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pl00003
代寫(xiě)施耐德程序，提供施耐德整體方案
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樓主  發(fā)表于: 2010-12-27 18:03
就當我現在有4個(gè)PLC要通訊，分別為1.2.3.4，接下來(lái)是我的想法：
    每個(gè)PLC上裝一個(gè)485通訊模塊，從1臺485模塊引線(xiàn)到端子，再從端子另一側引線(xiàn)出來(lái)，接到2臺端子，再從端子另一側引線(xiàn)出來(lái)，接到2臺PLC，那么我的問(wèn)題是，如何從2臺接到3臺呢，是再從2臺端子引線(xiàn)出來(lái)到3臺端子嗎？還是說(shuō)再在2臺PLC上加個(gè)485模塊，再引線(xiàn)出來(lái)？
    我的表達不是很好，大俠們仔細看下？跪謝跪謝
sliping
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1樓  發(fā)表于: 2010-12-27 21:04
    

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