论文部分内容阅读
要桥接更长距离和旁路EMC干扰,需采用光纤导体传输(玻璃或塑料),标准总线插头连接器可用于光纤导体传输,该连接器转换RS485讯号为光纤导体讯号,反之亦然,OLP为光链路插头,此外亦可应用中继器。一个PROFIBUS系统可连接126个站,总线系统分为若干个段,段与段之间用中继器连接,作为被动的总线站,中继器的作用通常是保证能明确的识别要与以下连接的站所交换的数据。
To bridge longer distances and bypass EMC interference, fiber optic conductors (glass or plastic) are required for transmission. The standard bus plug connector can be used for fiber-optic conductor transmission, which converts the RS485 signal into a fiber-optic conductor signal and vice versa Optical link plug, in addition to the repeater. A PROFIBUS system can be connected to 126 stations, the bus system is divided into several segments, segments and segments connected by a repeater, as a passive bus station, the role of the relay is usually guaranteed to be able to clearly identify the following connections Of the station to exchange data.