Programmable Logic Controllers Paperback – 24 Sep 2009
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About the Author
W. Bolton has worked in industry, as well as academia as a senior lecturer in a College of Technology, a member of the Nuffield Advanced Physics team, adviser on British Government Aid project to Brazil on technical education, UNESCO consultant in Argentina and Thailand, Head of Research and Development at the Business and Technician Education Council, now retired. He has written many engineering textbooks including: Mechatronics 4th ed. Engineering Science 5th ed. Higher Engineering Science 2nd ed. Mechanical Science 3rd ed. Instrumentation and Control Systems.
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Top Customer Reviews
Ladder diagrams have the crippling disadvantage that they lack the formal semantics that can be provided for more modern programming formalisms. Thus the only viable forms of verification are simulation and testing. Nowadays this is a long way removed from best practice, especially for safety controllers, where formal verification is now starting to be used. Today anyone programming a safety controller in ladder diagrams is deliberately choosing to ignore better, safer techniques. A PLC textbook that gives almost all of its examples in LDs therefore, IMO, fails to serve its readers well.
While the author's prose style is basically clear, his exposition is excruciatingly repetitive, often giving three or four LD examples when it would be much better if it gave equivalent examples in different PLC programming formalisms. The grinding repetition left me wondering what sort of minds (mentalities?) the book was written for.
Many diagrams are mislabelled and often the diagrams referred to in one text section actually appear in another. This smacks of desperate, shoddy editing to get out the current fifth edition of a book that is in my view now moribund in its field.
There is a lot of good stuff in this book, but it is so terribly let down, in what looks like a rush or "amateur job"
In addition to this, I find the summary and problems at the end of each section very helpful. Highly recommended!
I've bought a few PLC books but this is definitely the most comprehensive and useful
Recommended for anyone using PLCs for the first time or those returning to programming after a break.
Most Recent Customer Reviews
just right for the beginner and a refresher in PLC logic and applications as you can apply the information to any make of equipmentPublished on 29 May 2014 by KEVIN HINTON
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