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hbjy
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樓主  發(fā)表于: 2009-09-09 17:09
PLC型號為FX2N-64MR-001或FX2-64MR，三個(gè)BCD撥碼開(kāi)關(guān)組Com點(diǎn)分別接Y4 Y5 Y6，其它12個(gè)點(diǎn)接入X20—X33，請問(wèn)串接二極管型號和方向？
xiaoqizi
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1樓  發(fā)表于: 2009-09-09 17:59
X端接二極管陽(yáng)級(正),每個(gè)接按鍵的X端中間都要加,用來(lái)做隔離
hbjy
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2樓  發(fā)表于: 2009-09-10 08:14
二極管選用什么樣的管，IN4001可以么
xiaoqizi
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3樓  發(fā)表于: 2009-09-10 13:12
可以的，耐壓值超過(guò)24V，帶點(diǎn)余量就可以了，反正頻率非常低，電流大于15mA

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