Last modified by Karry Zhuang on 2024/07/11 11:58
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... ... @@ -24,6 +24,7 @@ 24 24 **Connection** 25 25 26 26 27 + 27 27 [[image:image-20220527091942-2.png]](% style="display:none" %) 28 28 29 29 **Connection** ... ... @@ -49,6 +49,7 @@ 49 49 **Connection** 50 50 51 51 53 + 52 52 [[image:image-20220527092146-4.png||height="507" width="906"]] 53 53 54 54 **Connection** ... ... @@ -72,6 +72,8 @@ 72 72 73 73 ((( 74 74 This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter. 77 + 78 + 75 75 ))) 76 76 77 77 [[image:image-20220527092419-5.png]] ... ... @@ -79,6 +79,7 @@ 79 79 **Connection1** 80 80 81 81 86 + 82 82 ((( 83 83 (% style="color:blue" %)**How to connect with Energy Meter：** 84 84 ... ... @@ -103,6 +103,8 @@ 103 103 104 104 ((( 105 105 Once there is power, the RS485-LN will be on. 111 + 112 + 106 106 ))) 107 107 108 108 [[image:image-20220527092514-6.png]] ... ... @@ -110,6 +110,7 @@ 110 110 **Connection2** 111 111 112 112 120 + 113 113 [[image:image-20220527092555-7.png]] 114 114 115 115 **Connection3** ... ... @@ -195,6 +195,7 @@ 195 195 **AT COMMAND** 196 196 197 197 206 + 198 198 PAYLOAD is available after the valid value is intercepted. 199 199 200 200 [[image:image-20220601143046-7.png]] ... ... @@ -202,6 +202,7 @@ 202 202 **AT COMMAND** 203 203 204 204 214 + 205 205 You can get configured PAYLOAD on TTN. 206 206 207 207 [[image:image-20220601143519-1.png]] ... ... @@ -265,6 +265,7 @@ 265 265 AT COMMAND 266 266 267 267 278 + 268 268 (% 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.** 269 269 270 270 ... ... @@ -273,6 +273,7 @@ 273 273 AT COMMAND 274 274 275 275 287 + 276 276 ==== **1.3.3.2 via LoRaWAN DOWNLINK** ==== 277 277 278 278 ... ... @@ -283,6 +283,7 @@ 283 283 ))) 284 284 285 285 298 + 286 286 ((( 287 287 (% style="color:blue" %)**Type Code 0xAF** 288 288 ))) ... ... @@ -344,21 +344,25 @@ 344 344 **DOWNLINK** 345 345 346 346 360 + 347 347 [[image:image-20220601143803-3.png]] 348 348 349 349 **DOWNLINK** 350 350 351 351 366 + 352 352 [[image:image-20220601144053-5.png]] 353 353 354 354 **DOWNLINK** 355 355 356 356 372 + 357 357 [[image:image-20220601143921-4.png]] 358 358 359 359 **DOWNLINK** 360 360 361 361 378 + 362 362 [[image:image-20220601142805-5.png]] 363 363 364 364 **DOWNLINK** ... ... @@ -385,6 +385,8 @@ 385 385 386 386 ((( 387 387 check digit: Even 405 + 406 + 388 388 ))) 389 389 390 390 [[image:image-20220527093708-21.png]] ... ... @@ -392,6 +392,7 @@ 392 392 **USB** 393 393 394 394 414 + 395 395 [[image:image-20220527093747-22.png]] 396 396 397 397 **USB** ... ... @@ -417,6 +417,7 @@ 417 417 **USB** 418 418 419 419 440 + 420 420 === 1.3.5 How to configure multiple devices and modify device addresses === 421 421 422 422 ... ... @@ -543,10 +543,10 @@ 543 543 544 544 * [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]] 545 545 567 +== == 546 546 547 -== 1.8 Example 8: This sketch is supposed to test Dragino RS485-BL (Modbus master), using an Arduino UNO as a Modbus slave. == 569 +== 1.8 Example 8: This sketch is supposed to test Dragino RS485-BL (Modbus master), using an Arduino UNO as a Modbus slave. == 548 548 549 - 550 550 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. 551 551 552 552 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. ... ... @@ -555,13 +555,4 @@ 555 555 556 556 [[https:~~/~~/github.com/zorbaproject/ArduinoModbusForDraginoRS485>>url:https://github.com/zorbaproject/ArduinoModbusForDraginoRS485]] 557 557 558 - 559 -== 1.9 Example 9: RS485-LN and ultrasonic flow meter transmission data == 560 - 561 - 562 -It shows how to use RS485-LN to connect to an ultrasonic flow meter and read the data from the ultrasonic flow meter. 563 - 564 - 565 - 566 -* **Specific steps**: RS485-LN with ultrasonic flow meter 567 -* 579 +
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