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1 -XWiki.Xiaoling
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 +== 1.1 Example 1: Connect to Leak relay and VFD ==
17 17  
18 18  
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 -[[image:image-20220527091852-1.png]]
22 22  
23 -Connection
22 +[[image:image-20220527091852-1.png||height="547" width="994"]]
24 24  
24 +**Connection**
25 25  
26 26  
27 27  [[image:image-20220527091942-2.png]](% style="display:none" %)
28 28  
29 -Connection
29 +**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/||style="background-color: rgb(255, 255, 255);"]]
35 -* 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/||style="background-color: rgb(255, 255, 255);"]]
36 -* [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
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);"]]
37 37  
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);"]]
38 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 +== 1.2 Example 2: Connect to Pulse Counter ==
42 42  
43 43  
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]]
47 +[[image:image-20220527092058-3.png||height="552" width="905"]]
48 48  
49 -Connection
49 +**Connection**
50 50  
51 51  
52 +[[image:image-20220527092146-4.png||height="507" width="906"]]
52 52  
53 -[[image:image-20220527092146-4.png]]
54 +**Connection**
54 54  
55 -Connection
56 56  
57 -
58 58  (% style="color:blue" %)**Related documents:**
59 59  
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/]]
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 +== 1.3 Example 3: Use RS485-LN with energy meters ==
64 64  
66 +=== 1.3.1 OverView ===
65 65  
66 -== **1.3 Example3: Use RS485-LN with energy meters** ==
67 67  
68 -
69 -=== **1.3.1 OverView** ===
70 -
71 -
72 72  (((
73 -(% style="color:red" %)**Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
70 +(% style="color:red" %)**Note**：**The specifications of each energy meter are different, please refer to your own energy meter specifications.**
74 74  )))
75 75  
76 76  (((
... ... @@ -79,10 +79,9 @@
79 79  
80 80  [[image:image-20220527092419-5.png]]
81 81  
82 -Connection1
79 +**Connection1**
83 83  
84 84  
85 -
86 86  (((
87 87  (% style="color:blue" %)**How to connect with Energy Meter：**
88 88  
... ... @@ -98,11 +98,11 @@
98 98  )))
99 99  
100 100  (((
101 -Power Source VIN to RS485-LN VIN+
97 +Power Source **VIN** to RS485-LN **VIN+**
102 102  )))
103 103  
104 104  (((
105 -Power Source GND to RS485-LN VIN-
101 +Power Source **GND** to RS485-LN **VIN-**
106 106  )))
107 107  
108 108  (((
... ... @@ -111,18 +111,17 @@
111 111  
112 112  [[image:image-20220527092514-6.png]]
113 113  
114 -Connection2
110 +**Connection2**
115 115  
116 116  
117 117  [[image:image-20220527092555-7.png]]
118 118  
119 -Connection3
115 +**Connection3**
120 120  
121 121  
118 +=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
122 122  
123 -=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
124 124  
125 -
126 126  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.
127 127  
128 128  [[image:image-20220601143257-10.png]]
... ... @@ -131,9 +131,13 @@
131 131  (% style="color:blue" %)**Example:**(%%)  AT+COMMAND1=01 03 00 00 00 01 84 0A
132 132  
133 133  * The first byte : slave address code (=001～247)
129 +
134 134  * The second byte : read register value function code
131 +
135 135  * 3rd and 4th bytes: start address of register to be read
133 +
136 136  * 5th and 6th bytes: Number of registers to read
135 +
137 137  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
138 138  
139 139  (((
... ... @@ -146,27 +146,24 @@
146 146  )))
147 147  
148 148  * The first byte ARD: slave address code (=001～254)
148 +
149 149  * The second byte: Return to read function code
150 +
150 150  * 3rd byte: total number of bytes
152 +
151 151  * 4th～5th bytes: register data
154 +
152 152  * The 6th and 7th bytes: CRC16 checksum
156 +
153 153  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
154 154  
155 -(% class="wikigeneratedid" %)
156 -(((
157 -
158 158  
160 +=== 1.3.3 How to configure RS485-LN and parse output commands ===
159 159  
160 -
161 -)))
162 162  
163 -=== **1.3.3 How to configure RS485-LN and parse output commands** ===
164 -
165 -
166 166  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
167 167  
168 168  
169 -
170 170  ==== **1.3.3.1 via AT COMMAND** ====
171 171  
172 172  
... ... @@ -174,16 +174,18 @@
174 174  
175 175  (((
176 176  If the configured parameters and commands are incorrect, the return value is not obtained.
173 +
174 +
177 177  )))
178 178  
179 179  [[image:image-20220601143201-9.png]]
180 180  
181 -AT COMMAND
179 +**AT COMMAND**
182 182  
183 183  
184 184  (% class="box infomessage" %)
185 185  (((
186 - **AT+DATACUTx **:  This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
184 + (% _mstmutation="1" %)**AT+DATACUTx **(%%):  This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
187 187  )))
188 188  
189 189  a:  length for the return of AT+COMMAND
... ... @@ -194,25 +194,22 @@
194 194  
195 195  [[image:image-20220601143115-8.png]]
196 196  
197 -AT COMMAND
195 +**AT COMMAND**
198 198  
199 199  
200 -
201 201  PAYLOAD is available after the valid value is intercepted.
202 202  
203 -
204 204  [[image:image-20220601143046-7.png]]
205 205  
206 -AT COMMAND
202 +**AT COMMAND**
207 207  
208 208  
209 -
210 210  You can get configured PAYLOAD on TTN.
