Programmable Logic Controllers, Fifth Edition

A programmable logic controllers (PLC) is a real-time system optimized for use in severe conditions such as high/low temperatures or an environment with excessive electrical noise. This control technology is designed to have multiple interfaces (I/Os) to connect and control multiple mechatronic devices such as sensors and actuators. Programmable Logic Controllers, Fifth Edition, continues to be a straight forward, easy-to-read book that presents the principles of PLCs while not tying itself to one vendor or another. Extensive examples and chapter ending problems utilize several popular PLCs currently on the market highlighting understanding of fundamentals that can be used no matter the specific technology. Ladder programming is highlighted throughout with detailed coverage of design characteristics, development of functional blocks, instruction lists, and structured text. Methods for fault diagnosis, testing and debugging are also discussed. This edition has been enhanced with new material on I/Os, logic, and protocols and networking. For the UK audience only: This book is fully aligned with BTEC Higher National requirements. *New material on combinational logic, sequential logic, I/Os, and protocols and networking *More worked examples throughout with more chapter-ending problems *As always, the book is vendor agnostic allowing for general concepts and fundamentals to be taught and applied to several controllers Content: Copyright , Page iv Preface , Pages ix-xii Chapter 1 - Programmable Logic Controllers , Pages 1-19 Chapter 2 - Input/Output Devices , Pages 21-57 Chapter 3 - Digital Systems , Pages 59-74 Chapter 4 - I/O Processing , Pages 75-109 Chapter 5 - Ladder and Functional Block Programming , Pages 111-146 Chapter 6 - IL, SFC, and ST Programming Methods , Pages 147-179 Chapter 7 - Internal Relays , Pages 181-208 Chapter 8 - Jump and Call , Pages 209-218 Chapter 9 - Timers , Pages 219-238 Chapter 10 - Counters , Pages 239-259 Chapter 11 - Shift Registers , Pages 261-271 Chapter 12 - Data Handling , Pages 273-287 Chapter 13 - Designing Systems , Pages 289-332 Chapter 14 - Programs , Pages 333-362 Appendix - Symbols , Pages 363-368 Answers , Pages 369-387 Index , Pages 389-400 Rapid technological advances have made the PLC (programmable logic controller) an important part of many industries, from petrochemicals to food production. This fourth edition provides students with an accessible introduction to the subject