品牌:KEBA | 规格:KEBA C50D01VX | 材质:KEBA C50D01VX |
产地:美国 |
KEBA C50D01VX
KEBA C50D01VX
KEBA C50D01VX
PLC常见的输入设备有按钮、行程开关、接近开关、转换开关、拨码器、各种传感器等,输出设备有继电器、接触器、电磁阀等。正确地连接输入和输出电路,是保证PLC可靠工作的前提。
一、 PLC与主令电器类设备的连接
如图1所示是与按钮、行程开关、转换开关等主令电器类输入设备的接线示意图。图中的PLC为直流汇点式输入,即所有输入点共用一个公共端COM,同时COM端内带有DC24V电源。若是分组式输入,也可参照图1的方法进行分组连接。
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