Civil Engineering Reference
In-Depth Information
Chapter 4
Higher Level Protocols
Gangolf Feiter, Lars-Berno Fredriksson, Karsten Hoffmeister, Joakim Pauli
and Holger Zeltwanger
4.1
CANopen
CANopen is a standardized communication system that specifies communication
profiles for the two lowest International Organization for Standardization (ISO)/
Open Systems Interconnect (OSI) layers as well as protocols for the ISO/OSI trans-
port and application layers. Furthermore, CANopen provides device and applica-
tion profiles in which transmitted process and configuration parameters as well as
diagnostic information are specified.
The basic idea of CANopen was developed within an Elite Sport Performance
Research in Training (ESPRIT) project. The registered association
CAN in Automa-
tion
(CiA) took over the first specification in 1994. Since then, the members of this
international users and manufacturers association extend and maintain the CANo-
pen specifications. Some of these specifications are freely available on the Internet,
while the remaining specifications are only available for CiA members. Within the
scope of this topic, not all CANopen functionalities can be described. Further in
depth going special literature is available.
