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一前言众所周知,由可编程序控制器(PC)组建的计算机工业实时控制系统的可靠性极高,能适应各种恶劣工况,这主要由PC自身的可靠性所保
Preface As we all know, computer programmable logic controller (PC) formed by the industrial real-time control system for high reliability, able to adapt to a variety of harsh conditions, mainly by the reliability of the PC itself