廈門市泰尼電器有限公司
主營產(chǎn)品: AB模塊PLC |
廈門市泰尼電器有限公司
主營產(chǎn)品: AB模塊PLC |
參考價 | 面議 |
【IC697BEM731】【IC697BEM731】
【】【】
①Q(mào)、M、S、C等元器件的位保持跳轉(zhuǎn)前的狀態(tài);
②計數(shù)器C停止計數(shù),當(dāng)前值存儲器保持跳轉(zhuǎn)前的計數(shù)值;
③對定時器來說,因刷新方式不同而工作狀態(tài)不同。在跳轉(zhuǎn)期間,分辯率為1 ms和10 ms的定時器會一直保持跳轉(zhuǎn)前的工作狀態(tài),原來工作的繼續(xù)工作,到設(shè)定值后其位的狀態(tài)也會改變,輸出觸點動作,其當(dāng)前值存儲器一直累計到zui大值32 767才停止。對分辨率為100 ms的定時器來說,跳轉(zhuǎn)期間停止工作,但不會復(fù)位,存儲器里的值為跳轉(zhuǎn)時的值,跳轉(zhuǎn)結(jié)束后,若輸入條件允許,可繼續(xù)計時,但已失去了準確計時的意義。所以在跳轉(zhuǎn)段里的定時器要慎用。跳轉(zhuǎn)指令的使用方法如圖2所示。
:張亮(工程師) 專線:
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