HK1051405A1 - Wiring fault detection, diagnosis and reporting for process control systems. - Google Patents

Wiring fault detection, diagnosis and reporting for process control systems.

Info

Publication number
HK1051405A1
HK1051405A1 HK03102771A HK03102771A HK1051405A1 HK 1051405 A1 HK1051405 A1 HK 1051405A1 HK 03102771 A HK03102771 A HK 03102771A HK 03102771 A HK03102771 A HK 03102771A HK 1051405 A1 HK1051405 A1 HK 1051405A1
Authority
HK
Hong Kong
Prior art keywords
process control
cabling
reporting
diagnosis
fault detection
Prior art date
Application number
HK03102771A
Other languages
English (en)
Inventor
Daniel Dean Christensen
Steven D Bonwell
Michael L Marshall
Original Assignee
Fisher Rosemount Systems Inc
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 Fisher Rosemount Systems Inc filed Critical Fisher Rosemount Systems Inc
Publication of HK1051405A1 publication Critical patent/HK1051405A1/xx

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/079Root cause analysis, i.e. error or fault diagnosis
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/07Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/0703Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation
    • G06F11/0706Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment
    • G06F11/0736Error or fault processing not based on redundancy, i.e. by taking additional measures to deal with the error or fault not making use of redundancy in operation, in hardware, or in data representation the processing taking place on a specific hardware platform or in a specific software environment in functional embedded systems, i.e. in a data processing system designed as a combination of hardware and software dedicated to performing a certain function
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/30Monitoring
    • G06F11/3003Monitoring arrangements specially adapted to the computing system or computing system component being monitored
    • G06F11/3013Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system is an embedded system, i.e. a combination of hardware and software dedicated to perform a certain function in mobile devices, printers, automotive or aircraft systems
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/30Monitoring
    • G06F11/3003Monitoring arrangements specially adapted to the computing system or computing system component being monitored
    • G06F11/3041Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is an input/output interface
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00Error detection; Error correction; Monitoring
    • G06F11/30Monitoring
    • G06F11/3055Monitoring arrangements for monitoring the status of the computing system or of the computing system component, e.g. monitoring if the computing system is on, off, available, not available
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42Loop networks
    • H04L12/423Loop networks with centralised control, e.g. polling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/40Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection
HK03102771A 2001-05-07 2003-04-16 Wiring fault detection, diagnosis and reporting for process control systems. HK1051405A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/850,300 US6912671B2 (en) 2001-05-07 2001-05-07 Wiring fault detection, diagnosis and reporting for process control systems

Publications (1)

Publication Number Publication Date
HK1051405A1 true HK1051405A1 (en) 2003-08-01

Family

ID=25307765

Family Applications (1)

Application Number Title Priority Date Filing Date
HK03102771A HK1051405A1 (en) 2001-05-07 2003-04-16 Wiring fault detection, diagnosis and reporting for process control systems.

Country Status (5)

Country Link
US (1) US6912671B2 (xx)
JP (2) JP4141747B2 (xx)
DE (1) DE10220390A1 (xx)
GB (1) GB2377499B (xx)
HK (1) HK1051405A1 (xx)

