EP2188600A2 - Procédé de surveillance d'une installation de processus au moyen d'un bus de champ d'automatisation des processus - Google Patents

Procédé de surveillance d'une installation de processus au moyen d'un bus de champ d'automatisation des processus

Info

Publication number
EP2188600A2
EP2188600A2 EP08802996A EP08802996A EP2188600A2 EP 2188600 A2 EP2188600 A2 EP 2188600A2 EP 08802996 A EP08802996 A EP 08802996A EP 08802996 A EP08802996 A EP 08802996A EP 2188600 A2 EP2188600 A2 EP 2188600A2
Authority
EP
European Patent Office
Prior art keywords
monitoring
application
monitoring application
telegrams
applications
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Withdrawn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
EP08802996A
Other languages
German (de)
English (en)
Inventor
Vincent De Groot
Jörg HÄHNICHE
Matthias RÖMER
Raimund Sommer
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 Process Solutions AG
Original Assignee
Endress and Hauser Process Solutions AG
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 Process Solutions AG filed Critical Endress and Hauser Process Solutions AG
Publication of EP2188600A2 publication Critical patent/EP2188600A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/80—Arrangements for signal processing
    • G01F23/802—Particular electronic circuits for digital processing equipment
    • G01F23/804—Particular electronic circuits for digital processing equipment containing circuits handling parameters other than liquid level
    • 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
    • G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • G05B19/0428—Safety, monitoring
    • 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
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/4184—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by fault tolerance, reliability of production system
    • 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
    • G05B2219/30—Nc systems
    • G05B2219/31—From computer integrated manufacturing till monitoring
    • G05B2219/31121—Fielddevice, field controller, interface connected to fieldbus
    • 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
    • G05B2219/30—Nc systems
    • G05B2219/31—From computer integrated manufacturing till monitoring
    • G05B2219/31348—Gateway
    • 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
    • G05B2219/30—Nc systems
    • G05B2219/31—From computer integrated manufacturing till monitoring
    • G05B2219/31434—Zone supervisor, collects error signals from, and diagnoses different zone
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/16—Combinations of two or more digital computers each having at least an arithmetic unit, a program unit and a register, e.g. for a simultaneous processing of several programs
    • G06F15/177—Initialisation or configuration control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Definitions

