What is a programmable logic controller (PLC)?

A programmable logic controller ( PLC) or programmable controller is an industrial computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, machines, robotic devices, or any activity that requires high reliability, ease of programming, and process fault diagnosis.

What is a PLC and why is it important?

If you're familiar with industrial automation, you may have heard of PLCs. So, what is a PLC and why is it so important in the world of automation? Programmable Logic Controllers (PLCs) are industrial computers, with various inputs and outputs, used to control and monitor industrial equipment based on custom programming.

What is the Bell System?

The Bell System was a system of telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company (AT&T), that dominated the telephone services industry in North America for over 100 years from its creation in 1877 until its antitrust breakup in 1983.

What is a compact PLC?

PLC Types Based on Hardware Setup A compact PLC is a small, microprocessor-based controller designed to handle small automation tasks. It consists of a built-in programming language and an extensive, user-friendly set of instructions that simplify the type of coding needed for specific applications.