Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 80.1 >
edited by Bei Jinggeng
on 2022/10/28 17:05
To version < 97.2 >
edited by Xiaoling
on 2022/11/30 14:47
>
Change comment: There is no comment for this version

Summary

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Author
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1 -XWiki.Bei
1 +XWiki.Xiaoling
Content
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30 30  
31 31  = 1.Introduction =
32 32  
33 -
34 34  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
35 35  
36 36  
... ... @@ -58,13 +58,12 @@
58 58  (% aria-label="1653267211009-519.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653267211009-519.png||data-widget="image" height="419" width="724"]](% 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" %)​
59 59  
60 60  
61 -
62 62  == 1.2 Specifications ==
63 63  
64 64  
65 65  (% style="color:#037691" %)**Hardware System:**
66 66  
67 -* STM32L072CZT6 MCU
65 +* STM32L072xxxx MCU
68 68  * SX1276/78 Wireless Chip 
69 69  * Power Consumption (exclude RS485 device):
70 70  ** Idle: 32mA@12v
... ... @@ -141,7 +141,6 @@
141 141  v1.0: Release
142 142  )))
143 143  
144 -
145 145  
146 146  )))
147 147  )))
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161 161  
162 162  (% aria-label="1653268091319-405.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268091319-405.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" %)​
163 163  
164 -
165 165  
166 166  )))
167 167  
168 168  = 3. Operation Mode =
169 169  
170 -
171 171  == 3.1 How it works? ==
172 172  
173 173  
... ... @@ -176,7 +176,6 @@
176 176  The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
177 177  )))
178 178  
179 -
180 180  
181 181  )))
182 182  
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265 265  (% aria-label="1652953568895-172.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953568895-172.png||data-widget="image" height="232" width="724"]](% 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" %)​
266 266  
267 267  
268 -
269 269  == 3.3 Configure Commands to read data ==
270 270  
271 271  
... ... @@ -283,7 +283,6 @@
283 283  (% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
284 284  )))
285 285  
286 -
287 287  
288 288  )))
289 289  )))
... ... @@ -455,7 +455,6 @@
455 455  
456 456  (% aria-label="image-20220602153621-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-3.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" %)​
457 457  
458 -
459 459  
460 460  )))
461 461  
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544 544  (% aria-label="1654157178836-407.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157178836-407.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" %)​
545 545  
546 546  
547 -
548 548  === 3.3.5 Uplink on demand ===
549 549  
550 550  
... ... @@ -557,7 +557,6 @@
557 557  (% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
558 558  
559 559  
560 -
561 561  === 3.3.6 Uplink on Interrupt ===
562 562  
563 563  
... ... @@ -569,7 +569,6 @@
569 569  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.
570 570  
571 571  
572 -
573 573  == 3.4 Uplink Payload ==
574 574  
575 575  
... ... @@ -598,7 +598,6 @@
598 598  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
599 599  
600 600  
601 -
602 602  == 3.5 Configure RS485-LN via AT or Downlink ==
603 603  
604 604  
... ... @@ -630,7 +630,6 @@
630 630  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
631 631  
632 632  
633 -
634 634  === 3.5.2 Downlink Response(Since firmware v1.4) ===
635 635  
636 636  
... ... @@ -644,12 +644,10 @@
644 644  The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable)
645 645  
646 646  
647 -
648 648  === 3.5.3 Sensor related commands ===
649 649  
650 650  
651 651  
652 -
653 653  ==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
654 654  
655 655  
... ... @@ -1195,21 +1195,22 @@
1195 1195  
1196 1196  ==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.0)**(%%) ====
1197 1197  
1182 +
1198 1198  * (((
1199 1199  (% style="color:#037691" %)** AT Command:**
1200 1200  )))
1201 1201  
1202 -**~ AT+DATABIT=7    **~/~/ Set the data bits to 7
1187 +(% style="color:#4472c4" %)** AT+DATABIT=7    **(%%)~/~/ Set the data bits to 7
1203 1203  
1204 -**~ AT+DATABIT=8    **~/~/ Set the data bits to 8
1189 +(% style="color:#4472c4" %)** AT+DATABIT=8    **(%%)~/~/ Set the data bits to 8
1205 1205  
1206 1206  * (((
1207 1207  (% style="color:#037691" %)**Downlink Payload:**
