COBRA 92-1774AT
問:我用的CPU是S7-200CN 224XP。請問在沒有電池的情況下數(shù)據(jù)能保存多長時間?
答:你說的問題如果沒有電池的話,正常是4天數(shù)據(jù)就沒有了,但程序還在,不會消失,消失的只是諸如時間,計數(shù)器的值。這是沒有設(shè)定永久保存的數(shù)據(jù)存貯時間。
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