Cover image for Programmable Logic Controllers, 4th Edition

Programmable Logic Controllers, 4th Edition

Author William Bolton
Release Date: 2011/04/01
ISBN: 9780750681124
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Book Description

This is the introduction to PLCs for which baffled students, technicians and managers have been waiting. In this straightforward, easy-to-read guide, Bill Bolton has kept the jargon to a minimum, considered all the programming methods in the standard IEC 1131-3 - in particular ladder programming, and presented the subject in a way that is not device specific to ensure maximum applicability to courses in electronics and control systems.

Now in its fourth edition, this best-selling text has been expanded with increased coverage of industrial systems and PLCs and more consideration has been given to IEC 1131-3 and all the programming methods in the standard. The new edition brings the book fully up to date with the current developments in PLCs, describing new and important applications such as PLC use in communications (e.g. Ethernet – an extremely popular system), and safety – in particular proprietary emergency stop relays (now appearing in practically every PLC based system).

The coverage of commonly used PLCs has been increased, including the ever popular Allen Bradley PLCs, making this book an essential source of information both for professionals wishing to update their knowledge, as well as students who require a straight forward introduction to this area of control engineering.

Having read this book, readers will be able to:
* Identify the main design characteristics and internal architecture of PLCs
* Describe and identify the characteristics of commonly used input and output devices
* Explain the processing of inputs and outputs of PLCs
* Describe communication links involved with control systems
* Develop ladder programs for the logic functions AND, OR, NOT, NAND, NOT and XOR
* Develop functional block, instruction list, structured text and sequential function chart programs
* Develop programs using internal relays, timers, counters, shift registers, sequencers and data handling
* Identify safety issues with PLC systems
* Identify methods used for fault diagnosis, testing and debugging programs

Fully matched to the requirements of BTEC Higher Nationals, students are able to check their learning and understanding as they work through the text using the Problems section at the end of each chapter. Complete answers are provided in the back of the book.

* Thoroughly practical introduction to PLC use and application - not device specific, ensuring relevance to a wide range of courses
* New edition expanded with increased coverage of IEC 1131-3, industrial control scenarios and communications - an important aspect of PLC use
* Problems included at the end of each chapter, with a complete set of answers given at the back of the book

Table of Contents

  1. Cover
  2. Title Page
  3. Copyright
  4. Table of Contents
  5. Preface
    1. Changes from third edition
    2. Aims
    3. Structure of the book
  6. Chapter 1: Programmable logic controllers
    1. 1.1 Controllers
    2. 1.2 Hardware
    3. 1.3 Internal architecture
    4. 1.4 PLC systems
  7. Chapter 2: Input—output devices
    1. 2.1 Input devices
    2. 2.2 Output devices
    3. 2.3 Examples of applications
  8. Chapter 3: Number systems
    1. 3.1 The binary system
    2. 3.2 Octal and hexadecimal
    3. 3.3 Binary arithmetic
    4. 3.4 PLC data
  9. Chapter 4: I/O processing
    1. 4.1 Input/output units
    2. 4.2 Signal conditioning
    3. 4.3 Remote connections
    4. 4.4 Networks
    5. 4.5 Processing inputs
    6. 4.6 I/O addresses
  10. Chapter 5: Ladder and functional block programming
    1. 5.1 Ladder diagrams
    2. 5.2 Logic functions
    3. 5.3 Latching
    4. 5.4 Multiple outputs
    5. 5.5 Entering programs
    6. 5.6 Function blocks
    7. 5.7 Program examples
  11. Chapter 6: IL, SFC and ST programming methods
    1. 6.1 Instruction lists
    2. 6.2 Sequential function charts
    3. 6.3 Structured text
  12. Chapter 7: Internal relays
    1. 7.1 Internal relays
    2. 7.2 Ladder programs
    3. 7.3 Battery-backed relays
    4. 7.4 One-shot operation
    5. 7.5 Set and reset
    6. 7.6 Master control relay
  13. Chapter 8: Jump and call
    1. 8.1 Jump
    2. 8.2 Subroutines
  14. Chapter 9: Timers
    1. 9.1 Types of timers
    2. 9.2 Programming timers
    3. 9.3 Off-delay timers
    4. 9.4 Pulse timers
    5. 9.5 Programming examples
  15. Chapter 10: Counters
    1. 10.1 Forms of counter
    2. 10.2 Programming
    3. 10.3 Up and down counting
    4. 10.4 Timers with counters
    5. 10.5 Sequencer
  16. Chapter 11: Shift registers
    1. 11.1 Shift registers
    2. 11.2 Ladder programs
  17. Chapter 12: Data handling
    1. 12.1 Registers and bits
    2. 12.2 Data handling
    3. 12.3 Arithmetic functions
    4. 12.4 Closed loop control
  18. Chapter 13: Designing systems
    1. 13.1 Program development
    2. 13.2 Safe systems
    3. 13.3 Commissioning
    4. 13.4 Fault finding
    5. 13.5 System documentation
  19. Chapter 14: Programs
    1. 14.1 Temperature control
    2. 14.2 Valve sequencing
    3. 14.3 Conveyor belt control
    4. 14.4 Control of a process
  20. Symbols
  21. Answers
  22. Index
18.190.159.10