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From version < 60.7 >
edited by Xiaoling
on 2022/09/19 16:08
To version < 62.1 >
edited by Bei Jinggeng
on 2023/08/08 15:23
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Author
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1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
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7 7  
8 8  
9 9  
10 -= **1. Introduction** =
10 += 1. Introduction =
11 11  
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 16  
17 -== **1.1 Example 1: Connect to Leak relay and VFD** ==
18 18  
19 -
20 20  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:
21 21  
22 22  
23 -[[image:image-20220527091852-1.png]]
22 +[[image:image-20220527091852-1.png||height="547" width="994"]]
24 24  
25 -Connection
24 +**Connection**
26 26  
27 27  
28 28  
29 29  [[image:image-20220527091942-2.png]](% style="display:none" %)
30 30  
31 -Connection
30 +**Connection**
32 32  
33 33  
34 34  (% style="color:blue" %)**Related documents:**
35 35  
36 -* 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 +* 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 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  
41 +== 1.2 Example 2: Connect to Pulse Counter ==
40 40  
41 41  
42 -
43 -== **1.2 Example 2: Connect to Pulse Counter** ==
44 -
45 -
46 46  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:
47 47  
48 48  
49 -[[image:image-20220527092058-3.png]]
47 +[[image:image-20220527092058-3.png||height="552" width="905"]]
50 50  
51 -Connection
49 +**Connection**
52 52  
53 53  
54 54  
55 -[[image:image-20220527092146-4.png]]
53 +[[image:image-20220527092146-4.png||height="507" width="906"]]
56 56  
57 -Connection
55 +**Connection**
58 58  
59 59  
60 60  (% style="color:blue" %)**Related documents:**
61 61  
62 62  * 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"]]
61 +
63 63  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
64 64  
64 +== 1.3 Example 3: Use RS485-LN with energy meters ==
65 65  
66 +=== 1.3.1 OverView ===
66 66  
67 67  
68 -== **1.3 Example3: Use RS485-LN with energy meters** ==
69 -
70 -
71 -=== **1.3.1 OverView** ===
72 -
73 -
74 74  (((
75 75  (% style="color:red" %)**Note**：**The specifications of each energy meter are different, please refer to your own energy meter specifications.**
76 76  )))
... ... @@ -83,7 +83,7 @@
83 83  
84 84  [[image:image-20220527092419-5.png]]
85 85  
86 -Connection1
81 +**Connection1**
87 87  
88 88  
89 89  
... ... @@ -102,11 +102,11 @@
102 102  )))
103 103  
104 104  (((
105 -Power Source VIN to RS485-LN VIN+
100 +Power Source **VIN** to RS485-LN **VIN+**
106 106  )))
107 107  
108 108  (((
109 -Power Source GND to RS485-LN VIN-
104 +Power Source **GND** to RS485-LN **VIN-**
110 110  )))
111 111  
112 112  (((
... ... @@ -117,19 +117,18 @@
117 117  
118 118  [[image:image-20220527092514-6.png]]
119 119  
120 -Connection2
115 +**Connection2**
121 121  
122 122  
123 123  
124 124  [[image:image-20220527092555-7.png]]
125 125  
126 -Connection3
121 +**Connection3**
127 127  
128 128  
124 +=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
129 129  
130 -=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
131 131  
132 -
133 133  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.
134 134  
135 135  [[image:image-20220601143257-10.png]]
... ... @@ -138,9 +138,13 @@
138 138  (% style="color:blue" %)**Example:**(%%)  AT+COMMAND1=01 03 00 00 00 01 84 0A
139 139  
140 140  * The first byte : slave address code (=001～247)
135 +
141 141  * The second byte : read register value function code
137 +
142 142  * 3rd and 4th bytes: start address of register to be read
139 +
143 143  * 5th and 6th bytes: Number of registers to read
141 +
144 144  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
145 145  
146 146  (((
... ... @@ -153,27 +153,23 @@
153 153  )))
154 154  
155 155  * The first byte ARD: slave address code (=001～254)
154 +
156 156  * The second byte: Return to read function code
156 +
157 157  * 3rd byte: total number of bytes
158 +
158 158  * 4th～5th bytes: register data
160 +
159 159  * The 6th and 7th bytes: CRC16 checksum
162 +
160 160  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
161 161  
162 -(% class="wikigeneratedid" %)
163 -(((
164 -
165 +=== 1.3.3 How to configure RS485-LN and parse output commands ===
165 165  
166 166  
167 -
168 -)))
169 -
170 -=== **1.3.3 How to configure RS485-LN and parse output commands** ===
171 -
172 -
173 173  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
174 174  
175 175  
176 -
177 177  ==== **1.3.3.1 via AT COMMAND** ====
178 178  
179 179  
... ... @@ -187,7 +187,7 @@
187 187  
188 188  [[image:image-20220601143201-9.png]]
189 189  
190 -AT COMMAND
184 +**AT COMMAND**
191 191  
192 192  
193 193  (% class="box infomessage" %)
... ... @@ -203,16 +203,15 @@
203 203  
204 204  [[image:image-20220601143115-8.png]]
205 205  
206 -AT COMMAND
200 +**AT COMMAND**
207 207  
208 208  
209 209  
210 210  PAYLOAD is available after the valid value is intercepted.
