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Home >> BMW >> 2003 >> 745i >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Bus Systems - Overview - E65 >> Bus Systems >> Gateways >> Method Of Operation >> Notes

Method Of Operation: Notes

The data transmitted by the various bus systems is received by the gateway. At this point, transmission rates, data and priority levels of the individual messages are filtered and temporarily stored if necessary. This requires a non-volatile memory.

Using gateway rules and conversion tables, the gateway converts the messages as required by the various bus systems concerned. The messages are then passed to the various bus systems via which they reach their ultimate destinations (recipient control unit). If necessary, messages that are relatively less important are held in the gateway's memory and sent later.

Fig 1: Identifying Gateway Massage Passed Diagram
G03391278Courtesy of BMW OF NORTH AMERICA, INC.