The CAN FD protocol has been improved regarding failure detection capability during the standardization process within the ISO.

This makes it incompatible to the original CAN FD protocol developed by Bosch. In order to avoid misunderstandings, CAN in Automation (CiA) recommends to use the terms “ISO CAN FD” and “non-ISO CAN FD”. All products compliant to the upcoming ISO standard 11898-2:2015 should be called “ISO CAN FD”. Products implementing the Bosch’s original should be named “non-ISO CAN FD”. “CiA will use this terminology in all of its publications,” said Holger Zeltwanger, CiA Managing Director. “We ask all CAN FD product and service provider to do the very same. There should be no data-sheet published that describes a product as CAN FD compliant without the prefixes ‘ISO’ or ‘non-ISO’.” More information about the ISO CAN FD protocol and its improvement you find in the December issue of the CAN Newsletter magazine, which is also available online.