微机供水监控系统设计_学位论文.doc

摘 要关键词：；PLCAbstract With the development of our national economy, building, water supply for Mr Mootoo system requires more and more is also high. In order to meet the needs of Peoples Daily life, this paper designs a microcomputer monitoring system of water. This control system with Siemens PLC to control center, and in the process of PLC using PID instructions. Its principle is mainly through PLC analog module of the scene of hydraulic pressure signal, and the setting, through the PLC and inverter, adjust the PID frequency, adjust the output speed pump, and the constant pressure water supply to the purpose. In addition, this system is designed for PC monitor, monitor and control interface application software design kingview , through the PC software can effectively will supply site on the condition to control center or a duty. Make work personnel are not deep water scene can intuitionistic knowledge to an even more water scene, the work efficiency of the working personnel will increase. Through many deep water equipment field investigation. Facts prove the design of microcomputer monitoring system can achieve supply of constant pressure water supply, and the technology to improve the more realistic. Keywords: Constant pressure water supply, PLC, configuration , inverter 目 录 前 言 1 1 绪 论 2 1.1 课题背景 2 1.2 课题研究意义 3 1.3 课题分析与研究计划 4 1.4 社会经济效益分析 5 2 微机供水监控系统硬件设计 6 2.1 硬件模型设计 6 2.2 硬件清单 9 2.3 硬件搭接 10 2.4 变频器 11 2.4.1 变频器硬件部分简介 11 2.4.2 变频器参数设定部分 13 3 程序设计 16 3.1 PLC的发展 16 3.2 PLC的特点及应用 17 3.3 程序设计分析及流程图 19 3.4 PID指令 20 3.4.1 PID算法及PLC中的PID简介 20 3.4.2 PID指令 20 3.4.3 PID参数 22 3.4.4 PLC程序构造 23 3.5 PLC程序编辑 24 3.5.1 I/O分配表及地址说明 24 3.5.2 PLC程序分析 25 4 上位机画面设计 35 4.1 组态介绍 35 4.2 监控画面设计 36 5 通信 41 5.1 PLC与PC机通信 41 5.2 PLC与上位机界面的通信 43 6 微机供水监控系统调试 46 6.1 调试分析 46 6.2 调试中的问题及解决方案 46 6.3 调试结果 47 总 结 48 致 谢 49 参考文献 50 附 录 51 前 言 水是人类生命的源泉。人们每天都需要大量的水来保证正常的生活。可想而知，如果一天突然停水，将给人们的生活带来多大的不便。为了人们不会因为水的问题而烦恼，对供水系统的要求就显得尤为严格。 而如今，在这个科技迅猛发展