Last modified by Karry Zhuang on 2024/07/11 11:58
Summary
-
Page properties (1 modified, 0 added, 0 removed)
Details
- Page properties
-
- Content
-
... ... @@ -24,7 +24,6 @@ 24 24 **Connection** 25 25 26 26 27 - 28 28 [[image:image-20220527091942-2.png]](% style="display:none" %) 29 29 30 30 **Connection** ... ... @@ -51,7 +51,6 @@ 51 51 **Connection** 52 52 53 53 54 - 55 55 [[image:image-20220527092146-4.png||height="507" width="906"]] 56 56 57 57 **Connection** ... ... @@ -76,8 +76,6 @@ 76 76 77 77 ((( 78 78 This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter. 79 - 80 - 81 81 ))) 82 82 83 83 [[image:image-20220527092419-5.png]] ... ... @@ -85,7 +85,6 @@ 85 85 **Connection1** 86 86 87 87 88 - 89 89 ((( 90 90 (% style="color:blue" %)**How to connect with Energy Meter：** 91 91 ... ... @@ -110,8 +110,6 @@ 110 110 111 111 ((( 112 112 Once there is power, the RS485-LN will be on. 113 - 114 - 115 115 ))) 116 116 117 117 [[image:image-20220527092514-6.png]] ... ... @@ -119,7 +119,6 @@ 119 119 **Connection2** 120 120 121 121 122 - 123 123 [[image:image-20220527092555-7.png]] 124 124 125 125 **Connection3** ... ... @@ -206,7 +206,6 @@ 206 206 **AT COMMAND** 207 207 208 208 209 - 210 210 PAYLOAD is available after the valid value is intercepted. 211 211 212 212 [[image:image-20220601143046-7.png]] ... ... @@ -214,7 +214,6 @@ 214 214 **AT COMMAND** 215 215 216 216 217 - 218 218 You can get configured PAYLOAD on TTN. 219 219 220 220 [[image:image-20220601143519-1.png]] ... ... @@ -278,7 +278,6 @@ 278 278 AT COMMAND 279 279 280 280 281 - 282 282 (% style="color:blue" %)**01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.** 283 283 284 284 ... ... @@ -287,7 +287,6 @@ 287 287 AT COMMAND 288 288 289 289 290 - 291 291 ==== **1.3.3.2 via LoRaWAN DOWNLINK** ==== 292 292 293 293 ... ... @@ -298,7 +298,6 @@ 298 298 ))) 299 299 300 300 301 - 302 302 ((( 303 303 (% style="color:blue" %)**Type Code 0xAF** 304 304 ))) ... ... @@ -360,25 +360,21 @@ 360 360 **DOWNLINK** 361 361 362 362 363 - 364 364 [[image:image-20220601143803-3.png]] 365 365 366 366 **DOWNLINK** 367 367 368 368 369 - 370 370 [[image:image-20220601144053-5.png]] 371 371 372 372 **DOWNLINK** 373 373 374 374 375 - 376 376 [[image:image-20220601143921-4.png]] 377 377 378 378 **DOWNLINK** 379 379 380 380 381 - 382 382 [[image:image-20220601142805-5.png]] 383 383 384 384 **DOWNLINK** ... ... @@ -405,8 +405,6 @@ 405 405 406 406 ((( 407 407 check digit: Even 408 - 409 - 410 410 ))) 411 411 412 412 [[image:image-20220527093708-21.png]] ... ... @@ -414,7 +414,6 @@ 414 414 **USB** 415 415 416 416 417 - 418 418 [[image:image-20220527093747-22.png]] 419 419 420 420 **USB** ... ... @@ -440,7 +440,6 @@ 440 440 **USB** 441 441 442 442 443 - 444 444 === 1.3.5 How to configure multiple devices and modify device addresses === 445 445 446 446 ... ... @@ -565,7 +565,22 @@ 565 565 566 566 [[image:image-20220527094556-31.png]] 567 567 547 + 568 568 Network Structure 569 569 570 - 571 571 * [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]] 551 + 552 + 553 + 554 +== 1.8 Example 8: This sketch is supposed to test Dragino RS485-BL (Modbus master), using an Arduino UNO as a Modbus slave. == 555 + 556 + 557 +This sketch uses 4 registers: some of them can be set by Dragino with a command, another is used to store value from a DS18B20 temperature sensor, or a random generated number. All data is 16bit uint, but the sketch shows also how to represent booleans and negative numbers. 558 + 559 +In the next days I will be adding more documentation, but I think it already explains users how to build their own modbus sensor to pair with Dragino RS485-BL. 560 + 561 +This is released the code under GNU LGPL licence on Github: 562 + 563 +[[https:~~/~~/github.com/zorbaproject/ArduinoModbusForDraginoRS485>>url:https://github.com/zorbaproject/ArduinoModbusForDraginoRS485]] 564 + 565 +