Last modified by Karry Zhuang on 2024/07/11 11:58
<
From version < 79.5 >
edited by Karry Zhuang
on 2024/07/11 11:58
To version < 60.12 >
edited by Xiaoling
on 2022/12/14 14:22
>
Change comment: There is no comment for this version

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1 -XWiki.karry
1 +XWiki.Xiaoling
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24 24  **Connection**
25 25  
26 26  
27 +
27 27  [[image:image-20220527091942-2.png]](% style="display:none" %)
28 28  
29 29  **Connection**
... ... @@ -31,13 +31,12 @@
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 -
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  * 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  
40 +
41 41  == 1.2 Example 2: Connect to Pulse Counter ==
42 42  
43 43  
... ... @@ -49,6 +49,7 @@
49 49  **Connection**
50 50  
51 51  
52 +
52 52  [[image:image-20220527092146-4.png||height="507" width="906"]]
53 53  
54 54  **Connection**
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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  
63 63  
64 +
64 64  == 1.3 Example 3: Use RS485-LN with energy meters ==
65 65  
66 66  === 1.3.1 OverView ===
... ... @@ -72,6 +72,8 @@
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]]
... ... @@ -79,6 +79,7 @@
79 79  **Connection1**
80 80  
81 81  
85 +
82 82  (((
83 83  (% style="color:blue" %)**How to connect with Energy Meter：**
84 84  
... ... @@ -94,15 +94,17 @@
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]]
... ... @@ -110,6 +110,7 @@
110 110  **Connection2**
111 111  
112 112  
119 +
113 113  [[image:image-20220527092555-7.png]]
114 114  
115 115  **Connection3**
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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  (((
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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  
157 +(% class="wikigeneratedid" %)
158 +(((
159 +
159 159  
161 +
162 +)))
163 +
160 160  === 1.3.3 How to configure RS485-LN and parse output commands ===
161 161  
162 162  
... ... @@ -163,7 +163,7 @@
163 163  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
164 164  
165 165  
166 -==== **1.3.3.1 via AT COMMAND** ====
170 +==== 1.3.3.1 via AT COMMAND ====
167 167  
168 168  
169 169  First, we can use (% style="color:blue" %)**AT+CFGDEV**(%%) to get the return value, and we can also judge whether the input parameters are correct.
... ... @@ -195,6 +195,7 @@
195 195  **AT COMMAND**
196 196  
197 197  
202 +
198 198  PAYLOAD is available after the valid value is intercepted.
199 199  
200 200  [[image:image-20220601143046-7.png]]
... ... @@ -202,6 +202,7 @@
202 202  **AT COMMAND**
203 203  
204 204  
210 +
205 205  You can get configured PAYLOAD on TTN.
206 206  
207 207  [[image:image-20220601143519-1.png]]
... ... @@ -217,6 +217,7 @@
217 217  (((
218 218  (% style="color:blue" %)**Example**:
219 219  
226 +
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
268 +
269 +
261 261  )))
262 262  
263 263  [[image:image-20220601142936-6.png]]
... ... @@ -265,6 +265,7 @@
265 265  AT COMMAND
266 266  
267 267  
277 +
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  
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273 273  AT COMMAND
274 274  
275 275  
276 -==== **1.3.3.2 via LoRaWAN DOWNLINK** ====
277 277  
287 +==== 1.3.3.2 via LoRaWAN DOWNLINK ====
278 278  
289 +
279 279  [[image:image-20220527093358-15.png]]
280 280  
281 281  (((
... ... @@ -282,6 +282,9 @@
282 282  **DOWNLINK**
283 283  )))
284 284  
296 +(((
297 +
298 +)))
285 285  
286 286  (((
287 287  (% style="color:blue" %)**Type Code 0xAF**
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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.**
313 +
314 +
299 299  )))
300 300  
301 301  (((
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330 330  will execute an uplink after got this command.
