WO2008101912A1 - Procédé d'appel d'un programme d'automatisation dans un appareil d'automatisation et appareil d'automatisation - Google Patents

Procédé d'appel d'un programme d'automatisation dans un appareil d'automatisation et appareil d'automatisation Download PDF

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Publication number
WO2008101912A1
WO2008101912A1 PCT/EP2008/051968 EP2008051968W WO2008101912A1 WO 2008101912 A1 WO2008101912 A1 WO 2008101912A1 EP 2008051968 W EP2008051968 W EP 2008051968W WO 2008101912 A1 WO2008101912 A1 WO 2008101912A1
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WO
WIPO (PCT)
Prior art keywords
automation
program
web service
automation program
message
Prior art date
Application number
PCT/EP2008/051968
Other languages
German (de)
English (en)
Inventor
Ronald Schoop
Armando Walter Colombo
José LASTRA
Ivan Delamer
Original Assignee
Schneider Electric Automation Gmbh
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 Schneider Electric Automation Gmbh filed Critical Schneider Electric Automation Gmbh
Publication of WO2008101912A1 publication Critical patent/WO2008101912A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/54—Interprogram communication
    • G06F9/542—Event management; Broadcasting; Multicasting; Notifications
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2209/00—Indexing scheme relating to G06F9/00
    • G06F2209/54—Indexing scheme relating to G06F9/54
    • G06F2209/544—Remote

