms, such as that of a microprocessor board, in the case of a computer, a microcontroller, or a programmable logic controller. Digital control systems are flexible, inexpensive, scalable and adaptable. Therefore, they are widely used in multiple control system implementations.


Related Terms

Latest Computer Science Terms

Related Reading

Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…