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公开(公告)号：US10732594B2
公开(公告)日：2020-08-04
申请号：US15419661
申请日：2017-01-30
Applicant: BECKHOFF AUTOMATION GMBH
Inventor： Jens Sachs , Frank Schiller , Holger Büttner
IPC: G05B19/042 , G05B19/05 , H04L1/00
Abstract: A method operates a safety control in an automation network having a master subscriber which carries out the safety control, at least one first slave subscriber which is assigned a first safety integrity level, and at least one second slave subscriber which is assigned a second safety integrity level. The first safety integrity level and the second safety integrity level differ from each other. A first safety code determination method is assigned to the first slave subscriber and a second safety code determination method is assigned to the second slave subscriber. The first safety code determination method and the second safety code determination method differ from each other. The master subscriber and the first slave subscriber use the first safety code determination method for interchanging a safety data block. The master subscriber and the second slave subscriber use the second safety code determination method for interchanging a safety data block.
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公开(公告)号：US20170139388A1
公开(公告)日：2017-05-18
申请号：US15419661
申请日：2017-01-30
Applicant: BECKHOFF AUTOMATION GMBH
Inventor： Jens Sachs , Frank Schiller , Holger Büttner
IPC: G05B19/042 , G05B19/05
Abstract: A method operates a safety control in an automation network having a master subscriber which carries out the safety control, at least one first slave subscriber which is assigned a first safety integrity level, and at least one second slave subscriber which is assigned a second safety integrity level. The first safety integrity level and the second safety integrity level differ from each other. A first safety code determination method is assigned to the first slave subscriber and a second safety code determination method is assigned to the second slave subscriber. The first safety code determination method and the second safety code determination method differ from each other. The master subscriber and the first slave subscriber use the first safety code determination method for interchanging a safety data block. The master subscriber and the second slave subscriber use the second safety code determination method for interchanging a safety data block.
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公开(公告)号：US10438002B2
公开(公告)日：2019-10-08
申请号：US14513282
申请日：2014-10-14
Applicant: Beckhoff Automation GmbH
Inventor： Felix Wieczorek , Frank Schiller
Abstract: A communication subscriber for a field-bus system for transmitting data, comprises a safety layer with an error-safety layer protecting the data against random data transmission errors and an information-security layer protecting against manipulation of data and/or against unauthorized reading of data. The communication subscriber is configured during transmission mode to process the data to be transmitted first by means of the error-safety layer and then by means of the information-security layer, and during receipt mode to process the data first by means of the information-security layer and then by means of the error-safety layer.
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公开(公告)号：US09407244B2
公开(公告)日：2016-08-02
申请号：US14578780
申请日：2014-12-22
Applicant: Beckhoff Automation GmbH
Inventor： Frank Schiller , Martin Früchtl
Abstract: A device comprises a first time generator for generating an internal time signal, a unit for receiving an external time signal at discrete synchronization times and a generator unit for producing a generated time signal, which generator unit is designed to calculate on the basis of an algorithm the generated time signal at a determination time between two synchronization times from a value of the external time signal at a previous synchronization time and from a value of the internal time signal at the determination time. Said algorithm includes an assumption of a proportionality between an advance in the internal time signal and an advance in the external time signal.
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