Programmable Logic Controllers and Ladder Logic

Programmable Logic Controllers and Ladder Logic -...

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Unformatted text preview: PROGRAMMABLE LOGIC CONTROLLERS AND LADDER LOGIC Submitted to Dr. Alfred R. Boysen Department of Humanities South Dakota School of Mines and Technology Technical Communications I By Greg P. Zimmerman April 2008 1 13361 Gideons Trail Keystone, SD 57751 April 10, 2008 Dr. Alfred R. Boysen Department of Humanities South Dakota School of Mines and Technology Rapid City, South Dakota 57701 Dear Dr. Boysen: I am submitting the following report, Programmable Logic Controllers and Ladder Logic, for English 279 Technical Communications I. This report discusses: 1) PLC and controls history, 2) PLC components, 3) ladder logic, and 4) ladder logic programming. I would like to take this time to thank you Dr. Boysen, for making this class the first English class I have enjoyed. Your teaching techniques are one of the main reasons in my continued interest in English and the liberal arts. Your flexibility with me and my own techniques has helped me to learn more about myself as well. This is the first paper that I have enjoyed writing in quite a long time, and this is because I was allowed to write it about what I wanted to write about. When I enter the workforce, I will remember what you have taught me so that I may be better able to communicate my ideas to my coworkers, investors, or whoever else it may be. In this report I hope to further the readers understanding of logic controllers and ladder logic. Sincerely, Greg P. Zimmerman Electrical Engineering Undergraduate 2 TABLE OF CONTENTS List of Figures.................................................................................................... ...........................4 Abstract..................................................................................................................... ....................5 Introduction................................................................................................................................... 6 Subject............................................................................................................ ...................6 Purpose....................................................................................................... .......................7 Plan of Development........................................................................................................ ..8 PLC History........................................................................................................... .......................9 PLC History......................................................................................................... ..............9 Hard-Wired Relay Comparison.............................................................................. ..........10 PLC Components.............................................................................................................. ..........13 Definition............................................................................................................... ..........13Definition....
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Programmable Logic Controllers and Ladder Logic -...

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