Definitions

  • the invention relates to a method for calling at least one realized as a web service automation program of an automation device, as well as an automation device with at least one implemented as a web service automation program, the web service comprises a web services stack.
  • SOA Service Oriented Architecture
  • Interoperability or full compatibility is facilitated by a clear abstraction of the interface or communication interface, which presents a service to its environment through the implementation of the service.
  • Basic interaction patterns of a device level SOA can be described on the basis of five functional levels: addressing, finding, writing, controlling, Event.
  • Devices are characterized as either controlling or controlled devices, but a given device can embody both roles and enable "peer-to-peer” interactions, as well as describing device-level service-oriented protocols, such as UPnP (Universal Plug and Play) including IP, TCP, UDP, HTTP, SOAP and XML.
  • UPnP Universal Plug and Play
  • DPWS Device Profiles for Web Services
  • DPWS The DPWS specifications define an architecture in which devices have two types of services: hosting services and hosted services. “Hosted Services” are mostly functionally dependent on their “hosting” device for discovery, and in addition to hosted services, DPWS specifies a set of built-in services:
  • Discovery Services Used by a device that connects to a network to spread the word and discover other devices.
  • Methoda Data Exchange Services Provides dynamic access to a hosted service of the device and its metadata, such as WSDL or XML schema definitions.
  • FIG. 1 shows a DPWS protocol stack. In this mean:
  • WSDL Web Services Discription Language
  • SOAP the protocol for transporting service-related messages formatted in accordance with their corresponding WSDL definitions
  • WS-Addressing is tightly connected to the SOAP and concentrates all addressing information into the header of the SOAP message wrapper, allowing the message content to be transmitted over any transport protocol (HTTP, SMTP, TCP, UDP, ...)
  • WS-Policy is used to express rules in connection with the Web Service in the form of "Policy Assertions", which complete the WSDL description of the service
  • WS-Metadata Exchange allows the dynamic retrieval of metadata associated with the web service (description, schema and policy), thus providing a web service self-checking mechanism
  • WS-Security is an optional set of mechanisms for securing end-to-end message integrity, confidentiality, and authenticity.
  • the DPWS protocol stack is shown in FIG. 1 and integrates all the standards presented above.
  • Web Service Core protocols described above supplements DPWS Web Service protocols for "Discovery” and "Preventing". For example
  • WS-Discovery is a protocol for "plug-and-play" discovery of network-connected resources. It defines a multicast protocol for searching for and finding devices. Once found, the device shows the services it provides.
  • WS-Eventing defines a "publish-subscribe" event-handling protocol that allows a web service to exchange event-related messages with other web services.
  • WS-Eventing is designed to implement a range of applications, from device-oriented to enterprise-scaled-published-subscribed systems, in the upper part of the same substrate.
  • each DPWS-based service has a specific WSDL description. This description is device specific; Thus, different device types have different WSDL descriptions with few similarities.
  • the DPWS service code relies on various functions to handle messages. These functions depend on the DPWS description of a particular service. For one service to communicate with another in this context, both services must implement each other's specific functions. Therefore, each time a new service is designed, each WDSL description must be compiled to generate a server code and a client code.
  • automation programs such as monitoring, control / guidance systems
  • the object is fiction, u. a. solved by a method having the features of claim 1 and by an automation device having the features of claim 13.
  • a web services interface enables remote access to an automation program.
  • An automation device comprises one or more individual automation programs as web services.
  • the automation programs may be written in a language such as IEC-61131 FDB, LD, ST or IL and the web services are described using a web service meta-data language such as WSDL.
  • the web service interface fulfills the function of starting the execution of the automation program upon receipt of a trigger message, wherein structured data are used as input parameters for programs.
  • a message is issued using output data of the program.
  • Devices or software applications can subscribe to a copy of the event message (output data).
  • the invention relates to the field of industrial control and describes an interface type for remote calling of an automation program using web services.
  • the automation program may specialize in using traditional techniques such as IEC 61131 languages or other real-time control technologies, such as visual programming languages such as flowcharts includes, but is not limited to.
  • the web service interface provides the function to extract data from an input message, which may have XML format, and start the execution of the automation program, providing input (s) obtained from the message.
  • the invention enables the remote application of software such as supervisory control systems to dynamically detect process capabilities to start such processes in a timely manner and to monitor the operation of the plant through asynchronous event messages.
  • An automation program is used in an automation device together with a service-oriented interface.
  • the automation program is executed in the context of a real-time runtime platform for control purposes.
  • the automation program may be specified by the use of an IEC 61131 language such as FBD, LD, ST or IL and encapsulated as a POU (Potentially Organized Using) SFC.
  • the service-oriented interface share uses the web services stack:
  • the automation program can run once or periodically until a certain state in the plant and / or control logic is reached. If such a state is reached and program execution is completed, the service-oriented interface becomes:
  • Multiple devices or software applications can subscribe to the output messages such as parameter pointers, events, states using a protocol such as WS-Eventing.
  • the output messages are delivered using a transport mechanism such as HTTP or WS-Reliable Messaging, which is selected by the subscriber.
  • Fig. 2 components of a web service
  • Fig. 3 is a schematic representation of a device controlled by automation equipment.
  • FIG. 2 shows the schematic structure of a web service 10, consisting of a real-time operating system 12 as the lowest layer, to which a TCP / UDP / IP stack 14 and an automation runtime system 16 are superimposed.
  • a web services stack 18 In a third layer is a web services stack 18 and the executable automation program 20. This is superordinate to the web service interface 22 via the automation program 20 can be called remotely.
  • the automation program 20 is executed in the context of the real-time operating system 12.
  • the automation program 20 may, for. B. may be specified by the use of an IEC 61131 language such as FBD, LD, ST or IL, or encapsulated as a POU (Positively Organized Using) SFC.
  • the execution of the automation program 20 is controlled by the web service interface 22, which in turn uses the web services stack 18 to send and receive messages.
  • Fig. 3 shows purely schematically an automation device 24 for controlling a chemical process.
  • An automation program with a service-oriented interface that implements the control of a chemical batch process.
  • a system 26 controlled by the automation device 24 is equipped, for example, with actuation valves 28 which control the inflow of unprocessed liquid chemicals.
  • control chemicals actuators for mixing liquids, an electric heater and sensors for measuring volume, temperature, pressure, pH and so on.
  • the automation program consists of IEC-61131 ladder diagrams organized in a flow chart.
  • the program takes the composition of the raw materials, any process parameters and the target properties of the product.
  • the program provides the volume of the final product and its measured properties. Output variables are also used to indicate any error conditions and abnormal method completions.
  • the automation device includes the web service interface 22 for the chemical process.
  • the interface is advertised over the network using the WS Discovery protocol so that higher level control software applications can discover / locate the available process. After detection, other applications subscribe to the output events, such as SCADA applications, diagnostics programs, maintenance software applications and so on.
  • the structured data is used to set the input variables, after which the program is started.
  • the output variables are used to generate an event message and a copy thereof is delivered to each subscriber.
  • the addressed subscribers may be different, depending on whether it is a normal message, that the process has ended, or that it is an error message reporting a warning or error.

