【正文】 WinCC PID 北京化工大學(xué)繼續(xù)教育學(xué)院畢業(yè)設(shè)計(jì)（論文） III Abstract With the programmable logical controller（ PLC） increasingly improve and strengthen the control and munication functions, in order to reduce costs, save development time, while at the same time meet the control requirements, many enterprises often use PLC to achieve the subordinate control , with upper monitoring software WinCC to achieve the upper control management while establish the control system. In such a context , the article pleted the design of the bottling production line control system based on PLC , which focus on the study of the flow closedloop control , realized a certain proportion of mixture of the feed flow . In the bottling production line , the synthesis and mixture of several materials is a very mon process, automatic control device for perfect is an important means to improve the production efficiency and economic benefits . The flow closedloop control of filling production line system consists of a flow testing sensor , electric control valve , variable speed pump , frequency converter , PLC and monitoring devices and other ponents . Using the Siemens S7300PLC to achieve closedloop control , with the WinCC software to plete monitoring in the PC machine , and through PID operation control the opening degree of the electric control valve to achieve closedloop control of the flow . Key Words: PLC Flow control Bottling production line WinCC PID 北京化工大學(xué)繼續(xù)教育學(xué)院畢業(yè)設(shè)計(jì)（論文） IV 目 錄 引 言 ...................................................................................................................................... 6 第 1 章 灌裝生產(chǎn)線流量閉環(huán)控制系統(tǒng)概述 ............................................................ 7 第 節(jié) 系統(tǒng)控制任務(wù)與設(shè)計(jì)要求 ................................................................................. 7 第 節(jié) 系統(tǒng)控制分析 ..................................................................................................... 8 控制工藝 .................................................................................................................. 8 信號(hào)分析 ................................................................................................................ 10 第 2 章 總體方案設(shè)計(jì) .................................................................................................. 13 第 節(jié) 項(xiàng)目中各個(gè)組成部分的作用 ........................................................................... 13 第 節(jié) 整體方案設(shè)計(jì)思路 ........................................................................................... 13 控制對(duì)象要求 ........................................................................................................ 13 控制面板和電器布置設(shè)計(jì) .................................................................................... 14 方案設(shè)計(jì) ................................................................................................................ 15 第 3 章 灌裝生產(chǎn)線流量閉環(huán)控制系統(tǒng)硬件設(shè)計(jì) ............................................... 18 第 節(jié) 硬件選型 ........................................................................................................... 18 第 節(jié) 硬件組態(tài) ........................................................................................................... 19 第 節(jié) I/O 分配 ............................................................................................................. 22 第 節(jié) 電氣原理圖 ....................................................................................................... 25 第 節(jié) PLC 模塊接線圖 ............................................................................................... 26 第 4 章 灌裝生產(chǎn)線流量閉環(huán)控制系統(tǒng)軟件設(shè)計(jì) ............................................... 29 第 節(jié) 程序設(shè)計(jì)思路 ................................................................................................... 29 第 節(jié) 程序結(jié)構(gòu)圖和主程序流程圖 ........................................................................... 29 程序結(jié)構(gòu)圖 ............................................................................................................ 29 主程序流程圖 ........................................................................................................ 30 第 節(jié) 軟件調(diào)試遇到的問題與解決方法 ................................................................... 32 第 5 章 上位監(jiān)控系統(tǒng)設(shè)計(jì) ......................................................................................... 33 第 節(jié) 上位監(jiān)控系統(tǒng)組態(tài)軟件 WinCC 簡(jiǎn)介 ............................................................. 33 第 節(jié) 上位監(jiān)控系統(tǒng)結(jié)構(gòu)設(shè)計(jì) ................................................................................... 33 第 節(jié) 建立 WinCC 與 PLC 的通信連接 .................................................................... 34 添加驅(qū)動(dòng)程序 ........................................................................................................ 34 系統(tǒng)參數(shù)設(shè)置 ........................................................................................................ 35 第 節(jié) 建立變量 ........................................................................................................... 35 第 節(jié) WinCC 過程畫面設(shè)計(jì) ...................................................................................... 37 北京化工大學(xué)繼續(xù)教育學(xué)院畢業(yè)設(shè)計(jì)（論文） V 初始畫面 ................................................................................................................ 37 系統(tǒng)運(yùn)行畫面 ........................................................................................................ 38 流量參數(shù)設(shè)置畫面 ................................................................................................ 39 流量趨勢(shì)圖畫面 .................................................................................................... 39 報(bào)警畫面 ................................................................................................................ 39 用戶管理 ............................................................................................................