임베디드 보드와 오픈 소스 소프트웨어를 이용한 산업용 장비의 OPC-UA 통신

Abstract

Recently, various software and hardware technologies are converging through the 4th industrial revolution and the distribution and spread of smart factories that can be intellectualized and optimize the entire production process for the innovation of the manufacturing industry are being made widely. In addition, the need for standard communication among equipments for the convergence of SW technology and hardware device in the manufacturing process is increasing and according to this trend, various communication systems and application technologies are being studying. Specially, communication operating system based on OPC-UA(Open Platform Communication Unified Architecture) is in the spotlight. On this study, OPC-UA communication platform applied to open source software based on Raspberry-pi embedded board is developed and tested the performance evaluation in real industrial systems to enable the data exchange mutually in the various industrial devices and software environment used in industrial field smart manufacturing environment. This study consists of five chapters and the summary of each chapter is as follows. On the first chapter, it explains the problems with the configuration of the communication protocol for each manufacturer and the controllers provided by manufacturers in the industrial field, and the necessity of industrial protocol integration. Furthermore, the definition and configuration of OPC communication is also explained. On the second chapter, it explains the configuration of OPC software that has been commercialized and sold and it contains the outline of the Open62541 OPA-UA library. On the third chapter, it explains the configuration of the OPC-UA test bed developed with the embedded board and open source software. In addition, 4 types of test items are selected and then tested and verified the developed OPC-UA server and 6 types of PLC for each manufacturer.