ES2109507T3 - Metodo de resolucion de señales de entrada para ordenadores de control de procesos activamente redundantes. - Google Patents

Metodo de resolucion de señales de entrada para ordenadores de control de procesos activamente redundantes.

Info

Publication number
ES2109507T3
ES2109507T3 ES93916567T ES93916567T ES2109507T3 ES 2109507 T3 ES2109507 T3 ES 2109507T3 ES 93916567 T ES93916567 T ES 93916567T ES 93916567 T ES93916567 T ES 93916567T ES 2109507 T3 ES2109507 T3 ES 2109507T3
Authority
ES
Spain
Prior art keywords
process control
input signals
exceeded
control cycle
default tolerance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES93916567T
Other languages
English (en)
Inventor
Eloy Baca Jr
Donald J Grinwis
Wayne Powell Dupree
Oscar E Schulze
Douglas Peter Pelletier
Johannes C Kanse
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Application granted granted Critical
Publication of ES2109507T3 publication Critical patent/ES2109507T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1415—Saving, restoring, recovering or retrying at system level
    • G06F11/1443—Transmit or communication errors
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
    • G05B19/054—Input/output
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric
    • G05B9/03—Safety arrangements electric with multiple-channel loop, i.e. redundant control systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1629—Error detection by comparing the output of redundant processing systems
    • G06F11/1633—Error detection by comparing the output of redundant processing systems using mutual exchange of the output between the redundant processing components
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1629—Error detection by comparing the output of redundant processing systems
    • G06F11/165—Error detection by comparing the output of redundant processing systems with continued operation after detection of the error
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/14—Plc safety
    • G05B2219/14035—Single analog I-O IN, dual signal processing, dual plc
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/14—Plc safety
    • G05B2219/14077—Detect difference in signal between identical channels, if plausible
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/14—Plc safety
    • G05B2219/14078—If fault in next cycle persists, declare channel faulty
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/14—Plc safety
    • G05B2219/14079—If signal out of range, use for next cycle previous detected signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Hardware Redundancy (AREA)
  • Multi Processors (AREA)
  • Safety Devices In Control Systems (AREA)
  • Control By Computers (AREA)

Abstract

SE PRESENTA UN METODO DE RESOLUCION DE SEÑALES DE ENTRADA EN UN SISTEMA DE CONTROL DE PROCESOS EN EL QUE CADA UNO DE LOS ORDENADORES DE CONTROL DE PROCESO ACTIVAMENTE REDUNDANTE REALIZA UN PROCESO DE ARBITRAJE COMUN SOBRE LAS SEÑALES DE ENTRADA CORRESPONDIENTES. BLOQUES DE SEÑALES DE ENTRADA CORRESPONDIENTES SON MUTUAMENTE INTERCAMBIADOS POR LOS ORDENADORES DE CONTROL DE PROCESOS ACTIVAMENTE REDUNDANTES, Y SE REALIZA UNA COMPROBACION INICIAL PARA DETERMINAR SI ESTAS SEÑALES DE ENTRADA SON VALIDAS. PARA LAS SEÑALES DE ENTRADA QUE REPRESENTAN VALORES ANALOGOS VALIDOS, SE HACE UNA DETERMINACION DE CUANDO SE HA EXCEDIDO UNA TOLERANCIA PREDEFINIDA ENTRE LAS SEÑALES DE ENTRADA CORRESPONDIENTES EN EL CICLO DE CONTROL DE PROCESO ACTUAL. CUANDO LA TOLERANCIA PREDEFINIDA HA SIDO EXCEDIDA, ENTONCES SE REALIZA UNA COMPROBACION PARA DETERMINAR SI LA TOLERANCIA PREDEFINIDO HABIA SIDO EXCEDIDA EN EL ULTIMO CICLO DE CONTROL DE PROCESO. SI LA TOLERANCIA PREDEFINIDA NO FUE EXCEDIDA EN EL ULTIMO CICLO DE CONTROL DE PROCESO, ENTONCES EL VALOR DE ENTRADA ANALOGO SELECCIONADO DURANTE EL ULTIMO CICLO DE CONTROL DE PROCESO SERA EMPLEADO EN EL CICLO DE CONTROL DE PROCESO ACTUAL. SI LA TOLERANCIA PREDEFINIDO FUE EXCEDIDA EN LOS CICLOS DE CONTROL DE PROCESO TANTO ACTUAL COMO ULTIMO, ENTONCES SE UTILIZARA UN CRITERIO DE MAGNITUD PREDETERMINADO PARA DETERMINAR EL VALOR DE ENTRADA ANALOGA PARA SU USO EN LA TOMA DE DECISIONES DE CONTROL DEL PROCESO. TAMBIEN SE SUMINISTRARA UNA INDICACION EN CADA UNO DE LOS ORDENADORES DE CONTROL ACTIVAMENTE REDUNDANTES PARA IDENTIFICAR CUAL DE LAS SEÑALES DE ENTRADA CORRESPONDIENTES FUE SELECCIONADA POR ESE ORDENADOR DE CONTROL DE PROCESOS.
ES93916567T 1992-08-04 1993-06-16 Metodo de resolucion de señales de entrada para ordenadores de control de procesos activamente redundantes. Expired - Lifetime ES2109507T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/925,089 US5583757A (en) 1992-08-04 1992-08-04 Method of input signal resolution for actively redundant process control computers

