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edited by Karry Zhuang
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1 -XWiki.karry
1 +XWiki.Xiaoling
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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 ==
17 17  
17 +== **1.1 Example 1: Connect to Leak relay and VFD** ==
18 18  
19 +
19 19  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:
20 20  
21 21  
22 22  [[image:image-20220527091852-1.png||height="547" width="994"]]
23 23  
24 -**Connection**
25 +Connection
25 25  
26 26  
28 +
27 27  [[image:image-20220527091942-2.png]](% style="display:none" %)
28 28  
29 -**Connection**
31 +Connection
30 30  
31 31  
32 32  (% style="color:blue" %)**Related documents:**
33 33  
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 +* 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 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 40  
41 -== 1.2 Example 2: Connect to Pulse Counter ==
42 42  
42 +== **1.2 Example 2: Connect to Pulse Counter** ==
43 43  
44 +
44 44  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:
45 45  
46 46  
47 47  [[image:image-20220527092058-3.png||height="552" width="905"]]
48 48  
49 -**Connection**
50 +Connection
50 50  
51 51  
53 +
52 52  [[image:image-20220527092146-4.png||height="507" width="906"]]
53 53  
54 -**Connection**
56 +Connection
55 55  
56 56  
57 57  (% style="color:blue" %)**Related documents:**
58 58  
59 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 -
61 61  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
62 62  
64 +== **1.3 Example 3: Use RS485-LN with energy meters** ==
63 63  
64 -== 1.3 Example 3: Use RS485-LN with energy meters ==
65 65  
66 -=== 1.3.1 OverView ===
67 +=== **1.3.1 OverView** ===
67 67  
68 68  
69 69  (((
... ... @@ -72,13 +72,16 @@
72 72  
73 73  (((
74 74  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
76 +
77 +
75 75  )))
76 76  
77 77  [[image:image-20220527092419-5.png]]
78 78  
79 -**Connection1**
82 +Connection1
80 80  
81 81  
85 +
82 82  (((
83 83  (% style="color:blue" %)**How to connect with Energy Meter：**
84 84  
... ... @@ -94,30 +94,34 @@
94 94  )))
95 95  
96 96  (((
97 -Power Source **VIN** to RS485-LN **VIN+**
101 +Power Source VIN to RS485-LN VIN+
98 98  )))
99 99  
100 100  (((
101 -Power Source **GND** to RS485-LN **VIN-**
105 +Power Source GND to RS485-LN VIN-
102 102  )))
103 103  
104 104  (((
105 105  Once there is power, the RS485-LN will be on.
110 +
111 +
106 106  )))
107 107  
108 108  [[image:image-20220527092514-6.png]]
109 109  
110 -**Connection2**
116 +Connection2
111 111  
112 112  
119 +
113 113  [[image:image-20220527092555-7.png]]
114 114  
115 -**Connection3**
122 +Connection3
116 116  
117 117  
118 -=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
119 119  
126 +=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
120 120  
128 +
121 121  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.
122 122  
123 123  [[image:image-20220601143257-10.png]]
... ... @@ -126,13 +126,9 @@
126 126  (% style="color:blue" %)**Example:**(%%)  AT+COMMAND1=01 03 00 00 00 01 84 0A
127 127  
128 128  * The first byte : slave address code (=001～247)
129 -
130 130  * The second byte : read register value function code
131 -
132 132  * 3rd and 4th bytes: start address of register to be read
133 -
134 134  * 5th and 6th bytes: Number of registers to read
135 -
136 136  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
137 137  
138 138  (((
... ... @@ -145,24 +145,27 @@
145 145  )))
146 146  
147 147  * The first byte ARD: slave address code (=001～254)
148 -
149 149  * The second byte: Return to read function code
150 -
151 151  * 3rd byte: total number of bytes
152 -
153 153  * 4th～5th bytes: register data
154 -
155 155  * The 6th and 7th bytes: CRC16 checksum
156 -
157 157  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
158 158  
158 +(% class="wikigeneratedid" %)
159 +(((
160 +
159 159  
160 -=== 1.3.3 How to configure RS485-LN and parse output commands ===
161 161  
163 +
164 +)))
162 162  
166 +=== **1.3.3 How to configure RS485-LN and parse output commands** ===
167 +
168 +
163 163  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
164 164  
165 165  
172 +
166 166  ==== **1.3.3.1 via AT COMMAND** ====
167 167  
168 168  
... ... @@ -176,7 +176,7 @@
176 176  
177 177  [[image:image-20220601143201-9.png]]
178 178  
179 -**AT COMMAND**
186 +AT COMMAND
180 180  
181 181  
182 182  (% class="box infomessage" %)
... ... @@ -192,31 +192,37 @@
192 192  
193 193  [[image:image-20220601143115-8.png]]
194 194  
195 -**AT COMMAND**
202 +AT COMMAND
196 196  
197 197  
205 +
198 198  PAYLOAD is available after the valid value is intercepted.
199 199  
208 +
200 200  [[image:image-20220601143046-7.png]]
201 201  
202 -**AT COMMAND**
211 +AT COMMAND
203 203  
204 204  
214 +
205 205  You can get configured PAYLOAD on TTN.
