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本文简单介绍了采用APPLEⅡ与FY—Ⅰ工业测控微机构成的两级微机过程实时控制系统。着重叙述了上位机APPLE—Ⅱ与下位机FY—Ⅰ之间的并行接口实时通讯问题。该系统具有低成本、功能强、高可靠性、维护方便、通用性强等特点。此外,还阐述了该方法在Z80 CPU微机类在线软件开发中的应用。
This paper briefly introduces the APPLE Ⅱ and FY-Ⅰ industrial measurement and control computer consisting of two-stage microcomputer process real-time control system. Emphatically narrates the real-time communication problem of the parallel interface between the host computer APPLE-Ⅱ and the lower computer FY-Ⅰ. The system has the characteristics of low cost, strong function, high reliability, easy maintenance and versatility. In addition, it also illustrates the application of this method in online software development of Z80 CPU.