Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 32.5 >
edited by Xiaoling
on 2022/06/02 15:25
To version < 29.2 >
edited by Xiaoling
on 2022/05/23 09:37
>
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... ... @@ -18,27 +18,24 @@
18 18  
19 19  (((
20 20  (((
21 -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.
21 +The Dragino RS485-LN is a RS485 to LoRaWAN Converter. It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
22 22  )))
23 23  
24 24  (((
25 -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.
25 +RS485-LN allows user to 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.
26 26  )))
27 27  
28 28  (((
29 -(% 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.
29 +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.
30 30  )))
31 31  
32 32  (((
33 -(% 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.
34 -
35 -(% 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]]
33 +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.
36 36  )))
37 37  )))
38 38  
39 39  [[image:1653267211009-519.png||height="419" width="724"]]
40 40  
41 -
42 42  == 1.2 Specifications ==
43 43  
44 44  **Hardware System:**
... ... @@ -47,6 +47,8 @@
47 47  * SX1276/78 Wireless Chip 
48 48  * Power Consumption (exclude RS485 device):
49 49  ** Idle: 32mA@12v
47 +
48 +*
50 50  ** 20dB Transmit: 65mA@12v
51 51  
52 52  **Interface for Model:**
... ... @@ -476,39 +476,43 @@
476 476  Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
477 477  )))
478 478  
479 -[[image:1653269759169-150.png||height="513" width="716"]]
478 +[[image:1653269759169-150.png]]
480 480  
481 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
482 482  
483 -Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
484 484  
482 +**Examples: AT+DATAUP=1**
483 +
484 +Compose the uplink payload with value returns in sequence and send with **Multiply UPLINKs**.
485 +
485 485  Final Payload is
486 486  
487 -(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
488 +Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
488 488  
489 489  1. Battery Info (2 bytes): Battery voltage
490 490  1. PAYVER (1 byte): Defined by AT+PAYVER
491 491  1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
492 492  1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
493 -1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
494 +1. DATA: Valid value: max 6 bytes(US915 version here, [[Notice*!>>path:#max_byte]]) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
494 494  
495 -[[image:1653269916228-732.png||height="433" width="711"]]
496 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
496 496  
497 497  
498 498  So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
499 499  
500 -DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
501 +DATA1=RETURN1 Valid Value = 20 20 0a 33 90 41
501 501  
502 -DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
503 +DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10= 02 aa 05 81 0a 20
503 503  
504 -DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
505 +DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = 20 20 20 2d 30
505 505  
507 +
508 +
506 506  Below are the uplink payloads:
507 507  
508 -[[image:1653270130359-810.png]]
511 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]
509 509  
510 510  
511 -(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
514 +Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
512 512  
513 513   ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
514 514  
... ... @@ -518,8 +518,12 @@
518 518  
519 519   ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
520 520  
521 -=== 3.3.5 Uplink on demand ===
522 522  
525 +
526 +1.
527 +11.
528 +111. Uplink on demand
529 +
523 523  Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
524 524  
525 525  Downlink control command:
1653269916228-732.png
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