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lishiyu3341
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樓主  發(fā)表于: 2021-08-29 21:36
MODBUS RTU 傳輸模式
編碼系統: 8 位二進(jìn)制
報文中每個(gè) 8 位字節含有兩個(gè) 4 位十六進(jìn)制字符(0-9、A-F)
每個(gè)字節中的位: 1 個(gè)起始位
8 個(gè)數據位,先發(fā)最低有效位
無(wú)奇偶校驗位
1 位停止位
波特率: 9600bps
設置從機 ID
01 10 30 00 00 01 02 14 00 99 53
01 10 30 00 00 01 0E C9
獲取溫度和 COD
01 03 26 00 00 04 4F 41
01 03 08 00 00 8D 41 00 00 8D 41 CRC
獲取 COD 用戶(hù)校準參數
01 03 11 00 00 04 41 35
01 03 08 00 00 80 3F 00 00 00 00 9E 12
設置 COD 用戶(hù)校準參數
01 10 11 00 00 04 08 00 00 80 3F 00 00 00 00 81 AE
01 10 11 00 00 04 C4 F6
獲取從機 ID
FF 03 30 00 00 01 9E D4
FF 03 02 03 00 91 60

開(kāi)啟刷子
01 10 31 00 00 00 00 74 94
01 10 31 00 00 00 CE F5


求大神解答下這個(gè)說(shuō)明書(shū)該怎么設置?怎么看進(jìn)制。
tkggtdkjpl
工欲善其事,必先利其器!
級別: 網(wǎng)絡(luò )英雄

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1樓  發(fā)表于: 2021-08-29 21:57
設置看COD手冊,參數設好了,只是PLC讀COD當前值,那就程序的問(wèn)題了
自動(dòng)化單機,生產(chǎn)線(xiàn),項目編程調試!

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