Passive PROFIET I/O OPC DA Server

This paper describes a PROFINET I/O passive OPC server that was realized as a student´s project built at the Institute of Informatics, Silesian University of Technology in cooperation with the company Softing A.G. The authors describe the project idea and present the practical results of the experiment. The results prove the thesis that the proposed solution for data exchange between horizontal and vertical industrial communication systems can give better data resolution and lower system overheads. The presented idea may be the basis for future works on vertical communication for industrial real-time systems.