题目内容

斜坡上升时间是指

A. 电机运行所需的时间
B. 电机启动到停止所需的时间
C. 电机启动到设定上限所需的时间
D. 电机设定上限到停止所需的时间

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下列哪个控制字数据能够控制电机停止

A. 16
B. 047F
C. 16
D. 047E
E. 16
F. 047C
G. 16
H. 047A

控制字1的第10位数据的功能是(),最低位的功能是()

A. 通过PLC控制
B. ON/OFF1
C. ON/OFF2
D. 脉冲使能

电机在运行过程中,想要使电机反转运行,则需要通过PLC的控制字发送16#0C7F

A. 对
B. 错

1.Wang Liang worked in a 1)_________ Join t Venyure. One day, on his way to the coffee machine, he found that Wolfgang,one of his German colleagues,had seemingly gotten rather involved in a 2)__________. Out of curiosity, Wang 3)___________ Wolfgang so he could 4)_________ at the newspaper.2. But all of a sudden, Wolfgang lost his 5)________,began to complain about Wang’s invasion of his 6)_________, and demanded an apology from him.Wang felt rather 7)____________ and kept explaining that he had not realized that his behavior was 8)________.3. After this,whenever Wang stepped toward Wolfgang, he would soon 9)___________what e was doing, or stand up to keep a clear 10)__________ with Wang.

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