s7-200PLC可编程控制器指示灯有:()。A、SFB、RUNC、STOPD、TERM
s7-200PLC可编程控制器指示灯有:()。
- A、SF
- B、RUN
- C、STOP
- D、TERM
相关考题:
The term “moderate speed” was previously interpreted as meaning a speed which would enable a vessel ______ within half the range of visibility.A.stoppingB.being stoppedC.to stopD.to be stopped
The term "moderate speed" was previously interpreted(解释) as meaning a speed which would enable a vessel ______within half the range of visibility.A.stoppingB.being stoppedC.to stopD.to be stopped
判断题PLC可编程控制器故障时,“ERR”故障指示灯不亮。A对B错