How to install ros_canopen on ROS noetic?

Since ros_canopen targets ROS melodic, installation on noetic may require manual building from source or adapting the codebase, as it's not officially supported in the README's current develop branch.

ros_canopen vs ros2_canopen – which should I use?

Use ros_canopen for ROS 1 (melodic) projects; for ROS 2, look for ros2_canopen or similar ports, as ros_canopen is not natively compatible with ROS 2's architecture and may lack features like DDS integration.

Does ros_canopen support CAN FD?

Based on the key features, it implements standard CANopen services, which typically use classic CAN; CAN FD support is not mentioned and may require extensions or custom drivers, limiting use with newer high-speed devices.

What are the best CAN adapters for ros_canopen?

It supports SocketCAN for Linux, so adapters like Peak PCAN or Kvaser that have SocketCAN drivers work well; check the hardware abstraction layer in the documentation for specific driver compatibility.

How to troubleshoot SDO communication failures?

Debug by checking CAN bus logs, verifying device Object Dictionary entries, and using ROS tools like rostopic or rqt to monitor SDO service calls, as ros_canopen integrates these into ROS services.

Can I use ros_canopen with Arduino CAN shields?

Yes, if the Arduino setup runs Linux with SocketCAN support, but it requires custom driver integration due to ros_canopen's modular design, which may involve additional development effort.

ros_canopen — CANopen Driver Framework for ROS

What is ros_canopen?

ros_canopen is a CANopen driver framework for the Robot Operating System (ROS) that enables communication with industrial CANopen devices such as motor controllers, sensors, and I/O modules. It implements the CANopen protocol within ROS, allowing robotic systems to interact with standardized industrial networks. The project solves the integration challenge between ROS's messaging system and the widely used CANopen standard in automation.

Target Audience

Robotics engineers and developers working on industrial automation, mobile robots, or embedded systems that require CANopen connectivity within ROS-based applications.

Value Proposition

Developers choose ros_canopen because it provides a robust, open-source implementation of CANopen tailored for ROS, eliminating the need for custom drivers and ensuring compatibility with a wide range of industrial hardware. Its modular design and support for standards like SocketCAN offer flexibility and reliability in real-time robotic applications.

CANopen driver framework for ROS (http://wiki.ros.org/ros_canopen)

Use Cases

Best For

Integrating industrial motor drives into ROS-controlled robots
Building robotic systems that require CANopen sensor networks
Developing real-time communication interfaces for automation equipment
Creating modular robotic platforms with standardized CANopen devices
Research projects involving ROS and industrial protocol interoperability
Educational setups for teaching robotics with CANopen hardware

Not Ideal For

Projects not using ROS or planning to switch to ROS 2, as it's tied to ROS melodic.
Applications requiring hard real-time performance with microsecond-level latency, due to ROS messaging overhead.
Teams without CAN hardware or preferring simpler protocols like USB or Ethernet for device communication.
Developers seeking plug-and-play solutions; ros_canopen requires manual CANopen network configuration and protocol knowledge.

Pros & Cons

Pros

Standards-Based Implementation

Implements core CANopen services (NMT, SDO, PDO) as per the key features, ensuring interoperability with standardized industrial devices like motor controllers and sensors.

Seamless ROS Integration

Provides ROS nodes, topics, and services to bridge CANopen with ROS's messaging ecosystem, enabling easy integration into robotic applications without custom drivers.

Hardware Flexibility

Supports multiple CAN interfaces through drivers, including SocketCAN for Linux systems, allowing use with various CAN adapters as highlighted in the hardware abstraction feature.

Modular Architecture

Separates protocol logic from hardware layers, enabling extensibility for different CAN adapters or devices, which aligns with the project's modular design philosophy.

Cons

Tied to ROS Melodic

The README specifies it targets ROS melodic with a C++14 compiler, limiting compatibility with newer ROS distributions like noetic or ROS 2 without significant porting effort.

Complex Setup Requirements

Requires configuration of CANopen network parameters, PDO mappings, and hardware drivers, demanding expertise in both ROS and industrial protocols, which can be daunting for newcomers.

Limited Real-Time Capabilities

As a ROS-based layer on top of CANopen, it may not satisfy hard real-time constraints in some automation scenarios due to potential latency from ROS message passing.

Dependency on CAN Hardware

Necessitates physical CAN adapters and a working CAN network, adding cost and complexity compared to software-only or more common communication interfaces.

What is ros_canopen?

Target Audience

Robotics engineers and developers working on industrial automation, mobile robots, or embedded systems that require CANopen connectivity within ROS-based applications.

Value Proposition

Use Cases

Best For

Integrating industrial motor drives into ROS-controlled robots
Building robotic systems that require CANopen sensor networks
Developing real-time communication interfaces for automation equipment
Creating modular robotic platforms with standardized CANopen devices
Research projects involving ROS and industrial protocol interoperability
Educational setups for teaching robotics with CANopen hardware

Not Ideal For

Projects not using ROS or planning to switch to ROS 2, as it's tied to ROS melodic.
Applications requiring hard real-time performance with microsecond-level latency, due to ROS messaging overhead.
Teams without CAN hardware or preferring simpler protocols like USB or Ethernet for device communication.
Developers seeking plug-and-play solutions; ros_canopen requires manual CANopen network configuration and protocol knowledge.

Pros & Cons

Pros

Standards-Based Implementation

Implements core CANopen services (NMT, SDO, PDO) as per the key features, ensuring interoperability with standardized industrial devices like motor controllers and sensors.

Seamless ROS Integration

Provides ROS nodes, topics, and services to bridge CANopen with ROS's messaging ecosystem, enabling easy integration into robotic applications without custom drivers.

Hardware Flexibility

Supports multiple CAN interfaces through drivers, including SocketCAN for Linux systems, allowing use with various CAN adapters as highlighted in the hardware abstraction feature.

Modular Architecture

Separates protocol logic from hardware layers, enabling extensibility for different CAN adapters or devices, which aligns with the project's modular design philosophy.

Cons

Tied to ROS Melodic

The README specifies it targets ROS melodic with a C++14 compiler, limiting compatibility with newer ROS distributions like noetic or ROS 2 without significant porting effort.

Complex Setup Requirements

Requires configuration of CANopen network parameters, PDO mappings, and hardware drivers, demanding expertise in both ROS and industrial protocols, which can be daunting for newcomers.

Limited Real-Time Capabilities

As a ROS-based layer on top of CANopen, it may not satisfy hard real-time constraints in some automation scenarios due to potential latency from ROS message passing.

Dependency on CAN Hardware

Necessitates physical CAN adapters and a working CAN network, adding cost and complexity compared to software-only or more common communication interfaces.

ros_canopen

What is ros_canopen?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions

Related Projects

Found a gem we're missing?

ros_canopen

What is ros_canopen?

Overview

Use Cases

Best For

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions

Related Projects

Found a gem we're missing?