A RESTful extension of OPC UA

Author

Gruner, Sten ; Pfrommer, Julius ; Palm, Florian

Author_Institution

Dept. of Process Control Eng., RWTH Aachen Univ., Aachen, Germany

fYear

2015

fDate

27-29 May 2015

Firstpage

1

Lastpage

4

Abstract

RESTful interfaces are a wide-spread architecture style for webservice implementations and are built upon the resource-oriented approach to decentralized architectures (ROA). REST postulates a set of requirements that are not covered by the OPC Unified Architecture (OPC UA) communication protocol per se. We propose a set of simple extensions to the OPC UA binary protocol that enable RESTful communication. The evaluation shows an order of magnitude improvement in the use of communication resources for sporadic service requests. Additionally, RESTful OPC UA allows applications to profit from the advantages of the resource-oriented architecture style, such as caching and loose application coupling.

Keywords

Web services; manufacturing data processing; open systems; process control; software architecture; transport protocols; OLE for process control; OPC UA RESTFful extension; OPC unified architecture communication binary protocol; ROA; Web service implementation; decentralized architecture; representational state transfer; resource-oriented approach; sporadic service request; Industries; Internet; Object oriented modeling; Process control; Protocols; Servers; Standards;

fLanguage

English

Publisher

ieee

Conference_Titel

Factory Communication Systems (WFCS), 2015 IEEE World Conference on

Conference_Location

Palma de Mallorca

Type

conf

DOI

10.1109/WFCS.2015.7160557

Filename

7160557