Last modified by Karry Zhuang on 2024/07/11 11:58
<
From version < 1.18 >
edited by Xiaoling
on 2022/05/12 10:26
To version < 1.8 >
edited by Xiaoling
on 2022/05/12 10:03
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -10,7 +10,6 @@
10 10  
11 11  Connection
12 12  
13 -
14 14  [[image:https://wiki.dragino.com/images/thumb/f/f2/RS485_02.png/600px-RS485_02.png||height="743" width="528"]](% style="display:none" %)
15 15  
16 16  Connection
... ... @@ -21,6 +21,7 @@
21 21  * [[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.
22 22  * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
23 23  
23 +
24 24  == 1.2 Example 2: Connect to Pulse Counter ==
25 25  
26 26  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:
... ... @@ -29,7 +29,6 @@
29 29  
30 30  Connection
31 31  
32 -
33 33  [[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]]
34 34  
35 35  Connection
... ... @@ -37,6 +37,7 @@
37 37  * [[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
38 38  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
39 39  
39 +
40 40  == 1.3 Example3: Use RS485-LN with energy meters ==
41 41  
42 42  === 1.3.1 OverView ===
... ... @@ -49,7 +49,7 @@
49 49  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
50 50  )))
51 51  
52 -[[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"]]
53 53  
54 54  Connection1
55 55  
... ... @@ -65,13 +65,12 @@
65 65  
66 66  Once there is power, the RS485-LN will be on.
67 67  
68 -[[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"]]
69 69  
70 70  Connection2
71 71  
72 +[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="800" width="600"]]
72 72  
73 -[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="712" width="534"]]
74 -
75 75  Connection3
76 76  
77 77  
... ... @@ -92,9 +92,7 @@
92 92  * 5th and 6th bytes: Number of registers to read
93 93  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
94 94  
95 -(((
96 96  How to parse the reading of the return command of the parameter：
97 -)))
98 98  
99 99  (% class="box infomessage" %)
100 100  (((
... ... @@ -108,6 +108,7 @@
108 108  * The 6th and 7th bytes: CRC16 checksum
109 109  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
110 110  
108 +
111 111  === 1.3.3 How to configure RS485-LN and parse output commands ===
112 112  
113 113  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
... ... @@ -122,7 +122,7 @@
122 122  
123 123  [[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
124 124  
125 -AT COMMAND
123 +**AT COMMAND**
126 126  
127 127  (% class="box infomessage" %)
128 128  (((
... ... @@ -151,53 +151,27 @@
151 151  
152 152  [[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
153 153  
154 -(((
155 155  AT COMMAND
156 -)))
157 157  
158 -(((
159 -
160 -)))
161 -
162 -(((
163 163  **Example**: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
164 -)))
165 165  
166 -(((
167 167  RETURN1:01 03 02 00 02 39 85 00 00(return data)
168 -)))
169 169  
170 -(((
171 171  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.
172 -)))
173 173  
174 -(((
175 175  CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1
176 -)))
177 177  
178 -(((
179 179  RETURN2:01 03 02 08 DC BE 1D(return data)
180 -)))
181 181  
182 -(((
183 183  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.
184 -)))
185 185  
186 -(((
187 187  CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
188 -)))
189 189  
190 -(((
191 191  RETURN3:01 03 04 00 00 00 44 FA 00(return data)
192 -)))
193 193  
194 -(((
195 195  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.
196 -)))
197 197  
198 -(((
199 199  Payload:01 00 02 39 85 08 DC 00 00 00 44
200 -)))
201 201  
202 202  [[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]
203 203  
... ... @@ -215,65 +215,33 @@
215 215  
216 216  [[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
217 217  
218 -(((
219 219  DOWNLINK
220 -)))
221 221  
222 -(((
223 -
224 -)))
225 -
226 -(((
227 227  Type Code 0xAF
228 -)))
229 229  
230 -(((
231 231  0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
232 -)))
233 233  
234 -(((
235 235  Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
236 -)))
237 237  
238 -(((
239 239  Format: AF MM NN LL XX XX XX XX YY
240 -)))
241 241  
242 -(((
243 243  Where:
244 -)))
245 245  
246 -(((
247 247  MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
248 -)))
249 249  
250 -(((
251 251  NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
252 -)))
253 253  
254 -(((
255 255  LL: The length of AT+COMMAND or AT+DATACUT command
256 -)))
257 257  
258 -(((
259 259  XX XX XX XX: AT+COMMAND or AT+DATACUT command
260 -)))
261 261  
262 -(((
263 263  YY: If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN
264 -)))
265 265  
266 -(((
267 267  will execute an uplink after got this command.
