Last modified by Karry Zhuang on 2024/07/11 11:58
<
From version < 1.17 >
edited by Xiaoling
on 2022/05/12 10:21
To version < 1.10 >
edited by Xiaoling
on 2022/05/12 10:05
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -20,6 +20,7 @@
20 20  * [[Configure Manual>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : Explanation on how to integrate to Node-red and to the Mobile Phone, and with link to the Github code.
21 21  * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
22 22  
23 +
23 23  == 1.2 Example 2: Connect to Pulse Counter ==
24 24  
25 25  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:
... ... @@ -35,6 +35,7 @@
35 35  * [[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/]] : Configure Document
36 36  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
37 37  
39 +
38 38  == 1.3 Example3: Use RS485-LN with energy meters ==
39 39  
40 40  === 1.3.1 OverView ===
... ... @@ -47,7 +47,7 @@
47 47  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
48 48  )))
49 49  
50 -[[image:https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="726" width="545"]]
52 +[[image:https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="800" width="600"]]
51 51  
52 52  Connection1
53 53  
... ... @@ -63,13 +63,12 @@
63 63  
64 64  Once there is power, the RS485-LN will be on.
65 65  
66 -[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="433" width="577"]]
68 +[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="450" width="600"]]
67 67  
68 68  Connection2
69 69  
72 +[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="800" width="600"]]
70 70  
71 -[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="712" width="534"]]
72 -
73 73  Connection3
74 74  
75 75  
... ... @@ -90,9 +90,7 @@
90 90  * 5th and 6th bytes: Number of registers to read
91 91  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
92 92  
93 -(((
94 94  How to parse the reading of the return command of the parameter：
95 -)))
96 96  
97 97  (% class="box infomessage" %)
98 98  (((
... ... @@ -106,6 +106,7 @@
106 106  * The 6th and 7th bytes: CRC16 checksum
107 107  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
108 108  
108 +
109 109  === 1.3.3 How to configure RS485-LN and parse output commands ===
110 110  
111 111  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
... ... @@ -120,7 +120,7 @@
120 120  
121 121  [[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
122 122  
123 -AT COMMAND
123 +**AT COMMAND**
124 124  
125 125  (% class="box infomessage" %)
126 126  (((
... ... @@ -149,53 +149,27 @@
149 149  
150 150  [[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
151 151  
152 -(((
153 153  AT COMMAND
154 -)))
155 155  
156 -(((
157 -
158 -)))
159 -
160 -(((
161 161  **Example**: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
162 -)))
163 163  
164 -(((
165 165  RETURN1:01 03 02 00 02 39 85 00 00(return data)
166 -)))
167 167  
168 -(((
169 169  AT+DATACUT1:9,1,4+5+6+7 Take the return value 00 02 39 85 as the valid value of reading current data and used to splice payload.
170 -)))
171 171  
172 -(((
173 173  CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1
174 -)))
175 175  
176 -(((
177 177  RETURN2:01 03 02 08 DC BE 1D(return data)
178 -)))
179 179  
180 -(((
181 181  AT+DATACUT2:7,1,4+5 Take the return value 08 DC as the valid value of reading voltage data and used to splice payload.
182 -)))
183 183  
184 -(((
185 185  CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
186 -)))
187 187  
188 -(((
189 189  RETURN3:01 03 04 00 00 00 44 FA 00(return data)
190 -)))
191 191  
192 -(((
193 193  AT+DATACUT3:9,1,4+5+6+7 Take the return value 00 00 00 44 as the valid value of reading total active energy data and used to splice payload.
194 -)))
195 195  
196 -(((
197 197  Payload:01 00 02 39 85 08 DC 00 00 00 44
198 -)))
199 199  
200 200  [[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]
201 201  
... ... @@ -292,7 +292,6 @@
292 292  
293 293  DOWNLINK
294 294  
295 -
296 296  [[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]]
297 297  
298 298  DOWNLINK
... ... @@ -300,47 +300,30 @@
300 300  
301 301  === 1.3.4 How to configure and output commands for RS485 to USB ===
302 302  
303 -(((
304 304  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.
305 -)))
306 306  
307 -(((
308 308  First, connect the A+ and A- of the USB to the 485 A and 485 B of the energy meter.
309 -)))
310 310  
311 -(((
312 312  Open the serial port debugging, set the send and receive to HEX.
313 -)))
314 314  
315 -(((
316 316  Baud rate: 9600
317 -)))
318 318  
319 -(((
320 320  check digit: Even
321 -)))
322 322  
323 -[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="725" width="544"]]
286 +[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]]
324 324  
325 325  USB
326 326  
290 +[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]]
327 327  
328 -[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="728" width="546"]]
329 -
330 330  USB
331 331  
332 -
333 -(((
334 334  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.
335 -)))
336 336  
337 -(((
338 -**Example:**  input：01 03 00 31 00 02 95 c4
339 -)))
296 +Example:input：01 03 00 31 00 02 95 c4
340 340  
341 -(((
342 - output:01 03 04 00 00 00 42 7A 02
343 -)))
298 +{{{ output:01 03 04 00 00 00 42 7A 02
299 +}}}
344 344  
345 345  [[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
346 346  
... ... @@ -350,37 +350,21 @@
350 350  
351 351  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.
352 352  
353 -(((
354 -(((
355 355  Set the device address according to the parameters in the appendix of the MODBUS communication protocol.
356 -)))
357 -)))
358 358  
359 359  [[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]
360 360  
361 -**Example**:These two meters are examples of setting parameters and device addresses.
313 +Example:These two meters are examples of setting parameters and device addresses.
362 362  
363 -[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="737" width="553"]]
315 +[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]]
364 364  
365 -[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="733" width="550"]]
317 +[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="800" width="600"]]
366 366  
367 -(((
368 -(((
369 369  First of all, since the default device address of the energy meter is 01, the configuration of two energy meters will conflict, so we first connect an energy meter and configure the device address.
370 -)))
371 -)))
372 372  
373 -(((
374 -(((
375 375  We can use AT+CFGDEV to set the device address.
376 -)))
377 -)))
378 378  
379 -(((
380 -(((
381 381  We modify the device address 01 of the first energy meter to 02.
382 -)))
383 -)))
384 384  
385 385  [[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]
386 386  
... ... @@ -415,6 +415,7 @@
415 415  * 08 DF is the valid value of the meter with device address 02.
416 416  * 43 62 is the valid value of the meter with device address 01.
417 417  
358 +
418 418  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
419 419  
420 420  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 SCHNEIDER SMART and Monitor and control your cabinet remotely with no wires and with Dragino RS485-LN LoRaWAN technology. The structure is like below:
... ... @@ -425,6 +425,7 @@
425 425  
426 426  * [[Circuit Breaker Remote Open Close>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Circuit_Breaker_Remote_Open_Close/]] : Configure Documen
427 427  
369 +
428 428  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
429 429  
430 430  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:
... ... @@ -433,6 +433,7 @@
433 433  
434 434  * [[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]] : Configure Document for RS485-LN
435 435  
378 +
436 436  == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN ==
437 437  
438 438  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:
... ... @@ -439,6 +439,7 @@
439 439  
440 440  * [[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]] : Configure Document For RS485-LN
441 441  
385 +
442 442  == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL ==
443 443  
444 444  [[image:https://wiki.dragino.com/images/thumb/9/97/PLC_M221.png/600px-PLC_M221.png||height="353" width="600"]]

Applications

Navigation

Copyright ©2010-2022 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0