WO2005015327A1 - Procede d'actualisation d'un ensemble de donnees d'une premier dispositif de traitement de donnees - Google Patents

Procede d'actualisation d'un ensemble de donnees d'une premier dispositif de traitement de donnees Download PDF

Info

Publication number
WO2005015327A1
WO2005015327A1 PCT/DE2004/001402 DE2004001402W WO2005015327A1 WO 2005015327 A1 WO2005015327 A1 WO 2005015327A1 DE 2004001402 W DE2004001402 W DE 2004001402W WO 2005015327 A1 WO2005015327 A1 WO 2005015327A1
Authority
WO
WIPO (PCT)
Prior art keywords
data processing
processing device
data
electronic
values
Prior art date
Application number
PCT/DE2004/001402
Other languages
German (de)
English (en)
Inventor
Oliver SCHRÖDEL
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2005015327A1 publication Critical patent/WO2005015327A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/10—Protocols in which an application is distributed across nodes in the network
    • H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes

Definitions

  • the data or information is initially located within a database on a central computer, e.g. a so-called server.
  • a central computer e.g. a so-called server.
  • One or more computers for example so-called clients, can be connected to this server, via which a user can use special programs to access the data or information stored by the server.
  • the required data must be transferred from the server to the corresponding client.
  • the connection between the server and the clients is usually via a network. Server and client are very often connected to each other via the Internet.
  • the client has the option of using special programs to access the transmitted data and to display or process it.
  • programs are essentially so-called web browsers, such as the Netscape Navigator TM or the Internet Explorer TM.
  • Data content for example the transmitted HTML document.
  • On the server if necessary. Any changes in the original information content will no longer be passed on to the client after the transfer.
  • Such a regular update is e.g. B. in the field of automation technology of great importance.
  • an automation system i.e. a system for controlling, guiding and monitoring various systems, such as Electrical energy systems (e.g. energy transmission lines, switchgear, electrical machines) and process engineering systems (e.g. sewage treatment plants), for example, several so-called field devices are connected to a server.
  • the field devices for example, provide information about their respective status, measured values recorded by the respective system, status information as well as event and alarm messages to the server on which they are stored (see e.g.
  • a user who accesses the server via a client initially only receives a static overview, a snapshot, so to speak, of that at the time of transmission
  • Server stored data content and no dynamic adaptation of the information displayed on the client to new events transmitted from the field devices to the server.
  • Previously common methods for updating a client's database provide, for example, that in regular Intervals the data of the server can be retrieved from the server from scratch. Any changes that have occurred are also transferred to the client and displayed there.
  • a "Refresh" button is available in a control bar of Internet Explorer TM, and when activated, a request is sent to the server to retrieve the corresponding HTML document from the server.
  • This procedure can also be automated, ie there is a command in the HTML code of the respective HTML page which triggers a cyclical update of the respective HTML page at predefinable time intervals. For example, an HTML document can be retrieved from the server every five seconds in this way.
  • the disadvantage of this method is a partially unnecessary data traffic between the two data processing devices, which contributes to increased network load.
  • the invention is based on the object of specifying a method for updating a database of a first data processing device, in which the smallest possible amounts of data are transmitted between the first data processing device and a second data processing device.
  • the invention proposes a method for updating a database of a first data processing device, in which the following steps are carried out: sending an electronic request from the first data processing device to a second data processing device for requesting data values from a database stored on the second data processing device; Generating a first electronic response by means of the second data processing device, the first electronic response comprising data values of the requested database currently stored on the second data processing device; Sending the first electronic response to the first data processing device; Storing the data values received with the first electronic response on the first data processing device; Generating a respective further electronic response by means of the second data processing device if new data values are stored in each case on the second data processing device, the respective further electronic response comprising these new data values; Sending the respective further electronic response to the first data processing device and attaching the data values received with the respective further electronic response to the data values already stored on the first data processing device while updating the database of the first data processing device.
  • the main advantage of the method according to the invention is that comparatively little data has to be exchanged between the first and the second data processing device.
  • an electronic request only has to be sent once from the first data processing device to the second data processing device; in the subsequent cases, only one communication takes place from the second data processing device. Processing device to the first data processing device instead. This results in a significant reduction in the inquiries and answers exchanged between the first and the second data processing device.
