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edited by Xiaoling
on 2022/09/19 16:08
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1 +XWiki.karry
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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 -
29 29  [[image:image-20220527091942-2.png]](% style="display:none" %)
30 30  
31 -Connection
29 +**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);"]]
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 +
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);"]]
37 +
38 38  * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
39 39  
40 40  
41 +== 1.2 Example 2: Connect to Pulse Counter ==
41 41  
42 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  
52 +[[image:image-20220527092146-4.png||height="507" width="906"]]
54 54  
55 -[[image:image-20220527092146-4.png]]
54 +**Connection**
56 56  
57 -Connection
58 58  
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"]]
60 +
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  
65 65  
64 +== 1.3 Example 3: Use RS485-LN with energy meters ==
66 66  
66 +=== 1.3.1 OverView ===
67 67  
68 -== **1.3 Example3: Use RS485-LN with energy meters** ==
69 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  )))
... ... @@ -77,16 +77,13 @@
77 77  
78 78  (((
79 79  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
80 -
81 -
82 82  )))
83 83  
84 84  [[image:image-20220527092419-5.png]]
85 85  
86 -Connection1
79 +**Connection1**
87 87  
88 88  
89 -
90 90  (((
91 91  (% style="color:blue" %)**How to connect with Energy Meter：**
92 92  
... ... @@ -102,34 +102,30 @@
102 102  )))
103 103  
104 104  (((
105 -Power Source VIN to RS485-LN VIN+
97 +Power Source **VIN** to RS485-LN **VIN+**
106 106  )))
107 107  
108 108  (((
109 -Power Source GND to RS485-LN VIN-
101 +Power Source **GND** to RS485-LN **VIN-**
110 110  )))
111 111  
112 112  (((
113 113  Once there is power, the RS485-LN will be on.
114 -
115 -
116 116  )))
117 117  
118 118  [[image:image-20220527092514-6.png]]
119 119  
120 -Connection2
110 +**Connection2**
121 121  
122 122  
123 -
124 124  [[image:image-20220527092555-7.png]]
125 125  
126 -Connection3
115 +**Connection3**
127 127  
128 128  
118 +=== 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)
129 +
141 141  * The second byte : read register value function code
131 +
142 142  * 3rd and 4th bytes: start address of register to be read
133 +
143 143  * 5th and 6th bytes: Number of registers to read
135 +
144 144  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
145 145  
146 146  (((
... ... @@ -153,27 +153,24 @@
153 153  )))
154 154  
155 155  * The first byte ARD: slave address code (=001～254)
148 +
156 156  * The second byte: Return to read function code
150 +
157 157  * 3rd byte: total number of bytes
152 +
158 158  * 4th～5th bytes: register data
154 +
159 159  * The 6th and 7th bytes: CRC16 checksum
156 +
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 -
165 165  
160 +=== 1.3.3 How to configure RS485-LN and parse output commands ===
166 166  
167 -
168 -)))
169 169  
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
179 +**AT COMMAND**
191 191  
192 192  
193 193  (% class="box infomessage" %)
... ... @@ -203,37 +203,31 @@
203 203  
204 204  [[image:image-20220601143115-8.png]]
205 205  
206 -AT COMMAND
195 +**AT COMMAND**
207 207  
208 208  
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
202 +**AT COMMAND**
216 216  
217 217  
218 -
219 219  You can get configured PAYLOAD on TTN.
220 220  
221 221  [[image:image-20220601143519-1.png]]
222 222  
223 223  (((
224 -AT COMMAND
210 +**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]]
... ... @@ -284,7 +284,6 @@
284 284  AT COMMAND
285 285  
286 286  
287 -
288 288  (% 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.**
289 289  
290 290  
... ... @@ -293,7 +293,6 @@
293 293  AT COMMAND
294 294  
295 295  
296 -
297 297  ==== **1.3.3.2 via LoRaWAN DOWNLINK** ====
298 298  
299 299  
... ... @@ -300,12 +300,9 @@
300 300  [[image:image-20220527093358-15.png]]
301 301  
302 302  (((
303 -DOWNLINK
282 +**DOWNLINK**
304 304  )))
305 305  
306 -(((
307 -
308 -)))
309 309  
310 310  (((
311 311  (% style="color:blue" %)**Type Code 0xAF**
... ... @@ -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  
334 +(((
362 362  (% style="color:blue" %)**Example:**
363 363  )))
364 364  
... ... @@ -368,35 +368,30 @@
368 368  
369 369  [[image:image-20220601144149-6.png]]
370 370  
371 -DOWNLINK
344 +**DOWNLINK**
372 372  
373 373  
374 -
375 375  [[image:image-20220601143803-3.png]]
376 376  
377 -DOWNLINK
349 +**DOWNLINK**
378 378  
379 379  
380 -
381 381  [[image:image-20220601144053-5.png]]
382 382  
383 -DOWNLINK
354 +**DOWNLINK**
384 384  
385 385  
386 -
387 387  [[image:image-20220601143921-4.png]]
388 388  
389 -DOWNLINK
359 +**DOWNLINK**
390 390  
391 391  
392 -
393 393  [[image:image-20220601142805-5.png]]
394 394  
395 -DOWNLINK
396 -
364 +**DOWNLINK**
397 397  
398 398  
399 -=== **1.3.4 How to configure and output commands for RS485 to USB** ===
367 +=== 1.3.4 How to configure and output commands for RS485 to USB ===
400 400  
401 401  
402 402  (((
... ... @@ -417,26 +417,21 @@
417 417  
418 418  (((
419 419  check digit: Even
420 -
421 -
422 422  )))
423 423  
424 424  [[image:image-20220527093708-21.png]]
425 425  
426 -USB
392 +**USB**
427 427  
428 428  
429 -
430 430  [[image:image-20220527093747-22.png]]
431 431  
432 -USB
397 +**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  (((
... ... @@ -451,13 +451,12 @@
451 451  
452 452  [[image:image-20220527093821-23.png]]
453 453  
454 -USB
417 +**USB**
455 455  
456 456  
420 +=== 1.3.5 How to configure multiple devices and modify device addresses ===
457 457  
458 -=== **1.3.5 How to configure multiple devices and modify device addresses** ===
459 459  
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.
462 462  
463 463  (((
... ... @@ -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  
436 +
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
469 +* 01: device adaress
507 507  
508 -* 10:function code
471 +* 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  
500 +(% style="display:none" %) (%%)
501 +
502 +
537 537  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
538 538  
539 539  
... ... @@ -543,11 +543,12 @@
543 543  
544 544  [[image:image-20220527094330-30.png]]
545 545  
546 -Connection
512 +**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"]]
550 550  
517 +
551 551  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
552 552  
553 553  
... ... @@ -554,8 +554,10 @@
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);"]]
524 +
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  
527 +
559 559  == 1.6 Example 6: CEM C31 485-T1-MID Energy Meter with RS485-LN ==
560 560  
561 561  
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563 563  
564 564  * 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);"]]
565 565  
535 +
566 566  == 1.7 Example 7: Schneider Electric PLC M221 with RS485-BL ==
567 567  
568 568  
569 569  [[image:image-20220527094556-31.png]]
570 570  
541 +
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/]]
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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