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西門子plc中梯形圖和語句表怎么相互轉換?

發布日期:2022-04-26 點擊率:916 品牌:組態王_Kingview

    梯形圖和語句表的轉化在PLC編程軟件工具欄查看里選擇切換。

    西門子S7-200的PLC對語句表編寫的格式要求多,因為200的語句表和梯形圖可任意切換,如果語句表格式不對,即回出現編譯錯誤。所以一般多為梯形圖,且程序里只能有一個語言,要么全部都是語句要么全部都是梯形。

    西門子S7-300的PLCCPU功能強大,兼容語句表和梯形圖同時存在。梯形圖編輯好后可轉化到語句表,也就是指令表,也可在轉化后的指令表里刪減些沒用的指令,但是刪減后的語句表能運行,卻不能再次轉化為梯形圖。因為300的PLC對指令表的功能很支持,所以編指令的程序很方便,本人也是經常在指令語句和梯形語句中來回切換著編程,編到最后一半是梯形圖,一半是指令語言。

    而且一般人編S7-300的指令語句,基本上都不符合轉化成梯形圖的要求,所以你看300的程序,當切換到梯形圖時,依舊還有很多以指令的方式存在,便是這個原因。

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