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ＦＦ总线是一个数字通信系统和控制网络 ,既有网络通信的基本特点 ,又有其特殊性。在网络通信中 ,由于物理信道的噪音干扰、接收和发送处理速度不匹配、缓冲区数目有限等多种因素的影响 ,可能引起数据在传输过程中的损坏或丢失。因此 ,为保证网络通信中数据传输的可靠性 ,必须
FF bus is a digital communication system and control network, both the basic characteristics of network communications, but also its particularity. In network communication, due to the influence of many factors, such as noise of physical channel, mismatch of receiving and sending speed, limited number of buffers, etc., data may be damaged or lost during transmission. Therefore, in order to ensure the reliability of data transmission in network communication, it is necessary