Bus coupling unit and bus system having a bus coupling unit
AssigneeSiemens Schweiz AG
InventorUrs Kästli
Life of this patent
Estimating the term…
Abstract
The teachings of the present disclosure relate to bus systems. Various embodiments thereof may include bus coupling units, for example a bus coupler comprising: four ports comprising input/output connections to which bus cables of a two-wire bus are connectable, wherein both electrical energy and data are transmissible via both bus cables. The first port and second port are bus coupler-internally electrically conductively connectable by means of a first connection path. The third port and fourth port are bus coupler-internally electrically conductively connectable by means of a second connection path. The first connection path and second connection path are bus coupler-internally electrically conductively connectable by a bridge path.
Claims8
A bus coupler comprising:
- four ports comprising input/output connections to which bus cables of a two-wire bus are connectable, wherein both electrical energy and data are transmissible via both bus cables;
- a first port and a second port are bus coupler-internally electrically conductively connectable by means of a first connection path;
- a third port and a fourth port are bus coupler-internally electrically conductively connectable by means of a second connection path;
- and
- a bridge path running from the first connection path to the second connection path, the bridge path including a bridge path switch with a first closed position electrically connecting the first connection path to the second connection path and a second open position disconnecting the bridge path;
- and
- a switching element in the first connection path or the second connection path between one of the ports and a connection point of the bridge path, wherein the switching element is controlled by bus commands.
A bus system comprising:
- at least one bus coupler with four ports comprising input/output connections to which bus cables of a two-wire bus are connectable, wherein both electrical energy and data are transmissible via both bus cables;
- a first port and a second port are bus coupler-internally electrically conductively connectable by means of a first connection path;
- a third port and a fourth port are bus coupler-internally electrically conductively connectable by means of a second connection path;
- and
- a bridge path running between the first connection path and the second connection path, the bridge path including a bridge path switch with a first closed position electrically connecting the first connection path to the second connection path and a second open position disconnecting the bridge path;
- and
- a switching element in the first connection path or the second connection path between one of the ports and a connection point of the bridge path, wherein the switching element is controlled by bus commands.
A method for operating a bus system with at least one bus coupler with four ports comprising input/output connections to which bus cables of a two-wire bus are connectable, wherein both electrical energy and data are transmissible via both bus cables;
- a first port and a second port are bus coupler-internally electrically conductively connectable by means of a first connection path;
- a third port and a fourth port are bus coupler-internally electrically conductively connectable by means of a second connection path;
- and
- a bridge path running between the first connection path and second connection path, the bridge path including a bridge path switch with a first closed position electrically connecting the first connection path to the second connection path and a second open position disconnecting the bridge path;
- and
- a switching element in the first connection path or the second connection path between one of the ports and a connection point of the bridge path, wherein the switching element is controlled by bus commands;
- including automatically opening the bridge path switch of each bus coupler to carry out tests or initialization procedures.
Dependencies are inferred from the claim text.