3/28/2023 0 Comments Boolean algebra in a oplcSome input devices include limit and pressure switches, temperature and optical sensors, and analog- to digital converters (ADCs). The PLC commonly has to interface with a wide variety of both input and output devices. Some of the physical environment problems could include vibration and shock, dirt and vapors, and temperature extremes. It is designed to deal with the harsh conditions of the industrial environment. The PLC is used to time and sequence functions that might be required in assembly lines, robots, and chemical processing. The programming language is a bit different because the purpose of the PLC is to control machines. Like a general-purpose computer, the PLC is based on digital logic and can be field-programmed. The programmable logic controller is like a heavy-duty computer system designed for machine control. To avoid this confusion, it is generally referred as programmable controller or programmable logic controller or PLC. The tile "PC" for programmable controller could be confused in common usage with "PC" used to mean personal computer. The PLC is also known as a programmable controller (PC). CHAPTER 1: INTRODUCTION PLC AND AUTOMATION 1.1 INTRODUCTIONĪ Programmable Logic Controller (PLC) is a specialized industrial computer control system used to replace banks of electromagnetic relays in industrial process control via continuously monitoring the state of input devices and makes decisions based upon custom program to control the state of output devices. Also, I would like to thanks my parents, wife for continue support me. D P Vakharia to always motivate me for industrial problem solving exercise. I would like to express my special thanks to my guide Dr. There also lots of examples, tables, and ladder diagrams to help and explain the topics. In this book, you will get an overview of how relay logic can be converted into PLC logic. The main objective of this book is to bridge the gap between theory and practical implementation of PLC information and knowledge. This book covers introduction of programmable logic controllers with basic to advance ladder programming techniques. This book has been written for the first course in “PLC Programming” especially for beginner learner of automation technology. It gives a great pleasure to present this book on “Introduction to Practical PLC Programming”. 1.3 History of Programmable Logic Controllers (PLCs):
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