Network, head subscriber and data transmission method

US9544258B2 · kind B2 · utility

Assignee

• Beckhoff Automation GmbH · DE

Inventors

• Thorsten Bunte · Gütersloh, DE
• Holger Büttner · Verl, DE
• Erik Vonnahme · Salzkotten, DE
• Dirk Janssen · Verl, DE
• Thomas Rettig · Rheda-Wiedenbrück, DE
• Hans Beckhoff · Verl, DE

Key dates

• Filing date: Jun 23, 2015
• Grant date: Jan 10, 2017
• Expiry date: Jun 23, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L51/214
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

In a network, a control node is connected to a plurality of network subscribers via a closed ring-shaped data path, wherein the network subscribers form a chain, starting from the control node, with a head subscriber as a termination for the chain. The ring-shaped data path transits through the network subscribers on an outbound route and an inbound route, wherein the network subscribers are designed to perform data interchange both on the outbound route and on the inbound route with data messages circulating on the ring-shaped data path. The control node is additionally designed such that it outputs data messages with an identifier on the data path, wherein the head subscriber has a filter function to use a prescribed identifier to block the further transport of data messages with the corresponding identifier on the inbound route following transit of data messages through the head subscriber on the outbound route.