  • Another advantage is that the further electronic responses are only generated and sent to the first data processing device if something has actually changed in the database of the second data processing device or a change has occurred. In other words, there is no data traffic between the first and the second data processing device as long as nothing changes on the second data processing device.
  • data values are understood to mean all types of electronic data and information; In connection with automation systems, this includes, for example, measurement data, status values, parameter values, device settings, error messages, alarm signals and event messages.
  • alarm and / or event messages are used as data values.
  • the method according to the invention is particularly suitable for such alarm and event messages because they are not generated at regular intervals and therefore a transmission is only necessary if new messages have actually been stored on the second data processing device.
  • a further advantageous development of the method according to the invention provides that the data values stored on the second data processing device after they have been sent to the first data processing device are deleted in each case. This has the advantage that all of the data in the database need not be kept on the second data processing device and storage space on the second data processing device can be saved in this way.
  • a further advantageous embodiment of the method according to the invention provides that software interfaces are used in the first and the second data processing device for generating and exchanging the electronic request and the electronic responses.
  • software interfaces are used in the first and the second data processing device for generating and exchanging the electronic request and the electronic responses.
  • standardized software modules for communication be- 'see the two data processing devices are used.
  • Such software interfaces can be, for example, so-called JAVA applets, i.e. small program modules in the Java programming language.
  • a web service is a method defined by the W3C standardization body for data exchange between individual computers or applications running on them (cf. in particular on the Internet at www.de3.org/2002/ws/).
  • the use of web services has the advantage that they can be used for communication between different data processing devices regardless of operating systems and hardware configurations.
  • the respective electronic response is generated when a predeterminable number of new data values of the requested data stock on the second data processing device have been stored. In this way, the data traffic between the two data processing devices can be reduced even further.
  • a further advantageous embodiment of the method according to the invention further provides that the first data processing device sends an electronic request to the second data processing device to end the update of its database and the second data processing device sends the respective further electronic responses to the first after receiving the electronic request Data processing device sets. In this way, it can be communicated to the second data processing device in a simple manner that no further transmissions to the second data processing device should take place.
  • the first data processing device sends an electronic acknowledgment of receipt to the second data processing device after receiving each electronic response from the second data processing device.
  • the functionality of the communication connection between the two data processing devices can be checked in a particularly simple manner. If the acknowledgment of receipt is not received, for example, an error message can be generated by the second data processing device.
  • the second data processing device stops sending the respective further electronic responses to the first data processing device if the expected electronic confirmation of receipt fails to appear.
  • a client or user data processing device of an automation system is used as the first data processing device and a server data processing device of the automation system is used as the second data processing device.
  • the method according to the invention can thus be used particularly advantageously in automation systems, such as, for example, process engineering systems, systems for automated production or else in automated systems for electrical energy supply systems.
  • a data processing device belonging to at least one field device of the automation system is used as the server data processing device.
  • the method according to the invention can be used to transmit measurement data, status values, parameter values, device settings, error messages, alarm signals and event messages, which occur on field devices of the automation system, particularly advantageously when they arise to the user data processing device, for example in a central measuring point.
  • the method also provides that the electronic inquiries and the electronic responses are transmitted via a network. In this way, the method according to the invention can be used comparatively simply since
  • an intranet or the Internet is used as the network.
  • common Internet protocols and transmission methods can advantageously be used.
  • a wireless network is used.
  • hard-wired sections can largely be dispensed with, for example in automation systems which already exist and are difficult to wire.
  • FIG. 1 shows a first method diagram of a method for updating a database of a first data processing device
  • FIG. 2 shows a second method diagram of a method for updating a database of a first data processing device, in
  • FIG. 3 shows a third method diagram of a method for updating a database of a first data processing device
  • Figure 4 is a block diagram of a schematic representation of an automation system shown.
  • FIG. 1 schematically indicates a first data processing device 1 and a second data processing device 2.
  • a method for updating the database of the first data processing device 1 will be explained below with reference to FIG. 1.
  • the first data processing device 1 generates an electronic request in order to request data values from the second data processing device 2.
  • the electronic request for requesting the data values of the selected database is transmitted to the second data processing device 2 in a first transmission step 12.
