公开(公告)号：US10572428B2

公开(公告)日：2020-02-25

申请号：US15928044

申请日：2018-03-21

Applicant: BECKHOFF AUTOMATION GMBH

Inventor： Erik Vonnahme ,  Christopher Pohl

IPC: G06F13/40 ,  H04L12/10 ,  H04L12/40 ,  H01R13/66

Abstract: A microcontroller unit of an input/output module checks whether a communication connection can be set up from the microcontroller unit to a communication subscriber of a data cable plugged into the one portion of a electrical plug connection of the input/output module, wherein the microcontroller unit of the input/output module actuates DC voltage supplies of the input/output module such that the DC voltage supplies apply a respective DC voltage to applicable electrical contacts of electrical contact elements of the input/output module only if the check has revealed that a communication connection has been able to be set up to the communication subscriber of the data cable.

公开(公告)号：US10271249B2

公开(公告)日：2019-04-23

申请号：US15043886

申请日：2016-02-15

Applicant: Beckhoff Automation GmbH & Co. KG

Inventor： Thorsten Bunte ,  Holger Büttner ,  Erik Vonnahme ,  Dirk Janssen ,  Thomas Rettig ,  Hans Beckhoff

IPC: H04L5/14 ,  H04L29/08 ,  H04W36/00 ,  H04L12/707

Abstract: A network includes a first network participant connected via a first connection to a further network participant. The first network participant receives a data message containing information that a parameter must be set to a first value, via the first connection. The first network participant checks whether it is connected via a second connection to a still further network, and whether the parameter is not set to the first value in the second connection. In this case, the first network participant forwards the data message via the second connection, clearing down the second connection, and re-establishes the second connection, where the parameter for the second connection is set to the first value.

公开(公告)号：US10116465B2

公开(公告)日：2018-10-30

申请号：US14739416

申请日：2015-06-15

Applicant: Beckhoff Automation GmbH

Inventor： Thorsten Bunte ,  Holger Buettner ,  Erik Vonnahme ,  Dirk Janssen ,  Thomas Rettig ,  Hans Beckhoff

IPC: G06F15/16 ,  H04L12/46 ,  H04L12/40

Abstract: A method for operating a network that has a network subscriber that is connected to a superordinate bus and to a subordinate bus comprises steps for the reception of a first superordinate data message by the network subscriber via the superordinate bus, the extraction of first data from the first superordinate data message by the network subscriber and for the transmission of a first subordinate data message by the network subscriber via the subordinate bus. In one case, the first subordinate data message comprises the first data.

公开(公告)号：US10089268B2

公开(公告)日：2018-10-02

申请号：US14996798

申请日：2016-01-15

Applicant: BECKHOFF AUTOMATION GMBH

Inventor： Thorsten Bunte ,  Holger Buettner ,  Erik Vonnahme ,  Dirk Janssen ,  Thomas Rettig ,  Hans Beckhoff

IPC: G06F13/362 ,  H04L12/40 ,  G06F1/10

Abstract: A network subscriber comprises a plurality of individual functional units, each individual functional unit comprising an application interface. The network subscriber further comprises a network subscriber comprises at least a shared functional unit, a first interface for establishing a physical connection and a second interface for establishing a further physical connection.

公开(公告)号：US09991981B2

公开(公告)日：2018-06-05

申请号：US14992597

申请日：2016-01-11

Applicant: BECKHOFF AUTOMATION GMBH

Inventor： Thorsten Bunte ,  Holger Büttner ,  Dirk Janssen ,  Erik Vonnahme ,  Thomas Rettig ,  Hans Beckhoff

IPC: H04J3/06 ,  H04L12/64

CPC classification number: H04J3/0658 ,  H04J3/0664 ,  H04L12/6418

Abstract: A method for operating a node in a communications network comprises the following steps: The node receives a reference time via the communications network. A transmit clock of the node, which was determined for an earlier clock cycle on the basis of a local clock of the node, is compared with the reference time. The local clock of the node is corrected on the basis of the comparison result. On the basis of the corrected local clock a transmit clock is determined to be used by the node for the current clock cycle.

公开(公告)号：US12069155B2

公开(公告)日：2024-08-20

申请号：US17549819

申请日：2021-12-13

Applicant: Beckhoff Automation GmbH

Inventor： Holger Büttner ,  Dirk Janssen ,  Erik Vonnahme ,  Hans Beckhoff ,  Thomas Rettig ,  Thorsten Bunte ,  Johannes Beckhoff ,  Guido Beckmann ,  Karl Weber

IPC: H04L7/04 ,  H04L12/40

CPC classification number: H04L7/04 ,  H04L12/40 ,  H04L2012/4026

Abstract: A method for synchronizing time in an Ethernet-based network having a master network subscriber, a first segment and a second segment. Each segment has at least one network subscriber. The second segment is connected to the first segment by a first network distributor, arranged in the second segment. The method comprises steps for sending out a synchronization telegram addressed to the second segment by the master network subscriber, the synchronization telegram being of the first type; receiving the synchronization telegram by the first network distributor, for conversion into a second type; forwarding the synchronization telegram to a network distributor of the second segment, by the first network distributor; reading out a synchronization value stored in the synchronization telegram by the first network distributor of the second segment; and adjusting a speed of a local system time of the network distributor of the second segment, using the synchronization value.

