Programmable Logic Controllers 4th Edition

Clearly written, accurate and well illustrated, this high quality textbook is an excellent resource to teach yourself the fundamentals of PLCs. Mr. Petruzella has even added photographs and descriptions of the inner workings of commonly used I/O devices, which is especially helpful for novices. Based on Allen Bradley's SLC500 series and their RS LOGIX programming software, it covers enough ground to enable technicians to understand how they work, how to troubleshoot I/O problems, understand, modify and even originate programs found in typical industrial applications.Having moved from the power generation field--where large scale distributed control systems do the vast majority of control and PLCs handle packaged auxiliaries--to the manufacturing industry, I encountered I/O devices and motion control applications I wasn't familiar with. Mr. P's book filled in the gaps.It would have been nice if answers to at least the odd numbered review questions had been included to help quickly test my understanding, but when in doubt, I go back to the text where the answers can always be found.I also purchased the LogixPro PLC simulator (Mr. P also wrote a lab exercise manual that comes with the simulator or you can buy the simulator by itself). It gives you the ability to write, test and debug programs using the RS LOGIX instruction set and programming interface--in fact it's very close to the real deal. I really could have used that when I first started programming PLCs because learning to program using a real PLC hooked up to lights and switches is too limiting (and prohibitively expensive for many of us). And I'd rather not test and debug my programs using live machinery if I can avoid it.

I had to buy the previous edition of this book for an Advanced PLC class that I took while in college and liked the book so much that I bought the newer version when it came available. I like the newer version because it covers ControlLogix 5000 programming and platform in the last chapter and appendix's where the previous version did not. However, I did not like that this book was only available in softcover because I used my old one out in the field and did not have to worry about destroying it because the rugged hardcover would hold up. All in all, this is an excellent book as a reference manual or for beginners trying to learn programming instructions and how PLC's work.

I bought this book for an introductory PLC class I was taking. I used it later in my Advanced PLC class. It's Allen Bradley based and covers just about everything with the SLC 500 and RS Logix 5000. It's filled with real world examples to help explain the various program commands. I'm not sure I could wire and program an AB PLC just with this book, as it doesn't cover every minute detail of programming, but along with the outstanding Instructor I had, this became an invaluable reference.

Excellent book!! It starts with the basics and works its way on up. Each chapter starts with Chapter objectives, has lots of diagrams and photos, packed full of useful and practical information, is divided into easy to follow and understand sections, and ends with chapter review questions and problems. Has real world photos of actual equipment in use in industry.-Overview of PLC's-PLC hardware-Number systems and codes-Fundamentals of logic-Basics of PLC programming-Wiring diagrams, Ladder logic programs-Timers, counters, ect....Once again, Excellent book!!!

Yes, my 4th edition arrived in fine shape and I'm elated. It's new and improved over the 2nd edition I used before. I highly recommend this text to anyone learning or working with PLCs. Well written and very clear explanations by Mr. Petruzella, the author.The syllabus is well put together and the glossary is great when it comes to quickly researching items or refreshing one's memory on a particular topic. This book is a BUY!!

Book was written in with pencil all over on different pages and my class had started so I was unable to return it. This was not what I had expected from the description.

i took an on line course and this book provided the best instruction for the course apart from the on line instructori still use this for designing plc instructional codeI RECOMMEND IT

Excellent coverage of electrical circuits and how they relate to PLC's. This book explains everything you will need to know to jump into using PLC's in manufacturing, production, and industry. If this book doesn't work for you, none will. Very well organized. Great explanations for the experienced and newbie alike.