Last modified by Karry Zhuang on 2024/07/11 11:58
<
From version < 57.9 >
edited by Xiaoling
on 2022/07/14 09:34
To version < 61.1 >
edited by Bei Jinggeng
on 2023/08/08 15:16
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Author
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1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
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1 -(% class="wikigeneratedid" %)
2 -*
3 -** Table of** **Contents:
1 +**Table of Contents:**
4 4  
5 5  {{toc/}}
6 6  
... ... @@ -9,75 +9,85 @@
9 9  
10 10  
11 11  
12 -= **1. Introduction** =
10 += 1. Introduction =
13 13  
14 14  
15 15  This article provide the examples for RS485-LN to connect to different type of RS485 sensors.
16 16  
17 17  
18 -== **1.1 Example 1: Connect to Leak relay and VFD** ==
16 +== 1.1 Example 1: Connect to Leak relay and VFD ==
19 19  
20 20  
21 21  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:
22 22  
23 -[[image:image-20220527091852-1.png]]
24 24  
25 -Connection
22 +[[image:image-20220527091852-1.png||height="547" width="994"]]
26 26  
24 +**Connection**
27 27  
28 28  
27 +
29 29  [[image:image-20220527091942-2.png]](% style="display:none" %)
30 30  
31 -Connection
30 +**Connection**
32 32  
33 33  
34 -Related documents:
33 +(% style="color:blue" %)**Related documents:**
35 35  
36 -* [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure
37 -* [[Configure Manual>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : Explanation on how to integrate to Node-red and to the Mobile Phone, and with link to the Github code.
35 +* System Structure:  [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
36 +
37 +* Explanation on how to integrate to Node-red and to the Mobile Phone, and with link to the Github code:  [[Configure Manual>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
38 +
38 38  * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
39 39  
40 -== **1.2 Example 2: Connect to Pulse Counter** ==
41 41  
42 +== 1.2 Example 2: Connect to Pulse Counter ==
42 42  
44 +
43 43  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:
44 44  
45 45  
46 -[[image:image-20220527092058-3.png]]
48 +[[image:image-20220527092058-3.png||height="552" width="905"]]
47 47  
48 -Connection
50 +**Connection**
49 49  
50 50  
51 51  
52 -[[image:image-20220527092146-4.png]]
54 +[[image:image-20220527092146-4.png||height="507" width="906"]]
53 53  
54 -Connection
56 +**Connection**
55 55  
56 56  
57 -* 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/]]
59 +(% style="color:blue" %)**Related documents:**
60 +
61 +* 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/||_mstmutation="1"]]
62 +
58 58  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
59 59  
60 -== **1.3 Example3: Use RS485-LN with energy meters** ==
61 61  
62 -=== **1.3.1 OverView** ===
66 +== 1.3 Example 3: Use RS485-LN with energy meters ==
63 63  
68 +=== 1.3.1 OverView ===
64 64  
70 +
65 65  (((
66 -(% style="color:red" %)**Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
72 +(% style="color:red" %)**Note**：**The specifications of each energy meter are different, please refer to your own energy meter specifications.**
67 67  )))
68 68  
69 69  (((
70 70  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
77 +
78 +
71 71  )))
72 72  
73 73  [[image:image-20220527092419-5.png]]
74 74  
75 -Connection1
83 +**Connection1**
76 76  
77 77  
78 78  
79 79  (((
80 -**How to connect with Energy Meter：**
88 +(% style="color:blue" %)**How to connect with Energy Meter：**
81 81  
82 82  
83 83  )))
... ... @@ -91,29 +91,31 @@
91 91  )))
92 92  
93 93  (((
94 -Power Source VIN to RS485-LN VIN+
102 +Power Source **VIN** to RS485-LN **VIN+**
95 95  )))
96 96  
97 97  (((
98 -Power Source GND to RS485-LN VIN-
106 +Power Source **GND** to RS485-LN **VIN-**
99 99  )))
100 100  
101 101  (((
102 102  Once there is power, the RS485-LN will be on.
111 +
112 +
103 103  )))
104 104  
105 105  [[image:image-20220527092514-6.png]]
106 106  
107 -Connection2
117 +**Connection2**
108 108  
109 109  
110 110  
111 111  [[image:image-20220527092555-7.png]]
112 112  
113 -Connection3
123 +**Connection3**
114 114  
115 115  
116 -=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
126 +=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
117 117  
118 118  
119 119  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.
