EP1664949A2 - Procede de transmission de donnees securisee entre un capteur a securite intrinseque et une unite d'evaluation a securite non intrinseque - Google Patents

Procede de transmission de donnees securisee entre un capteur a securite intrinseque et une unite d'evaluation a securite non intrinseque

Info

Publication number
EP1664949A2
EP1664949A2 EP04786968A EP04786968A EP1664949A2 EP 1664949 A2 EP1664949 A2 EP 1664949A2 EP 04786968 A EP04786968 A EP 04786968A EP 04786968 A EP04786968 A EP 04786968A EP 1664949 A2 EP1664949 A2 EP 1664949A2
Authority
EP
European Patent Office
Prior art keywords
sensor
computer unit
intrinsically safe
measurement data
unit
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.)
Withdrawn
Application number
EP04786968A
Other languages
German (de)
English (en)
Inventor
Detlev Wittmer
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.)
Endress and Hauser Conducta GmbH and Co KG
Original Assignee
Endress and Hauser Conducta Gesellschaft fuer Mess und Regeltechnik mbH and Co KG
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 Endress and Hauser Conducta Gesellschaft fuer Mess und Regeltechnik mbH and Co KG filed Critical Endress and Hauser Conducta Gesellschaft fuer Mess und Regeltechnik mbH and Co KG
Publication of EP1664949A2 publication Critical patent/EP1664949A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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—Program-control systems
    • G05B19/02—Program-control systems electric
    • G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Program control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0423—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
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/21—Pc I-O input output
    • G05B2219/21103—Connect pc to machine, controller, module via PCMCIA
    • 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
    • G05B2219/20—Pc systems
    • G05B2219/24—Pc safety
    • G05B2219/24028—Explosion free control, intrinsically safe

Definitions

  • the invention relates to a method for secure data transmission between an intrinsically safe sensor and a non-intrinsically safe evaluation unit.
  • Sensors in process automation technology record different process variables and transmit the corresponding digital measured values to an evaluation unit (e.g. control room) in which the measured values are stored and, if necessary, processed further.
  • an evaluation unit e.g. control room
  • Such sensors are often used, in particular potentiometric sensors, in explosion-protected areas (Ex areas). Potentiometric sensors are generally suitable for use in hazardous areas.
  • PCs personal computers
  • PCs personal computers
  • the object of the present invention is therefore to provide a method for secure data transmission between an intrinsically safe sensor and a non-intrinsically safe evaluation unit, which can be carried out simply and inexpensively.
  • FIG. 2 shows a computer unit, which exchanges data with a sensor via a plug-in module, in a schematic illustration
  • Fig. 3 computer unit, which exchanges data with a sensor via a portable storage medium, in a schematic representation.
  • the sensor shown in FIG. 1 is a liquid or gas sensor, in particular a potentiometric sensor, which consists of a sensor module SM and a sensor module head.
  • Sensor module SM and sensor module head enable data and energy exchange via a galvanically decoupled transmission path.
  • the sensor S is connected to a calibration unit KA via a line L1. With the help of the calibration unit KA, sensors can be calibrated.
  • the measuring station designation for the sensor S can also be entered and transmitted via line L1 to a memory provided in the sensor module SM.
  • the calibration unit is supplied with power via a plug-in power supply SN.
  • the calibration unit K and the sensor S are both suitable for the Ex area and are therefore designed to be intrinsically safe.
  • the computing unit PC can be a personal computer, notebook or laptop.
  • the calibration unit K is connected to a computer unit (personal computer) PC via a data line D2 in which an interface CDI is provided.
  • the PC-side transmission takes place according to the USB (Universal Serial Bus) standard.
  • the sensor-side data transmission on data line D2 and on line L1 is carried out according to a proprietary protocol via an RS485 interface.
  • FIG. 2 shows a connection between the sensor S and the computer unit PC via a PCMCIA plug-in card.
  • PCMCIA plug-in card slots are often provided in today's personal computers.
  • the sensor S is connected here via a line L1 to an Ex barrier B and the PCMCIA plug-in module.
  • line L1 is connected to a multiplex unit MUX, to which various other sensors S1, S2, S3, S4, S5 are connected.
  • data is transmitted via line L1 according to a proprietary protocol.
  • the computer unit PC allows a connection to other communication networks (Internet, intranet, company networks).
  • the data transfer between sensor S or sensors S1-S5 takes place via the PCMCIA plug-in card designed as a plug-in module for a computer unit R.
  • the Ex barrier can be easily integrated into the plug-in module.
  • the galvanic isolation in the Ex-barrier B takes place in a known manner optically (by means of an optocoupler) or capacitively or inductively.
  • sensors can be connected directly to a computer unit in a simple manner.
  • the calibration unit K has an additional data interface (fieldbus, network, 4-20 mA).
  • the calibration unit K has a connection for a portable storage medium SP.
  • the computer unit PC also has a connection option for the portable storage medium SP via the interface CDI, which has already been described in FIG. 1.
  • the data transmission between the computer unit R and the sensor S takes place as follows:

