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edited by Xiaoling
on 2022/07/14 09:55
To version < 76.1 >
edited by Karry Zhuang
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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 -== **1.2 Example 2: Connect to Pulse Counter** ==
41 41  
41 +== 1.2 Example 2: Connect to Pulse Counter ==
42 42  
43 +
43 43  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:
44 44  
45 45  
46 -[[image:image-20220527092058-3.png]]
47 +[[image:image-20220527092058-3.png||height="552" width="905"]]
47 47  
48 -Connection
49 +**Connection**
49 49  
50 50  
52 +[[image:image-20220527092146-4.png||height="507" width="906"]]
51 51  
52 -[[image:image-20220527092146-4.png]]
54 +**Connection**
53 53  
54 -Connection
55 55  
56 -
57 57  (% style="color:blue" %)**Related documents:**
58 58  
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/]]
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 +
60 60  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
61 61  
62 62  
64 +== 1.3 Example 3: Use RS485-LN with energy meters ==
63 63  
66 +=== 1.3.1 OverView ===
64 64  
65 -== **1.3 Example3: Use RS485-LN with energy meters** ==
66 66  
67 -
68 -=== **1.3.1 OverView** ===
69 -
70 -
71 71  (((
72 -(% 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.**
73 73  )))
74 74  
75 75  (((
... ... @@ -78,10 +78,9 @@
78 78  
79 79  [[image:image-20220527092419-5.png]]
80 80  
81 -Connection1
79 +**Connection1**
82 82  
83 83  
84 -
85 85  (((
86 86  (% style="color:blue" %)**How to connect with Energy Meter：**
87 87  
... ... @@ -97,11 +97,11 @@
97 97  )))
98 98  
99 99  (((
100 -Power Source VIN to RS485-LN VIN+
97 +Power Source **VIN** to RS485-LN **VIN+**
101 101  )))
102 102  
103 103  (((
104 -Power Source GND to RS485-LN VIN-
101 +Power Source **GND** to RS485-LN **VIN-**
105 105  )))
106 106  
107 107  (((
... ... @@ -110,16 +110,15 @@
110 110  
111 111  [[image:image-20220527092514-6.png]]
112 112  
113 -Connection2
110 +**Connection2**
114 114  
115 115  
116 -
117 117  [[image:image-20220527092555-7.png]]
118 118  
119 -Connection3
115 +**Connection3**
120 120  
121 121  
122 -=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
118 +=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
123 123  
124 124  
125 125  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.
... ... @@ -130,9 +130,13 @@
130 130  (% style="color:blue" %)**Example:**(%%)  AT+COMMAND1=01 03 00 00 00 01 84 0A
131 131  
132 132  * The first byte : slave address code (=001～247)
129 +
133 133  * The second byte : read register value function code
131 +
134 134  * 3rd and 4th bytes: start address of register to be read
133 +
135 135  * 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  (((
... ... @@ -145,23 +145,21 @@
145 145  )))
146 146  
147 147  * The first byte ARD: slave address code (=001～254)
148 +
148 148  * The second byte: Return to read function code
150 +
149 149  * 3rd byte: total number of bytes
152 +
150 150  * 4th～5th bytes: register data
154 +
151 151  * The 6th and 7th bytes: CRC16 checksum
156 +
152 152  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
153 153  
154 -(% class="wikigeneratedid" %)
155 -(((
156 -
157 157  
160 +=== 1.3.3 How to configure RS485-LN and parse output commands ===
158 158  
159 -
160 -)))
161 161  
162 -=== **1.3.3 How to configure RS485-LN and parse output commands** ===
163 -
164 -
165 165  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
166 166  
167 167  
... ... @@ -172,16 +172,18 @@
172 172  
173 173  (((
174 174  If the configured parameters and commands are incorrect, the return value is not obtained.
