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廣州濟南0910
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樓主  發(fā)表于: 2016-12-30 18:31
松下plc與稱(chēng)重儀表和變頻器modbus RTU
通信。plc單獨與7個(gè)稱(chēng)重儀表可以正常通信，plc單獨與7個(gè)變頻器也可以正常通信。為什么plc跟稱(chēng)重儀表加變頻器一起通信就會(huì )出現稱(chēng)重儀表讀不到數據，變頻器通信正常。plc跟7個(gè)稱(chēng)重儀表加兩個(gè)變頻器通信有能正常通信。稱(chēng)重儀表地址是1號到7號站，變頻器地址是8號到14號站。先謝謝各位大俠了

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