Configuration of Application Layer Protocols within Realtime I4.0 Components Within the context of Industry 4.0, future production systems are expected to support mass customization up to lot size one. In order to realize the individual production processes, a changeable and consistent integration of assets from different manufacturers is required. Therefore, the concept of I4.0 components was developed. Every I4.0 component provides a socalled asset administration shell, i.e. a standardized virtual representation of its capabilities. This paper focuses on realtime I4.0 components that require a deterministic communication with bounded lowlatency inbetween. In contrast to nonrealtime I4.0 components, Ethernet (IEEE 802.3) is enhanced by the new realtime communication technology TimeSensitive Networking (TSN, IEEE 802.1). The basic configuration of TSN connections within the asset administration shell was already addressed by previous work. In this work, we present the configuration of application layer protocols using the example of OPC UA PublishSubscribe (PubSub). More precisely, we outline the underlying concept and define additional submodels for the asset administration shell of realtime I4.0 components. Finally, we discuss the advantages of the presented approach in terms of changeability.

Utilization of the Asset Administration Shell to Support Humans During the Maintenance Process Maintenance is an important set of various activities related to preserving from failure or decline. Improper or lack of maintenance may result in excessive component wear, production quality deterioration, or even longer downtime. However, todayxe2x80x99s production facilities strive to devote the least amount of necessary maintenance time in order to maximize production time. Therefore, new solutions for deliberate and efficient maintenance are needed. The solution proposed in this paper benefits from the newest trends and innovations in industry, namely the Asset Administration Shell (AAS) which is part of the Industrie 4.0 (I4.0) concept. The AAS shall contain the maintenance submodel which shall be used for supporting humans during the maintenance process. The submodel provides a standardized description of required tools and parts as well as stepbystep instructions which also include safety concerns and multimedia files, such as pictures and videos. In this way, maintenance can be carried out more reliably, resulting in reduced downtime. In addition, feedback from the maintenance process shall be stored in the submodel and fed through an I4.0compliant network to other processes from different phases of the life cycle in order to improve them.