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本文介绍了一种可用于工业环境下ＰＣ机或ＰＣ兼容机与多个单片机系统进行远距离、多通路通信的智能通信卡。文中给出了通信卡的硬件构成、工作原理和通信过程、通信时序。
This paper introduces a smart communication card that can be used for long-distance and multi-channel communication between PC or PC compatible machines and multiple SCM systems in industrial environments. The paper gives the hardware structure of the communication card, working principle and communication process, communication timing.