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Programmable Logic Controllers,

Edition 6

Editors: By William Bolton

Publication Date: 12 Mar 2015

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This textbook, now in its sixth edition, continues to be straightforward and easy-to-read, presenting the principles of PLCs while not tying itself to one manufacturer or another. Extensive examples and chapter ending problems utilize several popular PLCs, highlighting understanding of fundamentals that can be used regardless of manufacturer. This book will help you to understand the main design characteristics, internal architecture, and operating principles of PLCs, as well as Identify safety issues and methods for fault diagnosis, testing, and debugging. New to This edition:

A new chapter 1 with a comparison of relay-controlled systems, microprocessor-controlled systems, and the programmable logic controller, a discussion of PLC hardware and architecture, examples from various PLC manufacturers, and coverage of security, the IEC programming standard, programming devices and manufacturer’s software

More detail of programming using Sequential Function Charts

Extended coverage of the sequencer

More Information on fault finding, including testing inputs and outputs with an illustration of how it is done with the PLC manufacturer’s software

New case studies

Key Features

A methodical introduction, with many illustrations, describing how to program PLCs, no matter the manufacturer, and how to use internal relays, timers, counters, shift registers, sequencers, and data-handling facilities
Consideration of the standards given by IEC 1131-3 and the programming methods of ladder, functional block diagram, instruction list, structured text, and sequential function chart
Many worked examples, multiple-choice questions, and problems are included, with answers to all multiple-choice questions and problems given at the end of the book

About the author

By William Bolton, Formerly Lecturer, Buckingham Chilterns University College, High Wycombe, UK

Preface

Prerequisite Knowledge Assumed
Changes from the Fifth Edition
Structure of the Book
Acknowledgments

Chapter 1: Programmable Logic Controllers

Abstract
1.1 Controllers
1.2 Hardware
1.3 PLC Architecture
1.4 PLC Systems
1.5 Programs
Summary
Problems
Lookup Tasks

Chapter 2: Input/Output Devices

Abstract
2.1 Input Devices
2.2 Output Devices
2.3 Examples of Applications
Summary
Problems
Lookup Tasks

Chapter 3: Digital Systems

Abstract
3.1 The Binary System
3.2 Octal and Hexadecimal
3.3 Binary Coded Decimals
3.4 Numbers in the Binary, Octal, Hex, and BCD Systems
3.5 Binary Arithmetic
3.6 PLC Data
3.7 Combinational Logic Systems
3.8 Sequential Logic Systems
Summary
Problems
Lookup Tasks

Chapter 4: I/O Processing

Abstract
4.1 Input/Output Units
4.2 Signal Conditioning
4.3 Remote Connections
4.4 Networks
4.5 Examples of Commercial Systems
4.6 Processing Inputs
4.7 I/O Addresses
Summary
Problems
Lookup Tasks

Chapter 5: Ladder and Functional Block Programming

Abstract
5.1 Ladder Diagrams
5.2 Logic Functions
5.3 Latching
5.4 Multiple Outputs
5.5 Entering Programs
5.6 Function Blocks
5.7 Program Examples
Summary
Problems
Lookup Tasks

Chapter 6: IL, SFC, and ST Programming Methods

Abstract
6.1 Instruction Lists
6.2 Sequential Function Charts
6.3 Structured Text
Summary
Problems

Chapter 7: Internal Relays

Abstract
7.1 Internal Relays
7.2 Ladder Programs
7.3 Battery-Backed Relays
7.4 One-Shot Operation
7.5 Set and Reset
7.6 Master Control Relay
Summary
Problems

Chapter 8: Jump and Call

Abstract
8.1 Jump
8.2 Subroutines
Summary
Problems
Lookup Tasks

Chapter 9: Timers

Abstract
9.1 Types of Timers
9.2 On-Delay Timers
9.3 Off-Delay Timers
9.4 Pulse Timers
9.5 Retentive Timers
9.6 Programming Examples
Summary
Problems
Lookup Tasks

Chapter 10: Counters

Abstract
10.1 Forms of Counter
10.2 Programming
10.3 Up- and Down-Counting
10.4 Timers with Counters
10.5 Sequencer
Summary
Problems
Lookup Tasks

Chapter 11: Shift Registers

Abstract
11.1 Shift Registers
11.2 Ladder Programs
Summary
Problems
Lookup Tasks

Chapter 12: Data Handling

Abstract
12.1 Registers and Bits
12.2 Data Handling
12.3 Arithmetic Functions
12.4 Closed Loop Control
Summary
Problems
Lookup Tasks

Chapter 13: Designing Systems

Abstract
13.1 Program Development
13.2 Safe Systems
13.3 Commissioning
13.4 Fault Finding
13.5 System Documentation
Summary
Problems
Lookup Tasks

Chapter 14: Programs

Abstract
14.1 Temperature Control
14.2 Valve Sequencing
14.3 Conveyor Belt Control
14.4 Control of a Process
14.5 A Selection Example: A Drinks Machine
14.6 A Data Comparison Example: A Fan Heater
Problems
Lookup Tasks

Appendix: Symbols

Ladder Programs
Function Blocks
Logic Gates
Sequential Function Charts
Instruction List (IEC 61131-3 Symbols)
Structured Text

Answers

Chapter 1
Chapter 2
Chapter 3
Chapter 4
Chapter 5
Chapter 6
Chapter 7
Chapter 8
Chapter 9
Chapter 10
Chapter 11
Chapter 12
Chapter 13
Chapter 14

Index

Title Reviews

"...an excellent introductory text for students studying PLCs that is also a useful programming guide for engineers who need to program them...supported by numerous worked examples and a specific focus on the safety aspects necessary in PLC system design."—Computing Reviews

ISBN: 9780128029299

Page Count: 424

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Professional engineers, undergraduate and postgraduate students in electrical and electronic engineering and mechanical engineers.

Programmable Logic Controllers,

Editors: By William Bolton

Key Features

About the author

Title Reviews

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