<
From version < 27.1 >
edited by Mengting Qiu
on 2023/11/24 14:28
To version < 28.2 >
edited by Mengting Qiu
on 2023/11/24 14:37
>
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9 9  
10 10  = 1. introduction =
11 11  
12 -This chapter describes switch LoRaWAN server by rejoin feature.
12 +This chapter describes how to switch LoRaWAN server by rejoin feature.
13 13  
14 14  
15 15  = 2. What is the rejoin feature? =
16 16  
17 -rejoin feature is that if the ACK packet sent by the platform to the node is not received within the set time range, the offline detection will be started.
17 +Rejoin feature is that if the ACK packet sent by the platform to the node is not received within the set time range, the offline detection will be started.
18 18  
19 19  == 2.1offline rejoining (LWS007) ==
20 20  
21 -
22 22  (% style="color:blue" %)**AT Command: AT+DDETECT**
23 23  
24 24  AT+DDETECT=<Flag>,<ACK_Timout_1>,<ACK_Timout_2> (Default Value: AT+DDETECT=1,1440,2880)
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65 65  
66 66  * **Example 1:** Downlink Payload: 320105A00B40  ~/~/ Set AT+DDETECT=1,1440,2880
67 67  
68 -*
67 +*
69 69  ** 0x01** : Flag**
70 70  
71 71   **0x05A0 **: ACK_Timout_1 : 1440minutes (24 hours)
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78 78  
79 79  Feature: Change LoRaWAN End Node Transmit Interval.
80 80  
81 -
82 82  (% style="color:blue" %)**AT Command: AT+TDC**
83 83  
84 84  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:727.222px" %)
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176 176  
177 177  [[image:image-20231124115256-11.png||height="409" width="767"]]
178 178  
177 +After the delivery is successful, the node is connected to the network again and factory Settings are restored.
179 179  
179 +[[image:image-20231124141041-1.png||height="395" width="801"]]
180 +
181 +[[image:image-20231124141141-2.png||height="460" width="802"]]
182 +
183 +
180 180  * (% style="color:blue" %)**If the device has other configurations to keep, users can also choose to configure the default TDC and default offline detection time separately.**
181 181  
186 +[[image:image-20231124142829-4.png||height="451" width="626"]]
182 182  
183 183  
189 +[[image:image-20231124142645-3.png||height="452" width="622"]]
184 184  
185 185  
192 +(% style="color:red" %)**Note: To set these two commands separately, users must restore the default offline detection time before configuring the default TDC time.**
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187 187  
188 188  
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200 +
193 193  
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