Patent · US Active

Communication device for an industrial communication network which can be operated in a redundant manner and method for operating a communication device

US9166922B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hermann Angst · Karlsruhe, DE
Franz-Josef Götz · Heideck, DE
Michael J. Kasper · Portland, US
Joachim Lohmeyer · Hilpoltstein, DE

Key dates

Filing date	Apr 24, 2013
Grant date	Oct 20, 2015
Priority date	—
Expiry date	Dec 1, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH04L47/34
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A communication device for an industrial communication network which can be operated in a redundant manner comprises a first and a second transmitting and receiving unit that transmit data packets in a bumpy or bumpless manner inside the industrial communication network and are selectively changeable over to a bumpy or bumpless transmission mode. An evaluation unit is connected to the first and/or second transmitting and receiving unit(s) and detects data packets to be transmitted in the bumpy or bumpless manner inside the industrial communication network. Redundancy handling and filter units for received redundant data packets are deactivated when a data packet to be transmitted in the bumpy manner is detected. A memory unit is assigned to the first and/or second transmitting and receiving unit(s) and buffers at least one data packet to be transmitted in the bumpy manner during a predefined period of time in the bumpy transmission mode.

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