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

L'invention concerne un procédé de transmission de données sécurisée entre un capteur à sécurité intrinsèque et une unité informatique à sécurité non intrinsèque. Selon l'invention, la transmission de données se fait par l'intermédiaire d'une interface se présentant sous la forme d'une barrière Ex, ou par l'intermédiaire d'un support de stockage portatif.
EP04786968A 2003-09-23 2004-09-20 Procede de transmission de donnees securisee entre un capteur a securite intrinseque et une unite d'evaluation a securite non intrinseque Withdrawn EP1664949A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10344263A DE10344263A1 (de) 2003-09-23 2003-09-23 Verfahren zur sicheren Datenübertragung zwischen einem eigensicheren Sensor und einer nicht eigensicheren Auswerteeinheit
PCT/EP2004/010528 WO2005031481A2 (fr) 2003-09-23 2004-09-20 Procede de transmission de donnees securisee entre un capteur a securite intrinseque et une unite d'evaluation a securite non intrinseque

Publications (1)

Publication Number Publication Date
EP1664949A2 true EP1664949A2 (fr) 2006-06-07

Family

ID=34384246

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04786968A Withdrawn EP1664949A2 (fr) 2003-09-23 2004-09-20 Procede de transmission de donnees securisee entre un capteur a securite intrinseque et une unite d'evaluation a securite non intrinseque

Country Status (4)

Country Link
US (1) US20090013107A1 (fr)
EP (1) EP1664949A2 (fr)
DE (1) DE10344263A1 (fr)
WO (1) WO2005031481A2 (fr)

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DE10344262A1 (de) * 2003-09-23 2005-04-14 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Steckmodul für einen Flüssigkeits- oder Gassensor
DE10356985A1 (de) * 2003-12-05 2005-07-07 Cooper Crouse-Hinds Gmbh Datenübertragungseinrichtung
DE102006015659A1 (de) * 2006-01-27 2007-08-09 Vega Grieshaber Kg Potentialtrennung für ein Füllstandradar
DE102006060447A1 (de) * 2006-12-19 2008-06-26 Endress + Hauser Wetzer Gmbh + Co. Kg Zweileiterfeldgerät für die Prozessautomatisierungstechnik zum Anschluss mindestens eines Sensorelements
GB0709102D0 (en) 2007-05-11 2007-06-20 Kitchener Renato Power over broadband backbone for control and instrumentation
DE102009055247A1 (de) * 2009-12-23 2011-06-30 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG, 70839 Anordnung mit einer übergeordneten Steuereinheit und zumindest einem mit der Steuereinheit verbindbaren intelligenten Feldgerät
EP2624082B1 (fr) 2012-01-31 2014-03-19 Sick Ag Mémoire de données mobile
US10194306B2 (en) * 2017-01-13 2019-01-29 Qualcomm Incorporated Techniques and apparatuses for suppressing network status information notifications
DE102023112683A1 (de) * 2023-05-12 2024-11-14 Turck Holding Gmbh Station zum Einsatz in einem Feldnetz zwischen einem oder mehreren Feldgeräten und einer Zentraleinheit, sowie dazugehöriges Feldnetz

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US3874850A (en) * 1972-07-24 1975-04-01 Radiometer As Blood analyzing method and apparatus
DE3435100A1 (de) * 1984-09-25 1986-04-17 Samson Ag, 6000 Frankfurt Steuer- und regelsystem mit zentraler leiteinheit
CH670158A5 (fr) * 1985-05-30 1989-05-12 Proton Ag
DE3907033A1 (de) * 1989-03-04 1990-09-06 Flow Comp Ingenieur Gmbh Vorrichtung zur messung und uebertragung von druck- und temperaturwerten im ex- gefaehrdeten/nicht ex- gefaehrdeten bereich
DE4004408A1 (de) * 1990-02-13 1991-08-14 Ultrakust Electronic Gmbh Infrarot-temperatursensor
AU667055B2 (en) * 1991-09-26 1996-03-07 Hans Bar Medico-technical process and means for measuring blood irrigation of organs
JP2599994Y2 (ja) * 1992-07-30 1999-09-27 株式会社堀場製作所 実験室用イオン濃度計の自動校正装置
JPH06333644A (ja) * 1993-05-20 1994-12-02 Otax Kk 測定装置用コネクタ装置
US5405512A (en) * 1994-06-23 1995-04-11 Parker; Fred Gas sensor and method
DE19510574C1 (de) * 1995-03-23 1996-06-05 Testo Gmbh & Co Verfahren zur Zustandsbestimmung eines elektrochemischen Gassensors
US6154683A (en) * 1997-06-06 2000-11-28 Rockwell Technologies, Llc Low voltage industrial control system providing intrinsically safe operation
US6611208B1 (en) * 1998-07-24 2003-08-26 Rel-Tek Integrated field monitoring and communications system
US6369715B2 (en) * 1999-04-12 2002-04-09 Innovative Sensor Solutions, Ltd Intrinsically safe sensor and data transmission system
US6397322B1 (en) * 2000-03-31 2002-05-28 Schneider Automation, Inc. Integrated intrinsically safe input-output module
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See references of WO2005031481A3 *

Also Published As

Publication number Publication date
DE10344263A1 (de) 2005-05-12
WO2005031481A2 (fr) 2005-04-07
WO2005031481A3 (fr) 2005-10-06
US20090013107A1 (en) 2009-01-08

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