  • the second data processing device 2 then generates an electronic response that contains the data values of the requested database currently stored on the second data processing device 2.
  • the electronic response is transmitted to the first data processing device 1 in a second transmission step 14.
  • the first data processing device 1 receives the data values of the requested database supplied with the electronic response and stores them in a storage area provided for this purpose.
  • the second data processing device 2 then continuously checks whether new data values are stored that have not yet been transferred to the first data processing device 1. If such new data values are stored on the second data processing device 2, this generates them in a second response step 16, another electronic response containing these new data values. In a further transmission step 17, this further electronic response is transmitted to the first data processing device 1 and added there to the already stored data values in a further storage step 18 while updating the data stock already stored on the data processing device 1.
  • the second data processing device 2 recognizes in the further course that further new data values have again been stored in a memory area of the second data processing device, that is to say additional data values to those already sent with the first electronic response and the subsequent further electronic response, the second data processing device generates in a further response step 16 ', a second further electronic response, which contains these most recent additional data values of the requested database, and transmits them to the first data processing device 1 in a further transmission step 17, which stores and appends the data values received with this electronic response the data values of the existing data stock. This update process is then repeated continuously, as is indicated by the repetition symbol 19.
  • the described method for data update is thus a type of "data subscription", in which the first data processing device 1 only has to transmit an electronic request to the second data processing device 2 once to initiate the data subscription, with this first request, for example, the requested data type is defined, such as "voltage measurement values of voltage sensor A" or "all data values received on the second data processing device” (that is, all data values without taking their respective data type into account), and at the same time an address of the first data processing device 1 is transmitted so that second data processing device 2 can send the data values back to the correct recipient, that is to say the first data processing device 1.
  • the requested data type is defined, such as "voltage measurement values of voltage sensor A" or "all data values received on the second data processing device” (that is, all data values without taking their respective data type into account)
  • an address of the first data processing device 1 is transmitted so that second data processing device 2 can send the data values back to the correct recipient, that is to say the first data processing device 1.
  • a further advantage is that the transmission of data values from the second data processing device 2 to the first data processing device 1 takes place in an event-oriented manner, that is to say only when there are really new data values on the second data processing device 2.
  • the second data processing device 2 does not send each newly arrived data value individually to the first data processing device 1, but waits until a predeterminable number of new data values have been stored and then sent them in a single electronic response to the first Data processing device 1 sent.
  • These "collective responses" can of course only be used if the requested data values are not time-sensitive data values, for example alarm messages in an automation system.
  • the measures mentioned allow unnecessary data traffic on a between the first and the second day largely avoid existing processing medium, such as a data line or a communication network.
  • the second data processing device 2 can delete them from their own memory area after the data values have been sent to the first data processing device 1. Storage space can thus be effectively saved on the second data processing device 2.
  • the second data processing device 2 can be a field device of an automation system, for example an electrical protection device, in which usually only limited storage capacities are available. In the manner described, this limited storage capacity of the field device can be used comparatively effectively.
  • Deleting the data values from the second data processing device after they have been sent to the first data processing device is understandably only suitable if, in addition to the first data processing device, no other data processing devices access the database of the second data processing device. In such a case, the data update between the second data processing device and each “subscriber” takes place analogously to the procedure described, without the data values being deleted by the second data processing device.
  • FIG. 2 largely shows the same method as explained for FIG. 1. Corresponding method steps are therefore identified with the same reference symbols.
  • FIG. 2 also shows a possibility how the first data processing device 1 can stop the sending of further data values from the second data processing device 2, that is to say cancels the data subscription, so to speak.
  • the first data processing device 1 generates an electronic request in a request step 21 and sends this to the second data processing device 2 in an additional transmission step 22.
  • the second data processing device 2 then provides the transmission of further electronic answers in a setting step 23 with additional data values to the first data processing device 1.
  • a first data processing device 1 that is only temporarily connected to a network can receive data values from the second data processing device 2 for a limited period of time and, before being disconnected from the network, can move the second data processing device 2 by means of an electronic request to no further data values to be sent to the first data processing device 1. This in turn can prevent unnecessary network traffic.
