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ming1984
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樓主  發(fā)表于: 2007-12-07 21:19
[b]在用STEP7編程軟件的時(shí)候,有一處輸出需要閃爍報警,別人只加了一個(gè)M250.4的常開(kāi)觸點(diǎn)在輸出前面就實(shí)現了,我一直搞不懂咋回事,在有的書(shū)里提到說(shuō)是用了啥時(shí)鐘存儲功能,也沒(méi)說(shuō)太詳細.現在請教各位大蝦一下,到底是咋回事!
cvlsam
富士低壓，POD（觸摸屏），PLC專(zhuān)賣(mài)
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1樓  發(fā)表于: 2007-12-08 13:47
麻煩樓主使用略微大一點(diǎn)的字體來(lái)照顧閲讀者。

對於300，400的西門(mén)子PLC來(lái)説，其在CPU屬性中可以設置內存地址來(lái)向使用者提供標準的時(shí)間脈衝輸出，猶如200系列提供的SM0.4，或者SM0.5一樣。

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