Several CiA profiles improved and updated

Bosch, NXP and Vector will be showcasing CAN XL networks at Embedded World 2023. CAN XL is the third CAN protocol generation, with which bit rates of up to 20 Mbit/s are possible. The maximum data field length of a frame telegram is 2048 bytes.

• The registered association CiA (CAN in Automation) will be exhibiting two CAN XL networks at its Embedded World stand (Hall 1/203). One will be provided by NXP. It runs at 20 Mbit/s in the data phase and uses the prototype transceivers from the Dutch semiconductor manufacturer. The arbitration bit rate is 500 kbit/s and error detection is switched off. Vector's demonstrator can also be seen at the CiA stand. It shows a service-oriented communication based on CAN XL. A third CAN XL demonstrator can be seen at the Bosch stand (Hall 4/334) at the trade fair in Nuremberg. It uses the CAN XL FPGA implementation from Bosch.
• "CAN is more than just a further improvement of the CAN protocol and physical data transmission," said Holger Zeltwanger, CiA Managing Director. "It is a complete ecosystem." It offers management functions embedded in the protocol for higher protocols, so that different applications can be run on one network. Virtual networks are also supported. Optionally, the CANsec protocol (cybersecurity) and frame fragmentation can be used.
• CiA members have developed the CAN-XL basic specifications (CiA-601 series), some of which were published last year. The data link layer (CiA 610-1) has been submitted to ISO and is to be incorporated into the next version of the ISO 11898-1 standard. It is currently being coordinated. The specifications of the CAN-SIC-XL transceiver (CiA 610-3) and the CAN-SIC transceiver (CiA 601-4) have already been integrated into the ISO 11898-2 standard and are available as a DIS (Draft International Standard). Once the latest comments have been incorporated, this document will be published as an ISO standard.