Introduction to PLC

  Introduction to PLC   An industrial digital computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, robotic devices, or any activity that requires high-reliability control and ease of programming and process fault diagnosis is known as a programmable logic controller (PLC), also known as a programmable controller. They were initially created in the automotive sector to provide adaptable, durable, and simple program controllers to swap out hard-wired relays and timers. Since then, they have gained widespread use as tough environment-friendly high-reliability automation controllers. A PLC is an example of a "hard" real-time system because it must respond to input conditions with output results within a finite amount of time or else an unintended operation will occur. History of PLC The logic was typically represented as a series of logical expressions in a Boolean format in early PLCs because they were freque...