A Thorough Analysis and Comparison of Data Communication Protocols Used in Industry 4.0: the Case of Smart-CNC

Abstract

Several key methods have been developed to transfer data accurately and completely. In this regard, a communication protocol specifies the rules for transmitting blocks of data between network nodes. This study examines in detail the scope of the Qu4lity project, the data communication protocols used by the pilots, the protocols used by TEKNOPAR, and the benefits, drawbacks, and application areas of different data communication protocols. Protocols were analysed against a number of technical criteria aimed at identifying the most appropriate procedure. Communication protocols were categorized considering the following features: technical qualifications such as transport protocol, coding format, message system, architecture, security, and scalability.