TCP/IP 를 이용한 다중 PC 의 고장 허용 제어기 설계

Abstract

Redundant Programmable Logic Controllers are used in practice with the aim of achieving higher degree of availability or fault tolerance. In the paper, a proposed Multiplex-PC is controled for fault tolerance design. In order to select a Different-Vender by a Supervisor computer, a Multiplex-PC is designed by TCP/IP internet protocoUl]. Because TCP/IP internet protocol can not connect to CPU, We use TCP/IP internet protocol to join CPU. We have to use TCP congestion control to select Different-Vender⑷ . The reliability of the fault tolerant is measured with MTBF(Mean Time Between Failures) [3].