173 +
174 +
175 175  )))
176 176  
177 177  [[image:image-20220601143201-9.png]]
178 178  
179 -AT COMMAND
179 +**AT COMMAND**
180 180  
181 181  
182 182  (% class="box infomessage" %)
183 183  (((
184 - **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
185 185  )))
186 186  
187 187  a:  length for the return of AT+COMMAND
... ... @@ -192,25 +192,22 @@
192 192  
193 193  [[image:image-20220601143115-8.png]]
194 194  
195 -AT COMMAND
195 +**AT COMMAND**
196 196  
197 197  
198 -
199 199  PAYLOAD is available after the valid value is intercepted.
200 200  
201 -
202 202  [[image:image-20220601143046-7.png]]
203 203  
204 -AT COMMAND
202 +**AT COMMAND**
205 205  
206 206  
207 -
208 208  You can get configured PAYLOAD on TTN.
209 209  
210 210  [[image:image-20220601143519-1.png]]
211 211  
212 212  (((
213 -AT COMMAND
210 +**AT COMMAND**
214 214  )))
215 215  
216 216  (((
... ... @@ -220,7 +220,7 @@
220 220  (((
221 221  (% style="color:blue" %)**Example**:
222 222  
223 -CMD1: Read current data with MODBUS command. address: 0x03 AT+COMMAND1= 01 03 00 03 00 01,1
220 +(% style="color:red" %)**CMD1:**(%%) Read current data with MODBUS command. address: 0x03 AT+COMMAND1= 01 03 00 03 00 01,1
224 224  )))
225 225  
226 226  (((
... ... @@ -234,7 +234,7 @@
234 234  )))
235 235  
236 236  (((
237 -CMD2: Read voltage data with MODBUS command. address: 0x00 AT+COMMAND2= 01 03 00 00 00 01,1
234 +(% style="color:red" %)**CMD2: **(%%)Read voltage data with MODBUS command. address: 0x00 AT+COMMAND2= 01 03 00 00 00 01,1
238 238  )))
239 239  
240 240  (((
... ... @@ -248,7 +248,7 @@
248 248  )))
249 249  
250 250  (((
251 -CMD3: Read total active energy data with MODBUS command. address: 0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
248 +(% style="color:red" %)**CMD3:**(%%) Read total active energy data with MODBUS command. address: 0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
252 252  )))
253 253  
254 254  (((
... ... @@ -268,7 +268,7 @@
268 268  AT COMMAND
269 269  
270 270  
271 -(% 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.**
272 272  
273 273  
274 274  [[image:image-20220601143642-2.png]]
... ... @@ -282,15 +282,12 @@
282 282  [[image:image-20220527093358-15.png]]
283 283  
284 284  (((
285 -DOWNLINK
282 +**DOWNLINK**
286 286  )))
287 287  
288 -(((
289 -
290 -)))
291 291  
292 292  (((
293 -(% style="color:#4f81bd" %)**Type Code 0xAF**
287 +(% style="color:blue" %)**Type Code 0xAF**
294 294  )))
295 295  
296 296  (((
... ... @@ -301,7 +301,7 @@
301 301  )))
302 302  
303 303  (((
304 -(% style="color:red" %)Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
298 +(% style="color:red" %)**Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
305 305  )))
306 306  
307 307  (((
... ... @@ -336,9 +336,8 @@
336 336  will execute an uplink after got this command.
337 337  )))
338 338  
339 -(((
340 -
341 341  
334 +(((
342 342  (% style="color:blue" %)**Example:**
343 343  )))
344 344  
... ... @@ -348,35 +348,32 @@
348 348  
349 349  [[image:image-20220601144149-6.png]]
350 350  
351 -DOWNLINK
344 +**DOWNLINK**
352 352  
353 353  
354 -
355 355  [[image:image-20220601143803-3.png]]
356 356  
357 -DOWNLINK
349 +**DOWNLINK**
358 358  
359 359  
360 -
361 361  [[image:image-20220601144053-5.png]]
362 362  
363 -DOWNLINK
354 +**DOWNLINK**
364 364  
365 365  
366 -
367 367  [[image:image-20220601143921-4.png]]
368 368  
369 -DOWNLINK
359 +**DOWNLINK**
370 370  
371 371  
372 -
373 373  [[image:image-20220601142805-5.png]]
374 374  
375 -DOWNLINK
376 -
364 +**DOWNLINK**
377 377  
378 -=== **1.3.4 How to configure and output commands for RS485 to USB** ===
379 379  
367 +=== 1.3.4 How to configure and output commands for RS485 to USB ===
368 +
369 +
380 380  (((
381 381  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.
