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樓主  發(fā)表于: 2009-07-08 14:18
如果只用到一個(gè)主機架來(lái)搭配S7-300的各個(gè)模塊, 是不是可以取消3號槽的IM接口模塊?

或者說(shuō)實(shí)際硬件排列是不是可以這樣排,  1號槽 PS307, 2號槽 CPU315-2DP,  然后用U形總線(xiàn)直接連接 DI模塊,而軟件組態(tài)的時(shí)候把3號槽空著(zhù)
wwcwwc
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1樓  發(fā)表于: 2009-07-14 20:33
我的理解:三號槽是安放通信模塊位置的,如PROFIBUS等.你組態(tài)時(shí)可以不用理會(huì ).直接在后面繼續組態(tài)相關(guān)模塊.但實(shí)際安裝時(shí)應該在CPU模塊后面安裝其它實(shí)際的模塊.

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