1208 1208  )))
1209 1209  
1210 -**~ A7 04 07**: Same as  AT+DATABIT=7
1195 +(% style="color:#4472c4" %)** A7 04 07**(%%): Same as  AT+DATABIT=7
1211 1211  
1212 -**~ A7 04 08**: Same as  AT+DATABIT=8
1197 +(% style="color:#4472c4" %)** A7 04 08**(%%): Same as  AT+DATABIT=8
1213 1213  
1214 1214  
1215 1215  
... ... @@ -1345,7 +1345,6 @@
1345 1345  [[image:image-20220824144240-1.png]]
1346 1346  
1347 1347  
1348 -
1349 1349  == 3.6 Listening mode for RS485 network ==
1350 1350  
1351 1351  
... ... @@ -1425,15 +1425,15 @@
1425 1425  )))
1426 1426  
1427 1427  (((
1428 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1412 +The Modbus master send a command: (% style="background-color:#ffc000" %)**01 03 00 00 00 02 c4 0b**
1429 1429  )))
1430 1430  
1431 1431  (((
1432 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1416 +And Modbus slave reply with: (% style="background-color:green" %)**01 03 04 00 00 00 00 fa 33**
1433 1433  )))
1434 1434  
1435 1435  (((
1436 -RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b  (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1420 +RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)**01 03 00 00 00 02 c4 0b  **(% style="background-color:green" %)**01 03 04 00 00 00 00 fa 33**
1437 1437  
1438 1438  
1439 1439  )))
... ... @@ -1453,7 +1453,6 @@
1453 1453  )))
1454 1454  
1455 1455  
1456 -
1457 1457  == 3.7 Buttons ==
1458 1458  
1459 1459  
... ... @@ -1479,10 +1479,8 @@
1479 1479  User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
1480 1480  
1481 1481  
1482 -
1483 1483  = 5. Use AT Command =
1484 1484  
1485 -
1486 1486  == 5.1 Access AT Command ==
1487 1487  
1488 1488  
... ... @@ -1510,10 +1510,8 @@
1510 1510  )))
1511 1511  
1512 1512  
1513 -
1514 1514  == 5.2 Common AT Command Sequence ==
1515 1515  
1516 -
1517 1517  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1518 1518  
1519 1519  
... ... @@ -1574,10 +1574,8 @@
1574 1574  (% aria-label="1654162478620-421.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162478620-421.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" %)​
1575 1575  
1576 1576  
1577 -
1578 1578  = 6. FAQ =
1579 1579  
1580 -
1581 1581  == 6.1 How to upgrade the image? ==
1582 1582  
1583 1583  
... ... @@ -1644,7 +1644,6 @@
1644 1644  (% aria-label="image-20220602175638-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175638-10.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" %)​
1645 1645  
1646 1646  
1647 -
1648 1648  == 6.2 How to change the LoRa Frequency Bands/Region? ==
1649 1649  
1650 1650  
... ... @@ -1651,7 +1651,6 @@
1651 1651  User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1652 1652  
1653 1653  
1654 -
1655 1655  == 6.3 How many RS485-Slave can RS485-LN connects? ==
1656 1656  
1657 1657  
... ... @@ -1658,7 +1658,6 @@
1658 1658  The RS485-LN can support max 32 RS485 devices. Each uplink command of RS485-LN can support max 16 different RS485 command. So RS485-LN can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1659 1659  
1660 1660  
1661 -
1662 1662  == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1663 1663  
1664 1664  
... ... @@ -1667,7 +1667,6 @@
1667 1667  Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1668 1668  
1669 1669  
1670 -
1671 1671  == 6.5 Can i use point to point communication for RS485-LN? ==
1672 1672  
1673 1673  
... ... @@ -1674,7 +1674,6 @@
1674 1674  Yes, please updating point-to-point [[firmware>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]]，then refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1675 1675  
1676 1676  
1677 -
1678 1678  == 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1679 1679  
1680 1680  
... ... @@ -1681,10 +1681,117 @@
1681 1681  [[Use RS485-BL or RS485-LN to connect to RS232 devices. - DRAGINO>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/RS485%20to%20RS232/]]
1682 1682  
1683 1683  
1656 +== 6.7 How to judge whether there is a problem with the set COMMAND ==
1684 1684  
1685 -= 7. Trouble Shooting =
1658 +=== 6.7.1 Introduce: ===
1686 1686  
1687 1687  
1661 +Users can use below the structure to fast debug the communication between RS485BL and RS485-LN. The principle is to put the PC in the RS485 network and sniff the packet between Modbus MTU and RS485-BL/LN. We can use this way to:
1662 +
1663 +1. Test if Modbus-MTU works with PC commands.
1664 +1. Check if RS485-LN sent the expected command to Mobus-MTU
1665 +1. Check if Modbus-MTU return back the expected result to RS485-LN.
