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

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

From version < 67.2 >

edited by Xiaoling
on 2022/07/29 08:38

To version < 68.5 >

edited by Xiaoling
on 2022/08/18 14:39

Change comment: There is no comment for this version

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  **Table of Contents:**
  {{toc/}}
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  == 1.2 Specifications ==
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  ** Idle: 32mA@12v
  ** 20dB Transmit: 65mA@12v
++
  **Interface for Model:**
  * RS485
  * Power Input 7~~ 24V DC.
++
  **LoRa Spec:**
  * Frequency Range:
@@ -222,6 +222,8 @@
  (((
  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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++
  )))
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  === 3.3.2 Configure sensors ===
  (((
  (((
--Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won’t run during each sampling.
++Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
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  )))
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  === 3.3.3 Configure read commands for each sampling ===
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  * (% style="color:#037691" %)**Grab a section**
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  * (% style="color:#037691" %)**Grab different sections**
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--=== 3.5.2 Sensor related commands ===
++=== 3.5.2 Downlink Response(Since firmware v1.4) ===
  Response feature is added to the server's downlink, a special package with a FPort of 200 will be uploaded immediately after receiving the data sent by the server.
@@ -620,8 +620,9 @@
  ==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
++
  (((
--This command is used to configure the RS485 devices; they won’t be used during sampling.
++This command is used to configure the RS485 devices; they won't be used during sampling.
  )))
  * (((
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  (((
--**Example 1**    ~-~-> Configure without ask for uplink (YY=0)
++(% style="color:blue" %)**Example 1:**  (%%)  ~-~-> Configure without ask for uplink (YY=0)
  )))
  (((
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  )))
  (((
--**Example 2**        ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
++(% style="color:blue" %)**Example 2:**  (%%)      ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
  )))
  (((
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  ==== (% style="color:blue" %)**Set Payload version**(%%) ====
++
  (((
  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.
  )))
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  ==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
++
  (((
  AT+COMMANDx or AT+DATACUTx
  )))
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  (((
  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
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  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
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  ==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
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  (((
  **AT+MBFUN** is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
  )))
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  ==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
++
  (((
  Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
  )))
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  ==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
++
  (((
  Define to use one uplink or multiple uplinks for the sampling.
  )))
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  ==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
++
  (((
  Ask device to send an uplink immediately.
  )))
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  ==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
++
  (((
  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
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  ==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
++
  (((
  Set the Rs485 serial communication parameters:
  )))
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  == 3.8 LEDs ==
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  = 4. Case Study =
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  = 5. Use AT Command =
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  == 5.1 Access AT Command ==
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 . Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
 . Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
 . The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
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  = 6. FAQ =
++
  == 6.1 How to upgrade the image? ==
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  Below shows the hardware connection for how to upload an image to RS485-LN:
  )))
--(% aria-label="1654162535040-878.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162535040-878.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" %)
++(% aria-label="1654162535040-878.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162535040-878.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" %)
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  (((
  (% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
  )))
  (((
--(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
++(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Firmware/]].
  )))
  (((
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  = 9.Packing Info =
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  )))
  * (((
  Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
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  )))

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