Families Citing this family (103)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7630861B2 (en) 1996-03-28 2009-12-08 Rosemount Inc. Dedicated process diagnostic device
US8290721B2 (en) 1996-03-28 2012-10-16 Rosemount Inc. Flow measurement diagnostics
US7623932B2 (en) * 1996-03-28 2009-11-24 Fisher-Rosemount Systems, Inc. Rule set for root cause diagnostics
ATE363091T1 (de) * 2000-07-22 2007-06-15 Abb Research Ltd System zur unterstützung einer fehlerursachenanalyse
EP1303819A1 (de) * 2000-07-22 2003-04-23 ABB Research Ltd. System und verfahren zur generierung eines xml-basierten fehlermodells
US8161144B2 (en) * 2001-08-15 2012-04-17 National Instruments Corporation Defining a switch device route based on required signal characteristics and resource dependencies
US7372804B2 (en) * 2002-01-11 2008-05-13 Nec Corporation Multiplex communication system and method
US20050232256A1 (en) * 2002-03-29 2005-10-20 Jason White Applying object oriented concepts to switch system configurations
DE10225556A1 (de) * 2002-06-10 2003-12-18 Philips Intellectual Property Verfahren und Schaltungsanordnung zum Erfassen des Masseversatzes von Teilen eines vernetzten Systems
FR2841340B1 (fr) * 2002-06-19 2005-05-20 Eurocopter France Dispositif d'aide a la localisation de defaillance d'un systeme complexe
US6777951B2 (en) * 2002-10-11 2004-08-17 Honeywell International, Inc. Method and apparatus for detecting and isolating shorts and other troubles on a polling loop
DE10313389A1 (de) 2003-03-25 2004-10-07 Endress + Hauser Process Solutions Ag Verfahren zur Übertragung von Softwarecode von einer Steuereinheit zu einem Feldgerät der Prozessautomatisierungstechnik
US7035693B2 (en) * 2003-01-23 2006-04-25 Smar Research Corporation Fieldbus relay arrangement and method for implementing such arrangement
DE10318704B4 (de) * 2003-04-24 2007-10-18 Endress + Hauser Gmbh + Co. Kg Vorrichtung zur Ausgabe von Messsignalen
US7139668B2 (en) * 2003-05-12 2006-11-21 Simmonds Precision Products, Inc. Wire event detection
DE10322279A1 (de) * 2003-05-16 2004-12-02 Endress + Hauser Gmbh + Co. Kg Kapazitive Füllstandmessung
US7684167B2 (en) * 2003-09-30 2010-03-23 Fisher-Rosemount Systems, Inc. Communication bus suitable for use in a hazardous area of a process plant
GB0323178D0 (en) * 2003-10-03 2003-11-05 Rogoll Gunther Physical layer diagnostics
US7234084B2 (en) 2004-02-18 2007-06-19 Emerson Process Management System and method for associating a DLPDU received by an interface chip with a data measurement made by an external circuit
US7058089B2 (en) * 2004-02-18 2006-06-06 Rosemount, Inc. System and method for maintaining a common sense of time on a network segment
US7251742B2 (en) * 2004-06-12 2007-07-31 Simplexgrinnell Lp Method and apparatus for determining mis-wired addressable loops
KR100768913B1 (ko) * 2004-08-04 2007-10-19 삼성전자주식회사 통신케이블로 연결된 외부장치의 이상여부를 감지하는호스트장치 및 그 방법
JP2008511938A (ja) * 2004-08-31 2008-04-17 ワットロー・エレクトリック・マニュファクチャリング・カンパニー 動作システムの分散された診断システム
CN100370747C (zh) * 2004-12-02 2008-02-20 华为技术有限公司 一种通信设备及其内部链路故障的定位方法
US7551412B2 (en) * 2005-05-09 2009-06-23 Electronic Systems Protection Inc. Wiring fault correction circuit
US8066508B2 (en) 2005-05-12 2011-11-29 Honeywell International Inc. Adaptive spark ignition and flame sensing signal generation system
US8310801B2 (en) * 2005-05-12 2012-11-13 Honeywell International, Inc. Flame sensing voltage dependent on application
US7768410B2 (en) * 2005-05-12 2010-08-03 Honeywell International Inc. Leakage detection and compensation system
US8085521B2 (en) * 2007-07-03 2011-12-27 Honeywell International Inc. Flame rod drive signal generator and system
US8300381B2 (en) * 2007-07-03 2012-10-30 Honeywell International Inc. Low cost high speed spark voltage and flame drive signal generator
US8112565B2 (en) 2005-06-08 2012-02-07 Fisher-Rosemount Systems, Inc. Multi-protocol field device interface with automatic bus detection
US7633733B1 (en) 2005-08-18 2009-12-15 Moore Industries International, Inc. Short circuit detector for fieldbus cable system network
US20070068225A1 (en) 2005-09-29 2007-03-29 Brown Gregory C Leak detector for process valve
US8780726B2 (en) * 2006-01-10 2014-07-15 Honeywell International Inc. Remote communications diagnostics using analog data analysis
