Last modified by Karry Zhuang on 2024/07/11 11:58
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From version < 4.3 >
edited by Xiaoling
on 2022/05/12 10:44
To version < 1.7 >
edited by Xiaoling
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... ... @@ -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 ===
... ... @@ -49,41 +49,28 @@
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  
56 -(((
57 57  How to connect with Energy Meter：
58 -)))
59 59  
60 -(((
61 61  Follow the instructions of the electric energy meter to connect the phase line and the neutral line, and then connect 485A+ and 485B- to RS485A and RA485B of RS485-LN respectively.
62 -)))
63 63  
64 -(((
65 65  The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
66 -)))
67 67  
68 -(((
69 69  Power Source VIN to RS485-LN VIN+
70 -)))
71 71  
72 -(((
73 73  Power Source GND to RS485-LN VIN-
74 -)))
75 75  
76 -(((
77 77  Once there is power, the RS485-LN will be on.
78 -)))
79 79  
80 -[[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"]]
81 81  
82 82  Connection2
83 83  
72 +[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="800" width="600"]]
84 84  
85 -[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="712" width="534"]]
86 -
87 87  Connection3
88 88  
89 89  
... ... @@ -93,10 +93,7 @@
93 93  
94 94  [[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]]
95 95  
96 -(% class="box infomessage" %)
97 -(((
98 98  Example:AT+COMMAND1=01 03 00 00 00 01 84 0A
99 -)))
100 100  
101 101  * The first byte : slave address code (=001～247)
102 102  * The second byte : read register value function code
... ... @@ -104,14 +104,9 @@
104 104  * 5th and 6th bytes: Number of registers to read
105 105  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
106 106  
107 -(((
108 108  How to parse the reading of the return command of the parameter：
109 -)))
110 110  
111 -(% class="box infomessage" %)
112 -(((
113 113  Example:RETURN1：01 03 02 08 FD 7E 05
114 -)))
115 115  
116 116  * The first byte ARD: slave address code (=001～254)
117 117  * The second byte: Return to read function code
... ... @@ -120,26 +120,22 @@
120 120  * The 6th and 7th bytes: CRC16 checksum
121 121  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
122 122  
102 +
123 123  === 1.3.3 How to configure RS485-LN and parse output commands ===
124 124  
125 125  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
126 126  
127 -==== 1.3.3.1 via AT COMMAND: ====
107 +==== via AT COMMAND: ====
128 128  
129 -First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct.
109 +First, we can use AT+CFGDEV to get the return value, and we can also judge whether the input parameters are correct.
130 130  
131 -(((
132 132  If the configured parameters and commands are incorrect, the return value is not obtained.
133 -)))
134 134  
135 135  [[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
136 136  
137 137  AT COMMAND
138 138  
139 -(% class="box infomessage" %)
140 -(((
141 - AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
142 -)))
117 +AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
143 143  
144 144  a: length for the return of AT+COMMAND
145 145  
... ... @@ -153,7 +153,6 @@
153 153  
154 154  PAYLOAD is available after the valid value is intercepted.
155 155  
156 -
157 157  [[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]]
158 158  
159 159  AT COMMAND
... ... @@ -160,56 +160,29 @@
160 160  
161 161  You can get configured PAYLOAD on TTN.
162 162  
163 -
164 164  [[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
165 165  
166 -(((
167 167  AT COMMAND
168 -)))
169 169  
170 -(((
171 -
172 -)))
141 +Example: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
173 173  
174 -(((
175 -**Example**: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
176 -)))
177 -
178 -(((
179 179  RETURN1:01 03 02 00 02 39 85 00 00(return data)
180 -)))
181 181  
182 -(((
183 183  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.
184 -)))
185 185  
186 -(((
187 187  CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1
188 -)))
189 189  
190 -(((
191 191  RETURN2:01 03 02 08 DC BE 1D(return data)
192 -)))
193 193  
194 -(((
195 195  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.
196 -)))
197 197  
198 -(((
199 199  CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
200 -)))
201 201  
202 -(((
203 203  RETURN3:01 03 04 00 00 00 44 FA 00(return data)
204 -)))
205 205  
206 -(((
207 207  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.
208 -)))
209 209  
210 -(((
211 211  Payload:01 00 02 39 85 08 DC 00 00 00 44
212 -)))
213 213  
214 214  [[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]
215 215  
... ... @@ -217,99 +217,58 @@
217 217  
218 218  01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.
