Patent · US Active

Method for fail-safe transmission, safety switching device and control unit

US8321774B2 · kind B2 · utility

18Cited by

1References

16Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Herbert Barthel · Herzogenaurach, DE
Wolfgang Stripf · Karlsruhe, DE

Key dates

Filing date	Apr 7, 2009
Grant date	Nov 27, 2012
Priority date	—
Expiry date	Sep 4, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH04L1/0064
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for fail-safe transmission of information between a transmitter and a receiver is disclosed. At least two telegrams relating to the information are transmitted as a first telegram via a first channel and a second telegram via a second channel from the transmitter to the receiver. To identify an error affecting the information during transmission, a first identifier is generated from a first subset of the first telegram being used at the receiver to identify the information contained in the first telegram. This method is used for communication from a safety switching device to a control unit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.