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Last modified by Xiaoling on 2025/04/23 15:57
From version 32.6
edited by Xiaoling
on 2022/06/02 09:42
Change comment: There is no comment for this version
To version 30.8
edited by Xiaoling
on 2022/06/02 09:37
Change comment: There is no comment for this version

Summary

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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 -* **AT+MBFUN=1**: Enable Modbus reading. And get response base on the MODBUS return
918 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
919 919  
920 920  AT+MBFUN=1, device can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
921 921  
922 -* **AT+MBFUN=0**: Disable Modbus fast reading.
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 -[[image:1654133954153-643.png]]
933 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
935 935  
936 936  
937 -* **Downlink Commands:**
936 +* Downlink Commands:
938 938  
939 -**A9 aa** ~-~-> Same as AT+MBFUN=aa
938 +A9 aa -à Same as AT+MBFUN=aa
940 940  
941 941  
941 +==== RS485 command timeout ====
942 942  
943 -==== **RS485 command timeout** ====
944 -
945 945  Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
946 946  
947 947  Default value: 0, range:  0 ~~ 5 seconds
948 948  
949 949  
950 -* **AT Command:**
948 +* AT Command:
951 951  
952 -(% class="box infomessage" %)
953 -(((
954 -**AT+CMDDLaa=hex(bb cc)**
955 -)))
950 +AT+CMDDLaa=hex(bb cc)
956 956  
957 -**Example:**
952 +Example:
958 958  
959 959  **AT+CMDDL1=1000** to send the open time to 1000ms
960 960  
961 961  
962 -* **Downlink Payload:**
957 +* Downlink Payload:
963 963  
964 964  0x AA aa bb cc
965 965  
966 966  Same as: AT+CMDDLaa=hex(bb cc)
967 967  
968 - **Example:**
963 + Example:
969 969  
970 - **0xAA 01 03 E8**  ~-~-> Same as **AT+CMDDL1=1000 ms**
965 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
971 971  
972 972  
968 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
973 973  
974 -==== **Uplink payload mode** ====
975 -
976 976  Define to use one uplink or multiple uplinks for the sampling.
977 977  
978 978  The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
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