【正文】 d monality, Simple and convenient operating, and easy to imp lement centralized monitoring and management of PLC. It has a wider application prospects. Keywords: the point by point parison method, line interpolation, circular interpolation, Configuration Monitoring 沈陽(yáng)航空航天大學(xué)北方科技學(xué)院畢業(yè)設(shè)計(jì) (論文 ) III 目 錄 1 緒論 .................................................................................................................................... 1 課題背景 ..................................................................................................................... 1 研究意義 ..................................................................................................................... 1 數(shù)控 .................................................................................................................... 2 機(jī)床數(shù)控與數(shù)控機(jī)床 ......................................................................................... 3 課題研究任務(wù)及要求 ................................................................................................ 3 課題研究?jī)?nèi)容 .................................................................................................... 4 技術(shù)指標(biāo) ............................................................................................................ 4 課題的內(nèi)容安排 .......................................................................................................... 4 2 PLC 可編程控制器 ............................................................................................................. 5 PLC 可編程控制器的描述 ......................................................................................... 5 PLC 發(fā)展歷程 ..................................................................................................... 5 PLC 構(gòu)成 ............................................................................................................. 6 CPU 構(gòu)成 ............................................................................................................. 6 I/O 模塊 ............................................................................................................. 6 電源模塊 ............................................................................................................ 7 底板或機(jī)架 ........................................................................................................ 7 PLC 系統(tǒng)其它設(shè)備 ............................................................................................. 7 PLC 通信聯(lián)網(wǎng) ..................................................................................................... 8 PLC 的優(yōu)點(diǎn) ......................................................................................................... 8 PLC 特點(diǎn) ........................................................................................................... 9 PLC 應(yīng)用 ......................................................................................................... 10 西門(mén)子 S7200 .......................................................................................................... 11 簡(jiǎn)介 .................................................................................................................. 11 出色表現(xiàn) .......................................................................................................... 11 適用范圍 .......................................................................................................... 11 詳細(xì)介紹 .......................................................................................................... 12 沈陽(yáng)航空航天大學(xué)北方科技學(xué)院畢業(yè)設(shè)計(jì) (論文 ) IV 3 逐點(diǎn)比較法插補(bǔ)原理 ...................................................................................................... 14 逐點(diǎn)比較法 ............................................................................................................... 14 第一象限直線(xiàn)插補(bǔ)原理 .......................................................................................... 15 偏差計(jì)算公式 .................................................................................................. 15 終點(diǎn)判別法 ...................................................................................................... 16 插補(bǔ)計(jì)算過(guò)程 .................................................................................................. 16 不同象限的直線(xiàn)插補(bǔ) ...................................................................................... 17 第一象限逆時(shí)針圓弧插補(bǔ) ....................................................................................... 17 偏差計(jì)算公式 .................................................................................................. 17 終點(diǎn)判別法 ...................................................................................................... 18 插補(bǔ)計(jì)算過(guò)程 .................................................................................................. 18 四個(gè)象限的圓弧插補(bǔ)公式 .............................................................................. 18 4 逐點(diǎn)比較法插補(bǔ)系統(tǒng)的程序設(shè)計(jì) .................................................................................. 20 基于 PLC 的直線(xiàn)插補(bǔ)軟件設(shè)計(jì) ............................................................................. 20 直線(xiàn)插補(bǔ)程序 I/O 分配表 .............................................................................. 20 第一象限內(nèi)的直線(xiàn)插補(bǔ)流程圖 ...................................................................... 21 直線(xiàn)插補(bǔ)主要程序的設(shè)計(jì)及分析 .................................................................. 22 圓弧插補(bǔ) PLC 軟件 設(shè)計(jì) ......................................................................................... 26 圓弧插補(bǔ)程序 I/O 分配表 .............................................................................. 26 第一象限內(nèi)逆時(shí)針圓弧插補(bǔ)流程圖 .............................................................. 27 圓弧插補(bǔ)主 要程序的設(shè)計(jì)及分析 .................................................................. 28 程序調(diào)試 .................................................................................................................... 33 PC 與 PLC 的通訊 ..................