CAN FD light improvements

Originally, the CAN FD light specification has been developed within CiA. In the meantime, the related CiA 604-1 document has been submitted to ISO and is now the base of an ISO 11898-1:2024 annex. The corresponding CiA document has been withdrawn.

CiA has started to develop a CAN FD light system design recommendation (CiA 604-3). A work draft is already available for CiA members. Recently, CiA has started a CAN FD light high bit-rate specification. Additionally, CiA is working on ISO 11898-1:2024 clarifications regarding CAN FD light. They will be introduced into the next edition of ISO 11898-1. The ISO 16845-1 conformance test plan will reference some of these clarifications. The conformance test plan of the CAN FD light high bit rate approach will be specified in CiA 604-11, which will be submitted later to ISO.

The improved CAN FD light approach allows bit rates up to 8 Mbit/s, when using CAN SIC transceivers as standardized in ISO 11898-2:2024. The high bit rate approach has also some impacts on the CAN FD light commander nodes, which are also covered by the CiA documents.

For details, please contact CiA office.