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hsiung
Just do as you want.
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樓主  發(fā)表于: 2010-05-21 15:06
現在程序基本完成，主要是如何制作這要PLC與D740的連接線(xiàn)？
按照手冊上的說(shuō)明，變頻端3.4.5.6分別是R+.T-.T+.R-，那么到PLC的這一端應該如何連接9針的D型頭呢？在網(wǎng)上搜索了半天，沒(méi)有找到答案，特來(lái)請教一下本壇的專(zhuān)家  
Evaluate your time,
Controll your life.
dich0818
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1樓  發(fā)表于: 2010-05-24 19:59
S7-200的通訊口是RS485接口，3+ 8-
變頻端3.4.5.6分別是R+.T-.T+.R-，其中3、5端接作為RS485的+；4、6端接作為RS485的-
PLC端的九針公頭得自己焊接
安川變頻器也是這種接法

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