... ... @@ -124,9 +124,13 @@
124 124  (% style="color:blue" %)**Example:**(%%)  AT+COMMAND1=01 03 00 00 00 01 84 0A
125 125  
126 126  * The first byte : slave address code (=001～247)
137 +
127 127  * The second byte : read register value function code
139 +
128 128  * 3rd and 4th bytes: start address of register to be read
141 +
129 129  * 5th and 6th bytes: Number of registers to read
143 +
130 130  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
131 131  
132 132  (((
... ... @@ -139,23 +139,21 @@
139 139  )))
140 140  
141 141  * The first byte ARD: slave address code (=001～254)
156 +
142 142  * The second byte: Return to read function code
158 +
143 143  * 3rd byte: total number of bytes
160 +
144 144  * 4th～5th bytes: register data
162 +
145 145  * The 6th and 7th bytes: CRC16 checksum
164 +
146 146  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
147 147  
148 -(% class="wikigeneratedid" %)
149 -(((
150 -
151 151  
168 +=== 1.3.3 How to configure RS485-LN and parse output commands ===
152 152  
153 -
154 -)))
155 155  
156 -=== **1.3.3 How to configure RS485-LN and parse output commands** ===
157 -
158 -
159 159  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
160 160  
161 161  
... ... @@ -166,16 +166,18 @@
166 166  
167 167  (((
168 168  If the configured parameters and commands are incorrect, the return value is not obtained.
181 +
182 +
169 169  )))
170 170  
171 171  [[image:image-20220601143201-9.png]]
172 172  
173 -AT COMMAND
187 +**AT COMMAND**
174 174  
175 175  
176 176  (% class="box infomessage" %)
177 177  (((
178 - **AT+DATACUTx **:  This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
192 + (% _mstmutation="1" %)**AT+DATACUTx **(%%):  This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
179 179  )))
180 180  
181 181  a:  length for the return of AT+COMMAND
... ... @@ -186,16 +186,15 @@
186 186  
187 187  [[image:image-20220601143115-8.png]]
188 188  
189 -AT COMMAND
203 +**AT COMMAND**
190 190  
191 191  
192 192  
193 193  PAYLOAD is available after the valid value is intercepted.
194 194  
195 -
196 196  [[image:image-20220601143046-7.png]]
197 197  
198 -AT COMMAND
211 +**AT COMMAND**
199 199  
200 200  
201 201  
... ... @@ -204,7 +204,7 @@
204 204  [[image:image-20220601143519-1.png]]
205 205  
206 206  (((
207 -AT COMMAND
220 +**AT COMMAND**
208 208  )))
209 209  
210 210  (((
... ... @@ -214,7 +214,7 @@
214 214  (((
215 215  (% style="color:blue" %)**Example**:
216 216  
217 -CMD1: Read current data with MODBUS command. address: 0x03 AT+COMMAND1= 01 03 00 03 00 01,1
230 +(% style="color:red" %)**CMD1:**(%%) Read current data with MODBUS command. address: 0x03 AT+COMMAND1= 01 03 00 03 00 01,1
218 218  )))
219 219  
220 220  (((
... ... @@ -228,7 +228,7 @@
228 228  )))
229 229  
230 230  (((
231 -CMD2: Read voltage data with MODBUS command. address: 0x00 AT+COMMAND2= 01 03 00 00 00 01,1
244 +(% style="color:red" %)**CMD2: **(%%)Read voltage data with MODBUS command. address: 0x00 AT+COMMAND2= 01 03 00 00 00 01,1
232 232  )))
233 233  
234 234  (((
... ... @@ -242,7 +242,7 @@
242 242  )))
243 243  
244 244  (((
245 -CMD3: Read total active energy data with MODBUS command. address: 0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
258 +(% style="color:red" %)**CMD3:**(%%) Read total active energy data with MODBUS command. address: 0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
246 246  )))
247 247  
248 248  (((
... ... @@ -262,8 +262,8 @@
262 262  AT COMMAND
263 263  
264 264  
265 -(% 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.**
266 266  
279 +(% style="color:blue" %)**01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.**
267 267  
268 268  
269 269  [[image:image-20220601143642-2.png]]
... ... @@ -271,6 +271,7 @@
271 271  AT COMMAND
272 272  
273 273  
287 +
274 274  ==== **1.3.3.2 via LoRaWAN DOWNLINK** ====
275 275  
276 276  
... ... @@ -277,15 +277,13 @@
277 277  [[image:image-20220527093358-15.png]]
278 278  
279 279  (((
280 -DOWNLINK
294 +**DOWNLINK**
281 281  )))
282 282  
283 -(((
284 -
285 -)))
286 286  
298 +
287 287  (((
288 -(% style="color:#4f81bd" %)**Type Code 0xAF**
300 +(% style="color:blue" %)**Type Code 0xAF**
289 289  )))
290 290  
291 291  (((
... ... @@ -296,7 +296,7 @@
296 296  )))
297 297  
298 298  (((
299 -Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
311 +(% style="color:red" %)**Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
300 300  )))
301 301  
302 302  (((
... ... @@ -331,10 +331,9 @@
331 331  will execute an uplink after got this command.
