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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 +
48 48  [[image:image-20220527092146-4.png]]
49 49  
50 50  Connection
51 51  
53 +
52 52  * [[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
53 53  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
54 54  
55 55  == ==
56 56  
57 -== 1.3 Example3: Use RS485-LN with energy meters ==
59 +== **1.3 Example3: Use RS485-LN with energy meters** ==
58 58  
59 -=== 1.3.1 OverView ===
61 +=== **1.3.1 OverView** ===
60 60  
61 61  (((
62 62  **Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
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71 71  Connection1
72 72  
73 73  
76 +
74 74  (((
75 75  How to connect with Energy Meter：
76 76  )))
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100 100  Connection2
101 101  
102 102  
106 +
103 103  [[image:image-20220527092555-7.png]]
104 104  
105 105  Connection3
106 106  
107 107  
108 -=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
112 +=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
109 109  
110 110  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.
111 111  
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167 167   AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
168 168  )))
169 169  
170 -a: length for the return of AT+COMMAND
174 +a:  length for the return of AT+COMMAND
171 171  
172 -b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
176 +b: 1: grab valid value by byte, max 6 bytes;  2: grab valid value by bytes section, max 3 sections.
173 173  
174 -c: define the position for valid value.
178 +c:  define the position for valid value.
175 175  
176 176  [[image:image-20220527092936-10.png]]
177 177  
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178 178  AT COMMAND
179 179  
180 180  
185 +
181 181  PAYLOAD is available after the valid value is intercepted.
182 182  
183 183  
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186 186  AT COMMAND
187 187  
188 188  
194 +
189 189  You can get configured PAYLOAD on TTN.
190 190  
191 191  [[image:image-20220527093133-12.png]]
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251 251  
252 252  (% 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.**
253 253  
260 +
261 +
254 254  [[image:image-20220527093251-14.png]]
255 255  
256 256  AT COMMAND
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316 316  )))
317 317  
318 318  (((
327 +
328 +
319 319  (% style="color:#4f81bd" %)**Example:**
320 320  )))
321 321  
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328 328  DOWNLINK
329 329  
330 330  
341 +
331 331  [[image:image-20220527093508-17.png]]
332 332  
333 333  DOWNLINK
334 334  
335 335  
347 +
336 336  [[image:image-20220527093530-18.png]]
337 337  
338 338  DOWNLINK
339 339  
340 340  
353 +
341 341  [[image:image-20220527093607-19.png]]
342 342  
343 343  DOWNLINK
344 344  
345 345  
359 +
346 346  [[image:image-20220527093628-20.png]]
347 347  
348 348  DOWNLINK
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375 375  USB
376 376  
377 377  
392 +
378 378  [[image:image-20220527093747-22.png]]
379 379  
380 380  USB
381 381  
382 382  
398 +
383 383  (((
384 384  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.
385 385  )))
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407 407  )))
408 408  )))
409 409  
410 -[[image:image-20220527093849-24.png]]
426 +[[image:image-20220601142044-1.png]]
411 411  
412 412  
413 413  **Example**:These two meters are examples of setting parameters and device addresses.
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491 491  
492 492  * [[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
493 493  
494 -
495 495  == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN ==
496 496  
497 497  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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498 498  
499 499  * [[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
500 500  
501 -
502 502  == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL ==
503 503  
504 504  [[image:image-20220527094556-31.png]]
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