Changes for page Application Note : Communicate with Different Sensors ----- RS485-LN / RS485-BL

Last modified by Karry Zhuang on 2024/07/11 11:58

From version < 1.10 >

edited by Xiaoling
on 2022/05/12 10:05

To version < 1.3 >

edited by Xiaoling
on 2022/05/12 09:50

Change comment: There is no comment for this version

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@@ -41,13 +41,9 @@
  === 1.3.1 OverView ===
--(((
--**Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
--)))
++Note：The specifications of each energy meter are different, please refer to your own energy meter specifications.
--(((
  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
--)))
  [[image:https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="800" width="600"]]
@@ -76,14 +76,13 @@
  === 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
--If the user needs to read the parameters of the electric energy meter and use the modbus command,please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter.
++If the user needs to read the parameters of the electric energy meter and use the modbus command,
++please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter.
++
  [[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]]
--(% class="box infomessage" %)
--(((
  Example:AT+COMMAND1=01 03 00 00 00 01 84 0A
--)))
  * The first byte : slave address code (=001～247)
  * The second byte : read register value function code
@@ -93,10 +93,7 @@
  How to parse the reading of the return command of the parameter：
--(% class="box infomessage" %)
--(((
  Example:RETURN1：01 03 02 08 FD 7E 05
--)))
  * The first byte ARD: slave address code (=001～254)
  * The second byte: Return to read function code
@@ -110,22 +110,17 @@
  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
--==== 1.3.3.1 via AT COMMAND: ====
++==== via AT COMMAND: ====
--First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct.
++First, we can use AT+CFGDEV to get the return value, and we can also judge whether the input parameters are correct.
--(((
  If the configured parameters and commands are incorrect, the return value is not obtained.
--)))
  [[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
--**AT COMMAND**
++AT COMMAND
--(% class="box infomessage" %)
--(((
  AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
--)))
  a: length for the return of AT+COMMAND
@@ -139,7 +139,6 @@
  PAYLOAD is available after the valid value is intercepted.
--
  [[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]]
  AT COMMAND
@@ -146,12 +146,11 @@
  You can get configured PAYLOAD on TTN.
--
  [[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
  AT COMMAND
--**Example**: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
++Example: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
  RETURN1:01 03 02 00 02 39 85 00 00(return data)
@@ -177,91 +177,54 @@
 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.
--
  [[~[~[image:https://wiki.dragino.com/images/thumb/b/b8/AT_COMMAND11.png/600px-AT_COMMAND11.png~|~|height="271" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:AT_COMMAND11.png]]
  AT COMMAND
++==== 1.3.3.1 via LoRaWAN DOWNLINK ====
--==== 1.3.3.2 via LoRaWAN DOWNLINK ====
--
  [[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
--(((
  DOWNLINK
--)))
--(((
--
--)))
--
--(((
  Type Code 0xAF
--)))
--(((
 xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
--)))
--(((
  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-LN will execute the downlink command without uplink; if YY=1, RS485-LN
--)))
--(((
  will execute an uplink after got this command.
--)))
--(((
  Example:
--)))
--(((
  AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1
--)))
  [[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]]
  DOWNLINK
--
  [[~[~[image:https://wiki.dragino.com/images/thumb/2/20/DOWNLINK_METER3.png/600px-DOWNLINK_METER3.png~|~|height="105" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER3.png]]
  DOWNLINK
--
  [[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]]
  DOWNLINK
--
  [[~[~[image:https://wiki.dragino.com/images/thumb/3/39/DOWNLINK_METER5.png/600px-DOWNLINK_METER5.png~|~|height="176" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER5.png]]
  DOWNLINK

Changes for page Application Note : Communicate with Different Sensors ----- RS485-LN / RS485-BL

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