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Last modified by Mengting Qiu on 2025/07/03 18:55
From version 228.2
edited by Mengting Qiu
on 2025/06/16 08:51
Change comment: There is no comment for this version
To version 226.2
edited by Mengting Qiu
on 2025/06/13 17:10
Change comment: There is no comment for this version

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1024 1024  [[image:image-20240226111928-1.png]]
1025 1025  
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1027 -== (% data-sider-select-id="765eceff-93b1-40ee-800b-b7b7d022ef8a" %)6.5 (%%)What is the Downlink Command Format for NB Devices? ==
1027 +== (% data-sider-select-id="765eceff-93b1-40ee-800b-b7b7d022ef8a" %)6.5 What is the Downlink Command by the NB device?(%%) ==
1028 1028  
1029 1029  
1030 1030  Firstly, it is recommended that users upgrade the firmware of the -NB node to the latest version, as the processing method for downlink commands varies depending on the firmware version. Below, we will introduce the latest downlink command format.
1031 -(% style="color:red" %)**Note: **
1032 1032  
1032 +(% data-sider-select-id="bb6e9353-0c3f-473c-938d-4b416c9a03e6" %)
1033 +=== UDP: ===
1033 1033  
1034 -[[image:1750035004731-376.png]]
1035 1035  
1036 +(% data-sider-select-id="14a4790e-7faa-4508-a4dd-7605a53f1cb3" %)
1037 +Its downlink command is the same as the AT command, but brackets are required.
1038 +Example:
1036 1036  
1037 -(% data-sider-select-id="bb6e9353-0c3f-473c-938d-4b416c9a03e6" %)
1038 -=== **UDP Protocol:** ===
1040 +{AT+TDC=300}
1039 1039  
1040 -Only supports valid **HEX-format downlink commands** corresponding to AT command
1041 1041  
1042 1042  (% data-sider-select-id="90b80f1a-e924-4c8a-afc5-4429e019a657" %)
1043 1043  === MQTT: ===
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