332 332  )))
333 333  
334 -(((
335 -
336 336  
337 -(% style="color:#4f81bd" %)**Example:**
347 +(((
348 +(% style="color:blue" %)**Example:**
338 338  )))
339 339  
340 340  (((
... ... @@ -343,35 +343,36 @@
343 343  
344 344  [[image:image-20220601144149-6.png]]
345 345  
346 -DOWNLINK
357 +**DOWNLINK**
347 347  
348 348  
349 349  
350 350  [[image:image-20220601143803-3.png]]
351 351  
352 -DOWNLINK
363 +**DOWNLINK**
353 353  
354 354  
355 355  
356 356  [[image:image-20220601144053-5.png]]
357 357  
358 -DOWNLINK
369 +**DOWNLINK**
359 359  
360 360  
361 361  
362 362  [[image:image-20220601143921-4.png]]
363 363  
364 -DOWNLINK
375 +**DOWNLINK**
365 365  
366 366  
367 367  
368 368  [[image:image-20220601142805-5.png]]
369 369  
370 -DOWNLINK
371 -
381 +**DOWNLINK**
372 372  
373 -=== **1.3.4 How to configure and output commands for RS485 to USB** ===
374 374  
384 +=== 1.3.4 How to configure and output commands for RS485 to USB ===
385 +
386 +
375 375  (((
376 376  This step is not necessary, it is just to show how to use a normal RS485 to USB adapter to connect to the meter to check the input and output. This can be used to test the connection and RS485 command of the meter without RS485-LN.
377 377  )))
... ... @@ -390,17 +390,19 @@
390 390  
391 391  (((
392 392  check digit: Even
405 +
406 +
393 393  )))
394 394  
395 395  [[image:image-20220527093708-21.png]]
396 396  
397 -USB
411 +**USB**
398 398  
399 399  
400 400  
401 401  [[image:image-20220527093747-22.png]]
402 402  
403 -USB
417 +**USB**
404 404  
405 405  
406 406  
... ... @@ -409,20 +409,24 @@
409 409  )))
410 410  
411 411  (((
412 -(% style="color:#4f81bd" %)**Example:**  (%%)input：01 03 00 31 00 02 95 c4
426 +(% style="color:blue" %)**Example:**  (%%)input：01 03 00 31 00 02 95 c4
413 413  )))
414 414  
415 415  (((
416 416   output：01 03 04 00 00 00 42 7A 02
431 +
432 +
417 417  )))
418 418  
419 419  [[image:image-20220527093821-23.png]]
420 420  
421 -USB
437 +**USB**
422 422  
423 423  
424 -=== **1.3.5 How to configure multiple devices and modify device addresses** ===
425 425  
441 +=== 1.3.5 How to configure multiple devices and modify device addresses ===
442 +
443 +
426 426  If users need to read the parameters of multiple energy meters, they need to modify the device address, because the default device address of each energy meter is 01.
427 427  
428 428  (((
... ... @@ -434,13 +434,15 @@
434 434  [[image:image-20220601142044-1.png]]
435 435  
436 436  
437 -**Example**:These two meters are examples of setting parameters and device addresses.
455 +(% style="color:blue" %)**Example**(%%): These two meters are examples of setting parameters and device addresses.
