西门子6ES72221BD220XA0
SIMATIC S7-200,数字量输出EM 222,仅用于S7-22X CPU,4DO,4- 24V DC;5 A/点,
SIMATIC S7-200, DIGITALAUSGABEEM 222, NUR FUER S7-22X CPU,4 DA, DC4-24V; 5 A/KANAL SOURCESIMATIC S7-200, DIGITAL OUTPUTEM 222, FOR S7-22X CPU ONLY,4DO, 4-24V DC; 5 A/POINT SOURCE
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