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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]] ... ... @@ -45,20 +45,18 @@ 45 45 Connection 46 46 47 47 48 - 49 49 [[image:image-20220527092146-4.png]] 50 50 51 51 Connection 52 52 53 - 54 54 * [[Pickdata MIO40 water pulse counter to LoRa with Dragino RS485-LN>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Pulse-Counter/]] : Configure Document 55 55 * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]] 56 56 57 57 == == 58 58 59 -== **1.3 Example3: Use RS485-LN with energy meters**==50 +== 1.3 Example3: Use RS485-LN with energy meters == 60 60 61 -=== **1.3.1 OverView**===52 +=== 1.3.1 OverView === 62 62 63 63 ((( 64 64 **Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications. ... ... @@ -73,7 +73,6 @@ 73 73 Connection1 74 74 75 75 76 - 77 77 ((( 78 78 How to connect with Energy Meter： 79 79 ))) ... ... @@ -103,13 +103,12 @@ 103 103 Connection2 104 104 105 105 106 - 107 107 [[image:image-20220527092555-7.png]] 108 108 109 109 Connection3 110 110 111 111 112 -=== **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 === 113 113 114 114 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. 115 115 ... ... @@ -148,12 +148,12 @@ 148 148 149 149 ))) 150 150 151 -=== **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 === 152 152 153 153 RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK. 154 154 155 155 156 -==== **1.3.3.1 via AT COMMAND:**====145 +==== 1.3.3.1 via AT COMMAND: ==== 157 157 158 158 First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct. 159 159 ... ... @@ -171,11 +171,11 @@ 171 171 AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 172 172 ))) 173 173 174 -a: 163 +a: length for the return of AT+COMMAND 175 175 176 -b: ;2: grab valid value by bytes section, max 3 sections.165 +b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections. 177 177 178 -c: 167 +c: define the position for valid value. 179 179 180 180 [[image:image-20220527092936-10.png]] 181 181 ... ... @@ -182,7 +182,6 @@ 182 182 AT COMMAND 183 183 184 184 185 - 186 186 PAYLOAD is available after the valid value is intercepted. 187 187 188 188 ... ... @@ -191,7 +191,6 @@ 191 191 AT COMMAND 192 192 193 193 194 - 195 195 You can get configured PAYLOAD on TTN. 196 196 197 197 [[image:image-20220527093133-12.png]] ... ... @@ -257,14 +257,12 @@ 257 257 258 258 (% style="color:#4f81bd" %)**01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.** 259 259 260 - 261 - 262 262 [[image:image-20220527093251-14.png]] 263 263 264 264 AT COMMAND 265 265 266 266 267 -==== **1.3.3.2 via LoRaWAN DOWNLINK**====252 +==== 1.3.3.2 via LoRaWAN DOWNLINK ==== 268 268 269 269 [[image:image-20220527093358-15.png]] 270 270 ... ... @@ -356,7 +356,7 @@ 356 356 DOWNLINK 357 357 358 358 359 -=== **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 === 360 360 361 361 ((( 362 362 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. ... ... @@ -405,7 +405,7 @@ 405 405 USB 406 406 407 407 408 -=== **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 === 409 409 410 410 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. 411 411 ... ... @@ -499,6 +499,7 @@ 499 499 500 500 * [[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 501 501 487 + 502 502 == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN == 503 503 504 504 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: ... ... @@ -505,6 +505,7 @@ 505 505 506 506 * [[CEM C31 485-T1-MID>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/ELECTRICAL%20CABINET/&file=ELECTRICAL%20CABINET%20READINGS.pdf]] : Configure Document For RS485-LN 507 507 494 + 508 508 == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL == 509 509 510 510 [[image:image-20220527094556-31.png]]