Bus layer finalised

CANopen additional application layer functions finalised

The nonprofit CiA (CAN in Automation) organisation has released the last part of the reviewed CiA® 302 series of additional application layer functions. This part 3 specifies the configuration manager and the program download via the CANopen® network. The other parts of CiA 302 have been released earlier. They specify the network management including the NMT flying master (part 2), the network variables and the process image (part 4), the SDO manager (part 5), bus-line (network) redundancy (part 6), and multi-level networking (part 7).


“The completion of the CiA 302 version 4.1 is an important milestone,” said Holger Zeltwanger, CiA Managing Director. “The new version will enable the CANopen device and system designer to improve their products and solutions.”


In particular, the program download is a very important additional application layer function. The specification provides also hints for boot-loader persistence, access protection, and compatibility checks.