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    Method for operating a network participant in an automation communication network
    3.
    发明授权
    Method for operating a network participant in an automation communication network 有权

    公开(公告)号：US11888585B2

    公开(公告)日：2024-01-30

    申请号：US17316254

    申请日：2021-05-10

    Applicant: Beckhoff Automation GmbH

    Inventor： Erik Vonnahme

    IPC: G06F1/12 ,  H04B10/61 ,  H04J3/06 ,  H04L69/28

    CPC classification number: H04J3/0644 ,  H04J3/0661 ,  H04L69/28

    Abstract: A network subscriber of an automation communication network is provided to exchange data with further network subscribers in the automation communication network at a predetermined clock frequency. The network subscriber has an internal clock for synchronizing the data exchange with at least one other network subscriber. The internal clock is embodied to provide a time as an integer count value. The clock frequency is determined in such a way that a period duration per clock pulse cannot be represented as an integer count value by the internal clock. A method of operating the network subscriber in the automation communication network comprises the following method step: the internal clock is incremented with a predetermined sequence of integer increments. The sequence of integer increments is predetermined such that a sum of the integer increments corresponds to an integer multiple of the period duration.

    AUTOMATION SYSTEM HAVING A MASTER-SUBSCRIBER STRUCTURE, DISTRIBUTOR AND METHOD FOR TELEGRAM TRANSMISSION
    4.
    发明公开
    AUTOMATION SYSTEM HAVING A MASTER-SUBSCRIBER STRUCTURE, DISTRIBUTOR AND METHOD FOR TELEGRAM TRANSMISSION 审中-公开

    公开(公告)号：US20230231736A1

    公开(公告)日：2023-07-20

    申请号：US18186649

    申请日：2023-03-20

    Applicant: Beckhoff Automation GmbH

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

    IPC: H04L12/40

    CPC classification number: H04L12/40006 ,  H04L12/40202 ,  H04L12/40195 ,  H04L2012/421

    Abstract: An automation system has a plurality of subscribers including a first master unit, first distributor, second master unit, second distributor, and at least another subscriber unit. First and second transmitting/receiving devices of the first and second distributor are connected via a ring-shaped data bus. In a first mode, the first distributor forwards telegrams received from the first master unit to the first transmitting/receiving device, and forwards telegrams received by the second transmitting/receiving device to the first master unit. The second distributor also forwards first telegrams received by the first transmitting/receiving device to the second transmitting/receiving device. In a second mode, the second distributor forwards telegrams received by the second master unit to the second transmitting/receiving device, and the second distributor forwards telegrams received by the first transmitting/receiving device to the second master unit. The first distributor also forwards telegrams received by the second transmitting/receiving device to the first transmitting/receiving device.

    Data transmission method and communications network
    5.
    发明授权
    Data transmission method and communications network 有权

    公开(公告)号：US11050585B2

    公开(公告)日：2021-06-29

    申请号：US16847898

    申请日：2020-04-14

    Applicant: Beckhoff Automation GmbH

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

    IPC: H04L29/06 ,  H04L12/40 ,  H04L12/403 ,  H04L12/46

    Abstract: A communications network having a master subscriber M and at least one slave subscriber. At least one distribution node CU1, CU2, CU3, CU4 is provided which has a plurality of input/output interfaces, each of which is connected to a network segment, the master subscriber M arranged in a first network segment M1 and the slave subscriber arranged in a second network segment S1, S2, S3, S4, S5. Data is exchanged between the master subscriber M and the slave subscriber in the form of telegrams initiated by the master subscriber. The telegrams to be sent from the slave subscriber to the master subscriber are each assigned control data containing a forwarding time information when the corresponding telegram is to be output from the distribution node via the input/output interface in the direction of the first network segment comprising the master subscriber, the forwarding time information determined by the master subscriber M.

