Patent ID: 6871250
Filing Date: 2005-03-22
Classification: H04L

Abstract:
1. A data bus system for use in motor vehicles and automation technology, comprising: a data bus; an electronic main control unit coupled to the data bus; slave nodes coupled to the data bus, the slave nodes executing functions based upon addressed command messages from the electronic main control unit, wherein the command messages contain an identifier field for addressing the commands and for which a limited amount of identifying information is provided; wherein each function executable by the slave nodes of the data bus is assigned at least one function number, each slave node having a first, non-volatile memory area in which the function numbers of the functions executable by appropriate slave nodes are permanently stored; and wherein each slave node has a second, programmable memory area, in which, for each of the function numbers stored in the first memory area, a piece of identifying information for the identifying field is storable, as a result of a special command message from the electronic main control unit.