Bus system and method for achieving a stable bus redundancy
AssigneeSiemens Aktiengesellschaft
InventorsElmar Flaschka, Clemens Hoga
Life of this patent
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Abstract
A bus system interconnected to a coupling module to form a ring structure for reasons of redundancy, whereby a linear structure of the bus (1) is achieved through a partition (9) in the coupling module (8). A monitoring device (11) contained in the coupling module (8) monitors the bus (1) for like conditions on both sides of the partition (9), which is closed by a controllable switching device (10) in the event of a discrepancy. According to the bus system, and method of detecting discrepancy in the bus, an especially simple and stable bus redundancy is achieved in that the bus (1) is provided with cables for supplying power to the bus stations (2 . . . 6) and in that the supply voltage is monitored on the cables on both sides of the partition (9).
Claims19
Bus system comprising:
- a coupling module comprising a partition and a monitoring device;
- a bus connected to the coupling module to form a ring structure;
- and
- at least one bus station connected to the bus,
- wherein a linear structure of the bus is achieved through the partition in the coupling module,
- the bus comprises at least one lead for supplying power to the bus station, and
- the monitoring device monitors the bus for matching conditions on both sides of the partition by comparing the supply voltage on the lead on both sides of the partition.
A method for monitoring a bus connected to a coupling module to form a ring structure, the coupling module comprising a partition and a monitoring device, with at least one bus station connected to the bus, wherein a linear structure of the bus is achieved through the partition in the coupling module, said method comprising:
- monitoring the bus for like conditions on both sides of the partition;
- supplying voltage to the bus station;
- and
- comparing the supply voltage on the lead on both sides of the partition.
Dependencies are inferred from the claim text.