EP1430458B1 - Procede de surveillance d'une installation d'automatisation - Google Patents

Procede de surveillance d'une installation d'automatisation Download PDF

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Publication number
EP1430458B1
EP1430458B1 EP02774423A EP02774423A EP1430458B1 EP 1430458 B1 EP1430458 B1 EP 1430458B1 EP 02774423 A EP02774423 A EP 02774423A EP 02774423 A EP02774423 A EP 02774423A EP 1430458 B1 EP1430458 B1 EP 1430458B1
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EP
European Patent Office
Prior art keywords
state
terminal
transition
state value
component
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
EP02774423A
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German (de)
English (en)
Other versions
EP1430458A2 (fr
Inventor
Peter Becker
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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Publication date
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Publication of EP1430458A2 publication Critical patent/EP1430458A2/fr
Application granted granted Critical
Publication of EP1430458B1 publication Critical patent/EP1430458B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link

Definitions

  • the invention relates to a method for monitoring a Automation system with one control unit and several Terminals.
  • the invention relates to the safe Detection of several signal changes in a message telegram between Terminal and control unit in an automation system according to the preamble of claim 1.
  • the object of the present invention is a method specify with which at least some of the preceding State changes can also be reconstructed later can.
  • the message telegram is extended to the If necessary, tell the control unit that via the from the Message telegram readable transitions beyond another transition took place. This will be one or two more Binary information per signal provided. If the message telegram In addition, the current state of the terminal transmits, so can from the comparison of the previous with the current state of the terminal to further transitions be closed or a plausibility check by the message telegram transmitted information performed become.
  • an associated value information in the message telegram at least one associated value information component is provided, the assignment of at least one of the transition components and the associated value information.
  • An advantage of the invention is that the control unit based on the received signal state S1 and the event information E01 and E10 the waveform of the last two Can simulate signal change.
  • Figure 1 is an automation system with two terminals 1 and 2 and a control unit 3 shown.
  • the Controller includes an input keyboard 4 and a screen for displaying signals and status information with him connected terminals 1, 2 and depending on the scope of the automation system further, not shown terminals.
  • the controller 3 reads the different, asynchronous Messages of each terminal, so the staff to monitor the plant an overview of the Overall condition of the plant has and if necessary over the Control device 3 can intervene regulatory. (Here and in the Below is the "reading in” the recognition, capture and Editing messages of the terminals understood in the control unit, without these messages only at the respective terminal However, this is also possible is.)
  • the controller is always the current state of the Terminal - delayed - show and also at least the last transition cycle of the terminal ("0" -> "1”; “1” -> “0” or “1” -> “0”; “0” -> “1”).
  • Use cases falls to the second aspect a special Meaning of: For status messages (so-called “Events”) it is important to determine if an event has taken place or not, z. B. if a flap in the Plant opened and closed again. How often this happens is of minor importance and will, if necessary, determined in the terminal and is then available as additional information to disposal.
  • the terminal At a time t0, the terminal is in one logical state, denoted by "0". This state value For example, when commissioning the Automation system present or he can at a later Time has been reached. In the first case is the Control unit 3, the state value of the terminal 1 is not immediate and the original state value becomes only by notifying a change in state of the terminal 1 recognized to the control unit 3.
  • a transition of the terminal 1 takes place from a logical state value "0" to a logical state State value "1".
  • This transition triggers the output of a Message telegram by the terminal 1 off.
  • the message telegram includes a state component S1 that is an identical image the state value of the terminal 1 is.
  • the Message telegram is read in by the control unit 3.
  • the Reading takes place over a certain period of time, it is through an oblique arrow from a lower to an upper level indicated in the figure 1.
  • Next to the arrow is the content of the Message telegram specified, in this case, only from the state component S1, the content of which is "1", i. H. of the new state value is that the terminal 3 is now taken Has.
  • the reading is finished at a time after t1.
  • a signal D1 the corresponds to a representation of the state value S1 of the terminal 1, from a logical state value "0" to a logical state State value "1" is set. (Here is the simplicity provided that a state value transition of the terminal in one direction a transition of the signal D1 in same direction. This is not a requirement for the implementation of the invention and those skilled in the art clear that the relationship between state S1 and presentation signal D1 can also be chosen as a complement.)
  • the control unit 3 sets an acknowledgment signal the sender terminal 1, with which it tells the terminal 1, that the message telegram of the terminal 1 of the Control unit 3 has been successfully read. Also the Transmission of the acknowledgment signal has a certain period of time, indicated by an oblique arrow Q from the upper level the lower level is shown. The subsequent resting state the communication between terminal 1 and control unit 3 is at the lower level by a horizontal arrow indicated. During this time, the terminal 1 processes the Notification of the control unit 3.
  • the terminal 1 Only then can the terminal 1 send a message to the control unit 3 that a another transition has taken place.
  • a transition has in the illustrated example, at time t2, shortly after the first message is sent from the terminal 1 to the controller 3.
  • the transition at time t2 found the communication between the terminal 1 and the Control unit 3 and the processing in the terminal 1 and in the control unit 3 instead.
  • the second state value transition of The logical "1" to the logical "0" was therefore used by the Terminal 1 cached and is only now to the Control unit 3 discontinued.
  • the display signal D1 is turned on "0" is set, and in this case the control unit 3 escapes no crossing.
  • FIG. 2 shows an extended message telegram which the communication between the terminal 1 and the control unit 3 at a higher rate of state value changes of the terminal 1 allows.
  • QTM acknowledgeledgment triggered Report
  • the state value "1" of the Terminal 1 thus corresponds to the last reported, and the Controller 3 would a - already completed - state value transition of the terminal 1 do not recognize. But to also to document the already completed transition, the component OV is set to "1" at the next message telegram set, which indicates to the control unit 3 that except the notified Transitions also a "hidden” transition took place.
  • the display signal is set from “1” to "0".
  • the display signal D1 immediately on Set to "1” to account for the "hidden” transition.
  • the resulting display signal D1 is shown in FIG shown on the top right.
  • FIG. 3 is a Example with a state component S1 and a state component S2 of the message telegram shown.
  • the "hidden” transition S1 is lost at t2 and t4. This would also come with an additional component OV of the Do not change the message telegram because the system has this component OV no longer uniquely assign one of the state values S1 and S2 could.
  • FIG. 4 shows an embodiment for the reliable detection of Condition value transitions at several possible states of the Terminal in QTM method by extension of the message telegram shown.
  • the message state is in principle another Binary information is required for each reported signal.
  • has the controller does not or is the message state Information difficult to determine, eg. B. in the startup situation of the control unit, are next to the respective state component at least two more binary information for each state component necessary.
  • the message telegram contains at least a first transition component E01, which is a transition from a first state value to indicates a second state value, and a second transition component E10, which is a transition from the second state value to the first state value.
  • each signal receives the additional binary information E01 (state value changes from “0” to “1”) and E10 (State value changes from “1” to “0”). He follows a state value transition, this will be in the corresponding Event bit E01 or E10 recorded. (The components S1, E01, E10, S2, ... are listed at the bottom right of the figure.) After sending the message after the time t1 deleted this event information. The following Events at t2 and after are collected and received the acknowledgment signal Q reported to the controller. The control unit can based on the received signal state S1 and the event information E01 and E10 den Trace waveform of the last two signal changes.
  • the values in the message telegram at t5 show the control unit 3 both that, the current state value S1 is "1" as well as since the last message telegram two transitions have taken place.
  • the presentation signal D1 to the first state of the terminal 1 as in Figure 4 shown at the top right, the course of the transitions (qualitatively) reconstruct, namely through the transitions "0" to "1", “1" to "0” and "0" to "1". This corresponds to the Transitions from S1.
  • the transitional components become E01 and E10 reset to S1 at "0".
  • t3 also has a transition from S2 from "0" to "1". This sets S2 to "1” and E01 also set to "1". These values persist until they are communicated to the control unit in a message telegram. This takes place at the time t5. Only after that will be the transition components E01 and E10 to S2 reset to "0".
  • the system according to the invention can be extended if the State component S1 or S2 of the message telegram a indicates current state value of the terminal 1 and the Control unit 3, the current state value of the terminal. 1 with a preceding state value of the same terminal 1 compares. Depending on the comparison result and the respective transitional component E01 or E10 can so State value transitions of the respective terminal 1 or 2 before be reached the achievement of the current state value.
  • the control unit more Information informs.
  • the accompanying information be a time indication that the Control unit tells when the state transition at a Terminal was detected.
  • the invention becomes such an associated value information in at least one associated value information component to the message telegram supplied with the assignment of the corresponding Transitional components and the associated associated value information ensures.
  • the companion value information component becomes set to Sn at "1" when the time indication in the associated value information on a state transition from Sn. Be in at the same time the terminal also other state transitions detected so are accordingly, additional associated value information components Set to "1".
  • transition from Sn is the only state transition, which was recognized at the time and will only a time information from the terminal to the controller is output, so only an associated value information component set to "1", all others remain at "0". modifications the extension of the message telegram by associated value information components are obvious to the skilled person and will not be explained further.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Communication Control (AREA)
  • Selective Calling Equipment (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Claims (3)

