【摘要】 本文采用下位机硬件控制和上位机软件监视架构。在下位机控制系统中,通过PLC(可编程逻辑控制器)来采集与处理现场数字量信号、模拟量信号以及脉冲信号,采用RS485协议与液位仪二次表通信读取数据,实现对泵和电动阀的自动控制。在上位机监视系统中,采用Ifix组态软件开发人机界面,生产实时状况直观形象。更多还原

【Abstract】 This thesis is consisting of inferior hardware system for control and superior software system for supervisory.In the inferior hardware system,it is used PLC(Programmable Logical Controller) to collect and manage the numeral signals,analog signals,pulse signals and to communicate with the level indicator based on RS485 and also to control the pumps and valves.In the superior soft-ware system,it is developed the program by Ifix to support the guests to find out the real-time running situation of the field in time.更多还原