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Last modified by Mengting Qiu on 2025/06/18 15:53
From version 139.1
edited by Edwin Chen
on 2025/01/22 00:02
Change comment: There is no comment for this version
To version 141.5
edited by Mengting Qiu
on 2025/06/16 10:12
Change comment: There is no comment for this version

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1 -XWiki.Edwin
1 +XWiki.ting
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723 723  Note:The port for the COAP protocol has been fixed to 5683
724 724  
725 725  
726 -* AT+URL1=11,"i"
727 -* AT+URL2=11,"Needs to be consistent with the CoAP endpoint URL in the platform"
726 +* AT+URI1=11,"i"
727 +* AT+URI2=11,"Needs to be consistent with the CoAP endpoint URL in the platform"
728 728  *
729 729  
730 730  -CB devices using a (% style="color:red" %)**BG95-M2**(%%) module, you need to configure (% style="color:red" %)**TWO**(%%) URL commands,
... ... @@ -731,8 +731,8 @@
731 731  
732 732  e.g.
733 733  
734 -* AT+URL1=11, "i"
735 -* AT+URL2=11,"faaaa241f-af4a-b780-4468-c671bb574858"
734 +* AT+URI1=11, "i"
735 +* AT+URI2=11,"faaaa241f-af4a-b780-4468-c671bb574858"
736 736  
737 737  [[image:https://wiki.dragino.com/xwiki/bin/download/Main/General%20Configure%20to%20Connect%20to%20IoT%20server%20for%20-NB%20%26%20-NS%20NB-IoT%20models/WebHome/image-20240729172500-14.png?width=700&height=403&rev=1.1||alt="image-20240729172500-14.png" height="413" width="718"]]
738 738  
... ... @@ -997,21 +997,40 @@
997 997  [[image:image-20240820113015-60.png]]
998 998  
999 999  
1000 -== (% data-sider-select-id="765eceff-93b1-40ee-800b-b7b7d022ef8a" %)7.3 What is the Downlink Command by the -CB device?(%%) ==
1000 +== (% data-sider-select-id="765eceff-93b1-40ee-800b-b7b7d022ef8a" %)7.3 (%%)What is the Downlink Command Format for CB Devices? ==
1001 1001  
1002 -(% data-sider-select-id="bb6e9353-0c3f-473c-938d-4b416c9a03e6" %)
1003 -=== UDP: ===
1004 1004  
1005 -(% data-sider-select-id="14a4790e-7faa-4508-a4dd-7605a53f1cb3" %)
1006 -Its downlink command is the same as the AT command, but brackets are required.
1007 -Example:
1003 +Firstly, it is recommended that users upgrade the firmware of the -CB 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.
1008 1008  
1009 -{AT+TDC=300}
1005 +=== **UDP Protocol:** ===
1010 1010  
1007 +Only supports valid **HEX-format downlink commands** corresponding to AT command.
1011 1011  
1012 -(% data-sider-select-id="90b80f1a-e924-4c8a-afc5-4429e019a657" %)
1013 -=== MQTT: ===
1009 +Take the AT+TDC command of S31-CB as an example, that is, only the valid HEX format downstream command corresponding to the AT+TDC command can be used:
1010 +Downward format: (% style="color:blue" %)**01000384**(%%)  ~/~/ There are no Spaces. 0x0384(H)=900(D), that is, modify TDC to 900 seconds.
1014 1014  
1012 +[[image:1750039871468-460.png||height="299" width="600"]]
1013 +
1014 +=== **MQTT Protocol:** ===
1015 +
1016 +Supports both **JSON-format** and **HEX-format** downlink commands (corresponding to AT commands).
1017 +
1018 +//Example~:// For the S31-CB's uplink interval modification (AT+TDC=900):
1019 +
1020 +* HEX format: (% style="color:blue" %)**01000384**(%%)  ~/~/ There are no Spaces. 0x0384(H)=900(D), that is, modify TDC to 900 seconds.
1021 +* JSON format: (% style="color:blue" %)**01{AT+TDC=900}**(%%)**{AT+TDC=900}       **~/~/ The correct format is **{AT Command}**. No extra characters other than valid AT commands can be added within {}.
1022 +
1023 +**Note:**
1024 +
1025 +**~1. Only when the correct and valid download command is used and the format is correct can the device be configured through the download command. Invalid download content cannot be processed by the device and will be automatically restarted.**
1026 +
1027 +**2. Devices designed with downlink commands can utilize different downlink formats (e.g., JSON or HEX) for configuration. However, regardless of the format, the functionality is strictly limited to the downlink command specifications described in the user manual's AT command explanation.**
1028 +
1029 +**For example, the HEX-format downlink command corresponding to AT+TDC can only be used to configure TDC and cannot be used for queries. There is no HEX-format downlink command equivalent to AT+TDC=? , so querying TDC via downlink is not supported.**
1030 +
1031 +
1032 +
1033 +
1015 1015  Json：
1016 1016  
1017 1017  The Json format in MQTT mode needs to be configured with all commands.
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