Device for exchanging data and process for operating it
US6473839B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 1996 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | May 22, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/40273
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device or arrangement for exchanging data between a main station (master) (10) and at least one secondary station (slave) (12, 12n), which each have access to at least one common data line (11) via interfaces CAN, and processes for operating the device. Except for an individual identifier (a, b, . . . , d) of each slave (12, 12n), which is stored in an identifier memory (27, 27n) disposed in the slave (12, 12n), the slaves (12, 12n) are identical. The master (10) likewise includes an identifier memory (22), in which the identifiers (a, b, . . . , d) of the slaves (12, 12n) are to be stored, so that the master can address the slaves (12, 12n) in a targeted way and can process the data output by the slaves (12, 12n). The processes according to the invention pertain to the storage of the identifiers (a, b, . . . , d) in the identifier memory (22) of the master (10) and to the procedure in the event of ai failure of slaves (12, 12n) and/or of the master (10), taking into account the case where no external computer (14) that could furnish all the required information is available. The device according to the invention and the processes according to the invention are especially suitabl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.