CAN ISO 11898 & CAN FD ISO 11898-1 (Controller Area Network)

BUS-system for automotive diagnostic and flash applications

CAN ISO 11898

Classic CAN

The CAN bus (Controller Area Network) was introduced to enable the networking of a large number of ECUs. As it allows considerably higher data rates than its predecessors (K-Line, J1708), it soon started being used for diagnostics and flash programming.

Today, the CAN bus is still the prevailing vehicle bus and also permissible for OBD purposes. In the auto sector, the trend is now toward Ethernet connection and the faster CAN FD.

CAN FD ISO 11898-1

Increasing the data rate as an extension to the known CAN standard

Large data volumes and the enormous speed of diagnostic communication in vehicles are shaping the automotive industry. CAN is and has been a reliable bus system for decades now and has asserted itself as the standard bus system. However, the efficiency of the classical CAN bus does not meet today’s requirements when it comes to the data transfer rate.

CAN with flexible data rate (CAN FD) overcomes the limitations of the classical CAN bus in terms of data transfer rate. In practice the data throughput of CAN FD is six times higher than classical CAN, depending on the network topology.

Enhanced efficiency is achieved by extending the data array from 8 bytes up to 64 bytes and an increased bit rate of up to 8 Mbit/s during payload transmission. With these specifications, CAN FD can process greater quantities of diagnostic data, and saves both time and costs. CAN FD can be used with both 11-bit identifiers and 29-bit identifiers.

Softing Experience

Softing has supported the CAN bus for decades. Today, it is integrated in all our diagnostic interfaces and our communication interfaces. A large number of standardized and manufacturer-specific protocols have been implemented on the basis of the CAN bus.

Softing integrates the CAN FD standard in its tool chain thus providing customers with cutting-edge technology. As a member of the CAN in Automation (CiA) association, Softing always encourages the latest improvements.

CAN/FD Solutions

VIN|ING 800 Universelle Flexible and robust vehicle communication interface (VCI) via CAN/ und CAN FD for all applications
VIN|ING 2000 High-performance VCI for production and after-sales service via CAN/FD (as well as K-line and Ethernet)
CAN-AC2-PCI  CAN Bus PCI Interface for communications tasks with CAN-API and D-PDU API
CAN-PRO2-PCIE CAN Bus PCIexpress Interface for communication tasks with CAN-API and D-PDU API
Customized solutions Countless customized protocol implementations

Further Information


Softing's Training Program

Softing Automotive | Trainings & Seminars

Expertise through Training - Vehicle Diagnostics, ODX, OTX, Softing DTS & user-specific Trainings


External Links

For more information on the standard, please refer to the following sites:

CAN - Wikipedia (DE)
CAN bus - Wikipedia