268 -)))
269 269  
270 -(((
271 271  Example:
272 -)))
273 273  
274 -(((
275 275  AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1
276 -)))
277 277  
278 278  [[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]]
279 279  
... ... @@ -294,7 +294,6 @@
294 294  
295 295  DOWNLINK
296 296  
297 -
298 298  [[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]]
299 299  
300 300  DOWNLINK
... ... @@ -302,47 +302,30 @@
302 302  
303 303  === 1.3.4 How to configure and output commands for RS485 to USB ===
304 304  
305 -(((
306 306  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.
307 -)))
308 308  
309 -(((
310 310  First, connect the A+ and A- of the USB to the 485 A and 485 B of the energy meter.
311 -)))
312 312  
313 -(((
314 314  Open the serial port debugging, set the send and receive to HEX.
315 -)))
316 316  
317 -(((
318 318  Baud rate: 9600
319 -)))
320 320  
321 -(((
322 322  check digit: Even
323 -)))
324 324  
325 -[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="725" width="544"]]
254 +[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]]
326 326  
327 327  USB
328 328  
258 +[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]]
329 329  
330 -[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="728" width="546"]]
331 -
332 332  USB
333 333  
334 -
335 -(((
336 336  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.
337 -)))
338 338  
339 -(((
340 -**Example:**  input：01 03 00 31 00 02 95 c4
341 -)))
264 +Example:input：01 03 00 31 00 02 95 c4
342 342  
343 -(((
344 - output:01 03 04 00 00 00 42 7A 02
345 -)))
266 +{{{ output:01 03 04 00 00 00 42 7A 02
267 +}}}
346 346  
347 347  [[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
348 348  
... ... @@ -352,37 +352,21 @@
352 352  
353 353  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.
354 354  
355 -(((
356 -(((
357 357  Set the device address according to the parameters in the appendix of the MODBUS communication protocol.
358 -)))
359 -)))
360 360  
361 361  [[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]
362 362  
363 -**Example**:These two meters are examples of setting parameters and device addresses.
281 +Example:These two meters are examples of setting parameters and device addresses.
364 364  
365 -[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="737" width="553"]]
283 +[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]]
366 366  
367 -[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="733" width="550"]]
285 +[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="800" width="600"]]
368 368  
369 -(((
370 -(((
371 371  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.
372 -)))
373 -)))
374 374  
375 -(((
376 -(((
377 377  We can use AT+CFGDEV to set the device address.
378 -)))
379 -)))
380 380  
381 -(((
382 -(((
383 383  We modify the device address 01 of the first energy meter to 02.
384 -)))
385 -)))
386 386  
387 387  [[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]
388 388  
... ... @@ -417,6 +417,7 @@
417 417  * 08 DF is the valid value of the meter with device address 02.
418 418  * 43 62 is the valid value of the meter with device address 01.
419 419  
326 +
420 420  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
421 421  
422 422  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:
... ... @@ -427,6 +427,7 @@
427 427  
428 428  * [[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
429 429  
337 +
430 430  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
431 431  
432 432  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:
... ... @@ -435,6 +435,7 @@
435 435  
436 436  * [[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
437 437  
346 +
438 438  == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN ==
439 439  
440 440  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:
... ... @@ -441,6 +441,7 @@
441 441  
442 442  * [[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
443 443  
353 +
444 444  == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL ==
445 445  
446 446  [[image:https://wiki.dragino.com/images/thumb/9/97/PLC_M221.png/600px-PLC_M221.png||height="353" width="600"]]

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0