Publications (1)

Publication Number Publication Date
ES2109507T3 true ES2109507T3 (es) 1998-01-16

Family

ID=25451200

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93916567T Expired - Lifetime ES2109507T3 (es) 1992-08-04 1993-06-16 Metodo de resolucion de señales de entrada para ordenadores de control de procesos activamente redundantes.

Country Status (11)

Country Link
US (1) US5583757A (es)
EP (1) EP0654154B1 (es)
JP (1) JPH08500686A (es)
KR (1) KR100302218B1 (es)
AU (1) AU4637593A (es)
CA (1) CA2139563A1 (es)
DE (1) DE69315343T2 (es)
ES (1) ES2109507T3 (es)
HK (1) HK1005213A1 (es)
MX (1) MX9304694A (es)
WO (1) WO1994003846A1 (es)

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US6157956A (en) * 1997-03-28 2000-12-05 Global Maintech, Inc. Heterogeneous computing interface apparatus and method using a universal character set
US6748451B2 (en) 1998-05-26 2004-06-08 Dow Global Technologies Inc. Distributed computing environment using real-time scheduling logic and time deterministic architecture
US6647301B1 (en) 1999-04-22 2003-11-11 Dow Global Technologies Inc. Process control system with integrated safety control system
DE10007008B4 (de) * 2000-02-16 2007-03-08 Daimlerchrysler Ag Verfahren zur Überwachung einer Datenverarbeitungseinrichtung
US6735501B1 (en) * 2000-03-30 2004-05-11 Space Systems/Loral, Inc Satellite commanding using remotely controlled modulation of satellite on-board telemetry parameters
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US6813527B2 (en) * 2002-11-20 2004-11-02 Honeywell International Inc. High integrity control system architecture using digital computing platforms with rapid recovery
JP2008518306A (ja) * 2004-10-25 2008-05-29 ローベルト ボッシュ ゲゼルシャフト ミット ベシュレンクテル ハフツング 少なくとも２つの処理ユニットを有する計算機システムにおける切り替えおよび信号比較の方法および装置
DE102005037242A1 (de) * 2004-10-25 2007-02-15 Robert Bosch Gmbh Verfahren und Vorrichtung zur Umschaltung und zum Signalvergleich bei einem Rechnersystem mit wenigstens zwei Verarbeitungseinheiten
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US20060155770A1 (en) * 2004-11-11 2006-07-13 Ipdev Co. System and method for time-based allocation of unique transaction identifiers in a multi-server system
US20060184027A1 (en) * 2005-01-06 2006-08-17 Kabushiki Kaisha Toshiba Diagnostic imaging system, magnetic resonance imaging apparatus, and method of diagnostic imaging
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US11199824B2 (en) 2012-01-17 2021-12-14 Fisher-Rosemount Systems, Inc. Reducing controller updates in a control loop
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Also Published As

Publication number Publication date
JPH08500686A (ja) 1996-01-23
MX9304694A (es) 1994-05-31
US5583757A (en) 1996-12-10
HK1005213A1 (en) 1998-12-24
KR100302218B1 (ko) 2001-11-22
WO1994003846A1 (en) 1994-02-17
DE69315343D1 (de) 1998-01-02
AU4637593A (en) 1994-03-03
DE69315343T2 (de) 1998-06-10
EP0654154B1 (en) 1997-11-19
KR950703170A (ko) 1995-08-23
EP0654154A1 (en) 1995-05-24
CA2139563A1 (en) 1994-02-17

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