Developing a skill-based flexible transport system using OPC UA

Abstract

Cyber-Physical Production Modules (CPPMs) must be described by vendor-independent and machine-readable standardized information models. Standards make CPPMs adaptable and interchangeable at different company levels to enable flexible production. We present an OPC UA information model for CPPMs based on the relevant OPC UA Companion Specifications. Combined with the skill concept, a transport system is controlled in an order-driven production. Additionally, we link different state machines to facilitate utilization functions for mission distribution between transport units.