You're reading from Mastering PLC Programming The software engineering survival guide to automation programming

Product type Paperback

Published in Mar 2023

Publisher Packt

ISBN-13 9781804612880

Length 386 pages

Edition 1st Edition

Languages

PLC programming

Tools

PLC

Concepts

PLC Programming

Author (1):

M. T. White

View More author details

Table of Contents (25) Chapters

Preface

1. Part 1 – An Introduction to Advanced PLC Programming

2. Chapter 1: Software Engineering for PLCs FREE CHAPTER

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

Why subscribe?

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PLC/automation device communication

UDP and TCP are general communication protocols. By this, I mean that they are used for many different types of IT applications, such as internet applications, common computer networks, and so on. However, many of the PLC manufacturers produce their own communication systems to be used with their PLCs and various types of industrial components. Some of these systems are very similar and use the same physical connectors as standard computers do – for example, Ethernet cables. However, some use exotic connectors and will be unique for certain devices. The first communication protocol we are going to discuss is one of the most popular, which is called Modbus.

Modbus

Modbus is an industrial communication protocol. Modbus is a little different than the other protocols that we have discussed thus far. Where TCP and UDP are more agnostic in terms of IT applications, Modbus was developed in the late 70s for use in PLC communications by the company...