公开(公告)号：US20220236712A1

公开(公告)日：2022-07-28

申请号：US17723696

申请日：2022-04-19

Applicant: Beckhoff Automation GmbH

Inventor： Holger Büttner ,  Dirk Janssen ,  Erik Vonnahme ,  Thorsten Bunte ,  Thomas Rettig

IPC: G05B19/05 ,  H04L12/42

Abstract: An automation network comprises at least one master subscriber, at least one switch, and at least one subscriber. The master subscriber comprises master ports, the switch comprises switching ports, and the subscriber comprises ports, each comprising a transmitter and a receiver. The master subscriber is configured to output first and second telegrams to first and second switching ports via first and second master ports and first and second master communication paths. The switch is configured to forward the first telegram to a first port of a subscriber via a first communication path, and to forward the second telegram to a second port of a subscriber via a second communication path. In error mode, the switch and the subscriber are configured to return the first telegram to the master subscriber via the first master port, and/or to return the second telegram to the master subscriber via the second master port.

公开(公告)号：US20220103485A1

公开(公告)日：2022-03-31

申请号：US17546907

申请日：2021-12-09

Applicant: Beckhoff Automation GmbH

Inventor： Holger Büttner ,  Dirk Janssen ,  Erik Vonnahme ,  Hans Beckhoff ,  Thomas Rettig ,  Thorsten Bunte ,  Johannes Beckhoff ,  Guido Beckmann

IPC: H04L47/33 ,  H04L47/2416 ,  H04L45/00

Abstract: A method is described for operating a communication network with a plurality of subscribers. Data exchange between the subscribers takes place in the form of telegrams, which comprise data sections. The subscribers interpret an end portion of the telegrams as a check value for the absence of errors in preceding data sections. The telegrams are processed in pass-through, so that the telegrams are forwarded to a respective next subscriber while being received. If an error is detected when receiving a telegram, the subscribers send the telegram to the next subscriber with a characterizing data section at the end, so that the telegram has an end portion representing an invalid check value. The telegram is characterized by the characterizing data section, which is part of the end portion, so that the telegram is not to be considered as an initial error but as a subsequent error.

公开(公告)号：US20200336333A1

公开(公告)日：2020-10-22

申请号：US16921058

申请日：2020-07-06

Applicant: Beckhoff Automation GmbH

Inventor： Erik Vonnahme ,  Thorsten Bunte ,  Benjamin Koch

IPC: H04L12/40 ,  H04L5/00 ,  H04L5/22 ,  H04L29/06

Abstract: A method of operating a network subscriber comprises receiving an input-data stream containing an input-transmission frame according to a field-bus protocol, where the input-data stream is received in chronologically successive data units having a defined processing width, decoding fields of the input-transmission frame by a plurality of field-processing units arranged in series, each field-processing unit decoding a predetermined field of the input-transmission frame, and generating an output-data stream comprising an output transmission frame according to the field-bus protocol from the input-data stream.

公开(公告)号：US10735218B2

公开(公告)日：2020-08-04

申请号：US16507210

申请日：2019-07-10

Applicant: Beckhoff Automation GmbH

Inventor： Thorsten Bunte ,  Holger Büttner ,  Dirk Janssen ,  Thomas Rettig ,  Hans Beckhoff ,  Erik Vonnahme

IPC: H04L12/40 ,  H04L12/403

Abstract: In an automation-communication network, at least one distribution node comprises input/output interfaces each connected to at least one network segment. In a first network segment a first subscriber and in a second network segment a second subscriber are arranged. Data are exchanged between the first and the second subscriber by telegrams realized as scheduled telegrams and unscheduled telegrams. The distribution node receives an unscheduled telegram on an input/output interface and sends an unscheduled telegram on a further input/output interface. The distribution node determines a transmission duration for transmission of the unscheduled telegram. The distribution node transmits the unscheduled telegram. Prior to transmission, the distribution node deposits a first telegram information in a data field. The distribution node fragments the unscheduled telegram if the telegram cannot be transmitted within a time slot. Prior to transmission of the unscheduled telegram, the distribution node enters a second telegram information into the data field.