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Last modified by Xiaoling on 2025/04/23 15:57
From version 30.8
edited by Xiaoling
on 2022/06/02 09:37
Change comment: There is no comment for this version
To version 31.2
edited by Xiaoling
on 2022/06/02 09:38
Change comment: There is no comment for this version

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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:
925 925  
925 +**Example:**
926 +
926 926  * AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
927 927  * 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.
928 928  * 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.
929 929  
930 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
931 +[[image:1654133913295-597.png]]
931 931  
932 932  
933 933  [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1654133913295-597.png
Author
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1 +XWiki.Xiaoling
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1 +116.2 KB
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