382 382  )))
... ... @@ -395,26 +395,21 @@
395 395  
396 396  (((
397 397  check digit: Even
398 -
399 -
400 400  )))
401 401  
402 402  [[image:image-20220527093708-21.png]]
403 403  
404 -USB
392 +**USB**
405 405  
406 406  
407 -
408 408  [[image:image-20220527093747-22.png]]
409 409  
410 -USB
397 +**USB**
411 411  
412 412  
413 413  
414 414  (((
415 415  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.
416 -
417 -
418 418  )))
419 419  
420 420  (((
... ... @@ -429,10 +429,10 @@
429 429  
430 430  [[image:image-20220527093821-23.png]]
431 431  
432 -USB
417 +**USB**
433 433  
434 434  
435 -=== **1.3.5 How to configure multiple devices and modify device addresses** ===
420 +=== 1.3.5 How to configure multiple devices and modify device addresses ===
436 436  
437 437  
438 438  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.
... ... @@ -448,6 +448,7 @@
448 448  
449 449  (% style="color:blue" %)**Example**(%%): These two meters are examples of setting parameters and device addresses.
450 450  
436 +
451 451  [[image:image-20220527093950-25.png]]
452 452  
453 453  
... ... @@ -462,7 +462,7 @@
462 462  
463 463  (((
464 464  (((
465 -We can use **AT+CFGDEV** to set the device address.
451 +We can use (% style="color:blue" %)**AT+CFGDEV**(%%) to set the device address.
466 466  )))
467 467  )))
468 468  
... ... @@ -480,9 +480,9 @@
480 480  **AT+CFGDEV:01 10 00 61 00 01 02 00 02,1**
481 481  )))
482 482  
483 -* 01:device adaress
469 +* 01: device adaress
484 484  
485 -* 10:function code
471 +* 10: function code
486 486  
487 487  * 00 61：Register address
488 488  
... ... @@ -506,11 +506,12 @@
506 506  [[image:image-20220601142607-4.png]]
507 507  
508 508  
509 -**PAYLOAD:01 08 DF 43 62**
495 +(% style="color:blue" %)**PAYLOAD: 01 08 DF 43 62**
510 510  
511 511  * 08 DF is the valid value of the meter with device address 02.
512 512  * 43 62 is the valid value of the meter with device address 01.
513 513  
500 +(% style="display:none" %) (%%)
514 514  
515 515  
516 516  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
... ... @@ -522,21 +522,20 @@
522 522  
523 523  [[image:image-20220527094330-30.png]]
524 524  
525 -Connection
512 +**Connection**
526 526  
527 527  
528 -* 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"]]
529 529  
530 530  
531 -
532 532  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
533 533  
534 534  
535 535  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:
536 536  
537 -* 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);"]]
538 -* 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);"]]
539 539  
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"]]
540 540  
541 541  
542 542  == 1.6 Example 6: CEM C31 485-T1-MID Energy Meter with RS485-LN ==
... ... @@ -544,16 +544,38 @@
544 544  
545 545  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:
546 546  
547 -* 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);"]]
548 548  
549 549  
550 -
551 551  == 1.7 Example 7: Schneider Electric PLC M221 with RS485-BL ==
552 552  
553 553  
554 554  [[image:image-20220527094556-31.png]]
555 555  
541 +
556 556  Network Structure
557 557  
558 -
559 559  * [[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 +
566 +* **Specific steps**:  RS485-LN with ultrasonic flow meter
567 +*
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