NETWORK ACCESS PROTOCOLS FOR REAL-TIME DISTRIBUTED DIGITAL CONTROL SYSTEMS.

Asok Ray, Yoram Halevi, Suk Lee, Seung Ho Hong

Research output: Contribution to journalConference article

Abstract

A methodology is presented for performance evaluation of media access control (MAC) protocols for real-time distributed digital control system (DDCS) networks in autonomous manufacturing, power and chemical plant, and avionic applications. The selection of an appropriate MAC protocol is critical for the dynamic performance and stability of the controlled process because the DDCS, in addition to the sampling time delay, is subject to the time-varying transport delay, i. e. , data latency due to media access and message transmission in the network. The delay and throughput characteristics of the SAE token ring, SAE linear token bus, and MIL-STD-1553B protocols have been analyzed in view of the DDCS network design requirements. The results of closed-loop control system simulations are presented to demonstrate how data latency incurred in MAC protocols could degrade the dynamic performance and stability of the DDCS.

Original languageEnglish (US)
Pages (from-to)1488-1495
Number of pages8
JournalConference Record - IAS Annual Meeting (IEEE Industry Applications Society)
StatePublished - Dec 1 1986

All Science Journal Classification (ASJC) codes

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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