331 331  )))
332 332  
333 -
334 334  (((
350 +
351 +
335 335  (% style="color:blue" %)**Example:**
336 336  )))
337 337  
... ... @@ -344,21 +344,25 @@
344 344  **DOWNLINK**
345 345  
346 346  
364 +
347 347  [[image:image-20220601143803-3.png]]
348 348  
349 349  **DOWNLINK**
350 350  
351 351  
370 +
352 352  [[image:image-20220601144053-5.png]]
353 353  
354 354  **DOWNLINK**
355 355  
356 356  
376 +
357 357  [[image:image-20220601143921-4.png]]
358 358  
359 359  **DOWNLINK**
360 360  
361 361  
382 +
362 362  [[image:image-20220601142805-5.png]]
363 363  
364 364  **DOWNLINK**
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385 385  
386 386  (((
387 387  check digit: Even
409 +
410 +
388 388  )))
389 389  
390 390  [[image:image-20220527093708-21.png]]
... ... @@ -392,6 +392,7 @@
392 392  **USB**
393 393  
394 394  
418 +
395 395  [[image:image-20220527093747-22.png]]
396 396  
397 397  **USB**
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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.
427 +
428 +
403 403  )))
404 404  
405 405  (((
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417 417  **USB**
418 418  
419 419  
446 +
420 420  === 1.3.5 How to configure multiple devices and modify device addresses ===
421 421  
422 422  
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499 499  
500 500  (% style="display:none" %) (%%)
501 501  
529 +(% style="display:none" %) (%%)
502 502  
503 503  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
504 504  
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509 509  
510 510  [[image:image-20220527094330-30.png]]
511 511  
512 -**Connection**
540 +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"]]
516 516  
517 517  
546 +
518 518  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
519 519  
520 520  
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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  
556 +
528 528  == 1.6 Example 6: CEM C31 485-T1-MID Energy Meter with RS485-LN ==
529 529  
530 530  
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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  
565 +
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 -Need to prepare RS485-LN, recharger, Electric wire
566 -
567 -[[image:1720669739434-926.png]] [[image:1720669744315-613.png]]
568 -
569 -
570 -=== 1.9.1 Setting Ultrasonic Flowmeter ===
571 -
572 -
573 -Adjust the M option corresponding to the ultrasonic flowmeter as follows
574 -
575 -M52 sets RS485 Port  M62 sets 9600, none, 1  M63 sets automatic
576 -
577 -[[image:1720669933691-331.png]][[image:1720669981767-254.png||height="550" width="412"]][[image:1720670003601-544.png||height="550" width="412"]]
578 -
579 -
580 -=== 1.9.2 Setting Dragino RS485-LN ===
581 -
582 -
583 -The RS485-LN wiring port is as shown below. Connect the power supply and RS485 A/B line according to the diagram.
584 -
585 -[[image:1720670016539-422.png]][[image:1720670019136-658.png]]
586 -
587 -
588 -=== 1.9.3 Connect the RS485-LN to Ultrasonic Flowmeter ===
589 -
590 -
591 -According to the instructions of the ultrasonic flow meter, 26 and 27 are the + and - of RS485, corresponding to the A and B ports of RS485.
592 -
593 -[[image:1720670035661-234.png]][[image:1720670041974-372.png||height="417" width="436"]]
594 -
595 -
596 -=== 1.9.4 Full wiring example ===
597 -
598 -
599 -The yellow wire connects port 26 and port A of RS485-LN.
600 -
601 -The green wire connects port 27 and port B of RS485-LN.
602 -
603 -[[image:1720670079781-764.png]]
604 -
605 -
606 -=== 1.9.5 How to read ultrasonic flow meter data via RS485 ===
607 -
608 -
609 -[[image:1720670090204-634.png]]
610 -
611 -
612 -For example, I want to read Positive
613 -
614 -Through M02, we can see that the POS data is 54.9862
615 -
616 -[[image:1720670103571-173.png]][[image:1720670108127-723.png||height="597" width="645"]]
617 -
618 -Registers are 9-12, so the read command is AT+CFGDEV=01 03 00 08 00 04,1(,1 is used for automatic complement)
619 -
620 -[[image:1720670123955-149.png]]
621 -
622 -
623 -00 36 00 00 is the integer of the read value
624 -
625 -78 79 3f 7c is a decimal, but it needs to be converted and parsed into floating point. The parsing order is CDAB, which is 3f 7c 78 79
626 -
627 -Conversion and parsing website:http:~/~/www.speedfly.cn/tools/hexconvert/
628 -
629 -[[image:1720670134750-980.png]]
630 -
631 -
574 +* [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]]
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