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ECT 464

ECT 464. Introduction to PLC’s. Your words are windows to your heart. For out of the overflow of the heart the mouth speaks. Matthew 12:34. ECT 464 Grading. Homework & Quizzes 25 % Labs 25 % Midterm Exam                   25 % Final Exam                        25 %. Textbook.

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ECT 464

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  1. ECT 464 Introduction to PLC’s

  2. Your words are windows to your heart. For out of the overflow of the heart the mouth speaks. Matthew 12:34

  3. ECT 464 Grading Homework & Quizzes 25 % Labs 25 %Midterm Exam                   25 %Final Exam                        25 %

  4. Textbook • Erickson. Programmable Logic Controllers; An Emphasis on Design and Application, Dogwood Valley Press, 2005. • ISBN 0-9766259-0-3

  5. What is a PLC? Industrial PC with I/O (PLC) A device used to automate monitoring and control of industrial plant. A set of control relays Computer with dedicated I/O Widespread in industry Instructions in ladder logic, ladder diagram Display monitor, but no keyboard Noise/Humidity/Temperature/Vibration/EMI resilient

  6. PLC Architecture CPU Memory Programming Interface Communication Interfaces I/O Power Supply

  7. Major PLC Manufacturers (by US market share) Allen Bradley (Rockwell) Modicon (Schneider) General Electric – Fanuc Siemens Omron Mitsubishi

  8. Minor PLC Manufacturers(alphabetical) Cutler Hammer Enertron Keyence Koyo Reliance Toshiba Yokogawa (83 more PLC Manufacturers)

  9. Types of PLC’s Fixed vs. Variable Size: Pico or Nano Micro Small Large Specialty I/O

  10. PLC Languages Ladder Logic Function Block Diagram Structured Text Instruction List Sequential Function Chart

  11. PLC Control Methods Discrete Analog Sequential (Drum) Recipe

  12. PLC Uses in Industry Automotive Building Automation Cement & Glass Chemical Electrical Electronic Electric Power Fabricated Metals Food & Beverage Machinery Metals & Mining Oil & Gas Pharmaceuticals Pulp & Paper Refining Water & Wastewater

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