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gzcjx555
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樓主  發(fā)表于: 2024-07-11 07:55
FX3U編程口協(xié)議默認是9600,但是編程軟件或者觸摸屏都可以使用到115200,我們自己上位機寫(xiě)編程口協(xié)議,能不能也切換到115200
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gxtmdb82164
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1樓  發(fā)表于: 2024-07-12 09:35
PLC那頭波特率不也是通過(guò)設置寄存器配置的么,正常的項目PLC和上位機一起做的情況下,PLC程序進(jìn)去第一行就是設置這種基礎參數(上電第一個(gè)掃描周期驅動(dòng))

所以這個(gè)事情就有兩個(gè)解法:
1、改PLC,往對應寄存器里面寫(xiě)設置值就行了,具體寫(xiě)什么要么查手冊要么網(wǎng)上一搜,都有
2、以9600波特率發(fā)命令去改寄存器,改的內容和1一樣的。這里面不用算什么的,甚至不存在什么匹配不匹配的,串口通信是純數字量通信魯棒性拉滿(mǎn),要么通要么不通。

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