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1 -XWiki.Xiaoling
1 +XWiki.Bei
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** ==
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 27  [[image:image-20220527091942-2.png]](% style="display:none" %)
28 28  
29 -Connection
30 +**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]]
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);"]]
37 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 38  
39 +* [[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 +== 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]]
48 +[[image:image-20220527092058-3.png||height="552" width="905"]]
48 48  
49 -Connection
50 +**Connection**
50 50  
51 51  
52 52  
53 -[[image:image-20220527092146-4.png]]
54 +[[image:image-20220527092146-4.png||height="507" width="906"]]
54 54  
55 -Connection
56 +**Connection**
56 56  
57 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/]]
61 +* 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"]]
62 +
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  
66 +== 1.3 Example 3: Use RS485-LN with energy meters ==
64 64  
68 +=== 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.
72 +(% 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  (((
77 77  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
77 +
78 +
78 78  )))
79 79  
80 80  [[image:image-20220527092419-5.png]]
81 81  
82 -Connection1
83 +**Connection1**
83 83  
84 84  
85 85  
... ... @@ -98,31 +98,33 @@
98 98  )))
99 99  
100 100  (((
101 -Power Source VIN to RS485-LN VIN+
102 +Power Source **VIN** to RS485-LN **VIN+**
102 102  )))
103 103  
104 104  (((
105 -Power Source GND to RS485-LN VIN-
106 +Power Source **GND** to RS485-LN **VIN-**
106 106  )))
107 107  
108 108  (((
109 109  Once there is power, the RS485-LN will be on.
111 +
112 +
110 110  )))
111 111  
112 112  [[image:image-20220527092514-6.png]]
113 113  
114 -Connection2
117 +**Connection2**
115 115  
116 116  
120 +
117 117  [[image:image-20220527092555-7.png]]
118 118  
119 -Connection3
123 +**Connection3**
120 120  
121 121  
126 +=== 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)
137 +
134 134  * The second byte : read register value function code
139 +
135 135  * 3rd and 4th bytes: start address of register to be read
141 +
136 136  * 5th and 6th bytes: Number of registers to read
143 +
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)
156 +
149 149  * The second byte: Return to read function code
158 +
150 150  * 3rd byte: total number of bytes
160 +
151 151  * 4th～5th bytes: register data
162 +
152 152  * The 6th and 7th bytes: CRC16 checksum
164 +
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  
168 +=== 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.
181 +
182 +
177 177  )))
178 178  
179 179  [[image:image-20220601143201-9.png]]
180 180  
181 -AT COMMAND
187 +**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
192 + (% _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
... ... @@ -194,16 +194,15 @@
194 194  
195 195  [[image:image-20220601143115-8.png]]
196 196  
197 -AT COMMAND
203 +**AT COMMAND**
198 198  
199 199  
200 200  
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
211 +**AT COMMAND**
207 207  
208 208  
209 209  
... ... @@ -212,7 +212,7 @@
212 212  [[image:image-20220601143519-1.png]]
213 213  
214 214  (((
215 -AT COMMAND
220 +**AT COMMAND**
216 216  )))
217 217  
218 218  (((
... ... @@ -270,9 +270,10 @@
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.**
274 274  
279 +(% 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.**
275 275  
281 +
276 276  [[image:image-20220601143642-2.png]]
277 277  
278 278  AT COMMAND
... ... @@ -285,15 +285,13 @@
285 285  [[image:image-20220527093358-15.png]]
286 286  
287 287  (((
288 -DOWNLINK
294 +**DOWNLINK**
289 289  )))
290 290  
291 -(((
292 -
293 -)))
294 294  
298 +
295 295  (((
296 -(% style="color:#4f81bd" %)**Type Code 0xAF**
300 +(% 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  
347 +(((
345 345  (% style="color:blue" %)**Example:**
346 346  )))
347 347  
... ... @@ -351,36 +351,36 @@
351 351  
352 352  [[image:image-20220601144149-6.png]]
353 353  
354 -DOWNLINK
357 +**DOWNLINK**
355 355  
356 356  
357 357  
358 358  [[image:image-20220601143803-3.png]]
359 359  
360 -DOWNLINK
363 +**DOWNLINK**
361 361  
362 362  
363 363  
364 364  [[image:image-20220601144053-5.png]]
365 365  
366 -DOWNLINK
369 +**DOWNLINK**
367 367  
368 368  
369 369  
370 370  [[image:image-20220601143921-4.png]]
371 371  
372 -DOWNLINK
375 +**DOWNLINK**
373 373  
374 374  
375 375  
376 376  [[image:image-20220601142805-5.png]]
377 377  
378 -DOWNLINK
379 -
381 +**DOWNLINK**
380 380  
381 381  
382 -=== **1.3.4 How to configure and output commands for RS485 to USB** ===
384 +=== 1.3.4 How to configure and output commands for RS485 to USB ===
383 383  
386 +
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  )))
... ... @@ -405,20 +405,18 @@
405 405  
406 406  [[image:image-20220527093708-21.png]]
407 407  
408 -USB
411 +**USB**
409 409  
410 410  
411 411  
412 412  [[image:image-20220527093747-22.png]]
413 413  
414 -USB
417 +**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  (((
... ... @@ -433,11 +433,11 @@
433 433  
434 434  [[image:image-20220527093821-23.png]]
435 435  
436 -USB
437 +**USB**
437 437  
438 438  
439 439  
440 -=== **1.3.5 How to configure multiple devices and modify device addresses** ===
441 +=== 1.3.5 How to configure multiple devices and modify device addresses ===
441 441  
442 442  
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.
... ... @@ -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  
457 +
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
490 +* 01: device adaress
489 489  
490 -* 10:function code
492 +* 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  
521 +(% 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 +528,50 @@
528 528  
529 529  [[image:image-20220527094330-30.png]]
530 530  
531 -Connection
533 +**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/]]
536 +* 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]]
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||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]]
546 546  
546 +* 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);"]]
554 +* 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  
562 +
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/]]
566 +
567 +== ==
568 +
569 +== 1.8  Example 8: This sketch is supposed to test Dragino RS485-BL (Modbus master), using an Arduino UNO as a Modbus slave. ==
570 +
571 +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.
572 +
573 +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.
574 +
575 +This is released the code under GNU LGPL licence on Github:
576 +
577 +[[https:~~/~~/github.com/zorbaproject/ArduinoModbusForDraginoRS485>>url:https://github.com/zorbaproject/ArduinoModbusForDraginoRS485]]
578 +
579 +

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