    COMMUNICATIONS NETWORK, METHOD FOR OPERATING SAME, AND PARTICIPANTS IN A COMMUNICATIONS NETWORK
    6.
    发明申请
    COMMUNICATIONS NETWORK, METHOD FOR OPERATING SAME, AND PARTICIPANTS IN A COMMUNICATIONS NETWORK 审中-公开

    公开(公告)号：US20180241585A1

    公开(公告)日：2018-08-23

    申请号：US15959041

    申请日：2018-04-20

    Applicant: BECKHOFF AUTOMATION GMBH

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

    IPC: H04L12/40

    Abstract: A communications network comprises a plurality of participants. A first participant transmits a message repeating sequence of N≥2 successive messages to a second participant. An action which can be performed by the second participant is assigned to each message in the sequence. The first participant begins to transmit one of the N messages at N successive transmission times T_I (I=0, . . . , N−1). Each of the N messages contains a field defining a waiting time assigned to the respective message W_I=T_(N−1)−T_I+ΔW_I (I=0, . . . ,N−1), where ΔW_I is a non-negative tolerance time. The second participant selects one message from among the messages in the sequence which are successfully received by the second participant as a useful message, measures a time elapsed since reception of the useful message, and performs the action assigned to the useful message when the elapsed time has reached the assigned waiting time.

    NETWORK SUBSCRIBER
    8.
    发明申请
    NETWORK SUBSCRIBER 审中-公开
    网络订阅者

    公开(公告)号：US20160132446A1

    公开(公告)日：2016-05-12

    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 ,  G06F1/10

    CPC classification number: G06F13/362 ,  G06F1/10 ,  H04L12/40013

    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.

    Abstract translation: 网络用户包括多个单独的功能单元，每个单独的功能单元包括应用接口。 网络用户还包括网络用户，其至少包括共享功能单元，用于建立物理连接的第一接口和用于建立另外的物理连接的第二接口。

    METHOD FOR PROCESSING TELEGRAMS IN AN AUTOMATION NETWORK, AUTOMATION NETWORK, MASTER SUBSCRIBER AND SUBSCRIBER
    9.
    发明申请
    METHOD FOR PROCESSING TELEGRAMS IN AN AUTOMATION NETWORK, AUTOMATION NETWORK, MASTER SUBSCRIBER AND SUBSCRIBER 有权

    公开(公告)号：US20220247728A1

    公开(公告)日：2022-08-04

    申请号：US17686366

    申请日：2022-03-03

    Applicant: Beckhoff Automation GmbH

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

    IPC: H04L9/40 ,  H04L12/40

    Abstract: A method for processing telegrams in an automation network provides a master subscriber to at least partially encrypt and output telegrams, respectively, to another subscriber. The other subscriber comprises an input port, a receiving logic connected to the input port, a decryption unit connected to the receiving logic, and a processing unit connected to the decryption unit and the receiving logic. The receiving logic is configured, when a telegram at least partially encrypted by the master subscriber is present at the input port, to forward an encrypted portion of the telegram to the decryption unit. The decryption unit is configured to decrypt the encrypted portion of the telegram with a key, and to forward the encrypted portion to the processing unit for processing. If an unencrypted telegram is present at the input port, the receiving logic is configured to forward the unencrypted telegram to the processing unit for processing.

    System and method for packet transmission in a communications network
    10.
    发明授权
    System and method for packet transmission in a communications network 有权

    公开(公告)号：US10735219B2

    公开(公告)日：2020-08-04

    申请号：US15959041

    申请日：2018-04-20

    Applicant: BECKHOFF AUTOMATION GMBH

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

    IPC: H04L12/40

    Abstract: A communications network comprises a plurality of participants. A first participant transmits a message repeating sequence of N≥2 successive messages to a second participant. An action which can be performed by the second participant is assigned to each message in the sequence. The first participant begins to transmit one of the N messages at N successive transmission times T_I (I=O, . . . , N−1). Each of the N messages contains a field defining a waiting time.The second participant selects one message from among the messages in the sequence which are successfully received by the second participant as a useful message, measures a time elapsed since reception of the useful message, and performs the action assigned to the useful message when the elapsed time has reached the assigned waiting time.

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