219 219  
220 -
221 221  [[~[~[image:https://wiki.dragino.com/images/thumb/b/b8/AT_COMMAND11.png/600px-AT_COMMAND11.png~|~|height="271" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:AT_COMMAND11.png]]
222 222  
223 223  AT COMMAND
224 224  
171 +==== 1.3.3.1 via LoRaWAN DOWNLINK ====
225 225  
226 -==== 1.3.3.2 via LoRaWAN DOWNLINK ====
173 +[[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
227 227  
228 -[[image:image-20220512104358-3.png]]
229 -
230 -(((
231 231  DOWNLINK
232 -)))
233 233  
234 -(((
235 -
236 -)))
177 +Type Code 0xAF
237 237  
238 -(((
239 -**Type Code 0xAF**
240 -)))
241 -
242 -(((
243 -(% class="box infomessage" %)
244 -(((
245 245  0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
246 -)))
247 -)))
248 248  
249 -(((
250 250  Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
251 -)))
252 252  
253 -(((
254 254  Format: AF MM NN LL XX XX XX XX YY
255 -)))
256 256  
257 -(((
258 258  Where:
259 -)))
260 260  
261 -(((
262 262  MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
263 -)))
264 264  
265 -(((
266 266  NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
267 -)))
268 268  
269 -(((
270 270  LL: The length of AT+COMMAND or AT+DATACUT command
271 -)))
272 272  
273 -(((
274 274  XX XX XX XX: AT+COMMAND or AT+DATACUT command
275 -)))
276 276  
277 -(((
278 278  YY: If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN
279 -)))
280 280  
281 -(((
282 282  will execute an uplink after got this command.
283 -)))
284 284  
285 -(((
286 286  Example:
287 -)))
288 288  
289 -(((
290 290  AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1
291 -)))
292 292  
293 293  [[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]]
294 294  
295 295  DOWNLINK
296 296  
297 -
298 298  [[~[~[image:https://wiki.dragino.com/images/thumb/2/20/DOWNLINK_METER3.png/600px-DOWNLINK_METER3.png~|~|height="105" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER3.png]]
299 299  
300 300  DOWNLINK
301 301  
302 -
303 303  [[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]]
304 304  
305 305  DOWNLINK
306 306  
307 -
308 308  [[~[~[image:https://wiki.dragino.com/images/thumb/3/39/DOWNLINK_METER5.png/600px-DOWNLINK_METER5.png~|~|height="176" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER5.png]]
309 309  
310 310  DOWNLINK
311 311  
312 -
313 313  [[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]]
314 314  
315 315  DOWNLINK
... ... @@ -317,47 +317,30 @@
317 317  
318 318  === 1.3.4 How to configure and output commands for RS485 to USB ===
319 319  
320 -(((
321 321  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.
322 -)))
323 323  
324 -(((
325 325  First, connect the A+ and A- of the USB to the 485 A and 485 B of the energy meter.
326 -)))
327 327  
328 -(((
329 329  Open the serial port debugging, set the send and receive to HEX.
330 -)))
331 331  
332 -(((
333 333  Baud rate: 9600
334 -)))
335 335  
336 -(((
337 337  check digit: Even
338 -)))
339 339  
340 -[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="725" width="544"]]
236 +[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]]
341 341  
342 342  USB
343 343  
240 +[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]]
344 344  
345 -[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="728" width="546"]]
346 -
347 347  USB
348 348  
349 -
350 -(((
351 351  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.
352 -)))
353 353  
354 -(((
355 -**Example:**  input：01 03 00 31 00 02 95 c4
356 -)))
246 +Example:input：01 03 00 31 00 02 95 c4
357 357  
358 -(((
359 - output:01 03 04 00 00 00 42 7A 02
360 -)))
248 +{{{ output:01 03 04 00 00 00 42 7A 02
249 +}}}
361 361  
362 362  [[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
363 363  
... ... @@ -367,37 +367,21 @@
367 367  
368 368  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.
369 369  
370 -(((
371 -(((
372 372  Set the device address according to the parameters in the appendix of the MODBUS communication protocol.
373 -)))
374 -)))
375 375  
376 376  [[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]
377 377  
378 -**Example**:These two meters are examples of setting parameters and device addresses.
263 +Example:These two meters are examples of setting parameters and device addresses.
379 379  
380 -[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="737" width="553"]]
265 +[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]]
381 381  
382 -[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="733" width="550"]]
267 +[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="800" width="600"]]
383 383  
384 -(((
385 -(((
386 386  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.
387 -)))
388 -)))
389 389  
390 -(((
391 -(((
392 392  We can use AT+CFGDEV to set the device address.
393 -)))
394 -)))
395 395  
396 -(((
397 -(((
398 398  We modify the device address 01 of the first energy meter to 02.
399 -)))
400 -)))
401 401  
402 402  [[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]
403 403  
... ... @@ -432,6 +432,7 @@
432 432  * 08 DF is the valid value of the meter with device address 02.
433 433  * 43 62 is the valid value of the meter with device address 01.
434 434  
308 +
435 435  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
436 436  
437 437  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:
... ... @@ -442,6 +442,7 @@
442 442  
443 443  * [[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
444 444  
319 +
445 445  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
446 446  
447 447  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:
... ... @@ -450,6 +450,7 @@
450 450  
451 451  * [[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
452 452  
328 +
453 453  == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN ==
454 454  
455 455  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:
... ... @@ -456,6 +456,7 @@
456 456  
457 457  * [[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
458 458  
335 +
459 459  == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL ==
460 460  
461 461  [[image:https://wiki.dragino.com/images/thumb/9/97/PLC_M221.png/600px-PLC_M221.png||height="353" width="600"]]
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