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Summary

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1 -(% class="wikigeneratedid" %)
2 - **Contents:**
3 -
4 -{{toc/}}
5 -
6 -
7 -
8 -
9 -
10 -
11 11  = 1. Introduction =
12 12  
13 13  This article provide the examples for RS485-LN to connect to different type of RS485 sensors.
14 14  
15 -
16 16  == 1.1 Example 1: Connect to Leak relay and VFD ==
17 17  
18 18  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:
19 19  
20 -[[image:image-20220527091852-1.png]]
9 +[[image:https://wiki.dragino.com/images/thumb/5/5c/RS485_01.png/600px-RS485_01.png||height="297" width="534"]]
21 21  
22 22  Connection
23 23  
13 +[[image:https://wiki.dragino.com/images/thumb/f/f2/RS485_02.png/600px-RS485_02.png||height="743" width="528"]](% style="display:none" %)
24 24  
25 -
26 -[[image:image-20220527091942-2.png]](% style="display:none" %)
27 -
28 28  Connection
29 29  
30 -
31 31  Related documents:
32 32  
33 33  * [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure
... ... @@ -34,23 +34,22 @@
34 34  * [[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.
35 35  * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
36 36  
23 +
37 37  == 1.2 Example 2: Connect to Pulse Counter ==
38 38  
39 39  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:
40 40  
41 -[[image:image-20220527092058-3.png]]
28 +[[image:https://wiki.dragino.com/images/thumb/3/34/RS485_02_1.png/600px-RS485_02_1.png||height="364" width="600"]]
42 42  
43 43  Connection
44 44  
32 +[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]]
45 45  
46 -[[image:image-20220527092146-4.png]]
47 -
48 48  Connection
49 49  
50 50  * [[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
51 51  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
52 52  
53 -== ==
54 54  
55 55  == 1.3 Example3: Use RS485-LN with energy meters ==
56 56  
... ... @@ -57,7 +57,7 @@
57 57  === 1.3.1 OverView ===
58 58  
59 59  (((
60 -**Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
45 +Note：The specifications of each energy meter are different, please refer to your own energy meter specifications.
61 61  )))
62 62  
63 63  (((
... ... @@ -64,56 +64,40 @@
64 64  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
65 65  )))
66 66  
67 -[[image:image-20220527092419-5.png]]
52 +[[image:https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="800" width="600"]]
68 68  
69 69  Connection1
70 70  
71 -
72 -(((
73 73  How to connect with Energy Meter：
74 -)))
75 75  
76 -(((
77 77  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.
78 -)))
79 79  
80 -(((
81 81  The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
82 -)))
83 83  
84 -(((
85 85  Power Source VIN to RS485-LN VIN+
86 -)))
87 87  
88 -(((
89 89  Power Source GND to RS485-LN VIN-
90 -)))
91 91  
92 -(((
93 93  Once there is power, the RS485-LN will be on.
94 -)))
95 95  
96 -[[image:image-20220527092514-6.png]]
68 +[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="450" width="600"]]
97 97  
98 98  Connection2
99 99  
72 +[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="800" width="600"]]
100 100  
101 -[[image:image-20220527092555-7.png]]
102 -
103 103  Connection3
104 104  
105 105  
106 106  === 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
107 107  
108 -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.
79 +If the user needs to read the parameters of the electric energy meter and use the modbus command,
109 109  
110 -[[image:image-20220527092629-8.png]]
81 +please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter.
111 111  
83 +[[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]]
112 112  
113 -(% class="box infomessage" %)
114 -(((
115 -**Example:** AT+COMMAND1=01 03 00 00 00 01 84 0A
116 -)))
85 +Example:AT+COMMAND1=01 03 00 00 00 01 84 0A
117 117  
118 118  * The first byte : slave address code (=001～247)
119 119  * The second byte : read register value function code
... ... @@ -121,14 +121,9 @@
121 121  * 5th and 6th bytes: Number of registers to read
122 122  * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6.
123 123  
124 -(((
125 125  How to parse the reading of the return command of the parameter：
126 -)))
127 127  
128 -(% class="box infomessage" %)
129 -(((
130 -**Example:** RETURN1：01 03 02 08 FD 7E 05
131 -)))
95 +Example:RETURN1：01 03 02 08 FD 7E 05
132 132  
133 133  * The first byte ARD: slave address code (=001～254)
134 134  * The second byte: Return to read function code
... ... @@ -137,34 +137,23 @@
137 137  * The 6th and 7th bytes: CRC16 checksum
138 138  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
139 139  
140 -(% class="wikigeneratedid" %)
141 -(((
142 -
143 -)))
144 144  
145 -=== **1.3.3 How to configure RS485-LN and parse output commands** ===
105 +=== 1.3.3 How to configure RS485-LN and parse output commands ===
146 146  
147 147  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
148 148  
109 +==== via AT COMMAND: ====
149 149  
150 -==== **1.3.3.1 via AT COMMAND:** ====
111 +First, we can use AT+CFGDEV to get the return value, and we can also judge whether the input parameters are correct.
