A.電源沒(méi)打開(kāi)B.電源打開(kāi)且正常C.正在發(fā)送數(shù)據(jù)D.未發(fā)送數(shù)據(jù)
A.串口1/2正在接受數(shù)據(jù)B.未發(fā)送數(shù)據(jù)C.串口1/2正在發(fā)送數(shù)據(jù)D.未接收數(shù)據(jù)
A.監(jiān)控模塊B.監(jiān)測(cè)模塊C.檢測(cè)模塊D.檢查模塊