Abstract
Small and medium-sized companies increasingly turning their attention towards the fourth industrial revolution. In order to increase their own long-term competitiveness, there is a growing desire to make production smarter, more efficient, safer and more sustainable through new technologies. Often, however, existing plants cannot be easily replaced by modern equipment. The reasons for this can be high investment costs, excessive downtimes or the unavailability of an equivalent machine. An alternative solution to the purchase of new equipment is the modernisation or expansion of existing systems, also called retrofitting. Thus, this paper deals with the retrofit process of a machine tool, whereby the software architecture of the control unit is the primary concern of this work.
Highlights
Since the introduction of the fourth industrial revolution, the shape of the industry is changing and individual customer requirements become the focus of attention more than ever before
Industry 4.0 (I4.0) enables more individual, flexible, efficient and sustainable production through the intelligent networking of machines and processes with the help of information and communication technologies [1]. Another concept that has recently come to the fore, are systems in which virtual and physical processes merge and interact, known as Cyber-Physical Systems (CPS) [2]
Implementing conventional machine tools into a CPS environment is not a trivial task, as these systems often do not provide adequate sensors or communication standards and mostly rely on proprietary system architectures, which inhibits the interconnection with other devices
Summary
Since the introduction of the fourth industrial revolution, the shape of the industry is changing and individual customer requirements become the focus of attention more than ever before. Industry 4.0 (I4.0) enables more individual, flexible, efficient and sustainable production through the intelligent networking of machines and processes with the help of information and communication technologies [1]. For the reasons mentioned above, this paper describes both the hardware retrofitting process and the PLC software architecture. In a case study, retrofitting is applied to a machine tool.
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