US7505819B2 (en) * 2006-02-08 2009-03-17 Moore Industries International, Inc. Redundant fieldbus system
US8875557B2 (en) 2006-02-15 2014-11-04 Honeywell International Inc. Circuit diagnostics from flame sensing AC component
WO2007096586A1 (en) * 2006-02-20 2007-08-30 Pepperl & Fuchs (De) Fieldbus physical layer diagnostics data conversion device
US7975184B2 (en) * 2006-04-03 2011-07-05 Donald Goff Diagnostic access system
DE102006030774A1 (de) * 2006-06-30 2008-02-21 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Verfahren zur Bestimmung des Bürdenwiderstandes für einen Messumformer
US7953501B2 (en) 2006-09-25 2011-05-31 Fisher-Rosemount Systems, Inc. Industrial process control loop monitor
US8788070B2 (en) 2006-09-26 2014-07-22 Rosemount Inc. Automatic field device service adviser
EP2074385B2 (en) 2006-09-29 2022-07-06 Rosemount Inc. Magnetic flowmeter with verification
US7558703B2 (en) * 2006-11-01 2009-07-07 Abb Research Ltd. Electrical substation monitoring and diagnostics
JP4737551B2 (ja) * 2006-12-11 2011-08-03 横河電機株式会社 フィールド機器システムと診断方法
US8898036B2 (en) 2007-08-06 2014-11-25 Rosemount Inc. Process variable transmitter with acceleration sensor
ATE546765T1 (de) * 2007-11-16 2012-03-15 Pepperl & Fuchs Elektrische kommunikationsschaltung mit abzweigungsdiagnose
GB0723481D0 (en) * 2007-11-30 2008-01-09 Graber Steffen Physical layor diagnostics mapping to physical layer design
US8225143B2 (en) * 2008-01-28 2012-07-17 International Business Machines Corporation Method and apparatus to inject noise in a network system
US8374094B2 (en) * 2008-12-11 2013-02-12 Fisher-Rosemount Systems, Inc Methods and systems to verify a communication path between a field device and a process controller in a process control system
US7999667B2 (en) * 2009-01-07 2011-08-16 The Boeing Company Vehicle health management system
EP2224301A1 (de) * 2009-02-27 2010-09-01 Siemens Aktiengesellschaft Automatisierungsanordnung mit einer industriellen Automatisierungskomponente und Verfahren zur Verwaltung einer industriellen Automatisierungskomponente
JP4807436B2 (ja) * 2009-05-29 2011-11-02 ブラザー工業株式会社 通信装置
DE102009029933A1 (de) * 2009-06-19 2010-12-23 Honeywell Technologies S.A.R.L. Gebäudemanagementsystem
US20120035749A1 (en) * 2010-08-04 2012-02-09 Fisher-Rosemount Systems, Inc. Seamless integration of process control devices in a process control environment
CN101977128B (zh) * 2010-09-14 2015-04-01 中兴通讯股份有限公司 用于通讯设备的接口检测方法和装置
DE102011003308B4 (de) * 2011-01-28 2014-06-05 Micropelt Gmbh Überwachungsanordnung und Verfahren zur Überwachung einer elektrischen Leitung
US9207670B2 (en) 2011-03-21 2015-12-08 Rosemount Inc. Degrading sensor detection implemented within a transmitter
US8983632B2 (en) * 2011-03-29 2015-03-17 Honeywell International Inc. Function block execution framework
EP2691821A1 (en) * 2011-03-31 2014-02-05 ABB Technology Ltd. A method of engineering and diagnosing a field device and a system thereof
US8769072B2 (en) 2011-05-31 2014-07-01 General Electric Company Systems and methods for identifying foundation fieldbus linking devices
US8762528B2 (en) 2011-05-31 2014-06-24 General Electric Company Systems and methods for write protecting foundation fieldbus linking devices
US8713166B2 (en) 2011-05-31 2014-04-29 General Electric Company Systems and methods for facilitating communication with foundation fieldbus linking devices
US9130853B2 (en) 2011-05-31 2015-09-08 General Electric Company Systems and methods for identifying foundation fieldbus linking devices
US8868732B2 (en) * 2011-05-31 2014-10-21 General Electric Company Systems and methods for facilitating communication with foundation fieldbus linking devices
EP2544514B1 (de) * 2011-07-05 2019-03-06 Pierburg Pump Technology GmbH Verfahren zur Überprüfung einer korrekten Klebung eines Substrates auf einem elektrisch und thermisch leitfähigen Körper
DE102011106687A1 (de) * 2011-07-06 2013-01-10 Festo Ag & Co. Kg Signalverarbeitungssystem und Verfahren zur Verarbeitung von Signalen in einem Busknoten
US9020768B2 (en) * 2011-08-16 2015-04-28 Rosemount Inc. Two-wire process control loop current diagnostics
