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

Last modified by Bei Jinggeng on 2025/01/16 11:36

From version < 61.4 >

edited by Xiaoling
on 2022/06/14 11:28

To version < 59.12 >

edited by Xiaoling
on 2022/06/06 14:23

Change comment: There is no comment for this version

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Title

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--RS485-LN – RS485 to LoRaWAN Converter User Manual
++RS485-LN – RS485 to LoRaWAN Converter

Content

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++**RS485-LN – RS485 to LoRaWAN Converter User Manual**
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--
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  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.
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  (% 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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--
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  [[image:1653268227651-549.png||height="592" width="720"]]
--
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  The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
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--(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
++**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
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  [[image:1652953462722-299.png]]
--
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  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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--**Add APP EUI in the application.**
++Add APP EUI in the application.
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  [[image:1652953542269-423.png||height="710" width="723"]]
++Add APP KEY and DEV EUI
--
--**Add APP KEY and DEV EUI**
--
  [[image:1652953553383-907.png||height="514" width="724"]]
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--(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
++**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
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  [[image:1652953568895-172.png||height="232" width="724"]]
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--There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-LNviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
++There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
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--
  === 3.3.2 Configure sensors ===
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--
  === 3.3.3 Configure read commands for each sampling ===
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  During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
--(% style="color:#037691" %)**Each RS485 commands include two parts:**
++**Each RS485 commands include two parts:**
  ~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
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  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
++
  Below are examples for the how above AT Commands works.
--(% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
++**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
  |(% style="width:496px" %)(((
--(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
++**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
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  In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
--(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
++**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
  (% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
  |(% style="width:510px" %)(((
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  **Examples:**
--* (% style="color:#037691" %)**Grab bytes**
++* Grab bytes:
  [[image:image-20220602153621-1.png]]
--* (% style="color:#037691" %)**Grab a section**
++* Grab a section.
  [[image:image-20220602153621-2.png]]
--* (% style="color:#037691" %)**Grab different sections**
++* Grab different sections.
  [[image:image-20220602153621-3.png]]
--
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  [[image:1654157178836-407.png]]
--
  === 3.3.5 Uplink on demand ===
  Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command.
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  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
--== 3.5 Configure RS485-LN via AT or Downlink ==
++== 3.5 Configure RS485-BL via AT or Downlink ==
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  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
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  ==== **Set Payload version** ====
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--This is the first byte of the uplink payload. RS485-LN can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
++This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
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  * (((
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  XX XX XX XX: AT+COMMAND or AT+DATACUT command
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--YY:   If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
++YY:   If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
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  |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
  |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
++
++
  == 3.8 LEDs ==
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  == 5.1 Access AT Command ==
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--RS485-LN supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-LN to use AT command, as below.
++RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
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  [[image:1654162355560-817.png]]
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--In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-LN. The default password is 123456. Below is the output for reference:
++In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
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  [[image:1654162368066-342.png]]
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  User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
--== 6.3 How many RS485-Slave can RS485-LN connects? ==
++== 6.3 How many RS485-Slave can RS485-BL connects? ==
--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"]].
++The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL 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"]].
  == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==

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