Programmable Logic Controllers, or PLCs, are the brains behind most industrial automation systems. They are specialized computers designed to perform control functions in harsh factory environments. PLCs take input from sensors and other devices, process the information based on pre-set logic, and send commands to machinery or actuators. Their ability to work in real time with minimal latency makes them indispensable in applications like manufacturing lines, packaging systems, and process control. PLCs come in compact, modular, and rack-mounted forms, suitable for small machines or entire production facilities. They communicate using industrial protocols such as Modbus, Profibus, and EtherNet/IP. Popular PLC brands include Siemens, Allen-Bradley, and Schneider Electric. Known for reliability and scalability, PLCs are essential for automating repetitive tasks, ensuring precision, and reducing human error. Whether controlling conveyor belts, robotic arms, or mixing tanks, PLCs help factories run smarter and more efficiently.
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