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

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

From version < 58.4 >

edited by Xiaoling
on 2022/06/06 11:21

To version < 59.14 >

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

Change comment: There is no comment for this version

Raw
Rendered

Summary

Page properties (1 modified, 0 added, 0 removed)

Details

Page properties

Content

@@ -92,6 +92,8 @@
  * 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)
@@ -104,6 +104,7 @@
  * Support Interrupt uplink (Since hardware version v1.2)
++
  == 1.4 Applications ==
  * Smart Buildings & Home Automation
@@ -114,6 +114,7 @@
  * 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/]]
@@ -235,11 +235,15 @@
  (((
  (((
++(((
  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.
  )))
++)))
  (((
++(((
  (% 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
++)))
  )))
@@ -320,11 +320,17 @@
  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
  |AT+CFGDEV|(% style="width:110px" %)(((
++(((
  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
++)))
++(((
  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
++)))
++(((
  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
++)))
  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
@@ -548,6 +548,7 @@
++
  ==== **RS485 Debug Command** ====
  (((
@@ -668,85 +668,161 @@
++
  ==== **Set Payload version** ====
++(((
  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.
++)))
--* **AT Command:**
++* (((
++**AT Command:**
++)))
  (% class="box infomessage" %)
  (((
++(((
  **AT+PAYVER: Set PAYVER field = 1**
  )))
++)))
--* **Downlink Payload:**
++* (((
++**Downlink Payload:**
++)))
++(((
  **0xAE 01**   ~-~-> Set PAYVER field =  0x01
++)))
++(((
  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
++)))
++
  ==== **Set RS485 Sampling Commands** ====
++(((
  AT+COMMANDx or AT+DATACUTx
++)))
++(((
  These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
++)))
++(((
++
++)))
--* **AT Command:**
++* (((
++**AT Command:**
++)))
  (% class="box infomessage" %)
  (((
++(((
  **AT+COMMANDx: Configure RS485 read command to sensor.**
  )))
++)))
  (% class="box infomessage" %)
  (((
++(((
  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
  )))
++)))
++(((
++
++)))
--* **Downlink Payload:**
++* (((
++**Downlink Payload:**
++)))
++(((
  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
++)))
++(((
  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
++)))
++(((
  Format: AF MM NN LL XX XX XX XX YY
++)))
++(((
  Where:
++)))
--* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
--* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
--* LL:   The length of AT+COMMAND or AT+DATACUT command
--* XX XX XX XX: AT+COMMAND or AT+DATACUT 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.
++* (((
++MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
++)))
++* (((
++NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
++)))
++* (((
++LL:   The length of AT+COMMAND or AT+DATACUT command
++)))
++* (((
++XX XX XX XX: AT+COMMAND or AT+DATACUT 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.
++)))
++(((
  **Example:**
++)))
++(((
  (% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
++)))
++(((
  (% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
++)))
++(((
  (% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
++)))
++
  ==== **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]].
++)))
++(((
  This command is valid since v1.3 firmware version
++)))
++(((
  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.
++)))
++(((
++
++)))
++(((
  **Example:**
++)))
--* 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.
++* (((
++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]]
@@ -754,201 +754,379 @@
++
  ==== **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.
++)))
++(((
  Default value: 0, range:  0 ~~ 65 seconds
++)))
--* **AT Command:**
++* (((
++**AT Command:**
++)))
  (% class="box infomessage" %)
  (((
++(((
  **AT+CMDDLaa=hex(bb cc)*1000**
  )))
++)))
++(((
  **Example:**
++)))
++(((
  **AT+CMDDL1=1000** to send the open time to 1000ms
++)))
++(((
++
++)))
--* **Downlink Payload:**
++* (((
++**Downlink Payload:**
++)))
++(((
  **0x AA aa bb cc**
++)))
++(((
  Same as: AT+CMDDLaa=hex(bb cc)*1000
++)))
++(((
     **Example:**
++)))
++(((
 xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
++)))
++
  ==== **Uplink payload mode** ====
++(((
  Define to use one uplink or multiple uplinks for the sampling.
++)))
++(((
  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
++)))
--* **AT Command:**
++* (((
++**AT Command:**
++)))
  (% class="box infomessage" %)
  (((
++(((
  **AT+DATAUP=0**
  )))
++)))
  (% class="box infomessage" %)
  (((
++(((
  **AT+DATAUP=1**
  )))
++)))
++(((
++
++)))
--* **Downlink Payload:**
++* (((
++**Downlink Payload:**
++)))
++(((
  **0xAD 00**   **~-~->** Same as AT+DATAUP=0
++)))
++(((
  **0xAD 01**   **~-~->** Same as AT+DATAUP=1
++)))
++
  ==== **Manually trigger an Uplink** ====
++(((
  Ask device to send an uplink immediately.
++)))
--* **AT Command:**
++* (((
++**AT Command:**
++)))
++(((
  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
++)))
++(((
++
++)))
--* **Downlink Payload:**
++* (((
++**Downlink Payload:**
++)))
++(((
  **0x08 FF**, RS485-LN will immediately send an uplink.
++)))
++
  ==== **Clear RS485 Command** ====
++(((
  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
++)))
--* **AT Command:**
++* (((
++**AT Command:**
++)))
