品牌:ABB | 規格:3BSE032402R1 | 材質:3BSE032402R1 |
產地:瑞士 |
3BSE032402R1
3BSE032402R1
3BSE032402R1
局部變量
S7中的局部變量又稱為“臨時變量(Temporary)”,它用於存儲邏輯塊內部中間狀態暫存的寄存器(堆棧L),堆棧的狀態僅在所在的邏輯塊內部生效,不可以用於其他邏輯塊。
(3)靜態變量
靜態變量( Static)只能用於功能塊FB,它存儲在與功能塊配套的即時數據塊DI中,僅對所調用的FB塊有效,結果可以記憶,但只能與FB配套使用,不能用於其他邏輯塊。
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