Patent ID: 6466539
Filing Date: 2002-10-15
Classification: G06F

Abstract:
Bus system, comprising a serial bus with a transmission medium (10, 12) with a first active bus subscriber (14) at a first end and a second active bus subscriber (16) at a second end and further bus subscribers (18, 20) serially connected between said first and second ends and physically passed through by the transmission medium,whereby at least the first active bus subscriber (14) or the second active bus subscriber (16) includes a facility capable of regular transmission or receiving of status messages, whereby any one of the bus subscribers (14, 16, 18, 20) checks the status messages generated by another bus subscribers (14, 16, 18, 20) for non-presence within a defined period of time or for deviation from a form indicating an error-free state of the bus system; and, whereby then, if the status messages are not received within the defined period of time or are received in a form deviating from a form indicating error-free state of the bus system, the system is brought into a safe mode.