Description
输入输出接口是PLC与工业现场控制或检测元件和执行元件连接的接口电路。PLC的输入接口有直流输入、交流输入、交直流输入等类型；输出接口有晶体管输出、晶闸管输出和继电器输出等类型。晶体管和晶闸管输出为无触点输出型电路，晶体管输出型用于高频小功率负载、晶闸管输出型用于高频大功率负载；继电器输出为有触点输出型电路，用于低频负载。
Parker PS1-P1091 Pneumatic Pressure Switch Line Mounted
Carrier Parker Differential Pressure sensor
Lot of PARKER POLYFLEX HIGH PRESSURE FITTING Qty 4 NEW
NEW LOT INDUSTRIAL PARKER HIGH PRESSURE HOSES 2600PSI
NEW PARKER PNEUMATIC REMOTE PILOT SIGNAL PRESSURE VALVE
PARKER AIR PRESSURE with POLYCARBONATE BOWL & GAUGE
