6ES73211CH200AA0

SIMATIC S7-300,數字量輸入M 321,光電隔離,16 DI,DC 48 - 125V,20
SIMATIC S7-300, DIGITALEINGABESM 321, POTENTIALGETRENNT,16 DE, DC 48 - 125V, 20-POLIGSIMATIC S7-300, DIGITAL INPUTSM 321, OPTICALLY ISOLATED,16 DI, DC 48 - 125V, 20 PIN
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