  • FIG. 3 shows a further exemplary embodiment of the method for updating the database of the first data processing device 1. Process steps corresponding to the two previous figures are again identified by the same reference symbols. According to FIG.
  • the first data processing device 1 receives the data values transmitted with the first electronic response from the second data processing device 2 in a storage step 31 and at the same time generates an electronic acknowledgment of receipt which is transmitted to the second data processing device 2 in a transmission step 32.
  • the second data processing device 2 receives this electronic confirmation of receipt in a receiving step 33.
  • the method is carried out analogously for each further electronic response from the second data processing device 2 to the first data processing device 1;
  • the second data processing device 2 consequently receives an acknowledgment of receipt after each transmission of an electronic response to the first data processing device 1.
  • This method can be used, for example, for particularly sensitive data in which the communication line between the two data processing devices is to be monitored at the same time in order to ensure that the electronic responses with the data values definitely reach the first data processing device 1.
  • the sending of electronic acknowledgments increases the data traffic in the network compared to the method explained for example in FIG. 1, the total data traffic on the network, which is caused by the data update with acknowledgments, is still comparatively small, since the Sending electronic replies and confirmations of receipt is still event-oriented, i.e. only if there is actually a change in the database on the second
  • the first data processing device 1 no longer sends an electronic confirmation of receipt to the second data processing device 2 in response to an electronic response generated in a response step 34 and transmitted in a transmission step 35, in a receiving step 36, but merely stores the received data values.
  • this can mean, for example, that the data line between the two data processing devices is disturbed.
  • the sending of the most recent electronic response to the first data processing device 1 can be repeated; if necessary, an error message can also be generated and displayed.
  • the absence of the electronic acknowledgment of receipt can also be used to cancel the data subscription without having to send another electronic request from the first data processing device 1 to the second data processing device 2.
  • the second data processing device 2 can be set such that if the electronic acknowledgment of receipt of an electronic response transmitted to the first data processing device 1 fails, it stops further electronic responses with data values being sent to the first data processing device 1. This method is suitable, for example, when the first data processing device 1 is removed from the network without having to send an electronic request to the second data processing device 2 beforehand.
  • An automation system 40 is shown by way of example in FIG. 4, in which the described method for data update can be used.
  • the automation system 40 serves to automate a process not shown in FIG. 4, which can be, for example, a process engineering process, an automated manufacturing process or a transmission system for electrical energy.
  • an electrical energy transmission system is assumed to be a process to be automated.
  • Field devices 41, 42, 43 and 44 that is to say, for example, electrical control devices or electrical protective devices for controlling and monitoring the energy transmission system, are connected to the process via measuring transducers and sensors, likewise not shown in FIG. 4. These are in turn connected to one another via a bus system 45 for communication.
  • the field devices 41 and 42 each have their own data processing device 41a and 42a, while the field devices 43 and 44 have a common data processing device 46 to which they are connected via part of the data bus 45.
  • the automation system 40 has user data processing devices 47 and 48, with which the measurement data, status values, event values, parameters, alarms, warnings and other signals received from the process by the field devices 41, 42, 43 and 44 are to be processed and displayed.
  • the respective data stock of such data and information collectively referred to as data values, must be updated on the data processing devices 47 and 48.
  • the user data processing devices 47 and 48 are over one Network, for example the Internet or an intranet 49 and the bus system 45 connected to the field devices 41 to 44.
  • the method for data update explained above is used, for example, to update the data stock of the user data processing device 47 with respect to e.g. B. continuously updated voltage measurement values recorded by the field device 42 and / or event messages generated by the field device 42, such as an excess voltage.
  • the user data processing device 47 has a software interface 47, which can be a web service interface, for example.
  • the data processing device 42a of the field device 42 also has a software interface 42b, which can also be a web service interface.
  • the user data processing device 47 now sends an electronic request via the software interface 42b to the data processing device 42a of the field device 42 via its software interface 47a and thus requests data values. These are transmitted in the opposite direction from the data processing device 42a to the user data processing device 47.
  • the transmitted data values can be both data values of a special type (for example only alarm messages) and also all data values stored on the second data processing device 2 without taking their respective data type into account.
  • the respective required data type can e.g. B. be set with the first electronic request.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Computer And Data Communications (AREA)

