Patent · US Active

Method for data transmission

US7418647B2 · kind B2 · utility

0Cited by

2References

18Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Herbert Barthel · Herzogenaurach, DE
Frank Schiller · Amberg, DE
Edgar Sigwart · Amberg, DE

Key dates

Filing date	May 3, 2005
Grant date	Aug 26, 2008
Priority date	—
Expiry date	Oct 3, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH04L2001/0094
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A one-channel transmission of information on a bus system within an automation system is provided. Data transmission, in compliance with safety integrity level 2 according to IEC 618508, is achieved with reduced hardware outlay. The information to be transmitted via the bus system contains net data, which is present within a processing unit in two channels in the form of a first data set and in the form of a second data set that differs from the first data set at least in the form of representation. The processing unit generates a transmission telegram suitable for one-channel transmission on the bus system from the two data sets, whereby the net data present in the form of the first data set is stored in a first data area of the transmission telegram and a checksum generated on the basis of the second data set is stored in a second data area of the transmission telegram.

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