US20130173024A1 (en) * 2012-01-03 2013-07-04 William Robert Pettigrew Method and system for control system redundancy
US9052240B2 (en) 2012-06-29 2015-06-09 Rosemount Inc. Industrial process temperature transmitter with sensor stress diagnostics
JPWO2014033850A1 (ja) * 2012-08-29 2016-08-08 三菱電機株式会社 制御機器
JP5511920B2 (ja) * 2012-09-21 2014-06-04 三菱電機株式会社 安全監視入力装置
US9602122B2 (en) 2012-09-28 2017-03-21 Rosemount Inc. Process variable measurement noise diagnostic
US9667956B2 (en) * 2012-10-15 2017-05-30 Trilithic, Inc. Icon-based home certification, in-home leakage testing, and antenna matching pad
US10208954B2 (en) 2013-01-11 2019-02-19 Ademco Inc. Method and system for controlling an ignition sequence for an intermittent flame-powered pilot combustion system
US9494320B2 (en) 2013-01-11 2016-11-15 Honeywell International Inc. Method and system for starting an intermittent flame-powered pilot combustion system
DE102013213608A1 (de) * 2013-05-03 2014-11-06 Continental Teves Ag & Co. Ohg Verfahren zur Erkennung von Isolationsfehlern einer Mehrdraht-Schnittstelle
PT106994A (pt) 2013-06-09 2014-12-09 Active Space Technologies Actividades Aeroespaciais Lda Método e sistema de monitorização de envelhecimento de cablagens eléctricas
US9787099B2 (en) 2013-09-12 2017-10-10 Kohler, Co. Automatic diagnosis or repair for a generator controller
US10288286B2 (en) 2014-09-30 2019-05-14 Honeywell International Inc. Modular flame amplifier system with remote sensing
US10402358B2 (en) 2014-09-30 2019-09-03 Honeywell International Inc. Module auto addressing in platform bus
US10678204B2 (en) 2014-09-30 2020-06-09 Honeywell International Inc. Universal analog cell for connecting the inputs and outputs of devices
US10042375B2 (en) 2014-09-30 2018-08-07 Honeywell International Inc. Universal opto-coupled voltage system
US9835669B2 (en) * 2014-12-19 2017-12-05 The Boeing Company Automatic data bus wire integrity verification device
GB2535839B (en) * 2015-01-08 2021-06-09 Fisher Rosemount Systems Inc Apparatus and methods to communicatively couple field devices to controllers in a process control system
CN104793097B (zh) * 2015-04-24 2017-07-14 中国科学院长春光学精密机械与物理研究所 无人机线缆网自动测试系统及测试方法
CN105137946B (zh) * 2015-09-11 2018-05-15 重庆川仪自动化股份有限公司 一种profibus pa 协议仪表的通信检测方法及系统
CN105446313B (zh) * 2015-09-16 2018-04-27 华锐风电科技(集团)股份有限公司 一种plc及io模块的检测方法
KR102550413B1 (ko) * 2016-01-13 2023-07-05 삼성전자주식회사 Led 구동 장치 및 조명 장치
US10382312B2 (en) * 2016-03-02 2019-08-13 Fisher-Rosemount Systems, Inc. Detecting and locating process control communication line faults from a handheld maintenance tool
CN106646101B (zh) * 2016-09-19 2023-08-04 国网浙江省电力公司温州供电公司 一种群众护线员管理装置
CN106919167B (zh) * 2017-04-21 2023-06-02 山东中实易通集团有限公司 一种适用于现场总线控制的故障预警系统及方法
US10443325B2 (en) * 2017-09-01 2019-10-15 Schlumberger Technology Corporation Method and system for pipe conveyed logging
EP3457240A1 (en) 2017-09-19 2019-03-20 Siemens Aktiengesellschaft Method and system for automatically generating interactive wiring diagram in an industrial automation environment
US10707917B2 (en) 2017-11-08 2020-07-07 Viavi Solutions, Inc. Instrument, system, and method for locating a leakage source
US10473329B2 (en) 2017-12-22 2019-11-12 Honeywell International Inc. Flame sense circuit with variable bias
US11236930B2 (en) 2018-05-01 2022-02-01 Ademco Inc. Method and system for controlling an intermittent pilot water heater system
US10935237B2 (en) 2018-12-28 2021-03-02 Honeywell International Inc. Leakage detection in a flame sense circuit
DE102019200333A1 (de) * 2019-01-14 2020-07-16 Phoenix Contact Gmbh & Co. Kg Mess-System zur Erfassung von Störungen auf Leitungen eines Gerätes oder einer Anlage
JP7339037B2 (ja) * 2019-07-10 2023-09-05 ファナック株式会社 制御装置、診断方法及び診断プログラム
NL2023521B1 (en) * 2019-07-17 2021-02-23 Procentec B V A method, a diagnosing system and a computer program product for diagnosing a fieldbus type network
US11739982B2 (en) 2019-08-14 2023-08-29 Ademco Inc. Control system for an intermittent pilot water heater
US11656000B2 (en) 2019-08-14 2023-05-23 Ademco Inc. Burner control system
EP4055489A2 (en) * 2019-11-08 2022-09-14 Ree Technology GmbH Autonomous vehicle interface using bus impedance to identify control units, and associated systems and methods

