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A Programmable Logic Controller (PLC) is an electronic device that is used to monitor and control production processes and building systems. Although most commonly used for industrial manufacture, the unique features offered by PLCs make them useful for a number of applications.
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Introduction A Programmable Logic Controller (PLC) is an electronic device that is used to monitor and control production processes and building systems. Although most commonly used for industrial manufacture, the unique features offered by PLCs make them useful for a number of applications.
What are PLCs? PLCs are industrial computers that have been adapted for controlling manufacturing processes. It is a microprocessor-based controller with a programmable memory that stores program instructions and functions. They receive data through their inputs and send instructions through outputs to control the functions of a system using the internal logic that has been programmed into it.
The Working of PLCs PLCs take in inputs, which can be from human input points or automated data capture points. They then decide whether the output needs to be changed based on internal logic. The outputs of a PLC can control various equipment, like valves, motors, lights, etc. Today, there are numerous applications of PLCs in automation and they form fundamental parts of industrial control systems.
Advantages of PLC • Intuitive to program, with simple programming languages, helping minimise costs and complexities. • Available in various price ranges to suit the needs of various-sized businesses. • They are very versatile, suitable for controlling a wide range of systems and processes. • PLCs are completely solid-state device with no moving parts, which makes them extremely durable and reliable. • With lesser number of components, they require less maintenance and are easy to repair • Simplifying wiring considerations, they are very energy efficient.
Conclusion PLC systems have been playing a significant role in the automation of operations in the manufacturing industry for years now, providing highly reliable control over processes and creating more efficient manufacturing environments in the industry.