Last modified by Karry Zhuang on 2024/07/11 11:58
<
From version < 60.12 >
edited by Xiaoling
on 2022/12/14 14:22
To version < 62.1 >
edited by Bei Jinggeng
on 2023/08/08 15:23
>
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Author
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1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
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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);"]]
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 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 +
37 37  * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
38 38  
39 -
40 -
41 41  == 1.2 Example 2: Connect to Pulse Counter ==
42 42  
43 43  
... ... @@ -58,10 +58,9 @@
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 +
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 -
64 -
65 65  == 1.3 Example 3: Use RS485-LN with energy meters ==
66 66  
67 67  === 1.3.1 OverView ===
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98 98  )))
99 99  
100 100  (((
101 -Power Source VIN to RS485-LN VIN+
100 +Power Source **VIN** to RS485-LN **VIN+**
102 102  )))
103 103  
104 104  (((
105 -Power Source GND to RS485-LN VIN-
104 +Power Source **GND** to RS485-LN **VIN-**
106 106  )))
107 107  
108 108  (((
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133 133  (% style="color:blue" %)**Example:**(%%)  AT+COMMAND1=01 03 00 00 00 01 84 0A
134 134  
135 135  * The first byte : slave address code (=001～247)
135 +
136 136  * The second byte : read register value function code
137 +
137 137  * 3rd and 4th bytes: start address of register to be read
139 +
138 138  * 5th and 6th bytes: Number of registers to read
141 +
139 139  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
140 140  
141 141  (((
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148 148  )))
149 149  
150 150  * The first byte ARD: slave address code (=001～254)
154 +
151 151  * The second byte: Return to read function code
156 +
152 152  * 3rd byte: total number of bytes
158 +
153 153  * 4th～5th bytes: register data
160 +
154 154  * The 6th and 7th bytes: CRC16 checksum
162 +
155 155  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
156 156  
157 -(% class="wikigeneratedid" %)
158 -(((
159 -
160 -
161 -
162 -)))
163 -
164 164  === 1.3.3 How to configure RS485-LN and parse output commands ===
165 165  
166 166  
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167 167  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
168 168  
169 169  
170 -==== 1.3.3.1 via AT COMMAND ====
171 +==== **1.3.3.1 via AT COMMAND** ====
171 171  
172 172  
173 173  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.
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223 223  (((
224 224  (% style="color:blue" %)**Example**:
225 225  
226 -
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  
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265 265  
266 266  (((
267 267  Payload: 01 00 02 39 85 08 DC 00 00 00 44
268 -
269 -
270 270  )))
271 271  
272 272  [[image:image-20220601142936-6.png]]
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284 284  
285 285  
286 286  
287 -==== 1.3.3.2 via LoRaWAN DOWNLINK ====
285 +==== **1.3.3.2 via LoRaWAN DOWNLINK** ====
288 288  
289 289  
290 290  [[image:image-20220527093358-15.png]]
... ... @@ -293,10 +293,8 @@
293 293  **DOWNLINK**
294 294  )))
295 295  
296 -(((
297 -
298 -)))
299 299  
295 +
300 300  (((
301 301  (% style="color:blue" %)**Type Code 0xAF**
302 302  )))
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310 310  
311 311  (((
312 312  (% style="color:red" %)**Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
313 -
314 -
315 315  )))
316 316  
317 317  (((
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346 346  will execute an uplink after got this command.
347 347  )))
348 348  
349 -(((
350 -
351 351  
344 +(((
352 352  (% style="color:blue" %)**Example:**
353 353  )))
354 354  
... ... @@ -424,8 +424,6 @@
424 424  
425 425  (((
426 426  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 -
429 429  )))
430 430  
431 431  (((
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526 526  
527 527  (% style="display:none" %) (%%)
528 528  
529 -(% style="display:none" %) (%%)
530 530  
531 531  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
532 532  
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537 537  
538 538  [[image:image-20220527094330-30.png]]
539 539  
540 -Connection
530 +**Connection**
541 541  
542 542  
543 543  * 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"]]
544 544  
545 -
546 -
547 547  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
548 548  
549 549  
... ... @@ -550,10 +550,9 @@
550 550  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:
551 551  
552 552  * 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 +
553 553  * 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"]]
554 554  
555 -
556 -
557 557  == 1.6 Example 6: CEM C31 485-T1-MID Energy Meter with RS485-LN ==
558 558  
559 559  
... ... @@ -561,14 +561,24 @@
561 561  
562 562  * 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);"]]
563 563  
564 -
565 -
566 566  == 1.7 Example 7: Schneider Electric PLC M221 with RS485-BL ==
567 567  
568 568  
569 569  [[image:image-20220527094556-31.png]]
570 570  
556 +
571 571  Network Structure
572 572  
573 -
574 574  * [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]]
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 +

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