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3G3DV-ADEV-1【3G3DV-ADEV-1】
- 品牌:其他
- 规格:3G3DV-ADEV-1
- 材质:3G3DV-ADEV-1
- 产地:美国
- 更新时间:2014-09-10
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吴金孝 先生
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3G3DV-ADEV-1
3G3DV-ADEV-1
3G3DV-ADEV-1
模拟量I/O模块的主要功能是数据转换,并与PLC内部总线相连,同时为了也有电气隔离功能。模拟量输入(A/D)模块是将现场由传感器检测而产生的连续的模拟量信号转换成PLC内部可接受的数字量;模拟量输出(D/A)模块是将PLC内部的数字量转换为模拟量信号输出。
典型模拟量I/O模块的量程为-10V~+10V、0~+10V、4~20mA等,可根据实际需要选用,同时还应考虑其分辨率和转换精度等因素。
一些PLC制造厂家还提供特殊模拟量输入模块,可用来直接接收低电平信号(如RTD、热电偶等信号)。
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