公开(公告)号：US20170171096A1

公开(公告)日：2017-06-15

申请号：US15428926

申请日：2017-02-09

Applicant: BECKHOFF AUTOMATION GMBH

Inventor： THORSTEN BUNTE ,  Holger Büttner ,  Erik Vonnahme ,  Dirk Janssen ,  Thomas Rettig ,  Hans Beckhoff

IPC: H04L12/875 ,  H04L12/741 ,  H04L12/927 ,  H04L29/08

CPC classification number: H04L47/56 ,  H04L12/40006 ,  H04L12/4625 ,  H04L45/745 ,  H04L47/625 ,  H04L47/628 ,  H04L47/801 ,  H04L47/822 ,  H04L47/826 ,  H04L49/206 ,  H04L49/351 ,  H04L67/125 ,  H04L2012/4026

Abstract: A distribution node for an automation network comprises at least two input/output interfaces for transmitting and receiving real-time-relevant and non-real-time-relevant data packets, and a switching device connected to the input/output interfaces. The switching device forwards data packets received via an input/output interface via a further input/output interface using a switching table, where the switching table contains at least a data packet identifier and a transmission time in a data transfer cycle for each real-time-relevant data packet. Inter alia, the switching device can detect a data packet identifier on reception of a real-time-relevant data packet, and output the real-time-relevant data packet at the transmission time allocated to the detected data packet identifier in the switching table via an input/output interface as a transmission interface.