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。
PITTMAN GEARED GEARHEAD DC MOTOR MODEL#GM9233C577-R1
SUPERIOR ELE. STEPPING STEP MOTOR #MA61FS-62019 60oz-in
Giannini Linear Stroke Potentiometer stroke 1/2″
HURST SYNCHRONOUS GEARHEAD GEARED MOTOR 115VAC
GEARED MOTOR 12VDC HIGH TORQUE 250 OZ-IN. SPEED 70RPM
GEARED MOTOR 12VDC HIGH TORQUE 250 OZ-IN. SPEED 8RPM
GEARED MOTOR 12VDC HIGH TORQUE 150 OZ-IN. SPEED 2.5 RPM
HITACHI 24VDC MOTOR WITH OPTICAL ENCODER MODEL D04A191E
TRW GLOBE DC GEARED GEARHEAD MOTOR #JCO-155 420 RPM
PITTMAN GEARED GEARHEAD DC MOTOR MODEL#GM9412L179 NEW
PRESSURE TRANSDUCER 0-1000 PSIG POTENTIOMETER TYPE 1K
VERNITECH LINEAR MOTION POTENTIOMETER 10K STROKE: 1″
