Last modified by Karry Zhuang on 2024/07/11 11:58
<
From version < 79.1 >
edited by Karry Zhuang
on 2024/07/11 11:55
To version < 61.1 >
edited by Bei Jinggeng
on 2023/08/08 15:16
>
Change comment: There is no comment for this version

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1 -XWiki.karry
1 +XWiki.Bei
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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**
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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]]
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79 79  **Connection1**
80 80  
81 81  
86 +
82 82  (((
83 83  (% style="color:blue" %)**How to connect with Energy Meter：**
84 84  
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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]]
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110 110  **Connection2**
111 111  
112 112  
120 +
113 113  [[image:image-20220527092555-7.png]]
114 114  
115 115  **Connection3**
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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]]
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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]]
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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  
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273 273  AT COMMAND
274 274  
275 275  
287 +
276 276  ==== **1.3.3.2 via LoRaWAN DOWNLINK** ====
277 277  
278 278  
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283 283  )))
284 284  
285 285  
298 +
286 286  (((
287 287  (% style="color:blue" %)**Type Code 0xAF**
288 288  )))
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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**
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385 385  
386 386  (((
387 387  check digit: Even
405 +
406 +
388 388  )))
389 389  
390 390  [[image:image-20220527093708-21.png]]
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392 392  **USB**
393 393  
394 394  
414 +
395 395  [[image:image-20220527093747-22.png]]
396 396  
397 397  **USB**
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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  
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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.
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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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