IS200TRESH1A GE

LANTIME-M300 GE
DS200IQXSG1A GE
DS200FSAAG1A GE
IS200EPSMG1A GE
1520R-S250 GE
DS200SLCCG1ABB GE
DS200FSAAG2ABA GE
IS20OERGTH1A GE
IS200VTURH2B GE

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描述

开关量输出模块用来控制接触器、电磁阀、电磁铁、指示灯、数字显示装置和报警装置等输出设备,模拟量输出模块月手来控制调节阀、变频器等执行装置。CPU模块的工作电压一般是5V,而PLC的输入/输出信号电压一般较高,如直流24V和交流220V。从外部引入的尖峰电压和干扰噪声可能损坏CPU模块中的元器件,或使PLC不能正常工作。在I/O模块中,用光耦合器、光电晶闸管、小型继电器等器件来隔离PLC的内部电路和外部的I/O电路,I/O模块除了传递信号外,还有电平转换与隔离的作用。

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