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3701848A (en) * 1944-07-14 1972-10-31 Bell Telephone Labor Inc Testing circuit for a secret signaling system
US4792950A (en) * 1987-06-17 1988-12-20 Ford Motor Company Multiplex wiring system
FR2653893B1 (fr) * 1989-10-26 1992-05-22 Fieau Jean Claude Dispositif de test d'un bus a deux paires de conducteurs.
US5066919A (en) * 1990-04-03 1991-11-19 Ford Motor Company Fault detection and isolation in automotive wiring harness by network analysis method
DE69305383T2 (de) 1992-02-19 1997-04-30 Namco Controls Corp Sensorverbindungssystem
US5521903A (en) * 1993-12-27 1996-05-28 At&T Corp. Port system for interfacing digital PBX to digital transmission facility
JPH07253801A (ja) * 1994-03-16 1995-10-03 Yokogawa Electric Corp 分散形制御装置
US5528137A (en) * 1995-01-24 1996-06-18 International Business Machines Corporation Network sensitive pulse generator
US6230109B1 (en) * 1995-05-16 2001-05-08 The United States Of America As Represented By The Secretary Of The Navy Multiconductor continuity and intermittent fault analyzer with distributed processing and dynamic stimulation
JP3247043B2 (ja) * 1996-01-12 2002-01-15 株式会社日立製作所 内部信号で障害検出を行う情報処理システムおよび論理lsi
DE19611944C2 (de) 1996-03-26 2003-03-27 Daimler Chrysler Ag Integrierter Schaltkreis zur Kopplung eines mikrokontrollierten Steuergerätes an einen Zweidraht-Bus
CN101135906A (zh) * 1996-10-04 2008-03-05 费希尔控制产品国际有限公司 运用于过程控制网络中的维护接口装置
US6046594A (en) * 1997-02-11 2000-04-04 Advanced Energy Voorhees, Inc. Method and apparatus for monitoring parameters of an RF powered load in the presence of harmonics
DE19726539C2 (de) 1997-06-23 2001-09-27 Daimler Chrysler Ag Verfahren und Schaltungsanordnung zur Lokalisierung eines Kurzschluß oder Kabelbruchs in einem Bus-System
US6037779A (en) * 1997-09-17 2000-03-14 Chrysler Corporation Bus isolation/diagnostic tool
DE19813964A1 (de) 1998-03-28 1999-08-19 Telefunken Microelectron Bussystem mit einer Zentraleinheit eine Mehrzahl von Steuermodulen, insbesondere für Insassenschutzsysteme in Kraftfahrzeugen
JP4042234B2 (ja) * 1998-12-07 2008-02-06 株式会社デンソー Faネットワーク及びロボットコントローラ
DE10104908A1 (de) 2001-02-03 2002-08-08 Metrawatt Gmbh Gossen Elektronische Vorrichtung zur Überwachung elektrisch erfaßbarer Zustände und/oder Größen von Bussystemen, Bus-Power-Monitor

Also Published As

Publication number Publication date
GB2377499A (en) 2003-01-15
US6912671B2 (en) 2005-06-28
DE10220390A1 (de) 2002-12-19
GB0210353D0 (en) 2002-06-12
GB2377499B (en) 2005-05-25
JP5037409B2 (ja) 2012-09-26
JP2003044133A (ja) 2003-02-14
JP2008181561A (ja) 2008-08-07
US20020194547A1 (en) 2002-12-19
JP4141747B2 (ja) 2008-08-27

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Effective date: 20130507