以太网构建模式下的PLC控制总线研究

以某企业全自动化无人生产线的升级改进为背景,介绍了以Ethernet技术为基础的PLC过程控制生产线系统的设计与实现。本系统利用串口服务器把串口RS-232信号变换成在TCP/IP协议基础上的网络信号,为在Ethernet中接入PLC变成可能。而且,系统还采用了模块化及层次化的设计手段,充分利用Ethernet的优势,完成了网络化的实时数据交互及采集。

Research for Ethernet Build Mode of PLC Control Bus

This paper fully automated unmanned an enterprise to upgrade production lines to improve the background,presented to PLC Ethernet technology-based product line process control system design and implementation.The system uses the serial port server serial port RS-232 signals to transform into the TCP / IP protocol based on the network signal,as in the PLC Ethernet in access become possible.Moreover,the system also uses a modular and hierarchical design method to fully use the advantages of Ethernet to complete the network interactions and real-time data collection.