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7138857 
Journal Article 
A Literature Survey on Open Platform Communications (OPC) Applied to Advanced Industrial Environments 
Gonzalez, I; Jose Calderon, A; Figueiredo, J; Sousa, JMC; , 
2019 
0 
Electronics
ISSN: 0883-4989 
MDPI 
BASEL 
WOS:000470999900041 
Extensive digitization and interconnection through networks have ushered in a number of new paradigms over the last years: Internet of Things, cyber-physical systems, Industry 4.0, etc. These challenging systems rely on an effective information communication between distributed components. Therefore, the heterogeneity of entities, both hardware and software, must be handled to achieve an operative interoperability and a proper behavior. However, there is also a heterogeneous availability of solutions; different technologies, protocols, and architectures aim to achieve a seamless interconnection. Henceforth, the standardization still requires great efforts from industrial and scientific environments. In this sense, the interface of the open platform communications (OPC) has supported connectivity for automation and supervision infrastructures for more than two decades. The OPC comprises the so-called classic OPC, the original protocol, as well as the last specification, unified architecture (UA). The widespread utilization of the classic OPC together with the powerful functionalities of OPC UA, make the latter one of the main candidates to lead the standardization and systems integration. This paper presents a survey of recent OPC-based systems reported in scientific literature for different domains as well as research projects. The goal of this paper is to provide a broad perspective about the OPC' applicability and capabilities in order to support the decision about communication interfaces. The results are analyzed and discussed putting special attention on the aforementioned new paradigms. Finally, the main conclusions and open research directions are highlighted.