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WSFiS

Web Services for Fieldbus Systems

Contact Prof. Dr. rer. nat. Volker Turau
Staff Dr. Marcus Venzke
Christoph Weyer
Start 1. June 2003
End 31. December 2008

Project Description

The project WSFiS has targeted on using Web Services for the vertical integration of fieldbus systems. Fieldbus systems are industrial plant floor systems consisting of a bus connected processing nodes. Their vertical integration satisfies the growing interest in using information rooted in automation systems at the level of operational management to enhance production and its control (e.g. for supply chain management, enterprise resource planning and manufacturing execution systems). Web Services are an appropriate technology for that purpose allowing interoperability and high-level abstractions using Web technology.

In the project generic techniques have been developed that enable exposing data and control of fieldbus systems using Web Services. Interfaces have been defined considering the internet's high latency and providing high level abstractions. The abstractions close to the developer's view are based on metadata describing each fieldbus system.

Publications

Marcus Venzke, Christoph Weyer and Volker Turau. Application Specific vs. Standard Web Service Interfaces for the Vertical Integration of Fieldbus Systems. In Proceedings of the Third Workshop on Intelligent Solutions in Embedded Systems (WISES'05), May 2005, pp. 153–162. Hamburg, Germany.
@InProceedings{Telematik_VWT_2005_WebService, author = {Marcus Venzke and Christoph Weyer and Volker Turau}, title = {Application Specific vs. Standard Web Service Interfaces for the Vertical Integration of Fieldbus Systems}, booktitle = {Proceedings of the Third Workshop on Intelligent Solutions in Embedded Systems (WISES'05)}, pages = {153-162}, day = {20}, month = may, year = 2005, location = {Hamburg, Germany}, }
Abstract: The paper compares two approaches for developing Web service interfaces for the vertical integration of TTP/A fieldbus systems. High-level abstractions are provided by application specific interfaces, generated from metadata describing fieldbus systems. In contrast standardised interfaces such as OPC XML DA only allow lower levels of abstractions. But these enable accessing the fieldbus system from a broad range of standard clients, while high-level abstractions reflecting the application programmer's view on the system facilitate the development of more specific clients and workflows.
Volker Turau, Marcus Venzke, Christoph Weyer and Yesenia Vigil. Vertical Integration of TTP/A Fielbus Systems Using Web Services. In Proceedings of the First International Conference on Informatics in Control, Automation and Robotics (ICINCO'04), August 2004, pp. 390–393. Setubal, Portugal.
@InProceedings{Telematik_TVW_2004_VerticalIntegration, author = {Volker Turau and Marcus Venzke and Christoph Weyer and Yesenia Vigil}, title = {Vertical Integration of TTP/A Fielbus Systems Using Web Services}, booktitle = {Proceedings of the First International Conference on Informatics in Control, Automation and Robotics (ICINCO'04)}, pages = {390-393}, month = aug, year = 2004, location = {Setubal, Portugal}, }
Abstract: This paper presents a generic technique to expose data and control of fieldbus systems to applications located at the level of operational management. To provide a high degree of interoperability between the operational level and different fieldbus systems we utilize standardized techniques such as XML, HTTP, and Web services which can be deployed independently of the platform. The proposed service is based on the interface file system for TTP/A smart transducers. The defined interface provides high level abstractions appropriate for the integration into business applications and considers the latency introduced by the internet protocols.
Volker Turau, Marcus Venzke and Christoph Weyer. A Web Service for TTP/A Fieldbus Systems based on Meta-Data. In Proceedings of the Second Workshop on Intelligent Solutions in Embedded Systems (WISES'04), June 2004, pp. 159–168. Graz, Austria.
@InProceedings{Telematik_TVW_2004_MetaData, author = {Volker Turau and Marcus Venzke and Christoph Weyer}, title = {A Web Service for TTP/A Fieldbus Systems based on Meta-Data}, booktitle = {Proceedings of the Second Workshop on Intelligent Solutions in Embedded Systems (WISES'04)}, pages = {159-168}, month = jun, year = 2004, location = {Graz, Austria}, }
Abstract: This paper is concerned with the vertical integration of fieldbus systems. It presents a generic technique to expose data and control of fieldbus systems in a semantically rich way to applications located at the level of operational management. To provide a high degree of interoperability between the operational level and different fieldbus systems we utilize standardized techniques such as XML, HTTP, and Web services which can be deployed independently of the platform. The proposed service is based on the interface file system for TTP/A smart transducers. The defined interface provides high level abstractions appropriate for the integration into business applications and considers the latency introduced by the internet protocols. The operations of the service are automatically generated from meta-data descriptions of the smart transducers and their combination into larger clusters.
Marcus Venzke and Stefan Pitzek. Accessing Fieldbus Systems via Web Services. In Proceedings of the First Workshop on Intelligent Solutions in Embedded Systems (WISES'03), June 2003. Vienna, Austria.
@InProceedings{Telematik_VP_2003_WebServices, author = {Marcus Venzke and Stefan Pitzek}, title = {Accessing Fieldbus Systems via Web Services}, booktitle = {Proceedings of the First Workshop on Intelligent Solutions in Embedded Systems (WISES'03)}, day = {27}, month = jun, year = 2003, location = {Vienna, Austria}, }