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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... ... @@ -135,16 +135,6 @@ 135 135 v1.0: Release 136 136 ))) 137 137 138 - 139 -== 1.7 Pin Definitions == 140 - 141 - 142 -The following diagram shows the V1.2 hardware version. 143 - 144 -[[image:image-20240925161141-1.jpeg||height="412" width="405"]] 145 - 146 -[[image:image-20240925161157-2.jpeg||height="367" width="545"]] 147 - 148 148 149 149 ))) 150 150 ))) ... ... @@ -293,15 +293,14 @@ 293 293 294 294 ==== 3.3.2.1 Configure UART settings for RS485 communication ==== 295 295 296 - 297 297 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: 298 298 299 -(% border="1" cellspacing=" 4" style="background-color:#f2f2f2; width:510px" %)300 -|=(% 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" %)((( 301 301 **AT Commands** 302 -)))|=(% style="width: 187px; background-color:# 4F81BD;color:white" %)(((291 +)))|=(% style="width: 187px; background-color:#D9E2F3;color:#0070C0" %)((( 303 303 **Description** 304 -)))|=(% style="width: 197px;background-color:# 4F81BD;color:white" %)(((293 +)))|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)((( 305 305 **Example** 306 306 ))) 307 307 |(% style="width:126px" %)((( ... ... @@ -364,8 +364,8 @@ 364 364 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. 365 365 ))) 366 366 367 -(% border="1" cellspacing=" 4" style="background-color:#f2f2f2; width:510px" %)368 -|=(% 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** 369 369 |(% style="width:122px" %)AT+CFGDEV|(% style="width:196px" %)((( 370 370 ((( 371 371 This command is used to configure the RS485/TTL devices; they won’t be used during sampling. ... ... @@ -571,75 +571,20 @@ 571 571 === 3.3.7 Uplink on Interrupt === 572 572 573 573 574 - 575 575 RS485-LN support external Interrupt uplink since hardware v1.2 release. 576 576 577 -(% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.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"]] 565 +(% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.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" %) 578 578 567 +Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet. 579 579 580 -==== 3.3.7.1 Set Interrupt Mode ==== 581 581 582 - 583 -Before using the interrupt function of the **INT** pin, users can set the interrupt triggering mode as required. 584 - 585 -(% style="color:blue" %)**AT command:** 586 - 587 -* (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode 588 - 589 -* (% style="color:#037691" %)**AT+INTMOD=0 **(%%) ~/~/ Disable Interrupt 590 - 591 -* (% style="color:#037691" %)**AT+INTMOD=1 **(%%) ~/~/ Trigger by rising and falling edge 592 - 593 -* (% style="color:#037691" %)**AT+INTMOD=2 **(%%) ~/~/ Trigger by falling edge **(default)** 594 - 595 -* (% style="color:#037691" %)**AT+INTMOD=3 **(%%) ~/~/ Trigger by rising edge 596 - 597 -(% style="color:blue" %)**Downlink Commands: **(% style="color:#037691" %)**0x06** 598 - 599 -Format: Command Code (0x06) followed by 3 bytes. 600 - 601 -Example1: Downlink Payload: **06 00 00 01 **~/~/ AT+INTMOD=1 602 - 603 -Example2: Downlink Payload: **06 00 00 03 **~/~/AT+INTMOD=3 604 - 605 - 606 -==== 3.3.7.2 Practical application ==== 607 - 608 - 609 -The following uses the default interrupt triggering mode (% style="color:blue" %)**(AT+INTMOD=2)**(%%) as an example to show the interrupt function of (% style="color:blue" %)**INT**(%%): 610 - 611 -When a high voltage is given to the INT pin and then the level of the (% style="color:blue" %)**INT**(%%) pin changes from high to low, the interrupt is triggered by a falling edge and the RS485-LN sends an uplink data. 612 - 613 -(% style="color:red" %)**Note: The voltage ranges from 3.3V to 24V. Generally, it is recommended to use less than 12V.** 614 - 615 -**Example:** 616 - 617 -* Use a dry contact to connect the (% style="color:blue" %)**INT**(%%) pin and (% style="color:blue" %)**VIN+**(%%) pin of the RS485-LN. 618 - 619 -When the dry contact is closed, INT and VIN+ conduct and INT is high. 620 - 621 -Disconnecting the dry contact, the level of the INT pin changes from high to low, triggering an interrupt (triggered by the falling edge along the interrupt), and the RS485-LN sends an uplink data. 622 - 623 -[[image:image-20240925164510-3.jpeg||height="414" width="656"]] 624 - 625 -* Use a regulated power supply or a wet contact to connect the 485-LN to trigger the interruption.(This section uses a regulated power supply as an example.) 