Programmable Logic Controllers / Edition 3

Programmable Logic Controllers / Edition 3

by W. Bolton
     
 

ISBN-10: 0750659866

ISBN-13: 9780750659864

Pub. Date: 07/15/2003

Publisher: Elsevier Science & Technology Books

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 maths to a minimum, avoided detailed programming instructions and presented the subject in a way that is not device specific - increasing its applicability to courses in electronics and control

Overview

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 maths to a minimum, avoided detailed programming instructions and presented the subject in a way that is not device specific - increasing its applicability to courses in electronics and control systems. The third edition has been expanded to contain new material on fail/safe operating conditions, Sequential Function Charts, floating point numbers and dummy rungs, with discussion of commercial PLCs. There is also extended coverage on the programming of PLCs for fault diagnosis, as well as distributed systems and program documentation. Each chapter is followed with a Problems section, for students to put the theory they have learnt into practice. Appendices contain further problems, and answers to all questions from each chapter are included at the back of the book.

Product Details

ISBN-13:
9780750659864
Publisher:
Elsevier Science & Technology Books
Publication date:
07/15/2003
Edition description:
Third
Pages:
240
Product dimensions:
7.32(w) x 9.58(h) x 0.56(d)

Table of Contents

Prefacevii
1Programmable logic controllers
1.1Controllers1
1.2Hardware3
1.3Internal architecture5
1.4Commercial PLCs10
Problems12
2Input-output devices
2.1Input devices14
2.2Output devices23
2.3Examples of applications30
Problems32
3Input/output processing
3.1Input/output units35
3.2Signal conditioning40
3.3Remote input/output connections42
3.4Networks48
3.5Processing inputs53
3.6Input and output addresses54
Problems56
4Programming
4.1Ladder diagrams59
4.2Logic functions62
4.3Latching68
4.4Multiple outputs69
4.5Entering ladder programs69
4.6Instruction lists71
4.7Boolean algebra76
4.8Function block diagrams79
4.9Sequential function charts80
4.10IEC standards83
4.11Programming examples84
Problems87
5Internal relays
5.1Internal relays98
5.2Internal relays in programs99
5.3Battery-backed relays102
5.4One-shot operation103
5.5Set and reset104
5.6Master control relay105
5.7Jump108
5.8Examples of programs109
Problems111
6Timers
6.1Types of timers118
6.2Programming timers119
6.3Off-delay timer123
6.4One-shot timers125
6.5Programming examples126
Problems127
7Counters
7.1Forms of counter134
7.2Programming135
7.3Up and down counting139
7.4Sequencers140
Problems144
8Shift registers
8.1Shift registers150
8.2Ladder programs151
Problems154
9Data handling
9.1Registers and bits157
9.2Data handling158
9.3Arithmetic instructions161
9.4Continuous control162
Problems164
10Designing programs
10.1Program development166
10.2Temperature control168
10.3Valve sequencing171
10.4Car park barriers176
10.5Production line control179
10.6Fail-safe systems179
Problems183
11Testing and debugging
11.1Commissioning and testing187
11.2Fault finding190
11.3System documentation195
Problems195
Appendix ANumber systems198
Problems205
Appendix BLogic gates207
Appendix CAn example of an industrial program211
Answers232
Index237

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