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Last modified by Mengting Qiu on 2025/07/17 10:51
From version 234.1
edited by Mengting Qiu
on 2025/07/17 10:51
Change comment: There is no comment for this version
To version 231.7
edited by Mengting Qiu
on 2025/07/03 18:53
Change comment: There is no comment for this version

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1049 1049  
1050 1050  //Example~:// For the S31-NB's uplink interval modification (AT+TDC=900):
1051 1051  
1052 -Downlink command:  (% style="color:blue" %)**01000384**(%%)  ~/~/ There are no Spaces. 0x0384(H)=900(D), that is, modify TDC to 900 seconds.
1052 +* HEX format: (% style="color:blue" %)**01000384**(%%)  ~/~/ There are no Spaces. 0x0384(H)=900(D), that is, modify TDC to 900 seconds.
1053 +* 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 {}.
1053 1053  
1055 +(% style="color:red" %)**Note:**
1056 +
1057 +(% 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.**
1058 +
1059 +(% 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.**
1060 +
1061 +(% 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.**
1062 +
1054 1054  [[image:1750035004731-376.png||height="276" width="557"]]
1055 1055  
1056 1056  
... ... @@ -1058,12 +1058,12 @@
1058 1058  
1059 1059  ===== **2. 1 JSON format template.** =====
1060 1060  
1061 -All -NB nodes support downlink configuration modification using (% style="color:blue" %)**JSON format templates.**
1070 +All -CB nodes support downlink configuration modification using (% style="color:blue" %)**JSON format templates.**
1062 1062  
1063 1063  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.
1064 1064  Template.
1065 1065  
1066 -Take the template of D2x-NB as an example:
1075 +Take the template of D2x-CB as an example:
1067 1067  
1068 1068  {
1069 1069  "AT+SERVADDR":"119.91.62.30,1882",
... ... @@ -1088,11 +1088,6 @@
1088 1088  "AT+TEMPALARM3":"0"
1089 1089  }
1090 1090  
1091 -Explanations of two special commands in the template: AT+TR (set the detection interval: 0 ~~ 255 minutes) and AT+NOUD (set the number of groups) correspond to parameters in AT+CLOCKLOG.
1092 -
1093 -[[image:1751538862245-924.png]]
1094 -
1095 -
1096 1096  **Instructions for Using the Template:**
1097 1097  
1098 1098  1. Modify the parameters for each AT command in the template as needed.
... ... @@ -1107,11 +1107,11 @@
1107 1107  
1108 1108  ===== **2.2 Support sending json format commands separately** =====
1109 1109  
1110 -Some models of nodes support sending json format commands separately：(% style="color:blue" %)**RS485-NB, LDS25-NB, CS01-NB, SDI-12-NB, SW3L-NB, WL03A-NB, PS-NB, LTC2-NB.**
1114 +Some models of nodes support sending json format commands separately：(% style="color:blue" %)**J**(%%)**RS485-NB, LDS25-NB, CS01-NB, SDI-12-NB, SW3L-NB, WL03A-NB, PS-NB, LTC2-NB.**
1111 1111  
1112 -//Example~:// For the PS-NB's uplink interval modification (AT+TDC=900):
1116 +//Example~:// For the PS-CB's uplink interval modification (AT+TDC=900):
1113 1113  
1114 -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 {}.
1118 +Downlink command:  (% style="color:blue" %)**J**(%%)**       **~/~/ The correct format is (% style="color:blue" %)**J**(%%) **{AT Command}**. No extra characters other than valid AT commands can be added within {}.
1115 1115  
1116 1116  (% style="color:red" %)**Note:**
1117 1117  
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