206 206  
207 207  [[image:image-20220601143519-1.png]]
208 208  
209 209  (((
210 -**AT COMMAND**
220 +AT COMMAND
211 211  )))
212 212  
213 213  (((
214 214  
225 +
226 +
215 215  )))
216 216  
217 217  (((
218 218  (% style="color:blue" %)**Example**:
219 219  
232 +
220 220  (% style="color:red" %)**CMD1:**(%%) Read current data with MODBUS command. address: 0x03 AT+COMMAND1= 01 03 00 03 00 01,1
221 221  )))
222 222  
... ... @@ -258,6 +258,8 @@
258 258  
259 259  (((
260 260  Payload: 01 00 02 39 85 08 DC 00 00 00 44
274 +
275 +
261 261  )))
262 262  
263 263  [[image:image-20220601142936-6.png]]
... ... @@ -265,6 +265,7 @@
265 265  AT COMMAND
266 266  
267 267  
283 +
268 268  (% 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.**
269 269  
270 270  
... ... @@ -273,6 +273,7 @@
273 273  AT COMMAND
274 274  
275 275  
292 +
276 276  ==== **1.3.3.2 via LoRaWAN DOWNLINK** ====
277 277  
278 278  
... ... @@ -279,9 +279,12 @@
279 279  [[image:image-20220527093358-15.png]]
280 280  
281 281  (((
282 -**DOWNLINK**
299 +DOWNLINK
283 283  )))
284 284  
302 +(((
303 +
304 +)))
285 285  
286 286  (((
287 287  (% style="color:blue" %)**Type Code 0xAF**
... ... @@ -296,6 +296,8 @@
296 296  
297 297  (((
298 298  (% style="color:red" %)**Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
319 +
320 +
299 299  )))
300 300  
301 301  (((
... ... @@ -330,8 +330,9 @@
330 330  will execute an uplink after got this command.
331 331  )))
332 332  
333 -
334 334  (((
356 +
357 +
335 335  (% style="color:blue" %)**Example:**
336 336  )))
337 337  
... ... @@ -341,30 +341,35 @@
341 341  
342 342  [[image:image-20220601144149-6.png]]
343 343  
344 -**DOWNLINK**
367 +DOWNLINK
345 345  
346 346  
370 +
347 347  [[image:image-20220601143803-3.png]]
348 348  
349 -**DOWNLINK**
373 +DOWNLINK
350 350  
351 351  
376 +
352 352  [[image:image-20220601144053-5.png]]
353 353  
354 -**DOWNLINK**
379 +DOWNLINK
355 355  
356 356  
382 +
357 357  [[image:image-20220601143921-4.png]]
358 358  
359 -**DOWNLINK**
385 +DOWNLINK
360 360  
361 361  
388 +
362 362  [[image:image-20220601142805-5.png]]
363 363  
364 -**DOWNLINK**
391 +DOWNLINK
392 +
365 365  
366 366  
367 -=== 1.3.4 How to configure and output commands for RS485 to USB ===
395 +=== **1.3.4 How to configure and output commands for RS485 to USB** ===
368 368  
369 369  
370 370  (((
... ... @@ -385,21 +385,26 @@
385 385  
386 386  (((
387 387  check digit: Even
416 +
417 +
388 388  )))
389 389  
390 390  [[image:image-20220527093708-21.png]]
391 391  
392 -**USB**
422 +USB
393 393  
394 394  
425 +
395 395  [[image:image-20220527093747-22.png]]
396 396  
397 -**USB**
428 +USB
398 398  
399 399  
400 400  
401 401  (((
402 402  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.
434 +
435 +
403 403  )))
404 404  
405 405  (((
... ... @@ -414,12 +414,13 @@
414 414  
415 415  [[image:image-20220527093821-23.png]]
416 416  
417 -**USB**
450 +USB
418 418  
419 419  
420 -=== 1.3.5 How to configure multiple devices and modify device addresses ===
421 421  
454 +=== **1.3.5 How to configure multiple devices and modify device addresses** ===
422 422  
456 +
423 423  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.
424 424  
425 425  (((
... ... @@ -466,9 +466,9 @@
466 466  **AT+CFGDEV:01 10 00 61 00 01 02 00 02,1**
467 467  )))
468 468  
469 -* 01: device adaress
503 +* 01:device adaress
470 470  
471 -* 10: function code
505 +* 10:function code
472 472  
473 473  * 00 61：Register address
474 474  
... ... @@ -499,6 +499,7 @@
499 499  
500 500  (% style="display:none" %) (%%)
501 501  
536 +(% style="display:none" %) (%%)
502 502  
503 503  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
504 504  
... ... @@ -509,7 +509,7 @@
509 509  
510 510  [[image:image-20220527094330-30.png]]
511 511  
512 -**Connection**
547 +Connection
513 513  
514 514  
515 515  * 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"]]
... ... @@ -521,10 +521,10 @@
521 521  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:
522 522  
523 523  * 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);"]]
524 -
525 525  * 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"]]
526 526  
527 527  
562 +
528 528  == 1.6 Example 6: CEM C31 485-T1-MID Energy Meter with RS485-LN ==
529 529  
530 530  
... ... @@ -533,35 +533,13 @@
533 533  * 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);"]]
534 534  
535 535  
571 +
536 536  == 1.7 Example 7: Schneider Electric PLC M221 with RS485-BL ==
537 537  
538 538  
539 539  [[image:image-20220527094556-31.png]]
540 540  
541 -
542 542  Network Structure
543 543  
544 -* [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]]
545 545  
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 -*
580 +* [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]]
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