Last modified by Bei Jinggeng on 2025/01/10 15:06
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From version < 110.1 >
edited by Bei Jinggeng
on 2023/12/26 15:08
To version < 126.1 >
edited by Mengting Qiu
on 2024/09/25 17:53
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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 +
138 138  
139 139  )))
140 140  )))
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283 283  
284 284  ==== 3.3.2.1 Configure UART settings for RS485 communication ====
285 285  
296 +
286 286  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:
287 287  
288 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
289 -|=(% style="width: 126px; background-color:#D9E2F3;color:#0070C0" %)(((
299 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
300 +|=(% style="width: 126px; background-color:#4F81BD;color:white" %)(((
290 290  **AT Commands**
291 -)))|=(% style="width: 187px; background-color:#D9E2F3;color:#0070C0" %)(((
302 +)))|=(% style="width: 187px; background-color:#4F81BD;color:white" %)(((
292 292  **Description**
293 -)))|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)(((
304 +)))|=(% style="width: 197px;background-color:#4F81BD;color:white" %)(((
294 294  **Example**
295 295  )))
296 296  |(% style="width:126px" %)(((
... ... @@ -353,8 +353,8 @@
353 353  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.
354 354  )))
355 355  
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**
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**
358 358  |(% style="width:122px" %)AT+CFGDEV|(% style="width:196px" %)(((
359 359  (((
360 360  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
... ... @@ -560,20 +560,75 @@
560 560  === 3.3.7 Uplink on Interrupt ===
561 561  
562 562  
574 +
563 563  RS485-LN support external Interrupt uplink since hardware v1.2 release.
564 564  
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" %)​
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"]]
566 566  
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.
568 568  
580 +==== 3.3.7.1 Set Interrupt Mode ====
569 569  
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 by the falling edge along the interrupt), 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 +
570 570  == 3.4 Uplink Payload ==
571 571  
572 572  
573 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
574 -|(% style="background-color:#d9e2f3; color:#0070c0; width:70px" %)(((
639 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
640 +|(% style="background-color:#4f81bd; color:white; width:70px" %)(((
575 575  **Size(bytes)**
576 -)))|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:360px" %)(((
642 +)))|(% style="background-color:#4f81bd; color:white; width:80px" %)**1**|(% style="background-color:#4f81bd; color:white; width:360px" %)(((
577 577  **Length depends on the return from the commands**
578 578  )))
579 579  |(% style="width:90px" %)(((
... ... @@ -735,31 +735,21 @@
735 735  )))
736 736  
737 737  (((
738 -(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
804 +(% style="color:blue" %)**Example 2:**  (%%)
739 739  )))
740 740  
741 741  (((
742 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
808 +Check TTL Sensor return:
743 743  )))
744 744  
745 745  (((
746 -
747 -)))
748 -
749 749  (((
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**
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" %)​
752 752  )))
753 -
754 -
755 755  )))
756 756  
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 -)))
760 760  
761 761  
762 -
763 763  ==== (% style="color:blue" %)**Set Payload version**(%%) ====
764 764  
765 765  
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1385 1385  To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1386 1386  )))
1387 1387  
1388 -(% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
1389 -|=(% style="width: 156px; background-color:#D9E2F3;color:#0070C0" %)(((
1444 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1445 +|=(% style="width: 156px; background-color:#4F81BD;color:white" %)(((
1390 1390  **Command example**
1391 -)))|=(% style="width: 355px; background-color:#D9E2F3;color:#0070C0" %)(((
1447 +)))|=(% style="width: 355px; background-color:#4F81BD;color:white" %)(((
1392 1392  **Function**
1393 1393  )))
1394 1394  |(% style="width:156px" %)(((
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1467 1467  
1468 1468  
1469 1469  (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1470 -|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**Button**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
1526 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**Button**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1471 1471  |(% 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**
1472 1472  |(% style="width:50px" %)RST|(% style="width:361px" %)Reboot RS485
1473 1473  |(% style="width:50px" %)PRO|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
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1476 1476  
1477 1477  
1478 1478  (% border="1.5" cellspacing="4" style="background-color:#f2f2f2; width:430px" %)
1479 -|=(% style="width: 50px;background-color:#D9E2F3;color:#0070C0" %)**LEDs**|=(% style="width: 380px;background-color:#D9E2F3;color:#0070C0" %)**Feature**
1535 +|=(% style="width: 50px;background-color:#4F81BD;color:white" %)**LEDs**|=(% style="width: 380px;background-color:#4F81BD;color:white" %)**Feature**
1480 1480  |PWR|Always on if there is power
1481 1481  |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.
1482 1482  
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1693 1693  1. Check if Modbus-MTU return back the expected result to RS485-LN.
1694 1694  1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1695 1695  
1696 -[[image:image-20221130104310-1.png||height="380" width="680"]]
1752 +[[image:image-20240816112950-1.png||height="382" width="731"]]
1697 1697  
1698 1698  
1699 1699  Example Connection:
... ... @@ -1815,12 +1815,36 @@
1815 1815  Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1816 1816  
1817 1817  
1818 -== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1874 +== 7.2 Why customers can't join TTN V3 in US915 /AU915 bands? ==
1819 1819  
1820 1820  
1821 1821  It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1822 1822  
1823 1823  
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 +
1824 1824  = 8. Order Info =
1825 1825  
1826 1826  
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