Abstract

L'invention concerne un procédé d'actualisation d'un ensemble de données d'un premier dispositif de traitement de données, et a pour but de ne transférer qu'une quantité de données relativement faible entre le premier dispositif de traitement de données et un second dispositif de traitement de données. Conformément à l'invention, une première demande électronique est tout d'abord émise à partir du premier dispositif de traitement de données, et transmise à un second dispositif de traitement de données, en vue d'exiger des valeurs de données d'un ensemble de données stockées dans le second dispositif de traitement de données. Au moyen du second dispositif de traitement de données, une première réponse électronique est générée avec des valeurs de données, stockées provisoirement dans le second dispositif de traitement de données, de l'ensemble de données transportées, et transmise au premier dispositif de traitement de données, où les valeurs de données sont stockées. Au moyen du second dispositif de traitement de données, une autre réponse électronique respective est générée par la suite, lorsque de nouvelles valeurs de données sont stockées, respectivement, dans le second dispositif de traitement de données. Les nouvelles valeurs de données sont transmises au premier dispositif de traitement de données et, par actualisation de l'ensemble de données du premier dispositif de traitement de données, sont jointes aux valeurs de données déjà stockées dans le premier dispositif de traitement de données.
PCT/DE2004/001402 2003-08-06 2004-06-30 Procede d'actualisation d'un ensemble de donnees d'une premier dispositif de traitement de donnees WO2005015327A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003136707 DE10336707A1 (de) 2003-08-06 2003-08-06 Verfahren zum Aktualisieren eines Datenbestandes einer ersten Datenverarbeitungseinrichtung
DE10336707.1 2003-08-06

Publications (1)

Publication Number Publication Date
WO2005015327A1 true WO2005015327A1 (fr) 2005-02-17

Family

ID=34129527

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/001402 WO2005015327A1 (fr) 2003-08-06 2004-06-30 Procede d'actualisation d'un ensemble de donnees d'une premier dispositif de traitement de donnees

Country Status (2)

Country Link
DE (1) DE10336707A1 (fr)
WO (1) WO2005015327A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0838768A2 (fr) * 1996-10-25 1998-04-29 Hewlett-Packard Company Appareil d'interfaçage avec le réseau en toile Web
EP0847008A2 (fr) * 1996-12-03 1998-06-10 Hewlett-Packard Company Accès et commande d'un appareil utilisant une fonctionnalité intégrée d'accès au web
WO2000077592A2 (fr) * 1999-06-11 2000-12-21 The Foxboro Company Procede et appareil de commande utilisant des dispositifs de commande qui realisent un environnement de machine virtuelle et qui communiquent via un reseau en protocole internet
US20030208297A1 (en) * 2000-03-31 2003-11-06 Schneider Automation System for accessing a programmable automatism unit based on a wap architecture

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19543843C2 (de) * 1995-11-24 2001-02-08 Acer Peripherals Inc Verfahren zur Aktualisierung der Software in einem mikrocomputergestützten Telefon
DE19845823A1 (de) * 1998-09-25 2000-04-06 Siemens Ag Verfahren zum Übertragen von Daten in einen Speicher eines insbesondere mit einem Kommunikationsnetz in Verbindung stehenden Gerätes
JP3254434B2 (ja) * 1999-04-13 2002-02-04 三菱電機株式会社 データ通信装置
DE19952545C2 (de) * 1999-11-02 2003-06-18 Siemens Ag Synchronisation der Datenbestände von redundanten Speichervorrichtungen
DE10046319A1 (de) * 2000-09-19 2002-04-04 Siemens Ag Vorrichtung und Verfahren zum Synchronisieren von Datenbanken in verteilten Kommunikationssystemen
US7000008B2 (en) * 2001-04-16 2006-02-14 Sun Microsystems, Inc. Method, system, and program for providing data updates to a page including multiple regions of dynamic content
US20030005306A1 (en) * 2001-06-29 2003-01-02 Hunt Preston J. Message digest based data synchronization
US20030093440A1 (en) * 2001-11-06 2003-05-15 John Merrells Replica update vectors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0838768A2 (fr) * 1996-10-25 1998-04-29 Hewlett-Packard Company Appareil d'interfaçage avec le réseau en toile Web
EP0847008A2 (fr) * 1996-12-03 1998-06-10 Hewlett-Packard Company Accès et commande d'un appareil utilisant une fonctionnalité intégrée d'accès au web
WO2000077592A2 (fr) * 1999-06-11 2000-12-21 The Foxboro Company Procede et appareil de commande utilisant des dispositifs de commande qui realisent un environnement de machine virtuelle et qui communiquent via un reseau en protocole internet
US20030208297A1 (en) * 2000-03-31 2003-11-06 Schneider Automation System for accessing a programmable automatism unit based on a wap architecture

