Template-based modeling methodology of a virtual plant for virtual commissioning

Abstract

This article presents a template-based modeling methodology for the effective construction of a virtual plant that can be used for the virtual commissioning of a programmable logic controller. For virtual commissioning, the corresponding virtual plant, consisting of virtual devices, is required to interact with the input and output symbols of a programmable logic controller. In other words, the behavior of a virtual device should be the same as that of the real device. Conventionally, discrete event systems specifications formalism has been used to represent the behavior of a virtual device. However, modeling using discrete event systems specifications formalism requires in-depth knowledge of simulation as well as significant amounts of time and effort. One of the key ideas of the proposed methodology is to provide a device template model representing the relations between the tasks of a device. The proposed template is very intuitive and can be used to generate a comprehensive behavior model of a virtual device. The proposed approach has been implemented and demonstrated for a robotic cell.

Virtual Commissioning of a Robotic Cell Prior to its Implementation Into a Real Flexible Production System.

“…It only depends on the assembly and completion of a technical work with certain deviations and inaccuracies. Virtual commissioning provides a standardized approach and is based on established and proven methodologies (18,19,20,21,22), tested in the past (23,24).…”

Configuration space–based discrete event system specification formalism for a smart factory with real-time flexibility

“…At this time, it is necessary to consider the efficiency of material flows as well as potential traffic congestions. The design procedure of a manufacturing system is a repetitive decision-making process and should be done by experienced domain experts (Ham et al, 2017;Ko and Park, 2014;Park et al, 2008Park et al, , 2013Xu et al, 2000).…”

Reservation-based dispatching rule for make-to-order wafer FAB with high-priority lots

“…As the product life cycle is reduced in the continuously changing semiconductor industry, integrated device manufacturing (IDM) companies are facing increasing challenges to handle all demands of the supply chain (Duhovnik et al, 2000; Ko and Park, 2014; Tay and Ho, 2008; Yongxian et al, 2008). To respond to these demands, many IDM plants are switching their capacity to join the foundry business (Chang et al, 2003).…”