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.

Programmable Logic Controllers (PLCs) are essential automation technologies used across industries to control electro-mechanical processes in sectors like manufacturing and plant operations.

Available in various sizes and configurations, PLCs offer flexibility by allowing processes to be reprogrammed at minimal cost. They efficiently record and analyze data based on input and output signals, tracking key parameters such as machine productivity and operating temperature to optimize performance.