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csca1
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樓主  發(fā)表于: 2018-09-27 10:33
RT，想找一款能用于200的modbus io模塊，也能支持200smart的以太網(wǎng)通訊，也就是模塊必須有485通訊口和以太網(wǎng)口，8in/8out.
eledesigner
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1樓  發(fā)表于: 2018-10-09 14:17
第三方支持以太網(wǎng)的不便宜，而且可靠性沒(méi)法保證，不如用一個(gè)smart，兩個(gè)plc做S7通信，明年的話(huà)smart的網(wǎng)口支持PN通信了，速度更快。

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