CANopen is a communication protocol and device specification based on CAN. It is manily designed for use in automation and interconnection in embedded systems.


CANopen has its origin in the ESPRIT-Project ASPIC. A first protoype was developed from 1993 to 1995. Since 1995 it is maintained and standardized by CAN in Automation (CiA).

Protocol dependencies

  • CAN: Typically, CANopen uses the CAN bus protocol.

Example traffic

Wireshark CANopen traffic screenshot


The CANopen dissector is partly functional.

Preference Settings

No preference settings so far.

Example capture file

Display Filter

Show only the CANopen based traffic:


Capture Filter

External links


Imported from on 2020-08-11 23:11:46 UTC