Data transmission method, segment telegram and automation communication network

US12250092B2 · kind B2 · utility

Assignee

• Beckhoff Automation GmbH · DE

Inventors

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

Key dates

• Filing date: Mar 14, 2022
• Grant date: Mar 11, 2025
• Expiry date: Jun 27, 2043

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2012/4026
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

In an automation communication network, a distribution node is provided with a plurality of input/output interfaces, each connected to a network segment having at least one subscriber. The network segments are each assigned segment telegrams for processing by the subscriber. The segment telegrams have a data field with sequence information indicating the priority of a subsequent segment telegram. The distribution node is configured to receive the segment telegram on an input/output interface and transmit it according to a routing specification on a further input/output interface. The distribution node blocks the input/output interface on which the segment telegram has been transmitted for further transmission if the telegram sequence information indicates a priority for the subsequent segment telegram with the same routing specification, which is higher than the priority of other telegrams intended for transmission on the input/output interface, in order to send the subsequent segment telegram on the blocked input/output interface.