211 211  
212 -
213 213  [[image:image-20220601143046-7.png]]
214 214  
215 -AT COMMAND
208 +**AT COMMAND**
216 216  
217 217  
218 218  
... ... @@ -221,19 +221,16 @@
221 221  [[image:image-20220601143519-1.png]]
222 222  
223 223  (((
224 -AT COMMAND
217 +**AT COMMAND**
225 225  )))
226 226  
227 227  (((
228 228  
229 -
230 -
231 231  )))
232 232  
233 233  (((
234 234  (% style="color:blue" %)**Example**:
235 235  
236 -
237 237  (% style="color:red" %)**CMD1:**(%%) Read current data with MODBUS command. address: 0x03 AT+COMMAND1= 01 03 00 03 00 01,1
238 238  )))
239 239  
... ... @@ -275,8 +275,6 @@
275 275  
276 276  (((
277 277  Payload: 01 00 02 39 85 08 DC 00 00 00 44
278 -
279 -
280 280  )))
281 281  
282 282  [[image:image-20220601142936-6.png]]
... ... @@ -300,13 +300,11 @@
300 300  [[image:image-20220527093358-15.png]]
301 301  
302 302  (((
303 -DOWNLINK
291 +**DOWNLINK**
304 304  )))
305 305  
306 -(((
307 -
308 -)))
309 309  
295 +
310 310  (((
311 311  (% style="color:blue" %)**Type Code 0xAF**
312 312  )))
... ... @@ -320,8 +320,6 @@
320 320  
321 321  (((
322 322  (% style="color:red" %)**Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
323 -
324 -
325 325  )))
326 326  
327 327  (((
... ... @@ -356,9 +356,8 @@
356 356  will execute an uplink after got this command.
357 357  )))
358 358  
359 -(((
360 -
361 361  
344 +(((
362 362  (% style="color:blue" %)**Example:**
363 363  )))
364 364  
... ... @@ -368,35 +368,34 @@
368 368  
369 369  [[image:image-20220601144149-6.png]]
370 370  
371 -DOWNLINK
354 +**DOWNLINK**
372 372  
373 373  
374 374  
375 375  [[image:image-20220601143803-3.png]]
376 376  
377 -DOWNLINK
360 +**DOWNLINK**
378 378  
379 379  
380 380  
381 381  [[image:image-20220601144053-5.png]]
382 382  
383 -DOWNLINK
366 +**DOWNLINK**
384 384  
385 385  
386 386  
387 387  [[image:image-20220601143921-4.png]]
388 388  
389 -DOWNLINK
372 +**DOWNLINK**
390 390  
391 391  
392 392  
393 393  [[image:image-20220601142805-5.png]]
394 394  
395 -DOWNLINK
396 -
378 +**DOWNLINK**
397 397  
398 398  
399 -=== **1.3.4 How to configure and output commands for RS485 to USB** ===
381 +=== 1.3.4 How to configure and output commands for RS485 to USB ===
400 400  
401 401  
402 402  (((
... ... @@ -423,20 +423,18 @@
423 423  
424 424  [[image:image-20220527093708-21.png]]
425 425  
426 -USB
408 +**USB**
427 427  
428 428  
429 429  
430 430  [[image:image-20220527093747-22.png]]
431 431  
432 -USB
414 +**USB**
433 433  
434 434  
435 435  
436 436  (((
437 437  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.
438 -
439 -
440 440  )))
441 441  
442 442  (((
... ... @@ -451,11 +451,11 @@
451 451  
452 452  [[image:image-20220527093821-23.png]]
453 453  
454 -USB
434 +**USB**
455 455  
456 456  
457 457  
458 -=== **1.3.5 How to configure multiple devices and modify device addresses** ===
438 +=== 1.3.5 How to configure multiple devices and modify device addresses ===
459 459  
460 460  
461 461  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.
... ... @@ -471,6 +471,7 @@
471 471  
472 472  (% style="color:blue" %)**Example**(%%): These two meters are examples of setting parameters and device addresses.
473 473  
454 +
474 474  [[image:image-20220527093950-25.png]]
475 475  
476 476  
... ... @@ -503,9 +503,9 @@
503 503  **AT+CFGDEV:01 10 00 61 00 01 02 00 02,1**
504 504  )))
505 505  
506 -* 01:device adaress
487 +* 01: device adaress
507 507  
508 -* 10:function code
489 +* 10: function code
509 509  
510 510  * 00 61：Register address
511 511  
... ... @@ -534,6 +534,9 @@
534 534  * 08 DF is the valid value of the meter with device address 02.
535 535  * 43 62 is the valid value of the meter with device address 01.
536 536  
518 +(% style="display:none" %) (%%)
519 +
520 +
537 537  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
538 538  
539 539  
... ... @@ -543,7 +543,7 @@
543 543  
544 544  [[image:image-20220527094330-30.png]]
545 545  
546 -Connection
530 +**Connection**
547 547  
548 548  
549 549  * 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"]]
... ... @@ -554,6 +554,7 @@
554 554  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:
555 555  
556 556  * 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);"]]
541 +
557 557  * 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"]]
558 558  
559 559  == 1.6 Example 6: CEM C31 485-T1-MID Energy Meter with RS485-LN ==
... ... @@ -568,7 +568,19 @@
568 568  
569 569  [[image:image-20220527094556-31.png]]
570 570  
556 +
571 571  Network Structure
572 572  
573 -
574 574  * [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]]
560 +
561 +== 1.8  Example 8: This sketch is supposed to test Dragino RS485-BL (Modbus master), using an Arduino UNO as a Modbus slave. ==
562 +
563 +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.
564 +
565 +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.
566 +
567 +This is released the code under GNU LGPL licence on Github:
568 +
569 +[[https:~~/~~/github.com/zorbaproject/ArduinoModbusForDraginoRS485>>url:https://github.com/zorbaproject/ArduinoModbusForDraginoRS485]]
570 +
571 +

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