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Last modified by Mengting Qiu on 2025/07/03 18:49
From version 144.4
edited by Mengting Qiu
on 2025/07/03 18:37
Change comment: There is no comment for this version
To version 144.13
edited by Mengting Qiu
on 2025/07/03 18:43
Change comment: There is no comment for this version

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1020 1020  //Example~:// For the S31-CB's uplink interval modification (AT+TDC=900):
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1022 -* HEX format: (% style="color:blue" %)**01000384**(%%)  ~/~/ There are no Spaces. 0x0384(H)=900(D), that is, modify TDC to 900 seconds.
1023 -* JSON format: (% style="color:blue" %)**{AT+TDC=900}**(%%)**       **~/~/ The correct format is (% style="color:blue" %)**{AT Command}**(%%). No extra characters other than valid AT commands can be added within {}.
1022 +Downlink command: (% style="color:blue" %)**01000384**(%%)  ~/~/ There are no Spaces. 0x0384(H)=900(D), that is, modify TDC to 900 seconds.
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1025 -(% style="color:red" %)**Note:**
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1027 -(% style="color:red" %)**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.**
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1029 -(% style="color:red" %)**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.**
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1031 -(% style="color:red" %)**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.**
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1033 -
1034 1034  ==== **2. JSON-format ** ====
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1036 -All -CB nodes support downlink configuration modification using (% style="color:blue" %)**0**(%%)JSON format templates.
1027 +===== **2. 1 JSON format template.** =====
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1029 +All -CB nodes support downlink configuration modification using (% style="color:blue" %)**JSON format templates.**
1030 +
1038 1038  We can use templates to configure multiple commands AT once. Users only need to modify the parameters of the required AT commands in the correct template for each device.
1039 1039  Template.
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1076 +===== **2.2 Support sending json format commands separately** =====
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1078 +Some models of nodes support sending json format commands separately：(% style="color:blue" %)**RS485-CB, LDS25-CB, CS01-CB, SDI-12-CB, SW3L-CB, WL03A-CB, PS-CB**
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1080 +//Example~:// For the PS-CB's uplink interval modification (AT+TDC=900):
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1082 +Downlink command:  (% style="color:blue" %)**{AT+TDC=900}**(%%)**       **~/~/ The correct format is (% style="color:blue" %)**{AT Command}**(%%). No extra characters other than valid AT commands can be added within {}.
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