描述
CPU模块的工作电压一般是5V，而PLC的输入／输出信号电压一般较高，如直流24V和交流220V。从外部引入的尖峰电压和干扰噪声可能损坏CPU模块中的元器件，或使PLC不能正常工作。在I／O模块中，用光耦合器、光电晶闸管、小型继电器等器件来隔离PLC的内部电路和外部的I／O电路，I／O模块除了传递信号外，还有电平转换与隔离的作用。
UP40 Yokogawa General Use program Process Controller
One-day shipping available
Yokogawa UP25 Program Controller Suffix -A41101 *A
Yokogawa PLC set-SP35-5N, LE01-5T, XD32, XD64, YD64
Yokogawa PLC set-SP35-SN, LE01-5T, XD32, XD64, YD64
Yokogawa DD servo DYNASERV UD1AG3-050N-1AA-2SA-N (16A)
YOKOGAWA UT550-10 USPP UT55010
USED YOKOGAWA MAGNETIC FLOWMETER YEWMAG CYM205G-AB-1LSA
YOKOGAWA B9514WN USPP B9514WN
YOKOGAWA F3LE01-5T F3LE015T Free Ship
YOKOGAWA UR180 USPP UR180
YOKOGAWA D3100X LAMP D3100XLAMP WITH HOUSING
One-day shipping available
Used Yokogawa EXA SC402 Transmitter
One-day shipping available
