Codesys Ros2 Jun 2026

Getting CODESYS (Structured Text/Ladder Logic) to talk to ROS2 (C++/Python) requires a middleware bridge. There are three primary ways to do this: 1. The Micro-ROS Approach

The integration of CoDeSys and ROS 2 represents a significant milestone in the evolution of industrial automation. By combining the strengths of CoDeSys in industrial control with the flexibility and modularity of ROS 2, developers can create powerful and scalable control applications that leverage the best of both worlds. The benefits of this integration, including improved flexibility, increased scalability, enhanced interoperability, and faster development, make it an attractive solution for a wide range of industrial automation applications. As the industrial automation landscape continues to evolve, the integration of CoDeSys and ROS 2 is likely to play a key role in shaping the future of industrial control systems.

CODESYS and ROS 2: The Future of Industrial Automation and Mobile Robotics

DDS supports security features (authentication, encryption), which should be configured when integrating PLC systems into network environments. Conclusion codesys ros2

The most industrial method involves OPC UA (Open Platform Communications Unified Architecture). CODESYS has built-in OPC UA servers. ROS2 nodes can act as OPC UA clients to read and write variables directly to the PLC.

For decades, industrial automation and advanced robotics existed in siloed universes. Factories relied on Programmable Logic Controllers (PLCs) running deterministic IEC 61131-3 code to ensure safety, reliability, and precision. Meanwhile, the robotics research community developed the Robot Operating System (ROS and its successor, ROS 2), pushing the boundaries of computer vision, autonomous navigation, and machine learning using C++ and Python.

To help tailor this architectural concept to your specific project, tell me: Getting CODESYS (Structured Text/Ladder Logic) to talk to

Requires specialized CODESYS libraries or runtime extensions that support DDS/RTPS protocols, which may increase licensing costs or complexity. 3. Modbus TCP / TCP/IP Sockets (Legacy & Lightweight)

Use the RobinNode function block in your PLC program to map your GVL variables to shared memory. Phase 2: ROS 2 Configuration

If you are looking to start, I can help you for specific robotics platforms, or provide examples of C++ ROS nodes that use the asyncua library to talk to CODESYS via OPC UA. Share public link By combining the strengths of CoDeSys in industrial

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The lock-free bridge adds ~135μs overhead compared to native DDS, acceptable for most mechatronic systems (e.g., mobile robot base control, conveyor tracking). The OPC UA path is unsuitable for real-time control but remains viable for configuration and non-critical logging.

If you are working on a specific integration project, I can help you flesh out the implementation details. Let me know:

In this section, we set up the PLC to read sensor data and publish it via MQTT.