Title :
A Prototype Embedded XML-DA Server and its Evaluations
Author :
Usami, Katsuji ; Sunaga, Shin-ichi ; Wada, Hidehiko
Author_Institution :
Yokogawa Electr. Corp., Tokyo
Abstract :
In current control systems, it is important to get information from field devices just when the information is needed for applications such as maintenance, asset management or diagnosis. However, getting information for those applications is not always easy. Many control systems do not provide enough information for those purposes, because they are designed for its own purpose: to control the plant. Since the devices themselves possess the necessary information, it is desirable for such applications to have direct access via open and standard interfaces. It is shown that an OPC XML-DA (XML data access) server embedded in the device is a possible candidate for this objective. We have developed a prototype server on a small embedded controller. In this paper, we evaluate the experimental system consisting of the embedded OPC XML-DA server and data acquisition application, and discuss where performance bottlenecks are and how the performance can be improved of the server. Finally, we discuss the performance evaluations on the improved server and the architecture which makes effective use of the server
Keywords :
Web services; XML; control engineering computing; data acquisition; embedded systems; information retrieval; control systems; data acquisition; embedded XML-data access server; embedded controller; open interface; standard interface; Asset management; Control systems; Data acquisition; Distributed control; Electric current control; Enterprise resource planning; Programmable control; Prototypes; Web services; XML; OPC; SOAP; Web services; XML-DA; embedded systems;
Conference_Titel :
SICE-ICASE, 2006. International Joint Conference
Conference_Location :
Busan
Print_ISBN :
89-950038-4-7
Electronic_ISBN :
89-950038-5-5
DOI :
10.1109/SICE.2006.315060