METHOD AND SYSTEM FOR SAFETY-RELEVANT INPUT TO A CONTROL SYSTEM

    公开(公告)号:US20180024522A1

    公开(公告)日:2018-01-25

    申请号:US15716528

    申请日:2017-09-27

    Applicant: ABB AG

    Abstract: A system and a method for safety relevant input to a control system, the control system including a PLC which includes a non-safety control module for controlling non-safety processes, and a safety control module for controlling functional safety of processes, the system further including an operator panel for user selection of safety-related object input, wherein the system includes two communication paths between the operator panel and the safety control module, that each of the communication paths uses a different communication protocol, that each communication path goes through the non-safety control module to and from the safety control module, that the first communication path transfers object code and the second communication path transfers masked object code.

    Systems and methods for simultaneous control of safety-critical and non-safety-critical processes in automation systems using master-minion functionality

    公开(公告)号:US11487265B2

    公开(公告)日:2022-11-01

    申请号:US16677791

    申请日:2019-11-08

    Applicant: ABB AG

    Abstract: A control system is for controlling safety-critical processes, non-safety-critical processes, and/or installation components. The control system includes: at least one control unit configured to control non-safety-critical processes and/or non-safety-critical installation components, at least one safety control unit for controlling safety-critical processes and/or safety-critical installation components, and at least one input/output unit connected to the first control unit via an internal input/output bus. The control system is configured to act as communication master or as communication minion or as both in a pool having other devices that is connected via field bus, and to that end, the control system includes a master communication coupler and a minion communication coupler. The control system is modularly configurable. At least the safety control unit includes respective subunits with master functionality and subunits with minion functionalities.

    CONTROL SYSTEM FOR CONTROLLING SAFETY-CRITICAL AND NON-SAFETY-CRITICAL PROCESSES WITH MASTER-MINION FUNCTIONALITY

    公开(公告)号:US20200073355A1

    公开(公告)日:2020-03-05

    申请号:US16677791

    申请日:2019-11-08

    Applicant: ABB AG

    Abstract: A control system is for controlling safety-critical processes, non-safety-critical processes, and/or installation components. The control system includes: at least one control unit configured to control non-safety-critical processes and/or non-safety-critical installation components, at least one safety control unit for controlling safety-critical processes and/or safety-critical installation components, and at least one input/output unit connected to the first control unit via an internal input/output bus. The control system is configured to act as communication master or as communication minion or as both in a pool having other devices that is connected via field bus, and to that end, the control system includes a master communication coupler and a minion communication coupler. The control system is modularly configurable. At least the safety control unit includes respective subunits with master functionality and subunits with minion functionalities.

    Method and system for safety-relevant input to a control system

    公开(公告)号:US10353371B2

    公开(公告)日:2019-07-16

    申请号:US15716528

    申请日:2017-09-27

    Applicant: ABB AG

    Abstract: A system and a method for safety relevant input to a control system, the control system including a PLC which includes a non-safety control module for controlling non-safety processes, and a safety control module for controlling functional safety of processes, the system further including an operator panel for user selection of safety-related object input, wherein the system includes two communication paths between the operator panel and the safety control module, that each of the communication paths uses a different communication protocol, that each communication path goes through the non-safety control module to and from the safety control module, that the first communication path transfers object code and the second communication path transfers masked object code.

    SAFETY CONTROL SYSTEM AND METHOD OF OPERATION OF A SAFETY CONTROL SYSTEM

    公开(公告)号:US20170329321A1

    公开(公告)日:2017-11-16

    申请号:US15665470

    申请日:2017-08-01

    Applicant: ABB AG

    Abstract: A safety control system has a control unit with safety control logic, a safety sensor arrangement, a machine arrangement operable in different operation modes, each operation mode having a different productivity, the control unit receiving and evaluating input from the safety sensor arrangement, and, in reaction to evaluation result(s), activating an operation mode determined by the safety control logic, the safety sensor arrangement having at least two functionally redundant subsystems, control unit input including information indicating availability of the functionally redundant subsystems, the control logic being configured to activate normal operation mode with normal productivity if input indicates availability of all subsystems, activate fail-stop operation mode with zero productivity if input indicates unavailability of all subsystems, activate fail-operate operation mode with productivity less than normal but above zero if input indicates at least temporary unavailability of at least one and availability of at least another one of the subsystems.

    Safety control system and method of operation of a safety control system

    公开(公告)号:US10599137B2

    公开(公告)日:2020-03-24

    申请号:US15665470

    申请日:2017-08-01

    Applicant: ABB AG

    Abstract: A safety control system has a control unit with safety control logic, a safety sensor arrangement, a machine arrangement operable in different operation modes, each operation mode having a different productivity, the control unit receiving and evaluating input from the safety sensor arrangement, and, in reaction to evaluation result(s), activating an operation mode determined by the safety control logic, the safety sensor arrangement having at least two functionally redundant subsystems, control unit input including information indicating availability of the functionally redundant subsystems, the control logic being configured to activate normal operation mode with normal productivity if input indicates availability of all subsystems, activate fail-stop operation mode with zero productivity if input indicates unavailability of all subsystems, activate fail-operate operation mode with productivity less than normal but above zero if input indicates at least temporary unavailability of at least one and availability of at least another one of the subsystems.

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