MVI69-MNETC需程序數(shù)據(jù)保持的時候，要多種方法結(jié)合運用以達到理想的結(jié)果。針對程序中需保存數(shù)據(jù)的不同，采取不同的方式實現(xiàn)。對于需在程序第一次運行時進行預置并在程序運行過程中個別情況下進行重新設置的數(shù)據(jù)，如高度、荷重等相關(guān)標定參數(shù)，可在程序的數(shù)據(jù)塊中建立數(shù)據(jù)，并賦予初始數(shù)值。同時在程序中編入SMB31和SMW32命令，在相關(guān)條件下對EEPROM的V數(shù)據(jù)區(qū)進行重新保存，修改先前的初始值。示例如下，當進行參數(shù)設置時，置M0.0為1，完成一次VD100的EEPROM存儲器保存操作。

對于程序運行過程中數(shù)值變化比較頻繁，且需斷電長期保存的數(shù)據(jù)，則可將數(shù)據(jù)存于MB0至MB13存儲區(qū)，且系統(tǒng)塊的斷電數(shù)據(jù)保存設置中將相應的M存儲區(qū)設為斷電數(shù)據(jù)保存。也可使用程序中的V存儲區(qū)，在必要時如上圖所示進行一次程序數(shù)據(jù)存儲，而在斷電數(shù)據(jù)保持設置中可選取，也可不選取。

MVI69-MNETC 

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