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Implementation of Networked Control System using a Profibus-DP Network  

Lee, Kyung-Chang (School of Mechanical Engineering, Pusan National University)
Lee, Suk (School of Mechanical Engineering and Research Institute of Mechanical Technology, Pusan National University)
Publication Information
International Journal of Precision Engineering and Manufacturing / v.3, no.3, 2002 , pp. 12-20 More about this Journal
Abstract
As numerous sensors and actuators are used in many automated systems, various industrial networks are adopted for real-time distributed control. In order to take advantages of the networking, however, the network implementation should be carefully designed to satisfy real-time requirements considering network induced delays. This paper presents an implementation scheme of a networked control system via Profibus-DP network fur real-time distributed control. More specifically, the effect of the network induced delay on the control performance is evaluated on a Profibus-DP testbed. Also, two conventional PID gain tuning methods are slightly modified fur fouling controllers fur the networked control system. With appropriate choices for gains, it is shown that the networked control system can perform almost as well as the traditional control system.
Keywords
Networked control system; Profibus-DP; Fieldbus; Network induced delay; Industrial network;
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Times Cited By KSCI : 1  (Citation Analysis)
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