Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual

Last modified by Karry Zhuang on 2025/03/06 16:34

From version < 32.17 >

edited by Xiaoling
on 2022/06/02 15:31

To version < 30.1 >

edited by Xiaoling
on 2022/05/23 09:38

Change comment: Uploaded new attachment "1653269916228-732.png", version {1}

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@@ -18,30 +18,26 @@
  (((
  (((
--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.
++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.
  )))
  (((
--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.
++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.
  )))
  (((
--(% 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.
++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.
  )))
  (((
--(% 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.
--
--(% 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]]
++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.
  )))
  )))
  [[image:1653267211009-519.png||height="419" width="724"]]
--
  == 1.2 Specifications ==
--
  **Hardware System:**
  * STM32L072CZT6 MCU
@@ -48,6 +48,8 @@
  * SX1276/78 Wireless Chip
  * Power Consumption (exclude RS485 device):
  ** Idle: 32mA@12v
++
++*
  ** 20dB Transmit: 65mA@12v
  **Interface for Model:**
@@ -76,8 +76,6 @@
  * Automatic RF Sense and CAD with ultra-fast AFC.
  * Packet engine up to 256 bytes with CRC.
--
--
  == 1.3 Features ==
  * LoRaWAN Class A & Class C protocol (default Class C)
@@ -89,8 +89,6 @@
  * Support Modbus protocol
  * Support Interrupt uplink (Since hardware version v1.2)
--
--
  == 1.4 Applications ==
  * Smart Buildings & Home Automation
@@ -100,13 +100,10 @@
  * Smart Cities
  * Smart Factory
--
--
  == 1.5 Firmware Change log ==
  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
--
  == 1.6 Hardware Change log ==
  (((
@@ -114,8 +114,6 @@
  v1.2: Add External Interrupt Pin.
  v1.0: Release
--
--
  )))
  )))
@@ -132,8 +132,6 @@
  )))
  [[image:1653268091319-405.png]]
--
--
  )))
  = 3. Operation Mode =
@@ -142,8 +142,6 @@
  (((
  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.
--
--
  )))
  == 3.2 Example to join LoRaWAN network ==
@@ -152,15 +152,10 @@
  [[image:1653268155545-638.png||height="334" width="724"]]
--
  (((
--(((
  The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
--)))
--(((
 A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
--)))
  [[image:1653268227651-549.png||height="592" width="720"]]
@@ -212,7 +212,6 @@
  [[image:1652953568895-172.png||height="232" width="724"]]
--
  == 3.3 Configure Commands to read data ==
  (((
@@ -222,8 +222,6 @@
  (((
  (% 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
--
--
  )))
  )))
@@ -231,19 +231,19 @@
  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:
--(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
--|(% style="width:128px" %)(((
++(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
++|(((
  **AT Commands**
--)))|(% style="width:305px" %)(((
++)))|(% style="width:285px" %)(((
  **Description**
--)))|(% style="width:346px" %)(((
++)))|(% style="width:347px" %)(((
  **Example**
  )))
--|(% style="width:128px" %)(((
++|(((
  AT+BAUDR
--)))|(% style="width:305px" %)(((
++)))|(% style="width:285px" %)(((
  Set the baud rate (for RS485 connection). Default Value is: 9600.
--)))|(% style="width:346px" %)(((
++)))|(% style="width:347px" %)(((
  (((
  AT+BAUDR=9600
  )))
@@ -252,11 +252,11 @@
  Options: (1200,2400,4800,14400,19200,115200)
  )))
  )))
--|(% style="width:128px" %)(((
++|(((
  AT+PARITY
--)))|(% style="width:305px" %)(((
++)))|(% style="width:285px" %)(((
  Set UART parity (for RS485 connection)
--)))|(% style="width:346px" %)(((
++)))|(% style="width:347px" %)(((
  (((
  AT+PARITY=0
  )))
@@ -265,9 +265,9 @@
  Option: 0: no parity, 1: odd parity, 2: even parity
  )))
  )))
--|(% style="width:128px" %)(((
++|(((
  AT+STOPBIT
--)))|(% style="width:305px" %)(((
++)))|(% style="width:285px" %)(((
  (((
  Set serial stopbit (for RS485 connection)
  )))
@@ -275,7 +275,7 @@
  (((
  )))
--)))|(% style="width:346px" %)(((
++)))|(% style="width:347px" %)(((
  (((
  AT+STOPBIT=0 for 1bit
  )))
@@ -289,7 +289,6 @@
  )))
  )))
--
  === 3.3.2 Configure sensors ===
  (((
@@ -308,8 +308,6 @@
  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
  )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
--
--
  === 3.3.3 Configure read commands for each sampling ===
  (((
@@ -503,37 +503,41 @@
  [[image:1653269759169-150.png||height="513" width="716"]]
--(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
--Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
++**Examples: AT+DATAUP=1**
++
++Compose the uplink payload with value returns in sequence and send with **Multiply UPLINKs**.
++
  Final Payload is
--(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
++Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
 . Battery Info (2 bytes): Battery voltage
 . PAYVER (1 byte): Defined by AT+PAYVER
 . PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
 . PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
--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
++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
--[[image:1653269916228-732.png||height="433" width="711"]]
++[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
  So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
--DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
++DATA1=RETURN1 Valid Value = 20 20 0a 33 90 41
--DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
++DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10= 02 aa 05 81 0a 20
--DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
++DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = 20 20 20 2d 30
++
++
  Below are the uplink payloads:
--[[image:1653270130359-810.png]]
++[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]
--(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
++Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
     ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
@@ -543,8 +543,12 @@
     ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
--=== 3.3.5 Uplink on demand ===
++
++1.
++11.
++111. Uplink on demand
++
  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.
  Downlink control command:

1653270130359-810.png

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Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual

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