170M3819400A660V ABB

ABB U3-1IGZ/M12 1X630A/660V/IEC3/M12
ABB 170M2673 1000V 20A
ABB 624EGW21020G1171
ABB TP180IA
ABB N31E

分类: 标签:

Description

直流输入电路的一种形式(只画出一路输入电路)。当图1中外部线路的开关闭合时,PLC内部光耦的发光二极管点亮,光敏三极管饱和导通,该导通信号再传送给处理器,从而CPU认为该路有信号输入;外界开关断开时,光耦中的发光二极管熄灭


HP A7136-60101 RP3440 System Board

HP A6862-69001 SuperDome cell board assembly PA8700/5

HP ProLiant BL465C 2×2.2GHz Dual Core Opteron 4GB RAM

CERAGON FibeAir IP-10

UWATEC ALADIN Z NITROX DIVE COMPUTER

Lot of 6 Avaya 4630 IP Phone

NI National Instruments VXI-DIO-28 183124D-01