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 book extensive examples and chapter-ending problems that utilize several popular PLCs, highlighting understanding of fundamentals that can be used regardless of manufacturer.
This book will help you to understand the main design characteristics, internal architecture, and operating principles of PLCs, as well as identify safety issues and methods for fault diagnosis, testing, and debugging.
What you’ll learn in this book:
- Comparison of relay-controlled systems, microprocessor-controlled systems, and the programmable logic controller, a discussion of PLC hardware and architecture, examples from various PLC manufacturers, and coverage of security, the IEC programming standard, programming devices and manufacturer’s software.
- Detail of programming using Sequential Function Charts.
- Extended coverage of the sequencer.
- Information on fault finding, including testing inputs and outputs with an illustration of how it is done with the PLC manufacturer’s software.
- New case studies.
After reading the book, you will have a good understanding and broad practical knowledge of PLCs and ladder logic programming. You will also be able to apply it to numerous real-world situations and industrial applications, such as:
- Paper Mill
- Coal Kiln
- Shaft Kiln
- Glass Industry
- Cement Industry
- Automated Drill Press Control
- SCADA
- Robot Cell with Trapped-key Access
- and so much more…
Table des matières
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. 37
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