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本文介绍了一个基于以太网技术和RS-485协议的网络化数据采集系统,远程监控中心和上位机通过以太网使用TCP/IP协议进行通信,上位机和数量众多的下位机数据采集系统之间则使用RS-485串行总线和串口协议进行通信,系统的特点是传输距离远、组态灵活方便,可靠性和实时性都比较高,该实现方案可应用于冶金、化工、煤矿等大型工矿企业的生产过程的远程数据采集。
This paper introduces a networked data acquisition system based on Ethernet technology and RS-485 protocol. The remote monitoring center and the host computer communicate via TCP / IP via Ethernet. Between the host computer and a large number of lower computer data acquisition systems Then the use of RS-485 serial bus and serial protocol for communication, the system is characterized by transmission distance, configuration flexibility, reliability and real-time are relatively high, the program can be applied to the metallurgical, chemical, coal and other large industrial and mining Long-distance data acquisition of the production process of an enterprise.