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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

Getting to know properties

Properties are extensions of the IEC 61131-3 standard. Properties are special methods that are used to manipulate encapsulated data. When you create a property, you will get two files named get and set. These are your getter and setter methods. The getter method will be used to read data, while the setter method is used to write data to an attribute. The true value of properties will be explored in the next chapter; however, for now, we’re going to explore them to a limited degree.

Adding a property

Adding a property is a lot like adding a method. You will essentially follow the same flow of clicks that can be found in Figure 6.4, with the only exception being that you will select Property… instead of Method…. When you click Property…, you should be met with a wizard similar to the one shown in Figure 6.8. The wizard is very similar to the wizard that is used to create methods. To follow along, add the property in Figure...

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