151 151  
152 -First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct.
153 -
154 -(((
155 155  If the configured parameters and commands are incorrect, the return value is not obtained.
156 -)))
157 157  
158 -[[image:image-20220527092748-9.png]]
115 +[[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
159 159  
160 160  AT COMMAND
161 161  
119 +AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
162 162  
163 -(% class="box infomessage" %)
164 -(((
165 - AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
166 -)))
167 -
168 168  a: length for the return of AT+COMMAND
169 169  
170 170  b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
... ... @@ -171,273 +171,159 @@
171 171  
172 172  c: define the position for valid value.
173 173  
174 -[[image:image-20220527092936-10.png]]
127 +[[image:https://wiki.dragino.com/images/7/7d/AT_COMMAND2.png||height="278" width="477"]]
175 175  
176 176  AT COMMAND
177 177  
178 -
179 179  PAYLOAD is available after the valid value is intercepted.
180 180  
133 +[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]]
181 181  
182 -[[image:image-20220527093059-11.png]]
183 -
184 184  AT COMMAND
185 185  
186 -
187 187  You can get configured PAYLOAD on TTN.
188 188  
189 -[[image:image-20220527093133-12.png]]
139 +[[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
190 190  
191 -(((
192 192  AT COMMAND
193 -)))
194 194  
195 -(((
196 -
197 -)))
143 +Example: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
198 198  
199 -(((
200 -(% style="color:#4f81bd" %)**Example**:
201 -
202 -CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
203 -)))
204 -
205 -(((
206 206  RETURN1:01 03 02 00 02 39 85 00 00(return data)
207 -)))
208 208  
209 -(((
210 210  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.
211 211  
212 -
213 -)))
214 -
215 -(((
216 216  CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1
217 -)))
218 218  
219 -(((
220 220  RETURN2:01 03 02 08 DC BE 1D(return data)
221 -)))
222 222  
223 -(((
224 224  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.
225 225  
226 -
227 -)))
228 -
229 -(((
230 230  CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1
231 -)))
232 232  
233 -(((
234 234  RETURN3:01 03 04 00 00 00 44 FA 00(return data)
235 -)))
236 236  
237 -(((
238 238  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.
239 -)))
240 240  
241 -(((
242 242  Payload:01 00 02 39 85 08 DC 00 00 00 44
243 -)))
244 244  
245 -[[image:image-20220527093204-13.png]]
163 +[[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]
246 246  
247 247  AT COMMAND
248 248  
167 +01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.
249 249  
250 -(% 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.**
169 +[[~[~[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]]
251 251  
252 -[[image:image-20220527093251-14.png]]
253 -
254 254  AT COMMAND
255 255  
173 +==== 1.3.3.1 via LoRaWAN DOWNLINK ====
256 256  
257 -==== **1.3.3.2 via LoRaWAN DOWNLINK** ====
175 +[[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
258 258  
259 -[[image:image-20220527093358-15.png]]
260 -
261 -(((
262 262  DOWNLINK
263 -)))
264 264  
265 -(((
266 -
267 -)))
179 +Type Code 0xAF
268 268  
269 -(((
270 -(% style="color:#4f81bd" %)**Type Code 0xAF**
271 -)))
272 -
273 -(((
274 -(% class="box infomessage" %)
275 -(((
276 276  0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
277 -)))
278 -)))
279 279  
280 -(((
281 281  Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
282 -)))
283 283  
284 -(((
285 285  Format: AF MM NN LL XX XX XX XX YY
286 -)))
287 287  
288 -(((
289 289  Where:
290 -)))
291 291  
292 -(((
293 293  MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
294 -)))
295 295  
296 -(((
297 297  NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
298 -)))
299 299  
300 -(((
301 301  LL: The length of AT+COMMAND or AT+DATACUT command
302 -)))
303 303  
304 -(((
305 305  XX XX XX XX: AT+COMMAND or AT+DATACUT command
306 -)))
307 307  
308 -(((
309 309  YY: If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN
310 -)))
311 311  
312 -(((
313 313  will execute an uplink after got this command.
314 -)))
315 315  
316 -(((
317 -(% style="color:#4f81bd" %)**Example:**
318 -)))
201 +Example:
319 319  
320 -(((
321 -**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
322 -)))
203 +AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1
323 323  
324 -[[image:image-20220527093430-16.png]]
205 +[[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]]
325 325  
326 326  DOWNLINK
327 327  
209 +[[~[~[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]]
328 328  
329 -[[image:image-20220527093508-17.png]]
330 -
331 331  DOWNLINK
332 332  
213 +[[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]]
333 333  
334 -[[image:image-20220527093530-18.png]]
335 -
336 336  DOWNLINK
337 337  
217 +[[~[~[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]]
338 338  
339 -[[image:image-20220527093607-19.png]]
340 -
341 341  DOWNLINK
342 342  
221 +[[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]]
343 343  
344 -[[image:image-20220527093628-20.png]]
345 -
346 346  DOWNLINK
347 347  
348 348  
349 -=== **1.3.4 How to configure and output commands for RS485 to USB** ===
226 +=== 1.3.4 How to configure and output commands for RS485 to USB ===
350 350  
351 -(((
352 352  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.
