Last modified by Bei Jinggeng on 2025/01/16 11:36
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From version < 79.6 >
edited by Xiaoling
on 2022/10/27 11:03
To version < 79.2 >
edited by Xiaoling
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33 33  
34 34  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
35 35  
36 -
37 37  (((
37 +(((
38 +(((
39 +
40 +
38 38  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
39 39  )))
43 +)))
40 40  
41 41  (((
46 +(((
42 42  RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
43 43  )))
49 +)))
44 44  
45 45  (((
52 +(((
46 46  (% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
47 47  )))
55 +)))
48 48  
49 49  (((
58 +(((
50 50  (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
51 51  )))
52 52  
53 53  (((
54 54  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
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65 +
55 55  )))
67 +)))
68 +)))
56 56  
57 -
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  
... ... @@ -297,10 +297,10 @@
297 297  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:
298 298  
299 299  
300 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
312 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
301 301  |=(% style="width: 110px;" %)(((
302 302  **AT Commands**
303 -)))|=(% style="width: 210px;" %)(((
315 +)))|=(% style="width: 190px;" %)(((
304 304  **Description**
305 305  )))|=(% style="width: 190px;" %)(((
306 306  **Example**
... ... @@ -368,8 +368,8 @@
368 368  )))
369 369  )))
370 370  
371 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
372 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 210px;" %)**Description**|=(% style="width: 190px;" %)**Example**
383 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
384 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
373 373  |AT+CFGDEV|(% style="width:110px" %)(((
374 374  (((
375 375  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
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418 418  
419 419  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
420 420  |(% style="width:496px" %)(((
421 -**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
433 +(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
422 422  
423 423  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
424 424  
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504 504  Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
505 505  
506 506  
507 -~1. PAYVER: Defined by AT+PAYVER
519 +1. PAYVER: Defined by AT+PAYVER
520 +1. PAYLOAD COUNT: Total how many uplinks of this sampling.
521 +1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
522 +1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
508 508  
509 -2. PAYLOAD COUNT: Total how many uplinks of this sampling.
510 -
511 -3. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
512 -
513 -4. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
514 -
515 -
516 516  (% aria-label="image-20220602155039-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602155039-4.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" %)​
517 517  
518 518  
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578 578  == 3.4 Uplink Payload ==
579 579  
580 580  
581 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:500px" %)
582 -|=(% scope="row" style="width: 60px;" %)(((
589 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:520px" %)
590 +|(% style="width:90px" %)(((
583 583  Size(bytes)
584 -)))|(% style="width:80px" %)1|(% style="width:360px" %)(((
592 +)))|(% style="width:114px" %)1|(% style="width:353px" %)(((
585 585  Length depends on the return from the commands
586 586  )))
587 -|=(% style="width: 90px;" %)(((
595 +|(% style="width:90px" %)(((
588 588  Value
589 589  )))|(% style="width:114px" %)(((
590 590  PAYLOAD_VER
... ... @@ -1202,9 +1202,9 @@
1202 1202  (% style="color:#037691" %)** AT Command:**
1203 1203  )))
1204 1204  
1205 -**~ AT+DATABIT=7    **~/~/ Set the data bits to 7
1213 +**~ AT+DATABIT=7  **~/~/ Set the data bits to 7
1206 1206  
1207 -**~ AT+DATABIT=8    **~/~/ Set the data bits to 8
1215 +**~ AT+DATABIT=8  **~/~/ Set the data bits to 8
1208 1208  
1209 1209  * (((
1210 1210  (% style="color:#037691" %)**Downlink Payload:**
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1461 1461  
1462 1462  
1463 1463  (% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1464 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 380px;" %)**Feature**
1472 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1465 1465  |(% 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**
1466 1466  |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1467 1467  |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
... ... @@ -1477,6 +1477,7 @@
1477 1477  |**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.
1478 1478  
1479 1479  
1488 +
1480 1480  = 4. Case Study =
1481 1481  
1482 1482  

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