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yanzhenhua67
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樓主  發(fā)表于: 2010-08-02 11:45
各位工控專(zhuān)家,小弟初次學(xué)習西門(mén)子S7-300,遇到一些問(wèn)題。
以下是歐姆龍程序,如何在西門(mén)子S7-300實(shí)現呢?

   SFT(010)   H0   H20

    這個(gè)移位寄存器從H0(16位)在脈沖的作用下將數據輸入端的數據連續移動(dòng)到H20(16)共移位20×16=320位,這種功能如何采用S7-300實(shí)現,請給出S7-300實(shí)現的梯形圖?
cvlsam
富士低壓,POD(觸摸屏),PLC專(zhuān)賣(mài)
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1樓  發(fā)表于: 2010-08-02 13:53
調用SHRB(FC92),但是只能移動(dòng)255位。

或許你可以對欲移動(dòng)的最高位進(jìn)行判斷,以使的在這個(gè)最高位的值作為下一個(gè)FC92的輸入從而實(shí)現大于255的位移動(dòng)。

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yanzhenhua67
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2樓  發(fā)表于: 2010-08-02 21:06
試驗一下!

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