  1. Procédé de surveillance d'une installation d'automatisation qui comprend :
    au moins un terminal (1, 2) qui peut accepter au moins deux états indépendants comportant à chaque fois deux valeurs d'état possibles et qui délivre un télégramme de signalisation qui dépend des deux états ou plus, le télégramme de signalisation comportant au moins une composante d'état (S1, S2), et
    un appareil de commande (3) qui lit le télégramme de signalisation en provenance du terminal ou des terminaux (1, 2), le terminal ou les terminaux (1, 2) ne délivrant un autre télégramme de signalisation qu'après avoir reçu un signal d'accusé de réception (Q) de l'appareil de commande (3),
       caractérisé par le fait que
    le télégramme de signalisation contient au moins une première composante de transition (E01) qui indique une transition d'une première valeur d'état à une deuxième valeur d'état de l'un des deux états ou plus et au moins une deuxième composante de transition (E10) qui indique une transition de la deuxième valeur d'état à la première valeur d'état de l'un des deux états ou plus,
    la ou les composantes d'état (S1, S2) du télégramme de signalisation indiquent une valeur d'état momentanée de l'un des deux états ou plus du terminal (1, 2),
    l'appareil de commande (3) compare la valeur d'état momentanée de cet état du terminal (1, 2) à une valeur d'état précédente de cet état du terminal (1, 2) et, en fonction du résultat de la comparaison et de la première et/ou deuxième composante de transition (E01, E10), on détermine des transitions d'état du terminal respectif (1, 2) avant d'atteindre la valeur d'état momentanée.
  2. Procédé selon la revendication 1, caractérisé par le fait que le télégramme de signalisation comporte une information de valeur secondaire et que le télégramme de signalisation comporte au moins une composante d'information de valeur secondaire qui établit une association entre au moins l'une des composantes de transition et l'information de valeur secondaire.
  3. Procédé selon la revendication 1 ou 2, caractérisé par le fait que toutes les composantes (S1, S2, E01, E10) du ou des télégrammes de signalisation sont représentées en binaire.
EP02774423A 2001-09-26 2002-09-26 Procede de surveillance d'une installation d'automatisation Expired - Lifetime EP1430458B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10147490 2001-09-26
DE10147490A DE10147490A1 (de) 2001-09-26 2001-09-26 Verfahren zum Überwachen einer Automatisierungsanlage
PCT/DE2002/003650 WO2003027984A2 (fr) 2001-09-26 2002-09-26 Procede de surveillance d'une installation d'automatisation

