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... ... @@ -3,17 +3,12 @@ 3 3 4 4 {{toc/}} 5 5 6 += 1. Introduction = 6 6 7 - 8 - 9 - 10 - 11 -= **1. Introduction** = 12 - 13 13 This article provide the examples for RS485-LN to connect to different type of RS485 sensors. 14 14 15 15 16 -== **1.1 Example 1: Connect to Leak relay and VFD**==11 +== 1.1 Example 1: Connect to Leak relay and VFD == 17 17 18 18 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to Relay and VFD and communicate with Mobile. The structure is like below: 19 19 ... ... @@ -34,10 +34,8 @@ 34 34 * [[Configure Manual>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : Explanation on how to integrate to Node-red and to the Mobile Phone, and with link to the Github code. 35 35 * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]] 36 36 32 +== 1.2 Example 2: Connect to Pulse Counter == 37 37 38 - 39 -== **1.2 Example 2: Connect to Pulse Counter** == 40 - 41 41 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to Pulse Counter and communicate with Mobile. This example and example 2 compose the structure for a farm IoT solution. The structure is like below: 42 42 43 43 [[image:image-20220527092058-3.png]] ... ... @@ -45,7 +45,6 @@ 45 45 Connection 46 46 47 47 48 - 49 49 [[image:image-20220527092146-4.png]] 50 50 51 51 Connection ... ... @@ -55,9 +55,9 @@ 55 55 56 56 == == 57 57 58 -== **1.3 Example3: Use RS485-LN with energy meters**==50 +== 1.3 Example3: Use RS485-LN with energy meters == 59 59 60 -=== **1.3.1 OverView**===52 +=== 1.3.1 OverView === 61 61 62 62 ((( 63 63 **Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications. ... ... @@ -106,7 +106,7 @@ 106 106 Connection3 107 107 108 108 109 -=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands**===101 +=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands === 110 110 111 111 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. 112 112 ... ... @@ -145,12 +145,12 @@ 145 145 146 146 ))) 147 147 148 -=== **1.3.3 How to configure RS485-LN and parse output commands**===140 +=== 1.3.3 How to configure RS485-LN and parse output commands === 149 149 150 150 RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK. 151 151 152 152 153 -==== **1.3.3.1 via AT COMMAND:**====145 +==== 1.3.3.1 via AT COMMAND: ==== 154 154 155 155 First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct. 156 156 ... ... @@ -257,7 +257,7 @@ 257 257 AT COMMAND 258 258 259 259 260 -==== **1.3.3.2 via LoRaWAN DOWNLINK**====252 +==== 1.3.3.2 via LoRaWAN DOWNLINK ==== 261 261 262 262 [[image:image-20220527093358-15.png]] 263 263 ... ... @@ -349,7 +349,7 @@ 349 349 DOWNLINK 350 350 351 351 352 -=== **1.3.4 How to configure and output commands for RS485 to USB**===344 +=== 1.3.4 How to configure and output commands for RS485 to USB === 353 353 354 354 ((( 355 355 This step is not necessary, it is just to show how to use a normal RS485 to USB adapter to connect to the meter to check the input and output. This can be used to test the connection and RS485 command of the meter without RS485-LN. ... ... @@ -398,7 +398,7 @@ 398 398 USB 399 399 400 400 401 -=== **1.3.5 How to configure multiple devices and modify device addresses**===393 +=== 1.3.5 How to configure multiple devices and modify device addresses === 402 402 403 403 If users need to read the parameters of multiple energy meters, they need to modify the device address, because the default device address of each energy meter is 01. 404 404 ... ... @@ -492,6 +492,7 @@ 492 492 493 493 * [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/SEM_Three_Energy_Meter/&file=SEM%20three%20and%20Dragino%20RS485-LN%20v1.pdf]] : Configure Document for RS485-LN 494 494 487 + 495 495 == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN == 496 496 497 497 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to CEM C31 485-T1-MID and send the data for remote minitor. The structure is like below: