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本書基於三菱FX系列PLC，以項目教學的方式，循序漸進地講解電氣控制與PLC應用技術的基本原理和具體應用的方法與技巧。全書分為7個項目，具體內容為：三相異步電動機電氣控制電路的安裝與調試、初識PLC、PLC基本指令的編程及應用、PLC步進指令的編程及應用、PLC功能指令的編程及應用、觸摸屏及變頻器的控制及應用和PLC通信控制及應用。本書實例豐富、內容翔實、操作方法簡單易學，不僅適合作為職業院校控制工程相關專業教材，也可供從事單片機應用相關工作的專業人士參考。本書附有電子資料，內容為書中所有實例的源文件及相關資源，以及實例操作過程錄屏動畫，供讀者學習中使用。
目錄大綱
目 錄
緒論 用電安全與急救常識 ································································································1
項目一 三相異步電動機電氣控制電路的安裝與調試··························································4
任務一 三相異步電動機連續控制電路的安裝與調試 ······························································5
任務二 三相異步電動機正反轉控制電路的安裝與調試 ························································.20
任務三 三相異步電動機 Y-△降壓啟動控制電路的安裝與調試···············································.29
任務四 三相異步電動機制動控制電路的安裝與調試 ···························································.37
項目二 初識 PLC···········································································································.48
任務一 PLC 基礎認知··································································································.49
任務二 PLC 的編程語言·······························································································.65
任務三 GX Works2 的使用 ···························································································.69
項目三 PLC 基本指令的編程及應用···············································································.82
任務一 三相異步電動機單按鈕啟停的 PLC 控制 ································································.83
任務二 三相異步電動機連續控制電路的 PLC 控制 ·····························································100
任務三 三相異步電動機正反轉的 PLC 控制 ······································································114
任務四 三相異步電動機 Y-△降壓啟動的 PLC 控制 ····························································123
項目四 PLC 步進指令的編程及應用···············································································138
任務一 凸輪旋轉工作臺的 PLC 控制 ···············································································139
任務二 分揀系統的 PLC 控制 ························································································150
任務三 十字路口交通燈的 PLC 控制 ···············································································161
任務四 工業全自動洗衣機的 PLC 控制 ············································································173
項目五 PLC 功能指令的編程及應用···············································································183
任務一 花式噴泉的 PLC 控制 ························································································184
任務二 自動售貨機系統的 PLC 控制 ···············································································194
任務三 小型軋鋼機的 PLC 控制 ·····················································································206
任務四 機械手傳送工件的 PLC 控制 ···············································································215
項目六 觸摸屏與變頻器的控制及應用············································································232
任務一 觸摸屏及其應用 ·······························································································233
任務二 變頻器及其應用 ·······························································································248
任務三 觸摸屏、變頻器對水泵電動機的調速控制 ······························································265
項目七 PLC 通信控制及應用 ·························································································275
任務一 自動化生產線多站通信控制系統設計 ····································································276
任務二 PLC 通信方式控制變頻器運行程序設計·································································290
附錄 ································································································································301
附錄 A FX3U 系列 PLC 的型號名稱體系及其種類 ·······························································301
附錄 B FX3U 系列 PLC 指令表檢索 ·················································································305
附錄 C FX3U 系列 PLC 的一般軟元件編號及名稱檢索 ·························································313
附錄 D FX3U 系列 PLC 的特殊軟元件編號及名稱檢索 ·························································314
答案 ································································································································319
