The attributes of CAN
CAN is a bus system with multi-master capabilities, that is, all CAN nodes can request the bus simultaneously. The bus system CAN with real-time capabilities is the subject of the international standard ISO/DIS 11898 and covers the lowest two layers of the ISO/OSI reference model.
In CAN networks there is no addressing of subscribers or stations in the conventional sense, but instead, prioritized messages are transmitted. Introductory courses, function libraries, starter kits, host interfaces, I/O modules and tools are available permitting low cost implementation of CAN networks. Low-cost controller chips implementing the CAN data link layer protocol in silicon and permitting simple connection to microcontrollers have been available since 1989. The use of CAN in most of European passenger cars and the decision by truck and offroad vehicle vendors for CAN guarantees the availability of CAN chips for the next 10 years minimum. Other high volume markets, like domestic appliances and industrial control, also increase the CAN sales figures. One of the outstanding features of the CAN protocol is its high transmission reliability. The maximum transmission rate is specified as 1 MBit/s. This value applies to networks up to 40 m. For longer distances the data rate must be reduced: for distances up to 500 m a speed of 125 kBit/s is possible, and for transmissions up to 1 km a data rate of 50kBit/s is permitted.
Janz CAN Products – The first choice of the market leaders!
Janz CAN host interfaces are available for a wide
range of different platforms, like ISA/PCI,
CompactPCI, VMEbus, PCcard (PCMCIA), PMC,
PC/104 and others. Software support and libraries
with standard APIs for Windows, Linux, QNX,
VxWorks and many other operating systems are also
Many companies all over the world have chosen Janz Automationssysteme AG as reliable supplier for CAN products of highest quality, with unrivalled product support.
Choosing the right system platform and the right operating system for your special project is critical. Janz' CAN products are widely recognized as the best solution for quality projects from design and implementation and on in to production.