Method of operating a data transmission system
AssigneeSiemens Aktiengesellschaft
InventorsReiner Bühler, Udo Döbrich
Life of this patent
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Abstract
A method for operating a data transmission system with a plurality of stations connected over a common bus, only one of which has access rights to the bus at a given time and controls the data transmission over the bus with call messages addressed to several stations simultaneously. The response times of the called stations are determined. The called stations are parameterized so that they acknowledge and respond to the call message with response messages in the order of their response times. The method is used in field buses in automation technology.
Claims8
A method for operating a data transmission system including a plurality of stations interconnected using a common bus, wherein only one station of the plurality of stations has an access right to the bus at a predetermined time and controls a data transmission over the bus using a call message, the call message being addressed to at least two of the plurality of stations, the method comprising the steps of:
- determining a response time of each of the at least two of the plurality of stations;
- and
- configuring each of the at least two of the plurality of stations to perform in a consecutive order one of i) acknowledge to the call message and ii) respond to the call message, the consecutive order corresponding to the response time of each of the at least two of the plurality of stations, wherein a first station of the at least two of the plurality of stations accesses the bus first, the first station having a shortest response time, and a second station of the at least two of the plurality of stations accesses the bus last, the second station having a longest response time.
Dependencies are inferred from the claim text.