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"DISK DRIVE WITH EMBEDDED HYPER-TEXT MARKUP LANGUAGE SERVER", IBM TECHNICAL DISCLOSURE BULLETIN, IBM CORP. NEW YORK, US, vol. 38, no. 12, 1 December 1995 (1995-12-01), pages 479, XP000588211, ISSN: 0018-8689 *

Also Published As

Publication number Publication date
DE10336707A1 (de) 2005-04-21

Similar Documents

Publication Publication Date Title
DE60300432T2 (de) Vorrichtung und Verfahren zur Optimierung des Netzwerkverkehrs
EP1436677B1 (fr) Procede de mise en service d'un systeme de commande et de surveillance d'appareils de terrain
EP1436676B1 (fr) Procede permettant de faire fonctionner et d'observer des appareils utilisables in situ
EP1305930B1 (fr) Systeme et procede pour transmettre des donnees opc par l'intermediaire de reseaux de donnees, notamment par internet, au moyen d'une communication de donnees asynchrone
EP1527554B1 (fr) Reseau informatique comportant des noeuds informatiques de diagnostic
DE69921446T2 (de) Übertragungsstruktur für industrielle prozesssteuerungssysteme
EP1147642B1 (fr) Systeme et procede pour commander et surveiller un systeme d'automatisation sur internet au moyen d'une liaison internet asymetrique
WO2009083133A1 (fr) Procédé et dispositif permettant une communication client/serveur selon le protocole normalisé opc ua
DE10151119C2 (de) Verfahren zum Erfassen von mehreren Feldgeräten in einer Gerätekonfiguration
DE102004030781A1 (de) SCADA-System und Verfahren zum Betreiben eines solchen Systems
EP3985532B1 (fr) Gestion des certificats pour installations techniques
DE10038557A1 (de) System und Verfahren zur Übertragung von Daten über Datennetze, insbesondere Internet, mit asynchroner Datenverbindung
DE10242918A1 (de) System und Verfahren zum Aktualisieren von Informationen
WO2005015327A1 (fr) Procede d'actualisation d'un ensemble de donnees d'une premier dispositif de traitement de donnees
EP1518386B1 (fr) Systeme et procede de communication directe entre des appareils d'automatisation
EP1435026B1 (fr) Systeme et procede d'emission de donnees d'un appareil, en particulier d'un appareil d'automatisation, par l'intermediaire d'une interface normalisee avec remplacement de variables par l'intermediaire d'un serveur echo
DE10151117A1 (de) Verfahren zum Ausbilden einer Bedienfunktion von Feldgeräten und Feldgerät
WO2002013481A1 (fr) Systeme et procede de transmission de donnees par l'intermediaire de reseaux de donnees, avec conversion des donnees effectuee par un systeme de mise en ordre automatique com
DE10229879A1 (de) Datenverarbeitungssystem mit Diensten zur Bereitstellung von Funktionalitäten
EP1435025B1 (fr) Systeme et procede pour acceder a un appareil, en particulier a un appareil d'automatisation pourvu d'une interface normalisee
WO2003038536A2 (fr) Procede de transmission de donnees brutes et appareil utilisable in situ
DE10319887A1 (de) Verfahren zum Angleichen eines auf einer Client-Datenverarbeitungseinrichtung angezeigten Datenbestandes an einen auf einer Server-Datenverarbeitungseinrichtung gespeicherten Quelldatenbestand
EP1640860A1 (fr) Procédé et dispositif d'accès à des données d'inventaire
DE10218829A1 (de) Einfache und sichere Methode zum Sperren von Datensätzen aus CGI-Scripten heraus

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase