Experiment of Networked Control System (NCS) using network emulator
Indra Sakti, Dicky Rianto Prajitno · 2016
Networked Control System (NCS) is a control system that adds communication network on its loop. As known there are several parameter on communication network that could make control design become more complex, some of these parameter are : packet delay, packet dropout, bandwidth limit, etc. In lab experiment there is needed to build a network emulator that can emulate the real communication network and manipulate packet data transmission for control system response analysis. In this paper we use a built-in Linux kernel 2.6 NetEm to build a network emulator for our NCS. In this experiment we will analyze the behavior of the NCS due to packets dropout occurs on a communication network. A dc-motor equipped with motor drive was used as a plant. NCS built as a client-server, which a set-point will be provided from the client through a network emulator to the server plan. Motor speed output then were compared to the set-point.