Publications (2)

Publication Number Publication Date
EP1430458A2 EP1430458A2 (fr) 2004-06-23
EP1430458B1 true EP1430458B1 (fr) 2005-08-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP02774423A Expired - Lifetime EP1430458B1 (fr) 2001-09-26 2002-09-26 Procede de surveillance d'une installation d'automatisation

Country Status (7)

Country Link
US (1) US6895369B2 (fr)
EP (1) EP1430458B1 (fr)
CN (1) CN100407240C (fr)
AT (1) ATE302452T1 (fr)
DE (3) DE10147490A1 (fr)
ES (1) ES2248612T3 (fr)
WO (1) WO2003027984A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10212131A1 (de) * 2002-03-19 2003-10-02 Siemens Ag Verfahren zum Überwachen einer Automatisierungsanlage
DE102016101767A1 (de) 2016-02-02 2017-08-03 Phoenix Contact Gmbh & Co. Kg Automatisierungsgerät

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT371259B (de) * 1981-10-28 1983-06-10 Schrack Elektronik Ag Informationsuebertragungsanordnung
DE3215081A1 (de) * 1982-04-22 1983-11-03 Siemens AG, 1000 Berlin und 8000 München System zur uebertragung von informationstelegrammen
EP0345493B1 (fr) * 1988-06-08 1994-03-09 Landis & Gyr Technology Innovation AG Dispositif de surveillance, de commande et de régulation d'une installation technique de systèmes d'automation de bâtiments
JP2874032B2 (ja) * 1990-11-27 1999-03-24 富士通株式会社 ソフトウェア作業ツール
US5469150A (en) * 1992-12-18 1995-11-21 Honeywell Inc. Sensor actuator bus system
CH685897A5 (de) * 1993-01-26 1995-10-31 Royale Consultants Ltd Verfahren und Einrichtung zur bidirektionalen Informationsuebertragung (Protokoll)
JP3191275B2 (ja) * 1993-02-22 2001-07-23 横河電機株式会社 スイッチング電源装置
EP0616176B1 (fr) * 1993-03-15 1998-07-22 TEMIC TELEFUNKEN microelectronic GmbH Système de réception des données de commande pour installation de climatisation
DE4443959A1 (de) * 1994-12-09 1996-06-20 Walter Dr Mehnert Verfahren zur seriellen Übertragung von digitalen Meßwerten
US5765000A (en) * 1994-12-29 1998-06-09 Siemens Energy & Automation, Inc. Dynamic user interrupt scheme in a programmable logic controller
DE19801137A1 (de) * 1998-01-14 1999-07-22 Siemens Ag Fehlersichere Prozesseingabe und Prozessausgabe
KR100414932B1 (ko) * 1998-01-24 2004-04-03 삼성전자주식회사 이동통신시스템의데이타통신방법
US6016523A (en) * 1998-03-09 2000-01-18 Schneider Automation, Inc. I/O modular terminal having a plurality of data registers and an identification register and providing for interfacing between field devices and a field master

Also Published As

Publication number Publication date
DE10147490A1 (de) 2003-04-17
US20050027372A1 (en) 2005-02-03
WO2003027984A2 (fr) 2003-04-03
DE10294374D2 (de) 2004-08-05
US6895369B2 (en) 2005-05-17
EP1430458A2 (fr) 2004-06-23
DE50203983D1 (de) 2005-09-22
ATE302452T1 (de) 2005-09-15
ES2248612T3 (es) 2006-03-16
CN100407240C (zh) 2008-07-30
WO2003027984A3 (fr) 2003-08-14
CN1561510A (zh) 2005-01-05

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