CODESYS V3.5 Quick Start Guide: Learn PLC Programming for Industrial Automation

2025-05-16 16:20:00

Introduction to CODESYS V3.5

CODESYS V3.5 is a powerful development environment for programming industrial controllers and PLCs using IEC 61131-3 standards. It supports multiple programming languages including Structured Text (ST), Ladder Diagram (LD), and Function Block Diagram (FBD).

Benefits of Using CODESYS V3.5

  • Supports multiple industrial protocols
  • Easy integration with IIoT platforms
  • Rich visualization and debugging tools

Step-by-Step: Getting Started with CODESYS V3.5

1. Download and Install CODESYS

Visit the official CODESYS website and download the latest version of CODESYS V3.5. Follow the installation wizard to complete the setup.

2. Create a New Project

  • Open CODESYS and select File > New Project.
  • Choose a standard project template and select your target device or simulation environment.

3. Configure the PLC

  • In the device tree, right-click the device and select Add Device.
  • Select I/O modules or network adapters if needed.
  • Configure communication settings (e.g., Ethernet IP, Modbus TCP).

4. Write Your First Program

  • Create a new POU (Program Organization Unit).
  • Select a programming language (ST, LD, FBD).
  • Write your logic, such as turning on an output when an input is active.

5. Compile and Download

  • Click Build to compile the project.
  • Download the application to the PLC or simulation target.
  • Monitor the runtime using the online mode and debug features.

Best Practices

  • Use structured naming conventions for variables and POUs.
  • Utilize comments and documentation tools within CODESYS.
  • Test programs in simulation before deploying to hardware.

Video Tutorial

Watch our video guide to CODESYS V3.5 programming

Recommended Reading

Conclusion

CODESYS V3.5 offers a flexible and robust platform for industrial automation programming. By following this guide, beginners can quickly get started and gradually build more complex projects leveraging its powerful features.

Raj Bhatt
Raj Bhatt
Raj Bhatt launched Eletronic Lab in 1999 as a passion project to share his journey in electronics and to contribute to the DIY and maker communities. Over the years, his work has evolved into a valuable resource for hobbyists and enthusiasts, offering detailed tutorials and practical projects that inspire creativity and learning. Raj's expertise and enthusiasm for electronics shine through in every project he shares. His mission is to make electronics accessible and engaging for everyone, especially newcomers to the field. He welcomes feedback, suggestions, and error reports from readers, believing that collaboration and shared knowledge drive continuous improvement. Raj hopes you enjoy exploring his work as much as he enjoys creating it.