C8451-A1-A197

產(chǎn)品精品  價格百年一遇







廈門岳航計算機工程有限公司



電話；0592-5085329

省錢熱線；18030132586（陳工）

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C8451-A1-A197

廈門市思明區(qū)湖濱東路湖光大廈8樓A座
將所有與PLC相關(guān)的輸入信號(按鈕、行程開關(guān)、速度及溫度等傳感器)，輸出信號(接觸器、電磁閥、信號燈等)分別列表，并按PLC內(nèi)部接口范圍，給每個信號分配一個確定的編號。
(3)詳細了解生產(chǎn)工藝和設(shè)備對控制系統(tǒng)的要求。畫出系統(tǒng)各個功能過程的工作循環(huán)圖或流程圖、功能圖及有關(guān)信號的時序圖。
(4)按照PLC程序語言的要求設(shè)計梯形圖或編寫程序清單。梯形圖上的文字符號應(yīng)按現(xiàn)場信號與PLC內(nèi)部接口對照表的規(guī)定標注。
2．PLC程序設(shè)計的一般原則
(1)保證人身與設(shè)備安全的設(shè)計都不是多余的。
(2)PLC程序的安全設(shè)計，并不代表硬件的安全保護可以省略。
(3)了解PLC自身的特點。
(4)設(shè)計調(diào)試點易于調(diào)試。
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