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dushengkun
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樓主  發(fā)表于: 2018-09-07 19:53
掃碼槍RS232與三菱PLC通訊通過(guò)無(wú)協(xié)議通訊，RS指令通訊

可以觸發(fā)掃碼槍掃碼，掃碼槍已經(jīng)掃到條碼了，但是PLC的寄存器卻沒(méi)有讀到內容

D8129已經(jīng)賦值K100有足夠的時(shí)間，但是每次都M8129通訊超時(shí)觸發(fā)M8123接通結束指令

求大神指點(diǎn)迷津�。�！
附件： 掃碼槍測試.rar (159 K) 下載次數:55
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znz43
工控職業(yè)已成回憶 只因愛(ài)好�；丶覉@ 樂(lè )此不疲
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1樓  發(fā)表于: 2018-09-08 11:23
發(fā)送給掃描槍的4字符中已包含回車(chē)符，再加報尾（D8125)又是回車(chē)符，是否重復？
會(huì )不會(huì )掃描槍接收到第二個(gè)回車(chē)符把送數據指令撤消了，沒(méi)有掃描槍手冊不清楚是否正確，僅供參考。
出門(mén)打工難，打工學(xué)藝難，學(xué)藝拜師難，找到好師傅更難。
贈人玫瑰，手留余香。舍得舍得，有舍才有得。

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