  • the invention relates to a method for monitoring a process plant with a fieldbus of process automation technology according to the preamble of claim 1.
  • field devices are often used which serve to detect and / or influence process variables.
  • Examples of such field devices are level gauges, mass flowmeters, pressure and temperature measuring devices, etc., which detect the process variables level, flow or temperature with corresponding sensors.
  • actuators e.g. as valves affect the flow of a liquid in a pipe section or as pumps the level in a container.
  • field devices are connected in modern automation systems via fieldbus systems (HART, Profibus, Foundation Fieldbus) with higher-level units.
  • HART Profibus
  • Foundation Fieldbus Foundation Fieldbus
  • higher-level units serve, among other things, for process control or process visualization.
  • Fieldbus systems also for monitoring process plants.
  • System monitoring can be carried out, for example, by means of a corresponding process control unit (for example Simatic S7, Siemens).
  • Process control units receive data relevant to the installation via telegrams which are transmitted in regular (cyclic / scheduled) data traffic via the fieldbus.
  • process models are parts of Monitoring applications integrated into process control applications.
  • Monitoring applications known.
  • An example of this is the product FieldCare from Endress + Hauser.
  • the data required for the monitoring application is exchanged not via the regular data traffic but via the non-regular (acyclic / unscheduled) data traffic. These data must be requested by the field devices in addition to the cyclic data.
  • the monitoring applications also evaluate special device diagnostic information from the individual field devices.
  • process models are frequently used which compare actual values with nominal values.
  • the object of the invention is therefore to address a process for monitoring a process plant with a fieldbus process automation technology, which does not have the disadvantages mentioned above, in particular easily adaptable and that to none or none higher bus load leads.
  • the essential idea of the invention is to listen to telegrams that are transmitted via the fieldbus for process control by a monitoring application in which a check of the telegrams on data that are relevant for the monitoring application takes place.
  • the relevant data are supplied as actual values to a process model application and processed there, in particular compared with desired values.
  • the process model application is usually part of the monitoring application.
  • error signals can be generated when significant strokes occur.
  • the main advantage of the invention is that the existing data traffic is monitored via the fieldbus in order to obtain the necessary data for monitoring the process plant. There are therefore no additional queries on the fieldbus necessary, which lead to a higher bus load.
  • monitoring application is a completely separate application, changes / adjustments to it can easily be made. Such changes will not affect the performance of other applications, especially process control applications.
  • Monitoring application requested additional data from the field devices, if necessary for reliable monitoring.
  • the monitoring application also consists of two separate Monitoring portion applications.
  • monitoring sub-applications can be used, for example, to monitor corresponding sub-processes within a process plant.
  • interdependent sub-processes can also be monitored simply, safely and reliably.
  • FIG. 1 fieldbus system of process automation technology in a schematic representation
  • FIG. 2 tank system in a schematic representation
  • FIG. 3 further fieldbus system of process automation technology in a schematic representation
  • Fig. 1 is a typical field bus system FS of
  • Profile Process automation technology
  • a field bus FB To a field bus FB several field devices F1, F2, F3 and F4 are connected. Via a gateway G (segment coupler, Linking Device) of the field bus FB is connected to a fast data bus D1, to which a computer unit R1 and a control unit PLC are connected.
  • the control unit PLC is used for process control with a corresponding control application.
  • the field devices exchange messages with the control unit SPS telegrams in regular data traffic.
  • regular data traffic for process control is also called cyclic data traffic.
  • the computer unit R1 can z. B. are used for process visualization.
  • a monitoring unit U is connected to the fieldbus FB, on which a monitoring application UA runs.
  • FIG. 2 shows a tank system
  • the level in a tank T is measured by means of the field device F1, which is a level gauge.
  • the tank is filled via a supply line Z1 and emptied via a discharge line A1.
  • Flowmeters F2 and F3 are arranged in the two lines Z1 and A1, respectively.
  • the process model can be used to monitor the tank system in one
  • FIG. 3 another field bus system FS ' is shown in more detail. It shows field devices F1-F3, which are arranged on a heat exchanger component, not shown. Three further field devices F4-F6 are arranged on a likewise not shown filtration component.
  • the field devices are each connected via field buses FB1 and FB2 to a monitoring unit U, which also functions as a gateway. Monitoring units U1 and U2 are each still connected to the two field buses FB1 and FB2.
  • the field devices F1-F4 exchange for process control in regular data traffic telegrams with process data with the control unit PLC. These telegrams are listened to by the monitoring application UA according to method step a). Subsequently, in method step b), the telegrams are checked as to whether they contain data that are relevant for the monitoring applications UA. If so, this data is processed as actual values in a process model application; Process step c).
  • the process model application is part of the monitoring application.
  • An error signal is generated with the aid of the process model application. if significant breaks between the target values and the actual values are detected; Process step d).
  • the monitoring application UA can request additional data from the field devices. This can be z. B. be the case, if the required data in regular data traffic does not exist at all or if the transmission rate of this data traffic is not sufficient. As an example, here is the oscillation frequency of a Coriolis mass flow meter, which must be queried more frequently. However, this is relatively rarely the case, so that the bus traffic is only slightly increased by these additional queries.
  • the monitoring application UA can, according to FIG. 3, also be made up of several monitoring sub-applications, e.g. UA1 for the
  • Heat exchanger component, UA2 for the filtration component and UA ' exist for a higher-level monitoring part application that can run on different field devices or other participants of the fieldbus system FS'.
  • Each of the two sub-processes "heat exchanger” or “filtration” is monitored by the respective monitoring sub-application UA1, or UA2, which run in the monitoring units U1 and U2.
  • the hierarchically superior monitoring sub-application UA ' is provided, which consists of the data of the subordinate monitoring sub-applications UA1 and UA2 z.
  • B. determines the efficiency of the overall process and generates a corresponding error signal for deviations from default values for the entire process.
  • Monitoring application a simple system monitoring possible without the bus traffic is ever or substantially increased.
  • the monitoring applications be adapted or changed independently of existing process control applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Quality & Reliability (AREA)
  • Fluid Mechanics (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Debugging And Monitoring (AREA)

Abstract

L'invention concerne un procédé de surveillance d'une installation de processus au moyen d'un bus de champ FB d'automatisation des processus, par l'intermédiaire duquel plusieurs appareils de champ F1-F4 échangent avec une unité de commande de processus SPS des télégrammes concernant la commande de processus dans le cadre d'une communication de données régulière. Selon ce procédé, les télégrammes transmis à la commande de processus SPS par le bus de champ TR sont lus par une application de surveillance UA qui contrôle dans les télégrammes les données pertinentes pour l'application de surveillance UA. Les données pertinentes pour l'application de surveillance UA sont traitées comme valeurs réelles dans une application de modèle de processus qui fait partie de l'application de surveillance. Lorsqu'un écart significatif est déterminé entre les valeurs nominale et réelle, un signal d'erreur est généré.
EP08802996A 2007-09-12 2008-08-11 Procédé de surveillance d'une installation de processus au moyen d'un bus de champ d'automatisation des processus Withdrawn EP2188600A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007043328A DE102007043328A1 (de) 2007-09-12 2007-09-12 Verfahren zur Überwachung einer Prozessanlage mit einem Feldbus der Prozessautomatisierungstechnik
PCT/EP2008/060499 WO2009033904A2 (fr) 2007-09-12 2008-08-11 Procédé de surveillance d'une installation de processus au moyen d'un bus de champ d'automatisation des processus

Publications (1)

Publication Number Publication Date
EP2188600A2 true EP2188600A2 (fr) 2010-05-26

Family

ID=40348455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08802996A Withdrawn EP2188600A2 (fr) 2007-09-12 2008-08-11 Procédé de surveillance d'une installation de processus au moyen d'un bus de champ d'automatisation des processus

Country Status (4)

Country Link
US (1) US9316521B2 (fr)
EP (1) EP2188600A2 (fr)
DE (1) DE102007043328A1 (fr)
WO (1) WO2009033904A2 (fr)

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Also Published As

Publication number Publication date
DE102007043328A1 (de) 2009-03-19
WO2009033904A2 (fr) 2009-03-19
US9316521B2 (en) 2016-04-19
WO2009033904A3 (fr) 2009-05-22
US20100287277A1 (en) 2010-11-11

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