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

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

From version < 58.25 >

edited by Xiaoling
on 2022/06/06 11:27

To version < 58.8 >

edited by Xiaoling
on 2022/06/06 11:22

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@@ -795,35 +795,18 @@
  ==== **Fast command to handle MODBUS device** ====
--(((
  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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  This command is valid since v1.3 firmware version
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  AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
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--
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  **Example:**
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--* (((
--AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
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--* (((
--AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
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--* (((
--AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
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++* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
++* AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
++* AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
  [[image:image-20220602165351-6.png]]
@@ -831,376 +831,201 @@
--
  ==== **RS485 command timeout** ====
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  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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  Default value: 0, range:  0 ~~ 65 seconds
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--* (((
--**AT Command:**
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++* **AT Command:**
  (% class="box infomessage" %)
  (((
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  **AT+CMDDLaa=hex(bb cc)*1000**
  )))
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  **Example:**
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  **AT+CMDDL1=1000** to send the open time to 1000ms
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--
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--* (((
--**Downlink Payload:**
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++* **Downlink Payload:**
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  **0x AA aa bb cc**
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  Same as: AT+CMDDLaa=hex(bb cc)*1000
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     **Example:**
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 xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
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--
  ==== **Uplink payload mode** ====
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  Define to use one uplink or multiple uplinks for the sampling.
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  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
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--* (((
--**AT Command:**
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++* **AT Command:**
  (% class="box infomessage" %)
  (((
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  **AT+DATAUP=0**
  )))
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  (% class="box infomessage" %)
  (((
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  **AT+DATAUP=1**
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--
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--* (((
--**Downlink Payload:**
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++* **Downlink Payload:**
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  **0xAD 00**   **~-~->** Same as AT+DATAUP=0
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  **0xAD 01**   **~-~->** Same as AT+DATAUP=1
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--
  ==== **Manually trigger an Uplink** ====
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  Ask device to send an uplink immediately.
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--* (((
--**AT Command:**
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++* **AT Command:**
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  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
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--
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--* (((
--**Downlink Payload:**
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++* **Downlink Payload:**
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  **0x08 FF**, RS485-LN will immediately send an uplink.
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--
  ==== **Clear RS485 Command** ====
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  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
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--* (((
--**AT Command:**
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++* **AT Command:**
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  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
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  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
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  Example screen shot after clear all RS485 commands.
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--
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  The uplink screen shot is:
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  [[image:1654160691922-496.png]]
--* (((
--**Downlink Payload:**
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++* **Downlink Payload:**
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  **0x09 aa bb**  same as AT+CMDEAR=aa,bb
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--
  ==== **Set Serial Communication Parameters** ====
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  Set the Rs485 serial communication parameters:
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--* (((
--**AT Command:**
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++* **AT Command:**
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  Set Baud Rate:
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  (% class="box infomessage" %)
  (((
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  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
  )))
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  Set UART Parity
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  (% class="box infomessage" %)
  (((
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  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
  )))
--)))
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  Set STOPBIT
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  (% class="box infomessage" %)
  (((
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  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
  )))
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--
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--* (((
--**Downlink Payload:**
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++* **Downlink Payload:**
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  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
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  **Example:**
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--* (((
--A7 01 00 60   same as AT+BAUDR=9600
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--* (((
--A7 01 04 80     same as AT+BAUDR=115200
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++* A7 01 00 60   same as AT+BAUDR=9600
++* A7 01 04 80     same as AT+BAUDR=115200
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  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
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  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
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--
--
  == 3.6 Listening mode for RS485 network ==
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  This feature support since firmware v1.4
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--(((
  RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
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  [[image:image-20220602171200-8.png||height="567" width="1007"]]
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  To enable the listening mode, use can run the command AT+RXMODE.
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--
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--(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
--|=(% style="width: 161px;" %)(((
--**Command example:**
--)))|=(% style="width: 337px;" %)(((
--**Function**
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--|(% style="width:161px" %)(((
--AT+RXMODE=1,10
--)))|(% style="width:337px" %)(((
--Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
--)))
--|(% style="width:161px" %)(((
--AT+RXMODE=2,500
--)))|(% style="width:337px" %)(((
--Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
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--|(% style="width:161px" %)(((
--AT+RXMODE=0,0
--)))|(% style="width:337px" %)(((
--Disable listening mode. This is the default settings.
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--|(% style="width:161px" %)(((
--
--)))|(% style="width:337px" %)(((
--A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
--)))
++(% border="1" style="background-color:#ffffcc; width:500px" %)
++|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
++|(% style="width:161px" %)AT+RXMODE=1,10 |(% style="width:337px" %)Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
++|(% style="width:161px" %)AT+RXMODE=2,500|(% style="width:337px" %)Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
++|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
++|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
--(((
  **Downlink Command:**
--)))
--(((
  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
--)))
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--
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  **Example**:
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  The RS485-LN is set to AT+RXMODE=2,1000
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--(((
  There is a two Modbus commands in the RS485 network as below:
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  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
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  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
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  RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b  (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
--)))
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  [[image:image-20220602171200-9.png]]
--)))
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--
--)))
--(((
  (% style="color:red" %)Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.
--)))
  == 3.7 Buttons ==
--(% border="1" cellspacing="10" style="background-color:#f7faff; width:500px" %)
++(% border="1" style="background-color:#f7faff; width:500px" %)
  |=**Button**|=(% style="width: 1420px;" %)**Feature**
  |**ACT**|(% style="width:1420px" %)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**
  |**RST**|(% style="width:1420px" %)Reboot RS485
  |**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
--
--
  == 3.8 LEDs ==
--(% border="1" cellspacing="10" style="background-color:#f7faff; width:500px" %)
++(% border="1" style="background-color:#f7faff; width:500px" %)
  |=**LEDs**|=**Feature**
  |**PWR**|Always on if there is power
  |**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.
--
--
  = 4. Case Study =
  User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN  RS485-BL.WebHome]]
@@ -1210,16 +1210,12 @@
  == 5.1 Access AT Command ==
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  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.
--)))
  [[image:1654162355560-817.png]]
--(((
  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:
--)))
  [[image:1654162368066-342.png]]

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