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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  
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:
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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  
116 -[[image:image-20220527092629-8.png]]
119 +[[image:image-20220601143257-10.png]]
117 117  
118 118  
119 119  (% class="box infomessage" %)
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161 161  If the configured parameters and commands are incorrect, the return value is not obtained.
162 162  )))
163 163  
164 -[[image:image-20220527092748-9.png]]
167 +[[image:image-20220601143201-9.png]]
165 165  
166 166  AT COMMAND
167 167  
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177 177  
178 178  c:  define the position for valid value.
179 179  
180 -[[image:image-20220527092936-10.png]]
183 +[[image:image-20220601143115-8.png]]
181 181  
182 182  AT COMMAND
183 183  
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186 186  PAYLOAD is available after the valid value is intercepted.
187 187  
188 188  
189 -[[image:image-20220527093059-11.png]]
192 +[[image:image-20220601143046-7.png]]
190 190  
191 191  AT COMMAND
192 192  
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194 194  
195 195  You can get configured PAYLOAD on TTN.
196 196  
197 -[[image:image-20220527093133-12.png]]
200 +[[image:image-20220601143519-1.png]]
198 198  
199 199  (((
200 200  AT COMMAND
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250 250  Payload:01 00 02 39 85 08 DC 00 00 00 44
251 251  )))
252 252  
253 -[[image:image-20220527093204-13.png]]
256 +[[image:image-20220601142936-6.png]]
254 254  
255 255  AT COMMAND
256 256  
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259 259  
260 260  
261 261  
262 -[[image:image-20220527093251-14.png]]
265 +[[image:image-20220601143642-2.png]]
263 263  
264 264  AT COMMAND
265 265  
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333 333  **AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
334 334  )))
335 335  
336 -[[image:image-20220527093430-16.png]]
339 +[[image:image-20220601144149-6.png]]
337 337  
338 338  DOWNLINK
339 339  
340 340  
341 -[[image:image-20220527093508-17.png]]
342 342  
345 +[[image:image-20220601143803-3.png]]
346 +
343 343  DOWNLINK
344 344  
345 345  
346 -[[image:image-20220527093530-18.png]]
347 347  
351 +[[image:image-20220601144053-5.png]]
352 +
348 348  DOWNLINK
349 349  
350 350  
351 -[[image:image-20220527093607-19.png]]
352 352  
357 +[[image:image-20220601143921-4.png]]
358 +
353 353  DOWNLINK
354 354  
355 355  
356 -[[image:image-20220527093628-20.png]]
357 357  
363 +[[image:image-20220601142805-5.png]]
364 +
358 358  DOWNLINK
359 359  
360 360  
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385 385  USB
386 386  
387 387  
395 +
388 388  [[image:image-20220527093747-22.png]]
389 389  
390 390  USB
391 391  
392 392  
401 +
393 393  (((
394 394  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.
395 395  )))
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417 417  )))
418 418  )))
419 419  
420 -[[image:image-20220527093849-24.png]]
429 +[[image:image-20220601142044-1.png]]
421 421  
422 422  
423 423  **Example**:These two meters are examples of setting parameters and device addresses.
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424 424  
425 425  [[image:image-20220527093950-25.png]]
426 426  
436 +
427 427  [[image:image-20220527094028-26.png]]
428 428  
429 429  (((
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444 444  )))
445 445  )))
446 446  
447 -[[image:image-20220527094100-27.png]]
457 +[[image:image-20220601142354-2.png]]
448 448  
449 449  (% class="box infomessage" %)
450 450  (((
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471 471  
472 472  Its default device address is 01, and the following are the parameters for configuring two energy meters.
473 473  
474 -[[image:image-20220527094150-28.png]]
484 +[[image:image-20220601142452-3.png]]
475 475  
476 476  
477 -[[image:image-20220527094224-29.png]]
487 +[[image:image-20220601142607-4.png]]
478 478  
479 479  **PAYLOAD:01 08 DF 43 62**
480 480  
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492 492  
493 493  * [[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
494 494  
495 -
496 496  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
497 497  
498 498  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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