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283 283  
284 284  ==== 3.3.2.1 Configure UART settings for RS485 communication ====
285 285  
286 +
286 286  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:
287 287  
288 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
289 -|=(% style="width: 126px; background-color:#D9E2F3;color:#0070C0" %)(((
289 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
290 +|=(% style="width: 126px; background-color:#4F81BD;color:white" %)(((
290 290  **AT Commands**
291 -)))|=(% style="width: 187px; background-color:#D9E2F3;color:#0070C0" %)(((
292 +)))|=(% style="width: 187px; background-color:#4F81BD;color:white" %)(((
292 292  **Description**
293 -)))|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)(((
294 +)))|=(% style="width: 197px;background-color:#4F81BD;color:white" %)(((
294 294  **Example**
295 295  )))
296 296  |(% style="width:126px" %)(((
... ... @@ -353,8 +353,8 @@
353 353  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.
354 354  )))
355 355  
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**
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**
358 358  |(% style="width:122px" %)AT+CFGDEV|(% style="width:196px" %)(((
359 359  (((
360 360  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
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570 570  == 3.4 Uplink Payload ==
571 571  
572 572  
573 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
574 -|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)(((
574 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
575 +|(% style="background-color:#4f81bd; color:white; width:70px" %)(((
575 575  **Size(bytes)**
576 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:360px" %)(((
577 +)))|(% style="background-color:#4f81bd; color:white; width:80px" %)**1**|(% style="background-color:#4f81bd; color:white; width:360px" %)(((
577 577  **Length depends on the return from the commands**
578 578  )))
579 579  |(% style="width:90px" %)(((
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735 735  )))
736 736  
737 737  (((
738 -(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
739 +(% style="color:blue" %)**Example 2:**  (%%)
739 739  )))
740 740  
741 741  (((
742 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
743 +Check TTL Sensor return:
743 743  )))
744 744  
745 745  (((
746 -
747 -)))
748 -
749 749  (((
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**
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" %)​
752 752  )))
753 -
754 -
755 755  )))
756 756  
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 -)))
760 760  
761 761  
762 -
763 763  ==== (% style="color:blue" %)**Set Payload version**(%%) ====
764 764  
765 765  
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1385 1385  To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1386 1386  )))
1387 1387  
1388 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
1389 -|=(% style="width: 156px; background-color:#D9E2F3;color:#0070C0" %)(((
1379 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1380 +|=(% style="width: 156px; background-color:#4F81BD;color:white" %)(((
1390 1390  **Command example**
1391 -)))|=(% style="width: 355px; background-color:#D9E2F3;color:#0070C0" %)(((
1382 +)))|=(% style="width: 355px; background-color:#4F81BD;color:white" %)(((
1392 1392  **Function**
1393 1393  )))
1394 1394  |(% style="width:156px" %)(((
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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:#D9E2F3;color:#0070C0" %)**Button**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
1461 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**Button**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1471 1471  |(% 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**
1472 1472  |(% style="width:50px" %)RST|(% style="width:361px" %)Reboot RS485
1473 1473  |(% style="width:50px" %)PRO|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
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1476 1476  
1477 1477  
1478 1478  (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1479 -|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**LEDs**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
1470 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**LEDs**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1480 1480  |PWR|Always on if there is power
1481 1481  |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.
1482 1482  
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1693 1693  1. Check if Modbus-MTU return back the expected result to RS485-LN.
1694 1694  1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1695 1695  
1696 -[[image:image-20221130104310-1.png||height="380" width="680"]]
1687 +[[image:image-20240816112950-1.png||height="382" width="731"]]
1697 1697  
1698 1698  
1699 1699  Example Connection:
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1815 1815  Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1816 1816  
1817 1817  
1818 -== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1809 +== 7.2 Why customers can't join TTN V3 in US915 /AU915 bands? ==
1819 1819  
1820 1820  
1821 1821  It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1822 1822  
1823 1823  
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 +
1824 1824  = 8. Order Info =
1825 1825  
1826 1826  
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