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公开(公告)号：US20220263901A1
公开(公告)日：2022-08-18
申请号：US17733872
申请日：2022-04-29
Applicant: Beckhoff Automation GmbH
Inventor： Karl Weber
Abstract: A method for real-time data communication between subscribers in an automation network is provided. The automation network includes an active subscriber, a plurality of passive subscribers and at least a connecting unit. The method includes the active subscriber arranging n data packets to be transmitted in a transmission order with a total occupancy time duration of the transmission order, performing an optimizing procedure for determining an optimized transmission order with minimum total occupancy time, and transmitting the n data packets in the optimized transmission order to the passive subscribers. An active subscriber for carrying out the method and an automation network comprising an active subscriber are also provided.
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公开(公告)号：US20220103337A1
公开(公告)日：2022-03-31
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
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.
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公开(公告)号：US12003613B2
公开(公告)日：2024-06-04
申请号：US17685978
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 , Guido Beckmann , Karl Weber
CPC classification number: H04L7/10 , H04J3/0667 , H04L7/0012 , H04L2012/4026
Abstract: A method for synchronizing time in an Ethernet-based network having a master network subscriber and a slave network subscriber includes sending out a first telegram via the master network subscriber, where the slave subscriber receives the first telegram at a first receipt time value of a local system time and stores the first receipt time value. The method can also include reading out the first receipt time value via the master subscriber, sending out a second telegram by the master subscriber, where the slave subscriber receives the second telegram at a second receipt time value of the local system time and stores the second receipt time value, and reading out the second receipt time value via the master network subscriber. A speed parameter of the local system time can be calculated from the receipt time values via the master network subscriber, and transmitted to the slave subscriber.
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Patent Agency Ranking
公开(公告)号：US10484138B2
公开(公告)日：2019-11-19
申请号：US15800669
申请日：2017-11-01
Applicant: BECKHOFF AUTOMATION GMBH
Inventor： Holger Büttner , Florian Essler , Rainer Hoffmann , Dirk Janssen , Karl Weber
IPC: H04L1/08 , H04L1/18 , H04L1/16 , H04L12/741
Abstract: A first communication subscriber transmits a first data packet comprising data and an identification character to the second communication subscriber. The first communication subscriber and the second communication subscriber respectively determine a first and a second acknowledgement character on the basis of the identification character. The second communication subscriber transmits a second data packet comprising the second acknowledgement character back to the first communication subscriber. The first communication subscriber can thus check, on the basis of the second acknowledgement character, whether the first data packet arrived at the second communication subscriber.
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公开(公告)号：US20180123738A1
公开(公告)日：2018-05-03
申请号：US15800669
申请日：2017-11-01
Applicant: BECKHOFF AUTOMATION GMBH
Inventor： Holger Büttner , Florian Essler , Rainer Hoffmann , Dirk Janssen , Karl Weber
IPC: H04L1/08 , H04L12/741
Abstract: A first communication subscriber transmits a first data packet comprising data and an identification character to the second communication subscriber. The first communication subscriber and the second communication subscriber respectively determine a first and a second acknowledgement character on the basis of the identification character. The second communication subscriber transmits a second data packet comprising the second acknowledgement character back to the first communication subscriber. The first communication subscriber can thus check, on the basis of the second acknowledgement character, whether the first data packet arrived at the second communication subscriber.
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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
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.
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公开(公告)号：US11695833B2
公开(公告)日：2023-07-04
申请号：US17733872
申请日：2022-04-29
Applicant: Beckhoff Automation GmbH
Inventor： Karl Weber
CPC classification number: H04L67/12 , G05B19/056 , G05B2219/1134 , G05B2219/1214 , G05B2219/15018
Abstract: A method for real-time data communication between subscribers in an automation network is provided. The automation network includes an active subscriber, a plurality of passive subscribers and at least a connecting unit. The method includes the active subscriber arranging n data packets to be transmitted in a transmission order with a total occupancy time duration of the transmission order, performing an optimizing procedure for determining an optimized transmission order with minimum total occupancy time, and transmitting the n data packets in the optimized transmission order to the passive subscribers. An active subscriber for carrying out the method and an automation network comprising an active subscriber are also provided.
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公开(公告)号：US20220271913A1
公开(公告)日：2022-08-25
申请号：US17685978
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 , Guido Beckmann , Karl Weber
Abstract: A method for synchronizing time in an Ethernet-based network having a master network subscriber and a slave network subscriber includes sending out a first telegram via the master network subscriber, where the slave subscriber receives the first telegram at a first receipt time value of a local system time and stores the first receipt time value. The method can also include reading out the first receipt time value via the master subscriber, sending out a second telegram by the master subscriber, where the slave subscriber receives the second telegram at a second receipt time value of the local system time and stores the second receipt time value, and reading out the second receipt time value via the master network subscriber. A speed parameter of the local system time can be calculated from the receipt time values via the master network subscriber, and transmitted to the slave subscriber.
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