Search icon
Arrow left icon
All Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Newsletters
Free Learning
Arrow right icon
Mastering PLC Programming

You're reading from  Mastering PLC Programming

Product type Book
Published in Mar 2023
Publisher Packt
ISBN-13 9781804612880
Pages 386 pages
Edition 1st Edition
Languages
Author (1):
Mason White Mason White
Profile icon Mason White

Table of Contents (25) Chapters

Preface 1. Part 1 – An Introduction to Advanced PLC Programming
2. Chapter 1: Software Engineering for PLCs 3. Chapter 2: Advanced Structured Text — Programming a PLC in Easy-to-Read English 4. Chapter 3: Debugging — Making Your Code Work 5. Chapter 4: Complex Variable Declaration — Using Variables to Their Fullest 6. Part 2 – Modularity and Objects
7. Chapter 5: Functions — Making Code Modular and Maintainable 8. Chapter 6: Object-Oriented Programming — Reducing, Reusing, and Recycling Code 9. Chapter 7: OOP — The Power of Objects 10. Part 3 – Software Engineering for PLCs
11. Chapter 8: Libraries — Write Once, Use Anywhere 12. Chapter 9: The SDLC — Navigating the SDLC to Create Great Code 13. Chapter 10: Advanced Coding — Using SOLID to Make Solid Code 14. Part 4 – HMIs and Alarms
15. Chapter 11: HMIs — UIs for PLCs 16. Chapter 12: Industrial Controls — User Inputs and Outputs 17. Chapter 13: Layouts — Making HMIs User-Friendly 18. Chapter 14: Alarms — Avoiding Catastrophic Issues with Alarms 19. Part 5 – Final Project and Thoughts
20. Chapter 15: Putting It All Together — The Final Project 21. Chapter 16: Distributed Control Systems, PLCs, and Networking 22. Assessments 23. Index 24. Other Books You May Enjoy

Final project – creating a unit converter

In automation programming, it is very common to have to convert between different units of measurement to support clients around the world. This is especially true if you have a single codebase that supports a specific machine that is deployed to many different regions. To accommodate the different units of measurement, it is common to create a function block that can do this. For our final project, we are going to create a very simple function block that can convert the following units:

  • Lbs -> kgs and kgs -> lbs
  • Feet -> meters and meters -> feet

Depending on what you’re working on, there will probably be many more units; however, this is just an example.

The first thing we need to do is create a function block called UnitConversion and add two methods called weight and length to it. Both methods should have a Return type value of REAL and an Access specifier value of PUBLIC. When you’re...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €14.99/month. Cancel anytime}