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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... ... @@ -1,6 +1,10 @@ 1 -(% style="text-align:center" %) 2 -[[image:image-20240928101253-2.jpeg||height="603" width="603"]] 1 +(% aria-label="1653266934636-343.png image widget" contenteditable="false" role="region" tabindex="-1" %) 2 +((( 3 +(% data-widget="image" style="text-align:center" %) 4 +[[image:1653266934636-343.png||height="385" width="385"]](% title="Click and drag to resize" %) 3 3 6 +(% 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==||height="15" role="presentation" title="Click and drag to move" width="15"]] 7 +))) 4 4 5 5 6 6 ... ... @@ -8,7 +8,6 @@ 8 8 9 9 10 10 11 - 12 12 **Table of Contents:** 13 13 14 14 {{toc/}} ... ... @@ -132,16 +132,6 @@ 132 132 v1.0: Release 133 133 ))) 134 134 135 - 136 -== 1.7 Pin Definitions == 137 - 138 - 139 -The following diagram shows the V1.2 hardware version. 140 - 141 -[[image:image-20240925161141-1.jpeg||height="412" width="405"]] 142 - 143 -[[image:image-20240925161157-2.jpeg||height="367" width="545"]] 144 - 145 145 146 146 ))) 147 147 ))) ... ... @@ -568,74 +568,13 @@ 568 568 === 3.3.7 Uplink on Interrupt === 569 569 570 570 571 - 572 572 RS485-LN support external Interrupt uplink since hardware v1.2 release. 573 573 574 -(% 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"]] 566 +(% 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" %) 575 575 568 +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. 576 576 577 -==== 3.3.7.1 Set Interrupt Mode ==== 578 578 579 - 580 -Before using the interrupt function of the **INT** pin, users can set the interrupt triggering mode as required. 581 - 582 -(% style="color:blue" %)**AT command:** 583 - 584 -* (% style="color:#037691" %)**AT+INTMOD **(%%) ~/~/ Set the trigger interrupt mode 585 - 586 -* (% style="color:#037691" %)**AT+INTMOD=0 **(%%) ~/~/ Disable Interrupt 587 - 588 -* (% style="color:#037691" %)**AT+INTMOD=1 **(%%) ~/~/ Trigger by rising and falling edge 589 - 590 -* (% style="color:#037691" %)**AT+INTMOD=2 **(%%) ~/~/ Trigger by falling edge **(default)** 591 - 592 -* (% style="color:#037691" %)**AT+INTMOD=3 **(%%) ~/~/ Trigger by rising edge 593 - 594 -(% style="color:blue" %)**Downlink Commands: **(% style="color:#037691" %)**0x06** 595 - 596 -Format: Command Code (0x06) followed by 3 bytes. 597 - 598 -Example1: Downlink Payload: **06 00 00 01 **~/~/ AT+INTMOD=1 599 - 600 -Example2: Downlink Payload: **06 00 00 03 **~/~/AT+INTMOD=3 601 - 602 - 603 -==== 3.3.7.2 Practical application ==== 604 - 605 - 606 -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**(%%): 607 - 608 -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. 609 - 610 -(% style="color:red" %)**Note: The level that triggers the interrupt ranges from 3.3V to 24V. Generally, it is recommended to use less than 12V.** 611 - 612 -**Example:** 613 - 614 -* Use a dry contact to connect the (% style="color:blue" %)**INT**(%%) pin and (% style="color:blue" %)**VIN+**(%%) pin of the RS485-LN. 615 - 616 -When the dry contact is closed, INT and VIN+ conduct and INT is high. 617 - 618 -Disconnecting the dry contact, the level of the INT pin changes from high to low, triggering an interrupt (triggered along the falling edge), and the RS485-LN sends an uplink data. 619 - 620 -[[image:image-20240925174124-5.jpeg||height="439" width="703"]] 621 - 622 -* 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.) 623 - 624 -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. 625 - 626 -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 627 - 628 -high to low, at which time an interrupt is triggered (triggered along the falling edge), and the device will send an uplink data. 629 - 630 -[[image:image-20240925173243-4.jpeg||height="404" width="900"]] 631 - 632 -* Example of interrupt data in TTN. 633 - 634 -The first byte of the payload of the interrupted packet is (% style="color:blue" %)**0x81**(%%). 635 - 636 -[[image:image-20240925181010-1.png||height="348" width="953"]] 637 - 638 - 639 639 == 3.4 Uplink Payload == 640 640 641 641 ... ... @@ -804,21 +804,31 @@ 804 804 ))) 805 805 806 806 ((( 807 -(% style="color:blue" %)**Example 2:** (%%) 739 +(% style="color:blue" %)**Example 2:** (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**) 808 808 ))) 809 809 810 810 ((( 811 - CheckTTLSensorurn:743 +User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY** 812 812 ))) 813 813 814 814 ((( 747 + 748 +))) 749 + 815 815 ((( 816 -[[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** 817 817 ))) 754 + 755 + 818 818 ))) 819 819 758 +((( 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 +))) 820 820 821 821 763 + 822 822 ==== (% style="color:blue" %)**Set Payload version**(%%) ==== 823 823 824 824 ... ... @@ -1752,7 +1752,7 @@ 1752 1752 1. Check if Modbus-MTU return back the expected result to RS485-LN. 1753 1753 1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output. 1754 1754 1755 -[[image:image-202 40816112950-1.png||height="382" width="731"]]1697 +[[image:image-20221130104310-1.png||height="380" width="680"]] 1756 1756 1757 1757 1758 1758 Example Connection: ... ... @@ -1874,36 +1874,12 @@ 1874 1874 Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]] 1875 1875 1876 1876 1877 -== 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? == 1878 1878 1879 1879 1880 1880 It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] 1881 1881 1882 1882 1883 -== 7.3 Why can't customers see the device's data in the server when the data is too long? == 1884 - 1885 -This is due to the limitation of the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem. 1886 - 1887 -Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol 1888 - 1889 -[[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]] 1890 - 1891 -Example: 1892 - 1893 -[[image:image-20240620145456-1.png]] 1894 - 1895 -Please refer to the following command to fix DR 1896 - 1897 -AT+ADR=0 1898 - 1899 -AT+DR=3 1900 - 1901 -Downlink command: 1902 - 1903 -[[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]] 1904 - 1905 - 1906 - 1907 1907 = 8. Order Info = 1908 1908 1909 1909
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