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Author
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1 -XWiki.Bei
1 +XWiki.Xiaoling
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 ==
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 -[[image:image-20220527091852-1.png||height="547" width="994"]]
23 +[[image:image-20220527091852-1.png]]
23 23  
24 -**Connection**
25 +Connection
25 25  
26 26  
27 27  
28 28  [[image:image-20220527091942-2.png]](% style="display:none" %)
29 29  
30 -**Connection**
31 +Connection
31 31  
32 32  
33 33  (% style="color:blue" %)**Related documents:**
34 34  
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 -
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);"]]
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 -
39 39  * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
40 40  
41 -== 1.2 Example 2: Connect to Pulse Counter ==
42 42  
43 43  
42 +== **1.2 Example 2: Connect to Pulse Counter** ==
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 -[[image:image-20220527092058-3.png||height="552" width="905"]]
48 +[[image:image-20220527092058-3.png]]
48 48  
49 -**Connection**
50 +Connection
50 50  
51 51  
52 52  
53 -[[image:image-20220527092146-4.png||height="507" width="906"]]
54 +[[image:image-20220527092146-4.png]]
54 54  
55 -**Connection**
56 +Connection
56 56  
57 57  
58 58  (% style="color:blue" %)**Related documents:**
59 59  
60 60  * 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 -
62 62  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
63 63  
64 -== 1.3 Example 3: Use RS485-LN with energy meters ==
65 65  
66 -=== 1.3.1 OverView ===
67 67  
66 +== **1.3 Example3: Use RS485-LN with energy meters** ==
68 68  
68 +
69 +=== **1.3.1 OverView** ===
70 +
71 +
69 69  (((
70 70  (% style="color:red" %)**Note**：**The specifications of each energy meter are different, please refer to your own energy meter specifications.**
71 71  )))
... ... @@ -78,7 +78,7 @@
78 78  
79 79  [[image:image-20220527092419-5.png]]
80 80  
81 -**Connection1**
84 +Connection1
82 82  
83 83  
84 84  
... ... @@ -97,11 +97,11 @@
97 97  )))
98 98  
99 99  (((
100 -Power Source **VIN** to RS485-LN **VIN+**
103 +Power Source VIN to RS485-LN VIN+
101 101  )))
102 102  
103 103  (((
104 -Power Source **GND** to RS485-LN **VIN-**
107 +Power Source GND to RS485-LN VIN-
105 105  )))
106 106  
107 107  (((
... ... @@ -112,18 +112,19 @@
112 112  
113 113  [[image:image-20220527092514-6.png]]
114 114  
115 -**Connection2**
118 +Connection2
116 116  
117 117  
118 118  
119 119  [[image:image-20220527092555-7.png]]
120 120  
121 -**Connection3**
124 +Connection3
122 122  
123 123  
124 -=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
125 125  
128 +=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
126 126  
130 +
127 127  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.
128 128  
129 129  [[image:image-20220601143257-10.png]]
... ... @@ -132,13 +132,9 @@
132 132  (% style="color:blue" %)**Example:**(%%)  AT+COMMAND1=01 03 00 00 00 01 84 0A
133 133  
134 134  * The first byte : slave address code (=001～247)
135 -
136 136  * The second byte : read register value function code
137 -
138 138  * 3rd and 4th bytes: start address of register to be read
139 -
140 140  * 5th and 6th bytes: Number of registers to read
141 -
142 142  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
143 143  
144 144  (((
... ... @@ -151,23 +151,27 @@
151 151  )))
152 152  
153 153  * The first byte ARD: slave address code (=001～254)
154 -
155 155  * The second byte: Return to read function code
156 -
157 157  * 3rd byte: total number of bytes
158 -
159 159  * 4th～5th bytes: register data
160 -
161 161  * The 6th and 7th bytes: CRC16 checksum
162 -
163 163  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
164 164  
165 -=== 1.3.3 How to configure RS485-LN and parse output commands ===
160 +(% class="wikigeneratedid" %)
161 +(((
162 +
166 166  
167 167  
165 +
166 +)))
167 +
168 +=== **1.3.3 How to configure RS485-LN and parse output commands** ===
169 +
170 +
168 168  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
169 169  
170 170  
174 +
171 171  ==== **1.3.3.1 via AT COMMAND** ====
172 172  
173 173  
... ... @@ -181,7 +181,7 @@
181 181  
182 182  [[image:image-20220601143201-9.png]]
183 183  
184 -**AT COMMAND**
188 +AT COMMAND
185 185  
186 186  
187 187  (% class="box infomessage" %)
... ... @@ -197,15 +197,16 @@
197 197  
198 198  [[image:image-20220601143115-8.png]]
199 199  
200 -**AT COMMAND**
204 +AT COMMAND
201 201  
202 202  
203 203  
204 204  PAYLOAD is available after the valid value is intercepted.