++(((
  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
++)))
++(((
  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
++)))
++(((
  Example screen shot after clear all RS485 commands.
++)))
++(((
++
++)))
++(((
  The uplink screen shot is:
++)))
  [[image:1654160691922-496.png]]
--* **Downlink Payload:**
++* (((
++**Downlink Payload:**
++)))
++(((
  **0x09 aa bb**  same as AT+CMDEAR=aa,bb
++)))
++
  ==== **Set Serial Communication Parameters** ====
++(((
  Set the Rs485 serial communication parameters:
++)))
--* **AT Command:**
++* (((
++**AT Command:**
++)))
++(((
  Set Baud Rate:
++)))
  (% class="box infomessage" %)
  (((
++(((
  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
  )))
++)))
++(((
  Set UART Parity
++)))
  (% class="box infomessage" %)
  (((
++(((
  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
  )))
++)))
++(((
  Set STOPBIT
++)))
  (% class="box infomessage" %)
  (((
++(((
  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
  )))
++)))
++(((
++
++)))
--* **Downlink Payload:**
++* (((
++**Downlink Payload:**
++)))
++(((
  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
++)))
++(((
  **Example:**
++)))
--* A7 01 00 60   same as AT+BAUDR=9600
--* A7 01 04 80     same as AT+BAUDR=115200
++* (((
++A7 01 00 60   same as AT+BAUDR=9600
++)))
++* (((
++A7 01 04 80     same as AT+BAUDR=115200
++)))
++(((
  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
++)))
++(((
  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
++)))
++
++
  == 3.6 Listening mode for RS485 network ==
++(((
  This feature support since firmware v1.4
++)))
++(((
  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.
++)))
  [[image:image-20220602171200-8.png||height="567" width="1007"]]
++(((
  To enable the listening mode, use can run the command AT+RXMODE.
++)))
++(((
++
++)))
--(% 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)
++(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
++|=(% style="width: 100px;" %)(((
++**Command example**
++)))|=(% style="width: 400px;" %)(((
++**Function**
++)))
++|(% style="width:100px" %)(((
++AT+RXMODE=1,10
++)))|(% style="width:400px" %)(((
++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:100px" %)(((
++AT+RXMODE=2,500
++)))|(% style="width:400px" %)(((
++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:100px" %)(((
++AT+RXMODE=0,0
++)))|(% style="width:400px" %)(((
++Disable listening mode. This is the default settings.
++)))
++|(% style="width:100px" %)(((
++
++)))|(% style="width:400px" %)(((
++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)
++)))
++(((
++
++)))
++(((
  **Example**:
++)))
++(((
  The RS485-LN is set to AT+RXMODE=2,1000
++)))
++(((
  There is a two Modbus commands in the RS485 network as below:
++)))
++(((
  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
++)))
++(((
  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
++)))
++(((
  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
++)))
++(((
  [[image:image-20220602171200-9.png]]
++)))
++(((
++
++)))
++(((
++(((
  (% 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" 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"]]
++(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
++|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
++|(% style="width:50px" %)**ACT**|(% style="width:361px" %)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**
++|(% 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 ==
--(% border="1" style="background-color:#f7faff; width:500px" %)
--|=**LEDs**|=**Feature**
++
++(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
++|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**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.
++|**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]]
@@ -958,19 +958,26 @@
  == 5.1 Access AT Command ==
++(((
  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]]
++(((
  More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
++)))
++
  == 5.2 Common AT Command Sequence ==
  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
@@ -993,7 +993,9 @@
  )))
++(((
  If device already joined network:
++)))
  (% class="box infomessage" %)
  (((
@@ -1032,10 +1032,12 @@
  (% style="color:red" %)**Note:**
++(((
  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
 . 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
++)))
  [[image:1654162478620-421.png]]
@@ -1044,25 +1044,45 @@
  == 6.1 How to upgrade the image? ==
++(((
  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
++)))
--* Support new features
--* For bug fix
--* Change LoRaWAN bands.
++* (((
++Support new features
++)))
++* (((
++For bug fix
++)))
++* (((
++Change LoRaWAN bands.
++)))
++(((
  Below shows the hardware connection for how to upload an image to RS485-LN:
++)))
  [[image:1654162535040-878.png]]
++(((
  **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]].
++)))
++(((
  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
++)))
++(((
  **Step3: **Open flashloader; choose the correct COM port to update.
++)))
  (((
++(((
++(((
  (% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
  )))
++)))
++)))
  [[image:image-20220602175818-12.png]]
@@ -1125,7 +1125,6 @@
  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
--
  = 9.Packing Info =
@@ -1142,7 +1142,6 @@
  * Package Size / pcs : 14.5 x 8 x 5 cm
  * Weight / pcs : 170g
--
  = 10. FCC Caution for RS485LN-US915 =
  (((

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

Summary

Details

Applications

Navigation