Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
Last modified by Bei Jinggeng on 2025/01/10 15:06
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... ... @@ -736,21 +736,31 @@ 736 736 ))) 737 737 738 738 ((( 739 -(% style="color:blue" %)**Example 2:** (%%) 739 +(% style="color:blue" %)**Example 2:** (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**) 740 740 ))) 741 741 742 742 ((( 743 - CheckTTLSensorurn:743 +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 ((( 747 + 748 +))) 749 + 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" %) 751 +((( 752 +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 ))) 754 + 755 + 750 750 ))) 751 751 758 +((( 759 + (% 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" %) 760 +))) 752 752 753 753 763 + 754 754 ==== (% style="color:blue" %)**Set Payload version**(%%) ==== 755 755 756 756 ... ... @@ -1684,7 +1684,7 @@ 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-202 40816112950-1.png||height="382" width="731"]]1697 +[[image:image-20221130104310-1.png||height="380" width="680"]] 1688 1688 1689 1689 1690 1690 Example Connection: ... ... @@ -1806,36 +1806,12 @@ 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 customerscan't join TTN V3 in US915 /AU915 bands? ==1819 +== 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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