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针对注塑成型行业发展趋势,采用PLC加PC机的监控站模式,以PLC为1类主站,PC机为2类主站,现场设备及从站接口电路一起构成智能从站,应用PROFIBUS现场总线把PC机与现场注塑机连接起来,构建注塑机网络控制系统。采用单片机加协议芯片方式开发PROFIBUS-DP从站接口电路,使注塑机能够连入整个PROFIBUS总线网络,实现生产管理与过程控制的信息化。
For the injection molding industry trends, the use of PLC and PC monitoring station mode to PLC as a master station, PC machine for the two types of master stations, field devices and slave interface circuit constitute an intelligent slave station, the application of PROFIBUS field bus The PC and the scene injection molding machine connected to build injection molding machine network control system. The development of a PROFIBUS-DP slave interface circuit by means of a single-chip plus protocol chip enables the injection molding machine to be connected to the entire PROFIBUS bus network for informationalization of production management and process control.