211 211  
212 212  [[image:image-20220601143519-1.png]]
213 213  
214 214  (((
215 -AT COMMAND
210 +**AT COMMAND**
216 216  )))
217 217  
218 218  (((
... ... @@ -270,7 +270,7 @@
270 270  AT COMMAND
271 271  
272 272  
273 -(% style="color:#4f81bd" %)**01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.**
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.**
274 274  
275 275  
276 276  [[image:image-20220601143642-2.png]]
... ... @@ -278,7 +278,6 @@
278 278  AT COMMAND
279 279  
280 280  
281 -
282 282  ==== **1.3.3.2 via LoRaWAN DOWNLINK** ====
283 283  
284 284  
... ... @@ -285,15 +285,12 @@
285 285  [[image:image-20220527093358-15.png]]
286 286  
287 287  (((
288 -DOWNLINK
282 +**DOWNLINK**
289 289  )))
290 290  
291 -(((
292 -
293 -)))
294 294  
295 295  (((
296 -(% style="color:#4f81bd" %)**Type Code 0xAF**
287 +(% style="color:blue" %)**Type Code 0xAF**
297 297  )))
298 298  
299 299  (((
... ... @@ -339,9 +339,8 @@
339 339  will execute an uplink after got this command.
340 340  )))
341 341  
342 -(((
343 -
344 344  
334 +(((
345 345  (% style="color:blue" %)**Example:**
346 346  )))
347 347  
... ... @@ -351,36 +351,32 @@
351 351  
352 352  [[image:image-20220601144149-6.png]]
353 353  
354 -DOWNLINK
344 +**DOWNLINK**
355 355  
356 356  
357 -
358 358  [[image:image-20220601143803-3.png]]
359 359  
360 -DOWNLINK
349 +**DOWNLINK**
361 361  
362 362  
363 -
364 364  [[image:image-20220601144053-5.png]]
365 365  
366 -DOWNLINK
354 +**DOWNLINK**
367 367  
368 368  
369 -
370 370  [[image:image-20220601143921-4.png]]
371 371  
372 -DOWNLINK
359 +**DOWNLINK**
373 373  
374 374  
375 -
376 376  [[image:image-20220601142805-5.png]]
377 377  
378 -DOWNLINK
379 -
364 +**DOWNLINK**
380 380  
381 381  
382 -=== **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 ===
383 383  
369 +
384 384  (((
385 385  This step is not necessary, it is just to show how to use a normal RS485 to USB adapter to connect to the meter to check the input and output. This can be used to test the connection and RS485 command of the meter without RS485-LN.
386 386  )))
... ... @@ -399,26 +399,21 @@
399 399  
400 400  (((
401 401  check digit: Even
402 -
403 -
404 404  )))
405 405  
406 406  [[image:image-20220527093708-21.png]]
407 407  
408 -USB
392 +**USB**
409 409  
410 410  
411 -
412 412  [[image:image-20220527093747-22.png]]
413 413  
414 -USB
397 +**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.
420 -
421 -
422 422  )))
423 423  
424 424  (((
... ... @@ -433,13 +433,12 @@
433 433  
434 434  [[image:image-20220527093821-23.png]]
435 435  
436 -USB
417 +**USB**
437 437  
438 438  
420 +=== 1.3.5 How to configure multiple devices and modify device addresses ===
439 439  
440 -=== **1.3.5 How to configure multiple devices and modify device addresses** ===
441 441  
442 -
443 443  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.
444 444  
445 445  (((
... ... @@ -453,6 +453,7 @@
453 453  
454 454  (% style="color:blue" %)**Example**(%%): These two meters are examples of setting parameters and device addresses.
455 455  
436 +
456 456  [[image:image-20220527093950-25.png]]
457 457  
458 458  
... ... @@ -485,9 +485,9 @@
485 485  **AT+CFGDEV:01 10 00 61 00 01 02 00 02,1**
486 486  )))
487 487  
488 -* 01:device adaress
469 +* 01: device adaress
489 489  
490 -* 10:function code
471 +* 10: function code
491 491  
492 492  * 00 61：Register address
493 493  
... ... @@ -516,9 +516,9 @@
516 516  * 08 DF is the valid value of the meter with device address 02.
517 517  * 43 62 is the valid value of the meter with device address 01.
518 518  
500 +(% style="display:none" %) (%%)
519 519  
520 520  
521 -
522 522  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
523 523  
524 524  
... ... @@ -528,41 +528,123 @@
528 528  
529 529  [[image:image-20220527094330-30.png]]
530 530  
531 -Connection
512 +**Connection**
532 532  
533 533  
534 -* 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/]]
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"]]
535 535  
536 536  
537 -
538 -
539 539  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
540 540  
541 541  
542 542  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:
543 543  
544 -* 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||style="background-color: rgb(255, 255, 255);"]]
545 -* 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]]
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);"]]
546 546  
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"]]
547 547  
548 548  
549 -
550 550  == 1.6 Example 6: CEM C31 485-T1-MID Energy Meter with RS485-LN ==
551 551  
552 552  
553 553  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 CEM C31 485-T1-MID and send the data for remote minitor. The structure is like below:
554 554  
555 -* 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||style="background-color: rgb(255, 255, 255);"]]
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);"]]
556 556  
557 557  
558 -
559 -
560 560  == 1.7 Example 7: Schneider Electric PLC M221 with RS485-BL ==
561 561  
562 562  
563 563  [[image:image-20220527094556-31.png]]
564 564  
541 +
565 565  Network Structure
566 566  
567 -
568 568  * [[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 +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 +
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