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8 8  
9 9  
10 10  
11 -= **1. Introduction** =
11 += 1. Introduction =
12 12  
13 13  This article provide the examples for RS485-LN to connect to different type of RS485 sensors.
14 14  
15 15  
16 -== **1.1 Example 1: Connect to Leak relay and VFD** ==
16 +== 1.1 Example 1: Connect to Leak relay and VFD ==
17 17  
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  
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36 36  
37 37  
38 38  
39 -== **1.2 Example 2: Connect to Pulse Counter** ==
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:
42 42  
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45 45  Connection
46 46  
47 47  
48 -
49 49  [[image:image-20220527092146-4.png]]
50 50  
51 51  Connection
52 52  
53 -
54 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
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 57  == ==
58 58  
59 -== **1.3 Example3: Use RS485-LN with energy meters** ==
57 +== 1.3 Example3: Use RS485-LN with energy meters ==
60 60  
61 -=== **1.3.1 OverView** ===
59 +=== 1.3.1 OverView ===
62 62  
63 63  (((
64 64  **Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
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73 73  Connection1
74 74  
75 75  
76 -
77 77  (((
78 78  How to connect with Energy Meter：
79 79  )))
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103 103  Connection2
104 104  
105 105  
106 -
107 107  [[image:image-20220527092555-7.png]]
108 108  
109 109  Connection3
110 110  
111 111  
112 -=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
108 +=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
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  
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171 171   AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
172 172  )))
173 173  
174 -a:  length for the return of AT+COMMAND
170 +a: length for the return of AT+COMMAND
175 175  
176 -b: 1: grab valid value by byte, max 6 bytes;  2: grab valid value by bytes section, max 3 sections.
172 +b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
177 177  
178 -c:  define the position for valid value.
174 +c: define the position for valid value.
179 179  
180 180  [[image:image-20220527092936-10.png]]
181 181  
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182 182  AT COMMAND
183 183  
184 184  
185 -
186 186  PAYLOAD is available after the valid value is intercepted.
187 187  
188 188  
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191 191  AT COMMAND
192 192  
193 193  
194 -
195 195  You can get configured PAYLOAD on TTN.
196 196  
197 197  [[image:image-20220527093133-12.png]]
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257 257  
258 258  (% 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.**
259 259  
260 -
261 -
262 262  [[image:image-20220527093251-14.png]]
263 263  
264 264  AT COMMAND
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324 324  )))
325 325  
326 326  (((
327 -
328 -
329 329  (% style="color:#4f81bd" %)**Example:**
330 330  )))
331 331  
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338 338  DOWNLINK
339 339  
340 340  
341 -
342 342  [[image:image-20220527093508-17.png]]
343 343  
344 344  DOWNLINK
345 345  
346 346  
347 -
348 348  [[image:image-20220527093530-18.png]]
349 349  
350 350  DOWNLINK
351 351  
352 352  
353 -
354 354  [[image:image-20220527093607-19.png]]
355 355  
356 356  DOWNLINK
357 357  
358 358  
346 +[[image:image-20220527093628-20.png]]
359 359  
360 -[[image:image-20220601142805-5.png]]
361 -
362 362  DOWNLINK
363 363  
364 364  
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389 389  USB
390 390  
391 391  
392 -
393 393  [[image:image-20220527093747-22.png]]
394 394  
395 395  USB
396 396  
397 397  
398 -
399 399  (((
400 400  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.
401 401  )))
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423 423  )))
424 424  )))
425 425  
426 -[[image:image-20220601142044-1.png]]
410 +[[image:image-20220527093849-24.png]]
427 427  
428 428  
429 429  **Example**:These two meters are examples of setting parameters and device addresses.
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450 450  )))
451 451  )))
452 452  
453 -[[image:image-20220601142354-2.png]]
437 +[[image:image-20220527094100-27.png]]
454 454  
455 455  (% class="box infomessage" %)
456 456  (((
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477 477  
478 478  Its default device address is 01, and the following are the parameters for configuring two energy meters.
479 479  
480 -[[image:image-20220601142452-3.png]]
464 +[[image:image-20220527094150-28.png]]
481 481  
482 482  
483 -[[image:image-20220601142607-4.png]]
467 +[[image:image-20220527094224-29.png]]
484 484  
485 485  **PAYLOAD:01 08 DF 43 62**
486 486  
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508 508  * [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/SEM_Three_Energy_Meter/&file=SEM%20three%20and%20Dragino%20RS485-LN%20v1.pdf]] : Configure Document for RS485-LN
509 509  
510 510  
511 -
512 512  == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN ==
513 513  
514 514  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 CEM C31 485-T1-MID and send the data for remote minitor. The structure is like below:
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516 516  * [[CEM C31 485-T1-MID>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/ELECTRICAL%20CABINET/&file=ELECTRICAL%20CABINET%20READINGS.pdf]] : Configure Document For RS485-LN
517 517  
518 518  
519 -
520 520  == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL ==
521 521  
522 522  [[image:image-20220527094556-31.png]]
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