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。
DALSA CL-E2-2048A-STDM Industrial Camera Advisor
Fluke 515A Portable Calibrator
BECKER VTC6/2 D71A4P VACUUM PUMP
BECKER VTC672-09 D71A4P VACUUM PUMP
KENWOOD PW18-2 REGULATED DC POWER SUPPLY
KENWOOD PW36-1 REGULATED DC POWER SUPPLY
2 AGILENT HP 6030A SYSTEM POWER SUPPLY
TABLE-TOP PCB PNEMATIC PRESS
PCB PNEMATIC PRESS
MOORE 74G VALVE FLOW CONTROL SYSTEM