626 - 627 -The positive pole of the stabilized power supply is connected to the (% style="color:blue" %)**INT**(%%) pin of RS485-LN, and the negative pole of the stabilized power supply is connected to the (% style="color:blue" %)**VIN-**(%%) pin of RS485-LN. 628 - 629 -When the regulated power supply is operating, a high voltage is given to the INT pin and the INT level is high. When the regulated power supply is turned off, the level of the INT pin changes from 630 - 631 -high to low, at which time an interrupt is triggered (triggered along the falling edge), and the device will send an uplink data. 632 - 633 -[[image:image-20240925173243-4.jpeg||height="404" width="900"]] 634 - 635 - 636 636 == 3.4 Uplink Payload == 637 637 638 638 639 -(% border="1" cellspacing=" 4" style="background-color:#f2f2f2; width:510px" %)640 -|(% 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" %)((( 641 641 **Size(bytes)** 642 -)))|(% 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" %)((( 643 643 **Length depends on the return from the commands** 644 644 ))) 645 645 |(% style="width:90px" %)((( ... ... @@ -801,21 +801,31 @@ 801 801 ))) 802 802 803 803 ((( 804 -(% style="color:blue" %)**Example 2:** (%%) 738 +(% style="color:blue" %)**Example 2:** (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**) 805 805 ))) 806 806 807 807 ((( 808 - CheckTTLSensorurn:742 +User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY** 809 809 ))) 810 810 811 811 ((( 746 + 747 +))) 748 + 812 812 ((( 813 -[[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** 814 814 ))) 753 + 754 + 815 815 ))) 816 816 757 +((( 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 +))) 817 817 818 818 762 + 819 819 ==== (% style="color:blue" %)**Set Payload version**(%%) ==== 820 820 821 821 ... ... @@ -1441,10 +1441,10 @@ 1441 1441 To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**. 1442 1442 ))) 1443 1443 1444 -(% border="1" cellspacing=" 4" style="background-color:#f2f2f2; width:510px" %)1445 -|=(% 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" %)((( 1446 1446 **Command example** 1447 -)))|=(% style="width: 355px; background-color:# 4F81BD;color:white" %)(((1391 +)))|=(% style="width: 355px; background-color:#D9E2F3;color:#0070C0" %)((( 1448 1448 **Function** 1449 1449 ))) 1450 1450 |(% style="width:156px" %)((( ... ... @@ -1523,7 +1523,7 @@ 1523 1523 1524 1524 1525 1525 (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %) 1526 -|=(% 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** 1527 1527 |(% 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** 1528 1528 |(% style="width:50px" %)RST|(% style="width:361px" %)Reboot RS485 1529 1529 |(% style="width:50px" %)PRO|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]] ... ... @@ -1532,7 +1532,7 @@ 1532 1532 1533 1533 1534 1534 (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %) 1535 -|=(% 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** 1536 1536 |PWR|Always on if there is power 1537 1537 |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. 1538 1538 ... ... @@ -1749,7 +1749,7 @@ 1749 1749 1. Check if Modbus-MTU return back the expected result to RS485-LN. 1750 1750 1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output. 1751 1751 1752 -[[image:image-202 40816112950-1.png||height="382" width="731"]]1696 +[[image:image-20221130104310-1.png||height="380" width="680"]] 1753 1753 1754 1754 1755 1755 Example Connection: ... ... @@ -1871,36 +1871,12 @@ 1871 1871 Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]] 1872 1872 1873 1873 1874 -== 7.2 Why customerscan't join TTN V3 in US915 /AU915 bands? ==1818 +== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? == 1875 1875 1876 1876 1877 1877 It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] 1878 1878 1879 1879 1880 -== 7.3 Why can't customers see the device's data in the server when the data is too long? == 1881 - 1882 -This is due to the limitation of the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem. 1883 - 1884 -Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol 1885 - 1886 -[[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]] 1887 - 1888 -Example: 1889 - 1890 -[[image:image-20240620145456-1.png]] 1891 - 1892 -Please refer to the following command to fix DR 1893 - 1894 -AT+ADR=0 1895 - 1896 -AT+DR=3 1897 - 1898 -Downlink command: 1899 - 1900 -[[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]] 1901 - 1902 - 1903 - 1904 1904 = 8. Order Info = 1905 1905 1906 1906
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