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edited by Xiaoling
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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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281 281  )))
282 282  )))
283 283  
284 -==== 3.3.2.1 Configure UART settings for RS485 or TTL communication ====
294 +==== 3.3.2.1 Configure UART settings for RS485 communication ====
285 285  
286 286  
287 -RS485-LN can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
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:
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" %)(((
299 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
300 +|=(% style="width: 126px; background-color:#4F81BD;color:white" %)(((
293 293  **AT Commands**
294 -)))|=(% style="width: 187px; background-color:#D9E2F3;color:#0070C0" %)(((
302 +)))|=(% style="width: 187px; background-color:#4F81BD;color:white" %)(((
295 295  **Description**
296 -)))|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)(((
304 +)))|=(% style="width: 197px;background-color:#4F81BD;color:white" %)(((
297 297  **Example**
298 298  )))
299 299  |(% style="width:126px" %)(((
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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**
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**
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.
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563 563  === 3.3.7 Uplink on Interrupt ===
564 564  
565 565  
574 +
566 566  RS485-LN support external Interrupt uplink since hardware v1.2 release.
567 567  
568 -(% 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"]]
569 569  
570 -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.
571 571  
580 +==== 3.3.7.1 Set Interrupt Mode ====
572 572  
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 +
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" %)(((
639 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
640 +|(% 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" %)(((
642 +)))|(% 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" %)(((
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738 738  )))
739 739  
740 740  (((
741 -(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
804 +(% style="color:blue" %)**Example 2:**  (%%)
742 742  )))
743 743  
744 744  (((
745 -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:
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**
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" %)​
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  
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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" %)(((
1444 +(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1445 +|=(% style="width: 156px; background-color:#4F81BD;color:white" %)(((
1393 1393  **Command example**
1394 -)))|=(% style="width: 355px; background-color:#D9E2F3;color:#0070C0" %)(((
1447 +)))|=(% style="width: 355px; background-color:#4F81BD;color:white" %)(((
1395 1395  **Function**
1396 1396  )))
1397 1397  |(% style="width:156px" %)(((
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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**
1526 +|=(% 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"]]
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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**
1535 +|=(% 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  
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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-20221130104310-1.png||height="380" width="680"]]
1752 +[[image:image-20240816112950-1.png||height="382" width="731"]]
1700 1700  
1701 1701  
1702 1702  Example Connection:
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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 I can't join TTN V3 in US915 /AU915 bands? ==
1874 +== 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  
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 +
1827 1827  = 8. Order Info =
1828 1828  
1829 1829  
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