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Programmable Logic Controllers (PLCs) are the predominant tool for controlling industrial and specialty systems. These computer based controllers provide a variety of programming options and easily configurable inputs and outputs. This book was written to support an engineering course that focuses on the design of these systems. For the purposes of depth the book focuses on a very popular PLC brand, Allen-Bradley, but the concepts are portable to other programming platforms.
The author currently uses the book to teach an undergraduate controls course EGR 450 - Manufacturing Controls.
Dr. Hugh Jack, P.Eng. is a Professor and Chair of Product Design and Manufacturing at Grand Valley State University in Grand Rapids, Michigan, USA.
Although the book is available for download free, I have had requests for printed versions of the book. You may purchase copies of the book for $85 at Lulu.com.
Allen Bradley Manuals
PLC Tutor - discussion groups, a simulator, and a tutorial guide
MRPLC - plc related downloads
Control.com - plc discussion forums
Industrial Text - some online materials
The Learning Pit - Materials for basic electricity and controls
Business Industrial Network - basic PLC information
Bud Trinkel - ebooks on fluid power
Tek Supply - Discount sellers of AB and other equipment
Version 5.1 PDF (6MB) April 21, 2008
Version 5.0 PDF (6MB) May 5, 2007
Version 4.9 PDF (6MB) January 12, 2007
Version 4.7 PDF (5.4MB) April 14, 2005
Version 4.6 PDF (5.3MB) December 15, 2004
Version 4.5 PDF (5MB) May 5, 2004
Version 4.2 PDF (5MB) April 3, 2003
Version 4.1 PDF (5.0MB) July 22, 2002
Version 4.0 PDF (4.9MB) March 31, 2002 (HTML)
Version 3.1 PDF (4.7MB) November 27, 2001
Version 3 PDF (4.7MB) July 12, 2001
Version 2 PDF (4.5MB)