205 205  
210 +
206 206  [[image:image-20220601143046-7.png]]
207 207  
208 -**AT COMMAND**
213 +AT COMMAND
209 209  
210 210  
211 211  
... ... @@ -214,16 +214,19 @@
214 214  [[image:image-20220601143519-1.png]]
215 215  
216 216  (((
217 -**AT COMMAND**
222 +AT COMMAND
218 218  )))
219 219  
220 220  (((
221 221  
227 +
228 +
222 222  )))
223 223  
224 224  (((
225 225  (% style="color:blue" %)**Example**:
226 226  
234 +
227 227  (% style="color:red" %)**CMD1:**(%%) Read current data with MODBUS command. address: 0x03 AT+COMMAND1= 01 03 00 03 00 01,1
228 228  )))
229 229  
... ... @@ -265,6 +265,8 @@
265 265  
266 266  (((
267 267  Payload: 01 00 02 39 85 08 DC 00 00 00 44
276 +
277 +
268 268  )))
269 269  
270 270  [[image:image-20220601142936-6.png]]
... ... @@ -288,13 +288,15 @@
288 288  [[image:image-20220527093358-15.png]]
289 289  
290 290  (((
291 -**DOWNLINK**
301 +DOWNLINK
292 292  )))
293 293  
304 +(((
305 +
306 +)))
294 294  
295 -
296 296  (((
297 -(% style="color:blue" %)**Type Code 0xAF**
309 +(% style="color:#4f81bd" %)**Type Code 0xAF**
298 298  )))
299 299  
300 300  (((
... ... @@ -306,6 +306,8 @@
306 306  
307 307  (((
308 308  (% style="color:red" %)**Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
321 +
322 +
309 309  )))
310 310  
311 311  (((
... ... @@ -340,8 +340,9 @@
340 340  will execute an uplink after got this command.
341 341  )))
342 342  
343 -
344 344  (((
358 +
359 +
345 345  (% style="color:blue" %)**Example:**
346 346  )))
347 347  
... ... @@ -351,34 +351,35 @@
351 351  
352 352  [[image:image-20220601144149-6.png]]
353 353  
354 -**DOWNLINK**
369 +DOWNLINK
355 355  
356 356  
357 357  
358 358  [[image:image-20220601143803-3.png]]
359 359  
360 -**DOWNLINK**
375 +DOWNLINK
361 361  
362 362  
363 363  
364 364  [[image:image-20220601144053-5.png]]
365 365  
366 -**DOWNLINK**
381 +DOWNLINK
367 367  
368 368  
369 369  
370 370  [[image:image-20220601143921-4.png]]
371 371  
372 -**DOWNLINK**
387 +DOWNLINK
373 373  
374 374  
375 375  
376 376  [[image:image-20220601142805-5.png]]
377 377  
378 -**DOWNLINK**
393 +DOWNLINK
394 +
379 379  
380 380  
381 -=== 1.3.4 How to configure and output commands for RS485 to USB ===
397 +=== **1.3.4 How to configure and output commands for RS485 to USB** ===
382 382  
383 383  
384 384  (((
... ... @@ -405,18 +405,20 @@
405 405  
406 406  [[image:image-20220527093708-21.png]]
407 407  
408 -**USB**
424 +USB
409 409  
410 410  
411 411  
412 412  [[image:image-20220527093747-22.png]]
413 413  
414 -**USB**
430 +USB
415 415  
416 416  
417 417  
418 418  (((
419 419  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.
436 +
437 +
420 420  )))
421 421  
422 422  (((
... ... @@ -431,11 +431,11 @@
431 431  
432 432  [[image:image-20220527093821-23.png]]
433 433  
434 -**USB**
452 +USB
435 435  
436 436  
437 437  
438 -=== 1.3.5 How to configure multiple devices and modify device addresses ===
456 +=== **1.3.5 How to configure multiple devices and modify device addresses** ===
439 439  
440 440  
441 441  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.
... ... @@ -451,7 +451,6 @@
451 451  
452 452  (% style="color:blue" %)**Example**(%%): These two meters are examples of setting parameters and device addresses.
453 453  
454 -
455 455  [[image:image-20220527093950-25.png]]
456 456  
457 457  
... ... @@ -484,9 +484,9 @@
484 484  **AT+CFGDEV:01 10 00 61 00 01 02 00 02,1**
485 485  )))
486 486  
487 -* 01: device adaress
504 +* 01:device adaress
488 488  
489 -* 10: function code
506 +* 10:function code
490 490  
491 491  * 00 61：Register address
492 492  
... ... @@ -515,9 +515,6 @@
515 515  * 08 DF is the valid value of the meter with device address 02.
516 516  * 43 62 is the valid value of the meter with device address 01.
517 517  
518 -(% style="display:none" %) (%%)
519 -
520 -
521 521  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
522 522  
523 523  
... ... @@ -527,7 +527,7 @@
527 527  
528 528  [[image:image-20220527094330-30.png]]
529 529  
530 -**Connection**
544 +Connection
531 531  
532 532  
533 533  * 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"]]
... ... @@ -538,7 +538,6 @@
538 538  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:
539 539  
540 540  * 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 -
542 542  * 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"]]
543 543  
544 544  == 1.6 Example 6: CEM C31 485-T1-MID Energy Meter with RS485-LN ==
... ... @@ -553,19 +553,7 @@
553 553  
554 554  [[image:image-20220527094556-31.png]]
555 555  
556 -
557 557  Network Structure
558 558  
559 -* [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]]
560 560  
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 -
572 +* [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]]

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