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金海洋
工控人家園，工控一家人
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樓主  發(fā)表于: 2022-11-06 07:47
使用smartST40 PLC，共有100臺流量計，如何用485通訊方式進(jìn)行數據讀取， 用485集線(xiàn)器是否可以實(shí)現全部通訊，怎么連接最經(jīng)濟適用
淺酌憶流年
那可路路
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1樓  發(fā)表于: 2022-11-07 15:31
換個(gè)PLC，有多個(gè)485接口的，什么左拓，BD板，右拓，本體自帶，這就是4個(gè)口，然后100個(gè)分成4份，每個(gè)從站就是25個(gè)，完全滿(mǎn)足通訊要求，做程序的時(shí)候多線(xiàn)程運行解決通訊時(shí)間問(wèn)題。

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