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。
HONEYWELL TWS9000 VERSAFLOW ULTRASONIC FLOW CONVERTER
NEW HONEYWELL YAMATAKE 82408485-001 PWB SBLA III SCBC03
SCP POWER CONTROL CENTER AC DISTRIBUTION MODULE
LEYBOLD TRIVAC D65BCS VACUUM PUMP
NEW MILLIPORE SH4R028R6 CHEMLINE II PF-80 PREWET FILTER
SIMPLIMATIC AUTOMATION MODEL 2662 TOOL
NEW AMERICAN ULTRAVIOLET LTX10ABFLA6 HVAC FILTER
NEW SATO M-8400S REPLACEMENT CIRCUIT BOARD
ISOMET 1207B-6 100WATT IR ACOUSTO-OPTIC MODULATOR
NEW VAT 01028-KE14-0004 MINI UHV VACUUM GATE VALVE NW25
MITSUBISHI A2USHCPUS1 CPU MODULE MAX 30K STEPS
ENERCON DATA LM3414-01 CONTROL BOARD, ENER0001
