Codesys Ros2 【2024】

There isn't a single "official" driver, but several proven architectural patterns exist: ScalABLE40/robin: The ROS-CODESYS Bridge - GitHub

ROBIN supports a wide range of IEC 61131‑3 data types—BOOL, integers of various widths, REAL, LREAL, STRING, as well as arrays and custom structures—and has predefined message definitions for common ROS types. The bridge can be largely automated: the developer defines variables in the CODESYS project, then runs an updater tool that generates the necessary ROS mapping. codesys ros2

: Using Modbus or OPC UA as an intermediary layer. For example, a Python script in the ROS2 workspace can act as a bridge, reading data from CODESYS via Modbus and publishing it to a ROS2 topic. There isn't a single "official" driver, but several

Rather than writing custom ROS 2 drivers for every fieldbus protocol—CANopen, EtherCAT, Modbus, Ethernet/IP, and others—developers can let CODESYS handle the hardware layer and expose a clean, high‑level interface to ROS 2. This separation of concerns reduces complexity, speeds up development, and improves reliability. In a typical scenario, CODESYS manages all low‑level I/O and fieldbus communication, while ROS 2 focuses on higher‑level motion planning, perception, and overall system coordination. For example, a Python script in the ROS2

Using advanced integration methods, such as the CODESYS Communication Packages or containerized microservices, the PLC runtime directly participates in the DDS global data space.

handles low-level hardware communication (like EtherCAT or CANopen) to ensure reliable, real-time machine safety and motion.

mkdir -p ~/codesys_ros2_ws/src cd ~/codesys_ros2_ws/src ros2 pkg create --build-type ament_python codesys_bridge --dependencies rclpy std_msgs Use code with caution. Step 3: Write the Python Bridge Node