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aylenovo
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樓主  發(fā)表于: 2018-05-07 22:41
1、一個(gè)網(wǎng)絡(luò )上的DeviceNet節點(diǎn)不能超過(guò)64個(gè)，實(shí)際設備數量少于等于61個(gè)
2、獨立設備直線(xiàn)不能長(cháng)于6米
3、干線(xiàn)和支線(xiàn)長(cháng)度少于數據傳輸速率所要求的最大值
4、干線(xiàn)的每個(gè)末端都要有終端電阻，每個(gè)電阻值為121歐姆
5、通訊電纜5根信號線(xiàn)之間無(wú)短路，每根信號線(xiàn)無(wú)斷路
6、所有通訊設備的傳輸速率一致
7、網(wǎng)絡(luò )拓撲符合通訊要求
8、PLC和DeviceNet掃描模塊處于運行模式
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