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The Advantages of the CAN-Bus

Standardized and secure communication between devices from different manufacturers is one of the most important and basic requirements for your projects. DEOS AG ensures a high level of system openness for designing projects. This is precisely why we have also been successfully using the CAN-bus, etc. for several years. The bus system, which was originally developed for the automotive sector, is internationally standardized in DIN ISO 11898. The CAN-bus is a 2-wire bus with a line-type topology for network distances of up to 5,000 m, which can be infinitely expanded by interfacing repeaters.

The event-driven data transmission is carried out at a speed of up to 1 MBit/sec. The user data length within a telegram is variable. A key highlight is the minimized radiation and high radiation resistance of the CAN-bus, which takes into consideration the complex electromagnetic conditions of technical building equipment.

You use the CAN-bus to connect various components (such as light switches, lamps, blind and window drives) into an individual system, which you can adjust to your current requests at any time. You thus benefit from the high configuration flexibility provided by the CAN-bus.

Additional technical advantages of the CAN-bus are:

  • Multi-master capable communication
  • Data exchange between any CAN participants, field devices and process control computers
  • System-wide data consistency
  • Reduced bus load through data preparation
  • Real-time thanks to guaranteed latency time
  • Data transmission security through short telegram lengths (approx. 130 bit)
  • Internal fault mechanisms
  • Hamming distance (HD) = 6, offers high safety against EMC problems