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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... ... @@ -135,7 +135,8 @@ 135 135 v1.0: Release 136 136 ))) 137 137 138 - 138 + 139 +== 1.7 Pin definition == 139 139 ))) 140 140 ))) 141 141 ... ... @@ -281,19 +281,17 @@ 281 281 ))) 282 282 ))) 283 283 284 -==== 3.3.2.1 Configure UART settings for RS485 or TTLcommunication ====285 +==== 3.3.2.1 Configure UART settings for RS485 communication ==== 285 285 286 286 287 -RS485-LN can connect to eitherRS485sensorsorTTLsensor.Userneedtopecifywhat type of sensorneed to connect.288 +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 -To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are: 290 - 291 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %) 292 -|=(% style="width: 126px; background-color:#D9E2F3;color:#0070C0" %)((( 290 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %) 291 +|=(% style="width: 126px; background-color:#4F81BD;color:white" %)((( 293 293 **AT Commands** 294 -)))|=(% style="width: 187px; background-color:# D9E2F3;color:#0070C0" %)(((293 +)))|=(% style="width: 187px; background-color:#4F81BD;color:white" %)((( 295 295 **Description** 296 -)))|=(% style="width: 197px;background-color:# D9E2F3;color:#0070C0" %)(((295 +)))|=(% style="width: 197px;background-color:#4F81BD;color:white" %)((( 297 297 **Example** 298 298 ))) 299 299 |(% style="width:126px" %)((( ... ... @@ -356,8 +356,8 @@ 356 356 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. 357 357 ))) 358 358 359 -(% border="1" cellspacing=" 5" style="background-color:#f2f2f2; width:510px" %)360 -|=(% 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**358 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %) 359 +|=(% 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** 361 361 |(% style="width:122px" %)AT+CFGDEV|(% style="width:196px" %)((( 362 362 ((( 363 363 This command is used to configure the RS485/TTL devices; they won’t be used during sampling. ... ... @@ -573,10 +573,10 @@ 573 573 == 3.4 Uplink Payload == 574 574 575 575 576 -(% border="1" cellspacing=" 5" style="background-color:#f2f2f2; width:510px" %)577 -|(% style="background-color:# d9e2f3; color:#0070c0; width:70px" %)(((575 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %) 576 +|(% style="background-color:#4f81bd; color:white; width:70px" %)((( 578 578 **Size(bytes)** 579 -)))|(% style="background-color:# d9e2f3; color:#0070c0; width:80px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:360px" %)(((578 +)))|(% style="background-color:#4f81bd; color:white; width:80px" %)**1**|(% style="background-color:#4f81bd; color:white; width:360px" %)((( 580 580 **Length depends on the return from the commands** 581 581 ))) 582 582 |(% style="width:90px" %)((( ... ... @@ -738,31 +738,21 @@ 738 738 ))) 739 739 740 740 ((( 741 -(% style="color:blue" %)**Example 2:** (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)740 +(% style="color:blue" %)**Example 2:** (%%) 742 742 ))) 743 743 744 744 ((( 745 - Userin IoTserver send a downlinkcommand: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**744 +Check TTL Sensor return: 746 746 ))) 747 747 748 748 ((( 749 - 750 -))) 751 - 752 752 ((( 753 -((( 754 -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 +[[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" %) 755 755 ))) 756 - 757 - 758 758 ))) 759 759 760 -((( 761 - (% 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" %) 762 -))) 763 763 764 764 765 - 766 766 ==== (% style="color:blue" %)**Set Payload version**(%%) ==== 767 767 768 768 ... ... @@ -1388,10 +1388,10 @@ 1388 1388 To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**. 1389 1389 ))) 1390 1390 1391 -(% border="1" cellspacing=" 5" style="background-color:#f2f2f2; width:510px" %)1392 -|=(% style="width: 156px; background-color:# D9E2F3;color:#0070C0" %)(((1380 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %) 1381 +|=(% style="width: 156px; background-color:#4F81BD;color:white" %)((( 1393 1393 **Command example** 1394 -)))|=(% style="width: 355px; background-color:# D9E2F3;color:#0070C0" %)(((1383 +)))|=(% style="width: 355px; background-color:#4F81BD;color:white" %)((( 1395 1395 **Function** 1396 1396 ))) 1397 1397 |(% style="width:156px" %)((( ... ... @@ -1470,7 +1470,7 @@ 1470 1470 1471 1471 1472 1472 (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %) 1473 -|=(% style="width: 50px;background-color:# D9E2F3;color:#0070C0" %)**Button**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**1462 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**Button**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature** 1474 1474 |(% 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** 1475 1475 |(% style="width:50px" %)RST|(% style="width:361px" %)Reboot RS485 1476 1476 |(% style="width:50px" %)PRO|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]] ... ... @@ -1479,7 +1479,7 @@ 1479 1479 1480 1480 1481 1481 (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %) 1482 -|=(% style="width: 50px;background-color:# D9E2F3;color:#0070C0" %)**LEDs**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**1471 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**LEDs**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature** 1483 1483 |PWR|Always on if there is power 1484 1484 |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. 1485 1485 ... ... @@ -1696,7 +1696,7 @@ 1696 1696 1. Check if Modbus-MTU return back the expected result to RS485-LN. 1697 1697 1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output. 1698 1698 1699 -[[image:image-202 21130104310-1.png||height="380" width="680"]]1688 +[[image:image-20240816112950-1.png||height="382" width="731"]] 1700 1700 1701 1701 1702 1702 Example Connection: ... ... @@ -1818,12 +1818,36 @@ 1818 1818 Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]] 1819 1819 1820 1820 1821 -== 7.2 Why Ican't join TTN V3 in US915 /AU915 bands? ==1810 +== 7.2 Why customers can't join TTN V3 in US915 /AU915 bands? == 1822 1822 1823 1823 1824 1824 It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] 1825 1825 1826 1826 1816 +== 7.3 Why can't customers see the device's data in the server when the data is too long? == 1817 + 1818 +This is due to the limitation of the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem. 1819 + 1820 +Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol 1821 + 1822 +[[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]] 1823 + 1824 +Example: 1825 + 1826 +[[image:image-20240620145456-1.png]] 1827 + 1828 +Please refer to the following command to fix DR 1829 + 1830 +AT+ADR=0 1831 + 1832 +AT+DR=3 1833 + 1834 +Downlink command: 1835 + 1836 +[[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]] 1837 + 1838 + 1839 + 1827 1827 = 8. Order Info = 1828 1828 1829 1829
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