What Is PLC and SCADA? 2025 Beginners Guide
.jpg)
What Is PLC and SCADA? 2025 Beginners Guide Automation is now a critical part of modern industries. Whether in manufacturing, energy, or infrastructure, companies rely on intelligent systems to control machines and monitor processes. Two of the most commonly used technologies in this field are PLC and SCADA . If you are new to automation or want to understand how industries work behind the scenes, this guide is for you. What is a PLC (Programmable Logic Controller)? A PLC is a digital computer designed for industrial applications. Unlike a personal computer, a PLC is made to operate in environments with high temperature, vibration, electrical noise, or dust. Its main job is to control machinery automatically. PLCs work by receiving inputs from sensors (like temperature sensors or switches), processing that data according to a set of instructions, and sending output signals to machines like motors, pumps, or valves. Let’s say you are running a packaging machine. A sensor detects wh...