【正文】 中北大學(xué) 2022 屆畢業(yè)設(shè)計說明書第 I 頁 共 II 頁目錄1 引言 ........................................................................................................................................1 研究的背景及意義 ........................................................................................................1 低壓鑄造的基本原理 ....................................................................................................22 硬件系統(tǒng)方案設(shè)計 ................................................................................................................33 硬件設(shè)計 ................................................................................................................................4 基于電磁泵的 PLC 選型 ..............................................................................................4 電磁閥的選型 ................................................................................................................5 壓力傳感器的選型 ........................................................................................................6 溫度傳感器的選型 ........................................................................................................6 觸摸屏的選型 ................................................................................................................7 比例閥的選型 ................................................................................................................7 硬件系統(tǒng)的設(shè)計 ............................................................................................................8 電路設(shè)計 ........................................................................................................................94 程序的編寫和指令集 ..........................................................................................................10 工程設(shè)計前準(zhǔn)備 ..........................................................................................................10 觸摸屏組態(tài)軟件的設(shè)計 ..............................................................................................10 觸摸屏組態(tài)編輯軟件 EV5000 介紹 ..................................................................10 組態(tài)軟件的設(shè)計 ..................................................................................................10 PLC 程序的設(shè)計 .........................................................................................................17 西門子 S7200 系列幾種指令介紹 ....................................................................17 西門子 STEP 7Micro/WIN SP6 編程軟件介紹 .....................................18 PLC 梯形圖程序設(shè)計 .........................................................................................185 結(jié)論 ......................................................................................................................................20附錄 1........................................................................................................................................21附錄 2........................................................................................................................................23附錄 3........................................................................................................................................29參考文獻 ...................................................................................................................................34中北大學(xué) 2022 屆畢業(yè)設(shè)計說明書第 II 頁 共 II 頁致謝 ................................................................................................