Last modified by Karry Zhuang on 2024/07/11 11:58
<
From version < 57.11 >
edited by Xiaoling
on 2022/07/14 09:44
To version < 74.1 >
edited by Karry Zhuang
on 2024/07/11 11:54
>
Change comment: Uploaded new attachment "1720670079781-764.png", version {1}

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Author
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1 -XWiki.Xiaoling
1 +XWiki.karry
Content
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1 -(% class="wikigeneratedid" %)
2 -*
3 -** Table of** **Contents:
1 +**Table of Contents:**
4 4  
5 5  {{toc/}}
6 6  
... ... @@ -9,61 +9,67 @@
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  
29 29  [[image:image-20220527091942-2.png]](% style="display:none" %)
30 30  
31 -Connection
29 +**Connection**
32 32  
33 33  
34 -Related documents:
32 +(% 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.
34 +* 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);"]]
35 +
36 +* 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);"]]
37 +
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  
41 +== 1.2 Example 2: Connect to Pulse Counter ==
42 42  
43 +
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]]
47 +[[image:image-20220527092058-3.png||height="552" width="905"]]
47 47  
48 -Connection
49 +**Connection**
49 49  
50 50  
52 +[[image:image-20220527092146-4.png||height="507" width="906"]]
51 51  
52 -[[image:image-20220527092146-4.png]]
54 +**Connection**
53 53  
54 -Connection
55 55  
57 +(% style="color:blue" %)**Related documents:**
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 +* 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"]]
60 +
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** ===
64 +== 1.3 Example 3: Use RS485-LN with energy meters ==
63 63  
66 +=== 1.3.1 OverView ===
64 64  
68 +
65 65  (((
66 -(% style="color:red" %)**Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
70 +(% 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  (((
... ... @@ -72,12 +72,11 @@
72 72  
73 73  [[image:image-20220527092419-5.png]]
74 74  
75 -Connection1
79 +**Connection1**
76 76  
77 77  
78 -
79 79  (((
80 -**How to connect with Energy Meter：**
83 +(% style="color:blue" %)**How to connect with Energy Meter：**
81 81  
82 82  
83 83  )))
... ... @@ -91,11 +91,11 @@
91 91  )))
92 92  
93 93  (((
94 -Power Source VIN to RS485-LN VIN+
97 +Power Source **VIN** to RS485-LN **VIN+**
95 95  )))
96 96  
97 97  (((
98 -Power Source GND to RS485-LN VIN-
101 +Power Source **GND** to RS485-LN **VIN-**
99 99  )))
100 100  
101 101  (((
... ... @@ -104,16 +104,15 @@
104 104  
105 105  [[image:image-20220527092514-6.png]]
106 106  
107 -Connection2
110 +**Connection2**
108 108  
109 109  
110 -
111 111  [[image:image-20220527092555-7.png]]
112 112  
113 -Connection3
115 +**Connection3**
114 114  
115 115  
116 -=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
118 +=== 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)
129 +
127 127  * The second byte : read register value function code
131 +
128 128  * 3rd and 4th bytes: start address of register to be read
133 +
129 129  * 5th and 6th bytes: Number of registers to read
135 +
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)
148 +
142 142  * The second byte: Return to read function code
150 +
143 143  * 3rd byte: total number of bytes
152 +
144 144  * 4th～5th bytes: register data
154 +
145 145  * The 6th and 7th bytes: CRC16 checksum
156 +
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  
160 +=== 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.
173 +
174 +
169 169  )))
170 170  
171 171  [[image:image-20220601143201-9.png]]
172 172  
173 -AT COMMAND
179 +**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
184 + (% _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
... ... @@ -186,25 +186,22 @@
186 186  
187 187  [[image:image-20220601143115-8.png]]
188 188  
189 -AT COMMAND
195 +**AT COMMAND**
190 190  
191 191  
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
202 +**AT COMMAND**
199 199  
200 200  
201 -
202 202  You can get configured PAYLOAD on TTN.
203 203  
204 204  [[image:image-20220601143519-1.png]]
205 205  
206 206  (((
207 -AT COMMAND
210 +**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
220 +(% 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
234 +(% 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
248 +(% 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  (((
... ... @@ -262,7 +262,7 @@
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.**
268 +(% 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.**
266 266  
267 267  
268 268  [[image:image-20220601143642-2.png]]
... ... @@ -276,15 +276,12 @@
276 276  [[image:image-20220527093358-15.png]]
277 277  
278 278  (((
279 -DOWNLINK
282 +**DOWNLINK**
280 280  )))
281 281  
282 -(((
283 -
284 -)))
285 285  
286 286  (((
287 -(% style="color:#4f81bd" %)**Type Code 0xAF**
287 +(% style="color:blue" %)**Type Code 0xAF**
288 288  )))
289 289  
290 290  (((
... ... @@ -295,7 +295,7 @@
295 295  )))
296 296  
297 297  (((
298 -(% style="color:red" %)Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
298 +(% style="color:red" %)**Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
299 299  )))
300 300  
301 301  (((
... ... @@ -330,9 +330,8 @@
330 330  will execute an uplink after got this command.
