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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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103 103  Connection2
104 104  
105 105  
112 +
106 106  [[image:image-20220527092555-7.png]]
107 107  
108 108  Connection3
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112 112  
113 113  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.
114 114  
115 -[[image:image-20220527092629-8.png]]
122 +[[image:image-20220601143257-10.png]]
116 116  
117 117  
118 118  (% class="box infomessage" %)
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160 160  If the configured parameters and commands are incorrect, the return value is not obtained.
161 161  )))
162 162  
163 -[[image:image-20220527092748-9.png]]
170 +[[image:image-20220601143201-9.png]]
164 164  
165 165  AT COMMAND
166 166  
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170 170   AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
171 171  )))
172 172  
173 -a: length for the return of AT+COMMAND
180 +a:  length for the return of AT+COMMAND
174 174  
175 -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.
176 176  
177 -c: define the position for valid value.
184 +c:  define the position for valid value.
178 178  
179 -[[image:image-20220527092936-10.png]]
186 +[[image:image-20220601143115-8.png]]
180 180  
181 181  AT COMMAND
182 182  
183 183  
191 +
184 184  PAYLOAD is available after the valid value is intercepted.
185 185  
186 186  
187 -[[image:image-20220527093059-11.png]]
195 +[[image:image-20220601143046-7.png]]
188 188  
189 189  AT COMMAND
190 190  
191 191  
200 +
192 192  You can get configured PAYLOAD on TTN.
193 193  
194 -[[image:image-20220527093133-12.png]]
203 +[[image:image-20220601143519-1.png]]
195 195  
196 196  (((
197 197  AT COMMAND
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247 247  Payload:01 00 02 39 85 08 DC 00 00 00 44
248 248  )))
249 249  
250 -[[image:image-20220527093204-13.png]]
259 +[[image:image-20220601142936-6.png]]
251 251  
252 252  AT COMMAND
253 253  
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254 254  
255 255  (% 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.**
256 256  
257 -[[image:image-20220527093251-14.png]]
258 258  
267 +
268 +[[image:image-20220601143642-2.png]]
269 +
259 259  AT COMMAND
260 260  
261 261  
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319 319  )))
320 320  
321 321  (((
333 +
334 +
322 322  (% style="color:#4f81bd" %)**Example:**
323 323  )))
324 324  
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326 326  **AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
327 327  )))
328 328  
329 -[[image:image-20220527093430-16.png]]
342 +[[image:image-20220601144149-6.png]]
330 330  
331 331  DOWNLINK
332 332  
333 333  
334 -[[image:image-20220527093508-17.png]]
335 335  
348 +[[image:image-20220601143803-3.png]]
349 +
336 336  DOWNLINK
337 337  
338 338  
339 -[[image:image-20220527093530-18.png]]
340 340  
354 +[[image:image-20220601144053-5.png]]
355 +
341 341  DOWNLINK
342 342  
343 343  
344 -[[image:image-20220527093607-19.png]]
345 345  
360 +[[image:image-20220601143921-4.png]]
361 +
346 346  DOWNLINK
347 347  
348 348  
349 -[[image:image-20220527093628-20.png]]
350 350  
366 +[[image:image-20220601142805-5.png]]
367 +
351 351  DOWNLINK
352 352  
353 353  
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378 378  USB
379 379  
380 380  
398 +
381 381  [[image:image-20220527093747-22.png]]
382 382  
383 383  USB
384 384  
385 385  
404 +
386 386  (((
387 387  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.
388 388  )))
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410 410  )))
411 411  )))
412 412  
413 -[[image:image-20220527093849-24.png]]
432 +[[image:image-20220601142044-1.png]]
414 414  
415 415  
416 416  **Example**:These two meters are examples of setting parameters and device addresses.
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417 417  
418 418  [[image:image-20220527093950-25.png]]
419 419  
439 +
420 420  [[image:image-20220527094028-26.png]]
421 421  
422 422  (((
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437 437  )))
438 438  )))
439 439  
440 -[[image:image-20220527094100-27.png]]
460 +[[image:image-20220601142354-2.png]]
441 441  
442 442  (% class="box infomessage" %)
443 443  (((
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464 464  
465 465  Its default device address is 01, and the following are the parameters for configuring two energy meters.
466 466  
467 -[[image:image-20220527094150-28.png]]
487 +[[image:image-20220601142452-3.png]]
468 468  
469 469  
470 -[[image:image-20220527094224-29.png]]
490 +[[image:image-20220601142607-4.png]]
471 471  
472 472  **PAYLOAD:01 08 DF 43 62**
473 473  
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485 485  
486 486  * [[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
487 487  
488 -
489 489  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
490 490  
491 491  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:
image-20220601142044-1.png
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