353 -)))
354 354  
355 -(((
356 356  First, connect the A+ and A- of the USB to the 485 A and 485 B of the energy meter.
357 -)))
358 358  
359 -(((
360 360  Open the serial port debugging, set the send and receive to HEX.
361 -)))
362 362  
363 -(((
364 364  Baud rate: 9600
365 -)))
366 366  
367 -(((
368 368  check digit: Even
369 -)))
370 370  
371 -[[image:image-20220527093708-21.png]]
238 +[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]]
372 372  
373 373  USB
374 374  
242 +[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]]
375 375  
376 -[[image:image-20220527093747-22.png]]
377 -
378 378  USB
379 379  
380 -
381 -(((
382 382  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.
383 -)))
384 384  
385 -(((
386 -(% style="color:#4f81bd" %)**Example:**  (%%)input：01 03 00 31 00 02 95 c4
387 -)))
248 +Example:input：01 03 00 31 00 02 95 c4
388 388  
389 -(((
390 - output：01 03 04 00 00 00 42 7A 02
391 -)))
250 +{{{ output:01 03 04 00 00 00 42 7A 02
251 +}}}
392 392  
393 -[[image:image-20220527093821-23.png]]
253 +[[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
394 394  
395 395  USB
396 396  
257 +=== 1.3.5 How to configure multiple devices and modify device addresses ===
397 397  
398 -=== **1.3.5 How to configure multiple devices and modify device addresses** ===
399 -
400 400  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.
401 401  
402 -(((
403 -(((
404 404  Set the device address according to the parameters in the appendix of the MODBUS communication protocol.
405 -)))
406 -)))
407 407  
408 -[[image:image-20220527093849-24.png]]
263 +[[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]
409 409  
265 +Example:These two meters are examples of setting parameters and device addresses.
410 410  
411 -**Example**:These two meters are examples of setting parameters and device addresses.
267 +[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]]
412 412  
413 -[[image:image-20220527093950-25.png]]
269 +[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="800" width="600"]]
414 414  
415 -[[image:image-20220527094028-26.png]]
416 -
417 -(((
418 -(((
419 419  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.
420 -)))
421 -)))
422 422  
423 -(((
424 -(((
425 425  We can use AT+CFGDEV to set the device address.
426 -)))
427 -)))
428 428  
429 -(((
430 -(((
431 431  We modify the device address 01 of the first energy meter to 02.
432 -)))
433 -)))
434 434  
435 -[[image:image-20220527094100-27.png]]
277 +[[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]
436 436  
437 -(% class="box infomessage" %)
438 -(((
439 -**AT+CFGDEV:01 10 00 61 00 01 02 00 02,1**
440 -)))
279 +AT+CFGDEV:01 10 00 61 00 01 02 00 02,1
441 441  
442 442  * 01:device adaress
443 443  
... ... @@ -459,23 +459,21 @@
459 459  
460 460  Its default device address is 01, and the following are the parameters for configuring two energy meters.
461 461  
462 -[[image:image-20220527094150-28.png]]
301 +[[image:https://wiki.dragino.com/images/1/13/Meter11.png||alt="Meter11.png" height="576" width="379"]]
463 463  
303 +[[image:https://wiki.dragino.com/images/thumb/7/7e/Meter12.png/600px-Meter12.png||alt="Meter12.png" height="262" width="600"]]
464 464  
465 -[[image:image-20220527094224-29.png]]
305 +PAYLOAD:01 08 DF 43 62
466 466  
467 -**PAYLOAD:01 08 DF 43 62**
468 -
469 469  * 08 DF is the valid value of the meter with device address 02.
470 470  * 43 62 is the valid value of the meter with device address 01.
471 471  
472 472  
473 -
474 474  == 1.4 Example 4: Circuit Breaker Remote Open Close ==
475 475  
476 476  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:
477 477  
478 -[[image:image-20220527094330-30.png]]
315 +[[image:https://wiki.dragino.com/images/thumb/f/fa/RS485_04_2.png/600px-RS485_04_2.png||height="336" width="600"]]
479 479  
480 480  Connection
481 481  
... ... @@ -482,7 +482,6 @@
482 482  * [[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
483 483  
484 484  
485 -
486 486  == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
487 487  
488 488  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:
... ... @@ -491,6 +491,7 @@
491 491  
492 492  * [[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
493 493  
330 +
494 494  == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN ==
495 495  
496 496  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:
... ... @@ -497,9 +497,10 @@
497 497  
498 498  * [[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
499 499  
337 +
500 500  == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL ==
501 501  
502 -[[image:image-20220527094556-31.png]]
340 +[[image:https://wiki.dragino.com/images/thumb/9/97/PLC_M221.png/600px-PLC_M221.png||height="353" width="600"]]
503 503  
504 504  Network Structure
505 505  
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