西門子S7-1500PLC上電屏幕不顯示售后維修

西(xi)(xi)門(men)(men)(men)子(zi)(zi)S7-1500CPU開機無顯示維(wei)(wei)(wei)(wei)修(xiu)(xiu)，西(xi)(xi)門(men)(men)(men)子(zi)(zi)CPU1500上(shang)電(dian)黑屏維(wei)(wei)(wei)(wei)修(xiu)(xiu)，西(xi)(xi)門(men)(men)(men)子(zi)(zi)CPU1500啟動(dong)面板不亮(liang)維(wei)(wei)(wei)(wei)修(xiu)(xiu)，西(xi)(xi)門(men)(men)(men)子(zi)(zi)CPU1500上(shang)電(dian)無顯示維(wei)(wei)(wei)(wei)修(xiu)(xiu)，西(xi)(xi)門(men)(men)(men)子(zi)(zi)CPU1500上(shang)電(dian)屏幕不亮(liang)維(wei)(wei)(wei)(wei)修(xiu)(xiu)，西(xi)(xi)門(men)(men)(men)子(zi)(zi)CPU1500上(shang)電(dian)無反應維(wei)(wei)(wei)(wei)修(xiu)(xiu)，西(xi)(xi)門(men)(men)(men)子(zi)(zi)CPU1500上(shang)電(dian)不啟動(dong)維(wei)(wei)(wei)(wei)修(xiu)(xiu)，西(xi)(xi)門(men)(men)(men)子(zi)(zi)CPU1500接錯電(dian)燒(shao)壞維(wei)(wei)(wei)(wei)修(xiu)(xiu)，西(xi)(xi)門(men)(men)(men)子(zi)(zi)CPU1500啟動(dong)亮(liang)紅(hong)燈維(wei)(wei)(wei)(wei)修(xiu)(xiu)，西(xi)(xi)門(men)(men)(men)子(zi)(zi)PLC1500接錯電(dian)燒(shao)壞維(wei)(wei)(wei)(wei)修(xiu)(xiu)，西(xi)(xi)門(men)(men)(men)子(zi)(zi)PLC1500PLC1500啟動(dong)亮(liang)紅(hong)燈維(wei)(wei)(wei)(wei)修(xiu)(xiu)，西(xi)(xi)門(men)(men)(men)子(zi)(zi)PLC1500網口燈不亮(liang)維(wei)(wei)(wei)(wei)修(xiu)(xiu)，西(xi)(xi)門(men)(men)(men)子(zi)(zi)PLC1500通(tong)訊連(lian)接不上(shang)維(wei)(wei)(wei)(wei)修(xiu)(xiu)

主機部分包括中央處理器（CPU）、系統程序存儲器和用戶程序及數據存儲器。CPU是PLC的核心，它用以運行用戶程序、監控輸入/輸出接口狀態、作出邏輯判斷和進行數據處理，即讀取輸入變量、完成用戶指令規定的各種操作，將結果送到輸出端，并響應外部設備（如電腦、打印機等）的請求以及進行各種內部判斷等。PLC的內部存儲器有兩類，一類是系統程序存儲器，主要存放系統管理和監控程序及對用戶程序西門子S7-1500PLC上電屏幕不顯示售后維修作編譯處理的程序，系統程序已由廠家固定，用戶不能更改；另一類是用戶程序及數據存儲器，主要存放用戶編制的應用程序及各種暫存數據和中間結果