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1 1  (% class="wikigeneratedid" %)
2 - **Contents:**
2 + ** Table of** **Contents:**
3 3  
4 4  {{toc/}}
5 5  
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10 10  
11 11  = **1. Introduction** =
12 12  
13 +
13 13  This article provide the examples for RS485-LN to connect to different type of RS485 sensors.
14 14  
15 15  
16 16  == **1.1 Example 1: Connect to Leak relay and VFD** ==
17 17  
19 +
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  
20 20  [[image:image-20220527091852-1.png]]
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36 36  
37 37  
38 38  
41 +
39 39  == **1.2 Example 2: Connect to Pulse Counter** ==
40 40  
44 +
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  
47 +
43 43  [[image:image-20220527092058-3.png]]
44 44  
45 45  Connection
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51 51  Connection
52 52  
53 53  
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
59 +* Configure Document: [[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/]]
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 -== ==
58 58  
63 +
64 +
59 59  == **1.3 Example3: Use RS485-LN with energy meters** ==
60 60  
61 61  === **1.3.1 OverView** ===
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73 73  Connection1
74 74  
75 75  
82 +
76 76  (((
77 77  How to connect with Energy Meter：
78 78  )))
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102 102  Connection2
103 103  
104 104  
112 +
105 105  [[image:image-20220527092555-7.png]]
106 106  
107 107  Connection3
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111 111  
112 112  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.
113 113  
114 -[[image:image-20220527092629-8.png]]
122 +[[image:image-20220601143257-10.png]]
115 115  
116 116  
117 117  (% class="box infomessage" %)
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159 159  If the configured parameters and commands are incorrect, the return value is not obtained.
160 160  )))
161 161  
162 -[[image:image-20220527092748-9.png]]
170 +[[image:image-20220601143201-9.png]]
163 163  
164 164  AT COMMAND
165 165  
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169 169   AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
170 170  )))
171 171  
172 -a: length for the return of AT+COMMAND
180 +a:  length for the return of AT+COMMAND
173 173  
174 -b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
182 +b: 1: grab valid value by byte, max 6 bytes;  2: grab valid value by bytes section, max 3 sections.
175 175  
176 -c: define the position for valid value.
184 +c:  define the position for valid value.
177 177  
178 -[[image:image-20220527092936-10.png]]
186 +[[image:image-20220601143115-8.png]]
179 179  
180 180  AT COMMAND
181 181  
182 182  
191 +
183 183  PAYLOAD is available after the valid value is intercepted.
184 184  
185 185  
186 -[[image:image-20220527093059-11.png]]
195 +[[image:image-20220601143046-7.png]]
187 187  
188 188  AT COMMAND
189 189  
190 190  
200 +
191 191  You can get configured PAYLOAD on TTN.
192 192  
193 -[[image:image-20220527093133-12.png]]
203 +[[image:image-20220601143519-1.png]]
194 194  
195 195  (((
196 196  AT COMMAND
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246 246  Payload:01 00 02 39 85 08 DC 00 00 00 44
247 247  )))
248 248  
249 -[[image:image-20220527093204-13.png]]
259 +[[image:image-20220601142936-6.png]]
250 250  
251 251  AT COMMAND
252 252  
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253 253  
254 254  (% 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.**
255 255  
256 -[[image:image-20220527093251-14.png]]
257 257  
267 +
268 +[[image:image-20220601143642-2.png]]
269 +
258 258  AT COMMAND
259 259  
260 260  
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318 318  )))
319 319  
320 320  (((
333 +
334 +
321 321  (% style="color:#4f81bd" %)**Example:**
322 322  )))
323 323  
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325 325  **AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
326 326  )))
327 327  
328 -[[image:image-20220527093430-16.png]]
342 +[[image:image-20220601144149-6.png]]
329 329  
330 330  DOWNLINK
331 331  
332 332  
333 -[[image:image-20220527093508-17.png]]
334 334  
348 +[[image:image-20220601143803-3.png]]
349 +
335 335  DOWNLINK
336 336  
337 337  
338 -[[image:image-20220527093530-18.png]]
339 339  
354 +[[image:image-20220601144053-5.png]]
355 +
340 340  DOWNLINK
341 341  
342 342  
343 -[[image:image-20220527093607-19.png]]
344 344  
360 +[[image:image-20220601143921-4.png]]
361 +
345 345  DOWNLINK
346 346  
347 347  
348 -[[image:image-20220527093628-20.png]]
349 349  
366 +[[image:image-20220601142805-5.png]]
367 +
350 350  DOWNLINK
351 351  
352 352  
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377 377  USB
378 378  
379 379  
398 +
380 380  [[image:image-20220527093747-22.png]]
381 381  
382 382  USB
383 383  
384 384  
404 +
385 385  (((
386 386  The configuration command is consistent with the AT command, input the hexadecimal command directly into the serial port, and the serial port will output the command.
387 387  )))
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409 409  )))
410 410  )))
411 411  
412 -[[image:image-20220527093849-24.png]]
432 +[[image:image-20220601142044-1.png]]
413 413  
414 414  
415 415  **Example**:These two meters are examples of setting parameters and device addresses.
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416 416  
417 417  [[image:image-20220527093950-25.png]]
418 418  
439 +
419 419  [[image:image-20220527094028-26.png]]
420 420  
421 421  (((
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436 436  )))
437 437  )))
438 438  
439 -[[image:image-20220527094100-27.png]]
460 +[[image:image-20220601142354-2.png]]
440 440  
441 441  (% class="box infomessage" %)
442 442  (((
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463 463  
464 464  Its default device address is 01, and the following are the parameters for configuring two energy meters.
465 465  
466 -[[image:image-20220527094150-28.png]]
487 +[[image:image-20220601142452-3.png]]
467 467  
468 468  
469 -[[image:image-20220527094224-29.png]]
490 +[[image:image-20220601142607-4.png]]
470 470  
471 471  **PAYLOAD:01 08 DF 43 62**
472 472  
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484 484  
485 485  * [[Circuit Breaker Remote Open Close>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Circuit_Breaker_Remote_Open_Close/]] : Configure Documen
486 486  
487 -
488 488  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
489 489  
490 490  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-BL to connect to SEM Three Energy Meter and send the data to mobile phone for remote minitor. The structure is like below:
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