Design and simulation of a data transmission network for industrial control system subject to reliability improvement

This paper presents the design and simulation of a reliable data communication network. Real time data communication network with high load File Transfer Protocol (FTP), database access, E-mail and Voice over IP (VoIP) with PCM quality application are simulated subject to reliability study. OPNET Modeler 14.5 is used as network simulator. Many models are considered in the simulation and tested against many cases (high load, utilization factor of links, network topological change). The simulation results are analyzed and discussed based on the case study of building an Intranet for the North Oil Refineries of Baiji (NORB) in Iraq. This paper deals with performance evaluation of industrial plant Intranet used to interconnect several Distributed Control Systems (DCS) and the evaluation of real-time parameters describing the behavior of the network.