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  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Debugging And Monitoring (AREA)

Abstract

L'invention concerne un procédé d'appel d'au moins un programme d'automatisation, réalisé en tant que service Web, d'un appareil d'automatisation ainsi qu'un appareil d'automatisation. L'invention vise à appeler de manière télécommandée des programmes d'automatisation, comme des systèmes de surveillance, de commande/de guidage; à déceler de manière dynamique des procédés possibles; à lancer de tels procédés dans un cohésion temporelle et à surveiller le déroulement d'une installation par des messages d'événements asynchrones. L'invention est caractérisée en ce que des données sont extraites d'un message d'entrée à l'aide d'une interface de service Web et; en ce que le programme d'automatisation est lancé ou appelé avec mise à disposition de données extraites du message, en ce qu'un message d'élément est affiché la fin normale ou anormale de l'exécution du programme d'automatisation à l'aide d'une sortie des données du programme, et en ce que des appareils ou des applications logiciel reliés s'abonnent au message événement par un réseau.
PCT/EP2008/051968 2007-02-19 2008-02-19 Procédé d'appel d'un programme d'automatisation dans un appareil d'automatisation et appareil d'automatisation WO2008101912A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007008461.9 2007-02-19
DE102007008461 2007-02-19

Publications (1)

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WO2008101912A1 true WO2008101912A1 (fr) 2008-08-28

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010136983A1 (fr) 2009-05-26 2010-12-02 Consiglio Nazionale Delle Ricerche Procédé de préparation de dispositif applicable aux tissus biologiques, en particulier un timbre pour traiter des tissus lésés, et dispositif obtenu par ledit procédé
CN103019825A (zh) * 2012-12-24 2013-04-03 北京小米科技有限责任公司 一种控制应用的方法及装置
CN114153716A (zh) * 2022-02-08 2022-03-08 中国电子科技集团公司第五十四研究所 语义信息交换网络下有无人对象实时画像生成方法
CN117389615A (zh) * 2023-12-12 2024-01-12 山东科技大学 一种工业控制板的程序重构方法

Non-Patent Citations (4)

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Title
BOHN H ET AL: "SIRENA - Service Infrastructure for Real-time Embedded Networked Devices: A service oriented framework for different domains", NETWORKING, INTERNATIONAL CONFERENCE ON SYSTEMS AND INTERNATIONAL CONF ERENCE ON MOBILE COMMUNICATIONS AND LEARNING TECHNOLOGIES, 2006. ICN/I CONS/MCL 2006. INTERNATIONAL CONFERENCE ON MORNE, MAURITIUS 23-29 APRIL 2006, PISCATAWAY, NJ, USA,IEEE, 23 April 2006 (2006-04-23), pages 43 - 43, XP010914722, ISBN: 978-0-7695-2552-5 *
FRANÇOIS JAMMES, ANTOINE MENSCH, HARM SMIT: "Service-Oriented Device Communications Using the Devices Profile for Web Services", INTERNET ARTICLE, 2 December 2005 (2005-12-02), MPAC '05, Grenoble, France, pages 1 - 8, XP002479886, Retrieved from the Internet <URL:http://middleware05.objectweb.org/WSProceedings/MPAC05/a16-jammes.pdf> [retrieved on 20080509] *
JAMMES F ET AL: "Orchestration of Service-Oriented Manufacturing Processes", EMERGING TECHNOLOGIES AND FACTORY AUTOMATION, 2005. ETFA 2005. 10TH IE EE CONFERENCE ON CATANIA, ITALY 19-22 SEPT. 2005, PISCATAWAY, NJ, USA,IEEE, vol. 1, 19 September 2005 (2005-09-19), pages 617 - 624, XP010905385, ISBN: 978-0-7803-9401-8 *
JAMMES F ET AL: "Service-Oriented Paradigms in Industrial Automation", IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS, IEEE SERVICE CENTER, NEW YORK, NY, US, vol. 1, no. 1, 1 February 2005 (2005-02-01), pages 62 - 70, XP011128769, ISSN: 1551-3203 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010136983A1 (fr) 2009-05-26 2010-12-02 Consiglio Nazionale Delle Ricerche Procédé de préparation de dispositif applicable aux tissus biologiques, en particulier un timbre pour traiter des tissus lésés, et dispositif obtenu par ledit procédé
CN103019825A (zh) * 2012-12-24 2013-04-03 北京小米科技有限责任公司 一种控制应用的方法及装置
CN114153716A (zh) * 2022-02-08 2022-03-08 中国电子科技集团公司第五十四研究所 语义信息交换网络下有无人对象实时画像生成方法
CN114153716B (zh) * 2022-02-08 2022-05-06 中国电子科技集团公司第五十四研究所 语义信息交换网络下有无人对象实时画像生成方法
CN117389615A (zh) * 2023-12-12 2024-01-12 山东科技大学 一种工业控制板的程序重构方法
CN117389615B (zh) * 2023-12-12 2024-03-01 山东科技大学 一种工业控制板的程序重构方法

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