对于PLC，内部标志位（）可以按位使用，作为控制继电器（又称中间继电器），用来存储中间操作数或其他控制信息。 -题库考试答案搜索网

对于PLC，内部标志位（）可以按位使用，作为控制继电器（又称中间继电器），用来存储中间操作数或其他控制信息。

单选题

2022-04-19 21:41

A、用M表示
B、用I表示
C、用Q表示

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正确答案

A

试题解析

标签： CMS专题专科机械制造与自动化国家开放大学(数控机床电气控制)

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