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Last modified by Xiaoling on 2025/04/23 15:57
From version 32.1
edited by Xiaoling
on 2022/06/02 09:39
Change comment: Uploaded new attachment "1654133954153-643.png", version {1}
To version 31.1
edited by Xiaoling
on 2022/06/02 09:38
Change comment: Uploaded new attachment "1654133913295-597.png", version {1}

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906 906  
907 907  
908 908  
909 -==== **Fast command to handle MODBUS device** ====
909 +==== Fast command to handle MODBUS device ====
910 910  
911 911  AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
912 912  
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913 913  This command is valid since v1.3 firmware version
914 914  
915 915  
916 -**AT+MBFUN has only two value:**
916 +AT+MBFUN has only two value:
917 917  
918 918  * AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
919 919  
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921 921  
922 922  * AT+MBFUN=0: Disable Modbus fast reading.
923 923  
924 +Example:
924 924  
925 -**Example:**
926 -
927 927  * AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
928 928  * AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
929 929  * AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
930 930  
931 -[[image:1654133913295-597.png]]
930 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
932 932  
933 933  
934 934  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1654133954153-643.png
Author
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1 -XWiki.Xiaoling
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