PLC在真空壓力浸漆控制系統中的應用

論文編號:ZD1451  論文字數:10123,頁數:36

PLC在真空壓力浸漆漆控制系統中的應用

 摘  要
 PLC控制系統是為了工藝流程服務的，所以它首先要能很好的實現工藝提出的控制要求。PLC控制系統的設計應遵循以下原則。
根據工藝流程進行設計，力求設計出來的控制系統能最大限度地滿足控制求。在滿足控制要求的前提下，盡量減少PLC系統硬件費用。考慮到以后控制要的變化，所以控制系統設計時應考慮PLC的可擴展性。控制系統使用和維護方便、安全可靠。
 PLC的編程主要是通過編程器或使用PLC公司提供的編程軟件來完成的。
每個PLC公司都有自己的編程器，一般它比較小，而且比較輕，適合在現場使用。但是它只能使用助記符語言對PLC進行編程，而且由于屏幕較小，每次只能顯示一兩行程序，難于對程序從整體上進行分析。
            PLC公司提供的編程軟件則能使用梯形圖、助記符或功能塊圖語言進行編程。通過編程軟件，不僅能在一個屏幕上看到十幾頁，甚至幾十頁的程序，從宏觀上對程序進行編輯和分析，而且它能對程序的運行情況進行監視。
  [關鍵詞]輸入/輸出 控制程序 PLC
PLC in vacuum pressure dipping lacquer paint control system application
                              Yu  Juan  Wang 
0201 Electrical Information
 Abstract: The PLC control system is for the technical process service, therefore it first must be able the very good realization craft to propose control request.The PLC control system design should follow following principle. Carries on the design according to the technical process, the control system which the endeavour designs can maximum limit satisfy the control to ask.In satisfies the control request under the premise, reduces the PLC system hardware expense as far as possible.Considered later will control the change which will want, therefore time control system design will be supposed to consider PLC the extendibility.The control system uses and maintains conveniently, safe reliable.
The PLC programming mainly is or uses the programming softwarethrough the programmer which PLC Corporation provides to complete. Each PLC Corporation all has own programmer, it quite is generally young, moreover quite light, suits in the field use.But it only can use the mnemonic symbol language to carry on the programming to PLC, moreover because the screen is small, each time only can demonstrate 12 lines of procedures, difficulty with overall carry on the analysis to the procedure. PLC Corporation provides the programming software can use the trapezoidal chart, the mnemonic symbol or the function block chart language carries on the programming.Through programs the software, not only can see on a screen to several pages, even several dozens pages of procedures, macroscopically carry on the edition and the analysis to the procedure, moreover it can carry on the surveillance to the procedure movement situation.
 
 Key words: PLC  the transport cars control system

  目  錄
第一章  緒論 0
1.1 PLC的定義 1
1.2 PLC的發展現狀 1
1.3 PLC的發展趨勢 1
1.4 PLC的特點 2
1.5 PLC的分類 2
1.6 PLC的基本結構 2
第二章  真空壓力浸漆控制系統的工藝流程及設備控制要求 3
2.1 真空壓力浸漆的工藝流程 3
2.2 真空壓力浸漆控制系統的PLC選型和資源配置 6
第三章  真空壓力浸漆控制系統程序設計和資源分配 8
3.1編程軟件 8
3.2 程序的流程圖、構成和相關設置 8
3.3系統資源分配 10
第四章  源程序 14
4.1 緊急停止中間繼電器 14
4.2 運行狀態 14
4.3加熱水箱管道泵、儲漆罐攪拌電機和冷卻循環水箱管道泵 15
4.4 干燥罐真空閥、干燥罐進風閥和排風閥 16
4.5  浸漆罐真空閥 17
4.6 儲漆罐真空閥 19
4.7 真空閥、水環泵進氣閥、進水閥、真空機組水環泵和破真空閥 19
4.8 真空機組冷卻水循環水泵 22
4.9 真空機組羅茨泵 23
4.10輸漆閥 25
4.11 浸漆罐加壓閥 26
4.12 回漆閥 27
4.13 通風閥 28
4.14  通風閥 29
4.15浸漆罐風機 30
4.16干燥罐風機 31
4.17故障報警 32
4.18 狀態顯示 33
第五章  設計小結 35
致謝 36
參考文獻 37