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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  
341 341  
342 -[[image:image-20220527093508-17.png]]
345 +[[image:image-20220601143803-3.png]]
343 343  
344 344  DOWNLINK
345 345  
346 346  
347 -[[image:image-20220527093530-18.png]]
348 348  
351 +[[image:image-20220601144053-5.png]]
352 +
349 349  DOWNLINK
350 350  
351 351  
352 -[[image:image-20220527093607-19.png]]
353 353  
357 +[[image:image-20220601143921-4.png]]
358 +
354 354  DOWNLINK
355 355  
356 356  
357 -[[image:image-20220527093628-20.png]]
358 358  
363 +[[image:image-20220601142805-5.png]]
364 +
359 359  DOWNLINK
360 360  
361 361  
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386 386  USB
387 387  
388 388  
395 +
389 389  [[image:image-20220527093747-22.png]]
390 390  
391 391  USB
392 392  
393 393  
401 +
394 394  (((
395 395  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.
396 396  )))
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418 418  )))
419 419  )))
420 420  
421 -[[image:image-20220527093849-24.png]]
429 +[[image:image-20220601142044-1.png]]
422 422  
423 423  
424 424  **Example**:These two meters are examples of setting parameters and device addresses.
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425 425  
426 426  [[image:image-20220527093950-25.png]]
427 427  
436 +
428 428  [[image:image-20220527094028-26.png]]
429 429  
430 430  (((
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445 445  )))
446 446  )))
447 447  
448 -[[image:image-20220527094100-27.png]]
457 +[[image:image-20220601142354-2.png]]
449 449  
450 450  (% class="box infomessage" %)
451 451  (((
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472 472  
473 473  Its default device address is 01, and the following are the parameters for configuring two energy meters.
474 474  
475 -[[image:image-20220527094150-28.png]]
484 +[[image:image-20220601142452-3.png]]
476 476  
477 477  
478 -[[image:image-20220527094224-29.png]]
487 +[[image:image-20220601142607-4.png]]
479 479  
480 480  **PAYLOAD:01 08 DF 43 62**
481 481  
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493 493  
494 494  * [[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
495 495  
496 -
497 497  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
498 498  
499 499  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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