PLC Programming & Implementation: An Introduction to PLC Programming Methods and Applications

By Ojula Technology Innovations

In this book, which is part 1 in the series of "PLC Programming & Implementation," I teach you the practical aspect of PLC programming and industrial applications of PLCs. The book is very straightforward and easy-to-read. In this book, I present the principles of PLCs while not tying myself to one manufacturer or another. I included in this

• Language: English
• Publisher: Ojula Technology Innovations
• Release date: Feb 16, 2023
• ISBN: 9787395109877

Ojula Technology Innovations

Dr. Emily Turner, one of the contributors of this book, is a distinguished molecular biologist and educator, known for her profound contributions to the field of cellular and molecular biology. With a Ph.D. in Molecular Biology and over two decades of research experience, Dr. Turner is a true luminary in the realm of life sciences.As a passionate advocate for science education, Dr. Turner has dedicated her career to making the intricacies of cellular and molecular biology accessible to students of all backgrounds. Her journey as an author began with a deep-seated commitment to empower the next generation of scientists, culminating in the co-authorship of "Cell and Molecular Biology: An Introductory Guide for Learning Cellular & Molecular Biology."Dr. Turner's work is characterized by a rare blend of scholarly excellence and pedagogical prowess. Her research has been published in renowned scientific journals, contributing groundbreaking insights to the fields of genetics and molecular biology. Simultaneously, her engaging teaching style has earned her accolades and the admiration of her students.This collaborative effort marks a milestone in her career, where she, along with her co-authors, has crafted a book that distills the complexities of cellular and molecular biology into an approachable and engaging resource. With an unwavering commitment to the advancement of scientific knowledge, Dr. Emily Turner continues to inspire and educate, leaving an indelible mark on the world of science and education.

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PLC Programming &

Implementation

An Introduction to PLC Programming

Methods and Applications

By

Ojula Technology Innovations

PLC Programming & Implementation

Copyright © Ojula Technology Innovations

ISBN: 9787395109877

Published in the United States

PLC is a trademark of the Allen-Bradley Company. The following are trademarks of Rockwell Automation Inc.: Allen-Bradley®, MicroLogix™, PanelView™, RSLinx®, RSLogix™, RSLogix™ 500, RSLogix™ 5000, Studio™ 5000, SLC™ 500.

The author or the publisher of this book is in no way affiliated with Rockwell Automation, Inc.

All rights reserved. No part of this book and the accompanying demo videos may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews. Every effort has been made in the preparation of this book and the accompanying demo videos to ensure the accuracy of the information presented. However, the information contained in this book and the videos is sold without warranty, either express or implied. The author/publisher, its dealers and distributors will not be held liable for any damages caused or alleged to be caused directly or indirectly by this book and videos. The author/publisher has endeavored to provide trademark information about all the companies and products mentioned in this book. However, he cannot guarantee the accuracy of this information.

Table of Contents

About the Author

How this Book can Help You

Getting Started

Simple Key Terms to Understand Relay Logic to PLC Logic Conversion

1. Define the Control Task

2. Determine a Control Strategy

3. Implementation Guidelines

4. Program Organization and Implementation

4.1. How to Create Flowcharts and Output Sequences

4.2. How to Configure the PLC System

4.3. Internal and Real I/O Assignment

4.3.1. Sample Problem 1

4.3.2. Solution to Sample Problem 1

4.4. Assignment of Register Addresses

4.5. Elements Not to Be Wired to the Controller

4.6. Special Input Device Programming

4.6.1. Sample Problem 2

4.6.2. Solution to Sample Problem 2

4.6.3. Sample Problem 3

4.6.4. Solution to Sample Problem 3.

4.7. Program Coding/Translation

5. Discrete I/O Control Programming

5.1. Control Programming and PLC Descriptions

5.2. Simple Relay Replacement

5.3. Simple Start/Stop Motor Circuit

5.4. Forward/Reverse Motor Interlocking

5.5. Reduced-Voltage-Start Motor Control

5.6. AC Motor Drive Interface

5.7. Continuous Bottle-Filling Control

5.8. Large Relay System Modernization

6. Industrial Applications of PLCs

6.1. Process Control

6.2. Safety-Critical Applications

6.3. Remote Monitoring

6.4. The Cement industry

6.5. Safety PLCs Control access to a Robot Cell with Trapped-key Access

6.6. SCADA Systems Control and Monitor Industrial Processes

6.7. Modular PLCs

6.8. Benefits of Using PLCs in Industrial Applications

6.9. Application of PLCs to Paper Mill, Coal Kiln, Shaft Kiln and Glass Industries

6.9.1. How PLCs are Used in Ball Mill

6.9.2. Coal Kiln

6.9.3. Shaft Kiln

6.9.4. Paper Mill

6.9.5. Glass Industry

6.9.6. Benefits of PACs and PLCs in Industries

6.10. Safety PLCs vs Standard PLCs

6.11. Safety Precautions to Take When Working with PLCs

7. Study Guide & Review Questions

7.1. Problems & Solutions to Build Your PLC Skills

7.1.1. Review, Reinforce, Test & Sharpen your PLC Skills

7.2. Solutions to the Problems

8. More Helpful Resources

About the Author

Bolakale Aremu is a Control Systems Engineer. He has worked with hundreds of clients across the Programmable Logic Controllers (PLC) automation industry. He has written many books and articles, and created courses for higher education institutions. With his 15 years of experience in the Control Systems Engineering, he has helped some world class organizations like Post Holdings, Kraft Heinz and Procter & Gamble.

He has used several PLC-based systems like the Allen-Bradley’s RSLogix 5, 500, 5000, Studio 5000 and PACs. He is also a master of other great technologies like Cognex In-Sight Vision Systems to mention a few.

How this Book can Help You

This short book is a valuable introduction to Programmable Logic Controllers, and also a reference guide for beginners. It provides an overview of how relay logic can be converted into PLC logic. I included lots of examples, tables, and ladder diagrams to help simplify the topics I covered for beginners.

You will find this book very helpful if you are an electrician, an instrumentation technician, an automation professional or engineer that wants to improve their knowledge of PLC programming.

Getting Started

Simple Key Terms to Understand Relay Logic to PLC Logic Conversion

Control strategy: This is the sequence of steps that take place in a PLC program, which produces our desired output control.

Control task: It is our desired results of a control program.

Flowcharting: This is a method used to pictorially represent the operation of a process in a sequential manner.

Program coding: This is the process of translating a logic or relay diagram into the PLC ladder program form.

The implementation of a control program requires complex organizational and analytical skills, which change depending on the application. Because they are so varied, we cannot explain how to solve every specific control task.

Nevertheless, we can provide you with techniques and guidelines for completing this problem-solving process. In this handbook, we will introduce a strategy for implementing a control program, which includes program organization, system configuration, and I/O programming.

These strategies also apply to PLCs with the IEC 1131-3 programming standard. Additionally, we will present both simple and complex