331 331  )))
332 332  
333 -(((
334 -
335 335  
334 +(((
336 336  (% style="color:blue" %)**Example:**
337 337  )))
338 338  
... ... @@ -342,35 +342,32 @@
342 342  
343 343  [[image:image-20220601144149-6.png]]
344 344  
345 -DOWNLINK
344 +**DOWNLINK**
346 346  
347 347  
348 -
349 349  [[image:image-20220601143803-3.png]]
350 350  
351 -DOWNLINK
349 +**DOWNLINK**
352 352  
353 353  
354 -
355 355  [[image:image-20220601144053-5.png]]
356 356  
357 -DOWNLINK
354 +**DOWNLINK**
358 358  
359 359  
360 -
361 361  [[image:image-20220601143921-4.png]]
362 362  
363 -DOWNLINK
359 +**DOWNLINK**
364 364  
365 365  
366 -
367 367  [[image:image-20220601142805-5.png]]
368 368  
369 -DOWNLINK
370 -
364 +**DOWNLINK**
371 371  
372 -=== **1.3.4 How to configure and output commands for RS485 to USB** ===
373 373  
367 +=== 1.3.4 How to configure and output commands for RS485 to USB ===
368 +
369 +
374 374  (((
375 375  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.
376 376  )))
... ... @@ -389,26 +389,21 @@
389 389  
390 390  (((
391 391  check digit: Even
392 -
393 -
394 394  )))
395 395  
396 396  [[image:image-20220527093708-21.png]]
397 397  
398 -USB
392 +**USB**
399 399  
400 400  
401 -
402 402  [[image:image-20220527093747-22.png]]
403 403  
404 -USB
397 +**USB**
405 405  
406 406  
407 407  
408 408  (((
409 409  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.
410 -
411 -
412 412  )))
413 413  
414 414  (((
... ... @@ -423,10 +423,10 @@
423 423  
424 424  [[image:image-20220527093821-23.png]]
425 425  
426 -USB
417 +**USB**
427 427  
428 428  
429 -=== **1.3.5 How to configure multiple devices and modify device addresses** ===
420 +=== 1.3.5 How to configure multiple devices and modify device addresses ===
430 430  
431 431  
432 432  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.
... ... @@ -442,11 +442,13 @@
442 442  
443 443  (% style="color:blue" %)**Example**(%%): These two meters are examples of setting parameters and device addresses.
444 444  
436 +
445 445  [[image:image-20220527093950-25.png]]
446 446  
447 447  
448 448  [[image:image-20220527094028-26.png]]
449 449  
442 +
450 450  (((
451 451  (((
452 452  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.
... ... @@ -455,7 +455,7 @@
455 455  
456 456  (((
457 457  (((
458 -We can use AT+CFGDEV to set the device address.
451 +We can use (% style="color:blue" %)**AT+CFGDEV**(%%) to set the device address.
459 459  )))
460 460  )))
461 461  
... ... @@ -467,14 +467,15 @@
467 467  
468 468  [[image:image-20220601142354-2.png]]
469 469  
463 +
470 470  (% class="box infomessage" %)
471 471  (((
472 472  **AT+CFGDEV:01 10 00 61 00 01 02 00 02,1**
473 473  )))
474 474  
475 -* 01:device adaress
469 +* 01: device adaress
476 476  
477 -* 10:function code
471 +* 10: function code
478 478  
479 479  * 00 61：Register address
480 480  
... ... @@ -497,39 +497,77 @@
497 497  
498 498  [[image:image-20220601142607-4.png]]
499 499  
500 -**PAYLOAD:01 08 DF 43 62**
501 501  
495 +(% style="color:blue" %)**PAYLOAD: 01 08 DF 43 62**
496 +
502 502  * 08 DF is the valid value of the meter with device address 02.
503 503  * 43 62 is the valid value of the meter with device address 01.
504 504  
500 +(% style="display:none" %) (%%)
501 +
502 +
505 505  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
506 506  
507 -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:
508 508  
506 +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.
507 +
508 +The structure is like below:
509 +
509 509  [[image:image-20220527094330-30.png]]
510 510  
511 -Connection
512 +**Connection**
512 512  
513 -* [[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
514 514  
515 +* 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"]]
516 +
517 +
515 515  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
516 516  
520 +
517 517  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:
518 518  
519 -* [[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
523 +* 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);"]]
520 520  
521 -* [[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
525 +* 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"]]
522 522  
523 -== 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN ==
524 524  
528 +== 1.6 Example 6: CEM C31 485-T1-MID Energy Meter with RS485-LN ==
529 +
530 +
525 525  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:
526 526  
527 -* [[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
533 +* 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);"]]
528 528  
529 -== 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL ==
530 530  
536 +== 1.7 Example 7: Schneider Electric PLC M221 with RS485-BL ==
537 +
538 +
531 531  [[image:image-20220527094556-31.png]]
532 532  
541 +
533 533  Network Structure
534 534  
535 535  * [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]]
545 +
546 +
547 +== 1.8 Example 8: This sketch is supposed to test Dragino RS485-BL (Modbus master), using an Arduino UNO as a Modbus slave. ==
548 +
549 +
550 +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.
551 +
552 +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.
553 +
554 +This is released the code under GNU LGPL licence on Github:
555 +
556 +[[https:~~/~~/github.com/zorbaproject/ArduinoModbusForDraginoRS485>>url:https://github.com/zorbaproject/ArduinoModbusForDraginoRS485]]
557 +
558 +
559 +== 1.9 Example 9: RS485-LN and ultrasonic flow meter transmission data ==
560 +
561 +
562 +It shows how to use RS485-LN to connect to an ultrasonic flow meter and read the data from the ultrasonic flow meter.
563 +
564 +
565 +
566 +* **Specific steps**:  RS485-LN with ultrasonic flow meter
567 +*
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