Last modified by Bei Jinggeng on 2025/01/10 15:06
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From version < 129.1 >
edited by Mengting Qiu
on 2024/09/26 17:30
To version < 112.1 >
edited by Bei Jinggeng
on 2024/06/20 14:54
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Change comment: Uploaded new attachment "image-20240620145456-1.png", version {1}

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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  )))
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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"]]
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" %)​
578 578  
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.
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 level that triggers the interrupt 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 along the falling edge), and the RS485-LN sends an uplink data.
622 -
623 -[[image:image-20240925174124-5.jpeg||height="439" width="703"]]
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 -* Example of interrupt data in TTN.
636 -
637 -The first byte of the payload of the interrupted packet is (% style="color:blue" %)**0x81**(%%).
638 -
639 -[[image:image-20240925181010-1.png||height="348" width="953"]]
640 -
641 -
642 642  == 3.4 Uplink Payload ==
643 643  
644 644  
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807 807  )))
808 808  
809 809  (((
810 -(% style="color:blue" %)**Example 2:**  (%%)
739 +(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
811 811  )))
812 812  
813 813  (((
814 -Check TTL Sensor return:
743 +User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
815 815  )))
816 816  
817 817  (((
747 +
748 +)))
749 +
818 818  (((
819 -[[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**
820 820  )))
754 +
755 +
821 821  )))
822 822  
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 +)))
823 823  
824 824  
763 +
825 825  ==== (% style="color:blue" %)**Set Payload version**(%%) ====
826 826  
827 827  
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1755 1755  1. Check if Modbus-MTU return back the expected result to RS485-LN.
1756 1756  1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1757 1757  
1758 -[[image:image-20240816112950-1.png||height="382" width="731"]]
1697 +[[image:image-20221130104310-1.png||height="380" width="680"]]
1759 1759  
1760 1760  
1761 1761  Example Connection:
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1877 1877  Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1878 1878  
1879 1879  
1880 -== 7.2 Why customers can't join TTN V3 in US915 /AU915 bands? ==
1819 +== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1881 1881  
1882 1882  
1883 1883  It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1884 1884  
1885 1885  
1886 -== 7.3 Why can't customers see the device's data in the server when the data is too long? ==
1887 -
1888 -This is due to the limitation of the lorawan protocol, and the fixed DR needs to be adjusted to improve this problem.
1889 -
1890 -Please refer to the following link for the number of bytes limited by different frequencies and different DRs in the lorawan protocol
1891 -
1892 -[[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]]
1893 -
1894 -Example:
1895 -
1896 -[[image:image-20240620145456-1.png]]
1897 -
1898 -Please refer to the following command to fix DR
1899 -
1900 -AT+ADR=0
1901 -
1902 -AT+DR=3
1903 -
1904 -Downlink command:
1905 -
1906 -[[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]]
1907 -
1908 -
1909 -
1910 1910  = 8. Order Info =
1911 1911  
1912 1912  
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