描述
I/O单元实际上是PLC与被控对象间传递输入输出信号的接口部件。I/O单元有良好的电隔离和滤波作用。接到PLC输入接口的输入器件是各种开关、按钮、传感器等。PLC的各输出控制器件往往是电磁阀、接触器、继电器，而继电器有交流和直流型，高电压型和低电压型，电压型和电流型。
Expedited shipping available
(1) Used 100 HP Reliance Electric Motor
Reliance Static Sequence 0-51874 051874 NEW!
One-day shipping available
RELIANCE 10HP RPM DC MOTOR 2LA843219T1 MY 1750 RPM
Reliance # 57407 Electric Processor # 57407
Reliance Electric Analog Input 61C542A
Expedited shipping available
Reliance Electric Analog Output 45C363
One-day shipping available
Dodge 350 Tigear Reducer w/ Reliance Electric Motor
Reliance Lorain Power Supply
Reliance Rectifier Thyristor 86466-58S 8646658S NEW