1666 +1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1667 +
1668 +[[image:image-20221130104310-1.png||height="380" width="680"]]
1669 +
1670 +
1671 +Example Connection:
1672 +
1673 +[[image:image-20221130104310-2.png]]
1674 +
1675 +
1676 +=== 6.7.2 Set up PC to monitor RS485 network With Serial tool ===
1677 +
1678 +
1679 +(% style="color:red" %)**Note: Receive and send set to hex mode**
1680 +
1681 +[[image:image-20221130104310-3.png||height="616" width="714"]]
1682 +
1683 +
1684 +=== 6.7.3 With ModRSsim2: ===
1685 +
1686 +
1687 +(% style="color:blue" %)**(1) Select serial port MODBUS RS-232**
1688 +
1689 +[[image:image-20221130104310-4.png||height="390" width="865"]]
1690 +
1691 +
1692 +(% style="color:blue" %)**(2) Click the serial port icon**
1693 +
1694 +[[image:image-20221130104310-5.png||height="392" width="870"]]
1695 +
1696 +
1697 +(% style="color:blue" %)**(3) After selecting the correct serial port and baud rate, click ok**
1698 +
1699 +[[image:image-20221130104310-6.png]]
1700 +
1701 +
1702 +(% style="color:blue" %)**(4) Click the comms.**
1703 +
1704 +[[image:image-20221130104310-7.png||height="376" width="835"]]
1705 +
1706 +(% class="wikigeneratedid" id="HRunRS485-LN2FBLcommandandmonitorifitiscorrect." %)
1707 +**Run RS485-LN/BL command and monitor if it is correct.**
1708 +
1709 +
1710 +=== 6.7.4 Example – Test the CFGDEV command ===
1711 +
1712 +
1713 +RS485-LN sent below command:
1714 +
1715 +(% style="color:blue" %)**AT+CFGDEV=01 03 20 00 01 85 c0,1**(%%) to RS485 network, and PC is able to get this command and return commands from MTU to show in the serial tool.
1716 +
1717 +
1718 +We can see the output from the Serial port tool to analyze. And check if they are expected result.
1719 +
1720 +[[image:image-20221130104310-8.png||height="214" width="797"]]
1721 +
1722 +
1723 +We can also use (% style="color:blue" %)**ModRSsim2**(%%) to see the output.
1724 +
1725 +[[image:image-20221130104310-9.png||height="531" width="729"]]
1726 +
1727 +
1728 +=== 6.7.5 Example – Test CMD command sets. ===
1729 +
1730 +
1731 +Run (% style="color:blue" %)**AT+SENSORVALUE=1**(%%) to test the CMD commands set in RS485-LN.
1732 +
1733 +
1734 +(% style="color:blue" %)**Serial port tool:**
1735 +
1736 +[[image:image-20221130104310-10.png||height="339" width="844"]]
1737 +
1738 +
1739 +(% style="color:blue" %)**ModRSsim2:**
1740 +
1741 +[[image:image-20221130104310-11.png||height="281" width="962"]]
1742 +
1743 +
1744 +=== 6.7.6 Test with PC ===
1745 +
1746 +
1747 +If there is still have problem to set up correctly the commands between RS485-LN and MTU. User can test the correct RS485 command set in PC and compare with the RS485 command sent out via RS485-LN. as long as both commands are the same, the MTU should return correct result.
1748 +
1749 +
1750 +Or User can send the working commands set in PC serial tool to Dragino Support to check what should be configured in RS485-LN.
1751 +
1752 +(% style="color:blue" %)**Connection method：**
1753 +
1754 +[[image:image-20221130104310-12.png]]
1755 +
1756 +
1757 +(% style="color:blue" %)**Link situation:**
1758 +
1759 +[[image:image-20221130104310-13.png||height="458" width="486"]]
1760 +
1761 +
1762 +[[image:image-20221130104310-14.png||height="371" width="823"]]
1763 +
1764 +
1765 += 7. Trouble Shooting =
1766 +
1688 1688  == 7.1 Downlink doesn't work, how to solve it? ==
1689 1689  
1690 1690  
... ... @@ -1691,7 +1691,6 @@
1691 1691  Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1692 1692  
1693 1693  
1694 -
1695 1695  == 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1696 1696  
1697 1697  
... ... @@ -1698,7 +1698,6 @@
1698 1698  It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1699 1699  
1700 1700  
1701 -
1702 1702  = 8. Order Info =
1703 1703  
1704 1704  
... ... @@ -1787,7 +1787,6 @@
1787 1787  )))
1788 1788  
1789 1789  
1790 -
1791 1791  = 11. Support =
1792 1792  
1793 1793  
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