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51问答网 > 继电器输出开关量输出有什么区别

继电器输出开关量输出有什么区别

2025-03-16 04:45:24

推荐回答（3个）

回答1：

继电器输出是继电器无源触点输出，开关量输出是有源开关量模拟输出；有输出电压或电流等。

回答2：

继电器输出是模块通道上增加了继电器来隔离现场设备与模块电路之间
起到安全保护作用，开关量就是普通的开闭点输出。

回答3：

继电器出的的信号时数字信号哦~~开关量也就是所谓的0
1
0为关/开
1为开/关
而
0
和1
就是数字信号
所以我继电器输出的就是开关量

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