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ljliuwei
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樓主  發(fā)表于: 2010-07-27 17:30
用200 CPU226CN編程,條件是:輸入0--400Pa?刂茍绦衅鏖_(kāi)度0---100%(對應4--20MA),當壓力大于80Pa時(shí),輸出4-20MA信號使執行器動(dòng)作,壓力一直大于80Pa,則輸出信號一直有輸出至20MA。當壓力小于20Pa時(shí),輸出4-20MA信號使執行器動(dòng)作,壓力一直小于80Pa,則輸出信號一直有輸出至4MA。在20Pa--80Pa之間則4--20MA信號停留在小于80PA的固定值,請問(wèn)該怎么樣編程。謝謝!最好有程序。我的郵箱是ljliuwei@21cn.com。

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