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溫柔的郎
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樓主  發(fā)表于: 2023-03-10 10:50
各位大神好，請教個(gè)問(wèn)題，
   我在用S7 1513R冗余cpu下掛ET200SP子站+PTP通信模塊，做RS485 Modbus rtu通信時(shí)，上位機用Modbus poll軟件，無(wú)法連接，TIA軟件監控提示故障，如下
網(wǎng)上查詢(xún)這個(gè)16#8282故障代碼，有網(wǎng)友說(shuō)是port參數有問(wèn)題，如下


我的軟件編程，設置如下
此處地址默認時(shí)0-7，我按slave塊分配的地址改為287了


哪里還有部隊的嗎？？請有知道的大神指點(diǎn)指點(diǎn)
非常感謝��！
  

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