Patent · US Active

Communication system having a master/slave structure

US8234427B2 · kind B2 · utility

2Cited by

14References

9Claims

0Family size

Assignee

Beckhoff Automation GmbH · DE

Inventors

Holger Büttner · Verl, DE
Karl Weber · Witten, DE

Key dates

Filing date	May 21, 2009
Grant date	Jul 31, 2012
Priority date	—
Expiry date	May 21, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04L12/423
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A communication system comprising a master unit and a plurality of slave units. In error mode, e.g. when a path error or a complete failure of a subscriber occurs, data transmission is carried out in a loop, starting from the master unit, via a first communication path and a second communication path.

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