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通过对 ISO定义的 OSI模型的各个不同层面的讨论 ,提出具体定义的内容和方法 ,实现自动数据采集处理系统间或自动数据采集系统与上位数据处理机系统间数据交换 ,由于采用模块化、结构化设计思路 ,使这个协议易于实现并具有很好的可扩充性 ,实现了数据传输过程由纵向传输到横向传输的转变 ,便于通讯程序的维护。
Through the discussion of various aspects of the OSI model defined by ISO, the content and method of specific definition are put forward to realize data exchange between automatic data acquisition and processing system or automatic data acquisition system and host data processor system. Because of adopting modularity and structured The design idea makes this protocol easy to implement and has good scalability, which realizes the transformation of data transmission from vertical transmission to horizontal transmission, which is convenient for the maintenance of communication programs.