Last modified by Bei Jinggeng on 2025/01/10 15:06
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From version < 117.1 >
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1 -XWiki.ting
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283 283  
284 284  ==== 3.3.2.1 Configure UART settings for RS485 communication ====
285 285  
286 -
287 287  To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. The related commands for UART settings are:
288 288  
289 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
290 -|=(% style="width: 126px; background-color:#4F81BD;color:white" %)(((
288 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
289 +|=(% style="width: 126px; background-color:#D9E2F3;color:#0070C0" %)(((
291 291  **AT Commands**
292 -)))|=(% style="width: 187px; background-color:#4F81BD;color:white" %)(((
291 +)))|=(% style="width: 187px; background-color:#D9E2F3;color:#0070C0" %)(((
293 293  **Description**
294 -)))|=(% style="width: 197px;background-color:#4F81BD;color:white" %)(((
293 +)))|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)(((
295 295  **Example**
296 296  )))
297 297  |(% style="width:126px" %)(((
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354 354  Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
355 355  )))
356 356  
357 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
358 -|=(% style="width: 122px; background-color:#4F81BD;color:white" %)**AT Commands**|=(% style="width: 198px; background-color:#4F81BD;color:white" %)**Description**|=(% style="width: 190px;background-color:#4F81BD;color:white" %)**Example**
356 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
357 +|=(% style="width: 122px; background-color:#D9E2F3;color:#0070C0" %)**AT Commands**|=(% style="width: 198px; background-color:#D9E2F3;color:#0070C0" %)**Description**|=(% style="width: 190px;background-color:#D9E2F3;color:#0070C0" %)**Example**
359 359  |(% style="width:122px" %)AT+CFGDEV|(% style="width:196px" %)(((
360 360  (((
361 361  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
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571 571  == 3.4 Uplink Payload ==
572 572  
573 573  
574 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
575 -|(% style="background-color:#4f81bd; color:white; width:70px" %)(((
573 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
574 +|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)(((
576 576  **Size(bytes)**
577 -)))|(% style="background-color:#4f81bd; color:white; width:80px" %)**1**|(% style="background-color:#4f81bd; color:white; width:360px" %)(((
576 +)))|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:360px" %)(((
578 578  **Length depends on the return from the commands**
579 579  )))
580 580  |(% style="width:90px" %)(((
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736 736  )))
737 737  
738 738  (((
739 -(% style="color:blue" %)**Example 2:**  (%%)
738 +(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
740 740  )))
741 741  
742 742  (((
743 -Check TTL Sensor return:
742 +User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
744 744  )))
745 745  
746 746  (((
746 +
747 +)))
748 +
747 747  (((
748 -[[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/1654132684752-193.png?rev=1.1||alt="1654132684752-193.png"]](% title="Click and drag to resize" %)​
750 +(((
751 +RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:  **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
749 749  )))
753 +
754 +
750 750  )))
751 751  
757 +(((
758 + (% aria-label="1654159460680-153.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654159460680-153.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
759 +)))
752 752  
753 753  
762 +
754 754  ==== (% style="color:blue" %)**Set Payload version**(%%) ====
755 755  
756 756  
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1376 1376  To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1377 1377  )))
1378 1378  
1379 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1380 -|=(% style="width: 156px; background-color:#4F81BD;color:white" %)(((
1388 +(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
1389 +|=(% style="width: 156px; background-color:#D9E2F3;color:#0070C0" %)(((
1381 1381  **Command example**
1382 -)))|=(% style="width: 355px; background-color:#4F81BD;color:white" %)(((
1391 +)))|=(% style="width: 355px; background-color:#D9E2F3;color:#0070C0" %)(((
1383 1383  **Function**
1384 1384  )))
1385 1385  |(% style="width:156px" %)(((
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1458 1458  
1459 1459  
1460 1460  (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1461 -|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**Button**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1470 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Button**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
1462 1462  |(% style="width:50px" %)ACT|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1463 1463  |(% style="width:50px" %)RST|(% style="width:361px" %)Reboot RS485
1464 1464  |(% style="width:50px" %)PRO|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
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1467 1467  
1468 1468  
1469 1469  (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1470 -|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**LEDs**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1479 +|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**LEDs**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
1471 1471  |PWR|Always on if there is power
1472 1472  |SYS|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
1473 1473  
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1684 1684  1. Check if Modbus-MTU return back the expected result to RS485-LN.
1685 1685  1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1686 1686  
1687 -[[image:image-20240816112950-1.png||height="382" width="731"]]
1696 +[[image:image-20221130104310-1.png||height="380" width="680"]]
1688 1688  
1689 1689  
1690 1690  Example Connection:
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1806 1806  Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1807 1807  
1808 1808  
1809 -== 7.2 Why customers can't join TTN V3 in US915 /AU915 bands? ==
1818 +== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1810 1810  
1811 1811  
1812 1812  It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1813 1813  
1814 1814  
1815 -== 7.3 Why can't customers see the device's data in the server when the data is too long? ==
1816 -
1817 -This is due to the limitation of the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem.
1818 -
1819 -Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1820 -
1821 -[[lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf>>url:https://lora-alliance.org/wp-content/uploads/2021/05/RP002-1.0.3-FINAL-1.pdf]]
1822 -
1823 -Example:
1824 -
1825 -[[image:image-20240620145456-1.png]]
1826 -
1827 -Please refer to the following command to fix DR
1828 -
1829 -AT+ADR=0
1830 -
1831 -AT+DR=3
1832 -
1833 -Downlink command:
1834 -
1835 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate>>http://wiki.dragino.com/xwiki/bin/view/Main/End%20Device%20AT%20Commands%20and%20Downlink%20Command/#H7.4DataRate]]
1836 -
1837 -
1838 -
1839 1839  = 8. Order Info =
1840 1840  
1841 1841  
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