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Last modified by Mengting Qiu on 2025/07/03 18:49
From version 143.6
edited by Mengting Qiu
on 2025/07/03 18:29
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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1019 1019  
1020 1020  //Example~:// For the S31-CB's uplink interval modification (AT+TDC=900):
1021 1021  
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.
1024 1024  
1025 -(% style="color:red" %)**Note:**
1026 1026  
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.**
1028 -
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.**
1030 -
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.**
1032 -
1033 -
1034 1034  ==== **2. JSON-format ** ====
1035 1035  
1036 -**​​​​​​​All -CB nodes support downlink configuration modification using JSON format templates.
1037 -Take the template of DDS75-CB as an example:**
1027 +===== **2. 1 JSON format template.** =====
1038 1038  
1039 -**Template for Batch Configuration:**
1029 +All -CB nodes support downlink configuration modification using (% style="color:blue" %)**JSON format templates.**
1040 1040  
1041 -We can also 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.
1042 -Template:
1031 +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.
1032 +Template.
1043 1043  
1034 +Take the template of DDS75-CB as an example:
1035 +
1044 1044  {
1045 1045  "AT+SERVADDR":"119.91.62.30,1882",
1046 1046  "AT+CLIENT":"JwcXKjQBNhQ2JykDDAA5Ahs",
... ... @@ -1053,17 +1053,22 @@
1053 1053  "AT+APN":"NULL",
1054 1054  "AT+5VT":"0",
1055 1055  "AT+PRO":"3,5",
1056 -"AT+TR":"900",
1057 -"AT+NOUD":"0",
1048 +"AT+TR":"15",
1049 +"AT+NOUD":"8",
1058 1058  "AT+CSQTIME":"5",
1059 -"AT+DNSTIMER":"0",
1051 +"AT+GDNS":"0",
1060 1060  "AT+TLSMOD":"0,0",
1061 1061  "AT+MQOS":"0",
1062 -"AT+TEMPALARM1":"0",
1063 -"AT+TEMPALARM2":"10",
1064 -"AT+TEMPALARM3":"0"
1054 +"AT+IPTYPE":"0",
1055 +"AT+GTDC":"0",
1056 +"AT+GNSST":"10",
1057 +"AT+GPS":"0"
1065 1065  }
1066 1066  
1060 +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.
1061 +
1062 +[[image:1751538862245-924.png]]
1063 +
1067 1067  **Instructions for Using the Template:**
1068 1068  
1069 1069  1. Modify the parameters for each AT command in the template as needed.
... ... @@ -1076,6 +1076,16 @@
1076 1076  
1077 1077  
1078 1078  
1076 +===== **2.2 Support sending json format commands separately** =====
1077 +
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**
1079 +
1080 +//Example~:// For the PS-CB's uplink interval modification (AT+TDC=900):
1081 +
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 {}.
1083 +
1084 +
1085 +
1079 1079  == 7.4 What if the signal is good but the domain name resolution fails? ==
1080 1080  
1081 1081  
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