【正文】 LC. Automation in the field of PLC technology is widely used in industry, measure and control system of the design adopts Siemens PLC S7200 CPU226 mount EM231 analog expansion module and EM222 digital quantity expansion module and LED display, sensor, control panel solar boiler, control and monitoring system for solar energy boiler to provide safe and reliable guarantee. This article has two important parts: The first part: the hardware design of solar energy boiler control system。Measurement and control instrument 目錄 III 摘要 ............................................................................................................................................. I Abstract ...................................................................................................................................... II 第一章 引言 .............................................................................................................................. 1 研究背景： .................................................................................................................. 1 課題的目的及意義 ...................................................................................................... 1 國(guó)內(nèi)外發(fā)展現(xiàn)狀及前景 .............................................................................................. 2 我國(guó)太陽(yáng)能鍋爐發(fā)展現(xiàn)狀與前景 .................................................................... 2 國(guó)外太陽(yáng)能鍋爐發(fā)展現(xiàn)狀幾前景 .................................................................... 3 本章小結(jié) ...................................................................................................................... 4 第二章 太陽(yáng)能鍋爐的綜述 ...................................................................................................... 5 太陽(yáng)能鍋爐的介紹 ...................................................................................................... 5 太陽(yáng)能鍋爐的構(gòu)造組成 .............................................................................................. 6 太陽(yáng)能鍋爐適用范圍 .................................................................................................. 7 太陽(yáng)能鍋爐供熱水的方案與選擇 .............................................................................. 8 幾種典型的太陽(yáng)能熱水系統(tǒng)性能對(duì)比 ............................................................ 8 系統(tǒng)運(yùn)行方式的選擇 ........................................................................................ 9 防凍系統(tǒng)的比較與選擇 ...................................................................................11 太陽(yáng)能鍋爐系統(tǒng)工作原理 ........................................................................................ 12 熱管 真空管 ...................................................................................................... 12 太陽(yáng)能鍋爐系統(tǒng)的總體設(shè)計(jì) .......................................................................... 13 系統(tǒng)要求 .................................................................................................................... 15 本章小結(jié) .................................................................................................................... 17 第三章 太陽(yáng)能鍋爐測(cè)控系統(tǒng)硬件設(shè)計(jì) ................................................................................ 18 可編程控制器 PLC 的選擇 ....................................................................................... 18 PLC 的介紹及應(yīng)用領(lǐng)域 ................................................................................... 18 可編程控制器應(yīng)用領(lǐng)域 .................................................................................. 21 西門子 S7200 介紹 ......................................................................................... 23 EM231 模擬量輸入模塊 ............................................................................... 25 EM 222 數(shù)字量輸出模塊 ................................................................................ 26 74LS48 譯碼驅(qū)動(dòng) ............................................................................................. 26 LED 七段數(shù)碼顯示管 ................................................................................................ 26 傳感器的選擇 ............................................................................................................ 28 測(cè)控系統(tǒng)的硬件設(shè)計(jì) ................................................................................................ 30 PLC 接線 ........................................................................................................... 30 測(cè)控儀控制面板示意圖 .................................................................................. 34 IV 本章小結(jié) .................................................................................................................... 35 第四章 太陽(yáng)能鍋爐測(cè)控系統(tǒng)軟件設(shè)計(jì) ................................................................................ 37 主程序設(shè)計(jì) ................................................................................................................ 37 主程序工作過(guò)程 .............................................................................................. 37 主程序流程圖 .................................................................................................. 38 手動(dòng)控制程序流程圖 ................................................................................................ 39 控制程序子程序流程圖 ............................................................................................ 40 水位控制上水子程序流程圖 .......................................................................... 40 溫差循環(huán)子程序流程圖 .................................................................................. 41 鍋爐輔助加熱子程序流程圖 .......................................................................... 42 低溫防凍子程序流程圖 .................................................................................. 43 報(bào)警子程序流程圖 .......................................................................................... 44 系統(tǒng)的模擬量?jī)?nèi)存地址分配和 I / O 口地址分配 .................................................. 45 本章小結(jié) ....................................