438 438  
457 +
439 439  [[image:image-20220527093950-25.png]]
440 440  
441 441  
442 442  [[image:image-20220527094028-26.png]]
443 443  
463 +
444 444  (((
445 445  (((
446 446  First of all, since the default device address of the energy meter is 01, the configuration of two energy meters will conflict, so we first connect an energy meter and configure the device address.
... ... @@ -449,7 +449,7 @@
449 449  
450 450  (((
451 451  (((
452 -We can use AT+CFGDEV to set the device address.
472 +We can use (% style="color:blue" %)**AT+CFGDEV**(%%) to set the device address.
453 453  )))
454 454  )))
455 455  
... ... @@ -461,14 +461,15 @@
461 461  
462 462  [[image:image-20220601142354-2.png]]
463 463  
484 +
464 464  (% class="box infomessage" %)
465 465  (((
466 466  **AT+CFGDEV:01 10 00 61 00 01 02 00 02,1**
467 467  )))
468 468  
469 -* 01:device adaress
490 +* 01: device adaress
470 470  
471 -* 10:function code
492 +* 10: function code
472 472  
473 473  * 00 61：Register address
474 474  
... ... @@ -491,39 +491,68 @@
491 491  
492 492  [[image:image-20220601142607-4.png]]
493 493  
494 -**PAYLOAD:01 08 DF 43 62**
495 495  
516 +(% style="color:blue" %)**PAYLOAD: 01 08 DF 43 62**
517 +
496 496  * 08 DF is the valid value of the meter with device address 02.
497 497  * 43 62 is the valid value of the meter with device address 01.
498 498  
521 +(% style="display:none" %) (%%)
522 +
523 +
499 499  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
500 500  
501 -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 SCHNEIDER SMART and Monitor and control your cabinet remotely with no wires and with Dragino RS485-LN LoRaWAN technology. The structure is like below:
502 502  
527 +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 SCHNEIDER SMART and Monitor and control your cabinet remotely with no wires and with Dragino RS485-LN LoRaWAN technology.
528 +
529 +The structure is like below:
530 +
503 503  [[image:image-20220527094330-30.png]]
504 504  
505 -Connection
533 +**Connection**
506 506  
507 -* [[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
508 508  
536 +* Configure Documen:  [[Circuit Breaker Remote Open Close>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Circuit_Breaker_Remote_Open_Close/||_mstmutation="1"]]
537 +
538 +
509 509  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
510 510  
541 +
511 511  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:
512 512  
513 -* [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Application_Note/&file=Dragino%20RS485BL%20and%20pickdata%20SEM%20Three%20v1.pdf]] : Configure Document For RS485-BL
544 +* Configure Document For RS485-BL:  [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Application_Note/&file=Dragino%20RS485BL%20and%20pickdata%20SEM%20Three%20v1.pdf||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
514 514  
515 -* [[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
546 +* Configure Document for RS485-LN:  [[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||_mstmutation="1"]]
516 516  
517 -== 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN ==
518 518  
549 +== 1.6 Example 6: CEM C31 485-T1-MID Energy Meter with RS485-LN ==
550 +
551 +
519 519  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:
520 520  
521 -* [[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
554 +* Configure Document For RS485-LN:  [[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||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
522 522  
523 -== 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL ==
524 524  
557 +== 1.7 Example 7: Schneider Electric PLC M221 with RS485-BL ==
558 +
559 +
525 525  [[image:image-20220527094556-31.png]]
526 526  
562 +
527 527  Network Structure
528 528  
529 529  * [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]]
566 +
567 +== ==
568 +
569 +== 1.8  Example 8: This sketch is supposed to test Dragino RS485-BL (Modbus master), using an Arduino UNO as a Modbus slave. ==
570 +
571 +This sketch uses 4 registers: some of them can be set by Dragino with a command, another is used to store value from a DS18B20 temperature sensor, or a random generated number. All data is 16bit uint, but the sketch shows also how to represent booleans and negative numbers.
572 +
573 +In the next days I will be adding more documentation, but I think it already explains users how to build their own modbus sensor to pair with Dragino RS485-BL.
574 +
575 +This is released the code under GNU LGPL licence on Github:
576 +
577 +[[https:~~/~~/github.com/zorbaproject/ArduinoModbusForDraginoRS485>>url:https://github.com/zorbaproject/ArduinoModbusForDraginoRS485]]
578 +
579 +

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