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ttabc7
級別: 正式會(huì )員
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發(fā)帖數量: 37 個(gè)
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下載積分: 1266 分
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樓主  發(fā)表于: 2025-02-12 13:00
200smart用0口連接2個(gè)模塊。
通信正常。不報錯。
但是用軟件檢測時(shí)候,報錯標志位在0~6~0~6   來(lái)回閃動(dòng)。通信也正常。
沒(méi)搞懂咋回事。

Error         錯誤代碼 只有在 Done 位為1時(shí),錯誤代碼才有效
錯誤代碼: 0=無(wú)錯誤
                     1=響應校驗錯誤
                     2=未用
                     3=接收超時(shí)(從站無(wú)響應)
                     4=請求參數錯誤(slave address,Modbus address,count,RW)
                     5=Modbus/自由口未使能
                     6=Modbus正在忙于其它請求
                     7=響應錯誤(響應不是請求的操作)
                     8=響應CRC校驗和錯誤
                    11 = 端口號無(wú)效
                    12 = 信號板端口 1 缺失或未組態(tài)   1122.rar (47 K) 下载次数:35
wzbarley
好好學(xué)習,天天向上。
級別: 探索解密
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1樓  發(fā)表于: 2025-02-12 13:47
連續讀取兩個(gè)從站的時(shí)間間隔太短了。建議讀取第一個(gè)從站后,等待50ms再讀取第二個(gè)從站。
好好學(xué)習,天天向上。

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