Programmable Controllers

This applications-based book provides a clear and concise presentation of the fundamental principles of programmable controllers for process and machine control. This third edition covers all phases of programmable controller applications from design and programming to installation, maintenance and start-up. Coverage of all five standard PLC programming languages: Ladder Diagram, Function Block Diagram, Sequential Function Chart, Statement List, and Structured Text, has been increased in this third edition and numerous programming applications and examples have been added to more clearly explain each programming language. The text provides a complete and comprehensive presentation on the design and programming of programmable controller-based control applications. The material also includes chapters on binary logic fundamentals, electrical and electronic principles, input and output systems, memory and addressing, programming languages, and data communication. The final chapter covers design, installation, and maintenance of programmable controllers in detail. A chapter has been added to increase coverage of PLC languages and programming. All the chapters have been supplemented with new or improved example problems and exercises. Most of the illustrations in the book have been revised and improved. Answers to all the exercises have been added at the end of the book to assist students and instructors.