What is a Programmable Logic Controller (PLC)?
At its core, a Programmable Logic Controller (PLC) is an industrial computer designed for automation. Think of it as a ruggedized, reliable brain for machinery and processes. Unlike general-purpose computers, PLCs are built to withstand harsh industrial environments, including extreme temperatures, vibrations, and electromagnetic interference. They are specifically programmed to control various devices and processes through a series of inputs and outputs, making them crucial for automating tasks in manufacturing, processing, and many other industries.
The Anatomy of a PLC: Inputs and Outputs
PLCs operate by receiving signals from various sensors and switches