Last modified by Karry Zhuang on 2024/07/11 11:58
<
From version < 1.14 >
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on 2022/05/12 10:16
To version < 38.2 >
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Summary

Details

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1 +(% class="wikigeneratedid" %)
2 + **Contents:**
3 +
4 +{{toc/}}
5 +
1 1  = 1. Introduction =
2 2  
3 3  This article provide the examples for RS485-LN to connect to different type of RS485 sensors.
4 4  
10 +
5 5  == 1.1 Example 1: Connect to Leak relay and VFD ==
6 6  
7 7  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:
8 8  
9 -[[image:https://wiki.dragino.com/images/thumb/5/5c/RS485_01.png/600px-RS485_01.png||height="297" width="534"]]
15 +[[image:image-20220527091852-1.png]]
10 10  
11 11  Connection
12 12  
13 -[[image:https://wiki.dragino.com/images/thumb/f/f2/RS485_02.png/600px-RS485_02.png||height="743" width="528"]](% style="display:none" %)
14 14  
20 +
21 +[[image:image-20220527091942-2.png]](% style="display:none" %)
22 +
15 15  Connection
16 16  
25 +
17 17  Related documents:
18 18  
19 19  * [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure
... ... @@ -24,17 +24,20 @@
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:
26 26  
27 -[[image:https://wiki.dragino.com/images/thumb/3/34/RS485_02_1.png/600px-RS485_02_1.png||height="364" width="600"]]
36 +[[image:image-20220527092058-3.png]]
28 28  
29 29  Connection
30 30  
31 -[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]]
32 32  
41 +[[image:image-20220527092146-4.png]]
42 +
33 33  Connection
34 34  
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  
48 +== ==
49 +
38 38  == 1.3 Example3: Use RS485-LN with energy meters ==
39 39  
40 40  === 1.3.1 OverView ===
... ... @@ -47,28 +47,41 @@
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"]]
62 +[[image:image-20220527092419-5.png]]
51 51  
52 52  Connection1
53 53  
66 +
67 +(((
54 54  How to connect with Energy Meter：
69 +)))
55 55  
71 +(((
56 56  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.
73 +)))
57 57  
75 +(((
58 58  The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
77 +)))
59 59  
79 +(((
60 60  Power Source VIN to RS485-LN VIN+
81 +)))
61 61  
83 +(((
62 62  Power Source GND to RS485-LN VIN-
85 +)))
63 63  
87 +(((
64 64  Once there is power, the RS485-LN will be on.
89 +)))
65 65  
66 -[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="433" width="577"]]
91 +[[image:image-20220527092514-6.png]]
67 67  
68 68  Connection2
69 69  
70 70  
71 -[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="763" width="573"]]
96 +[[image:image-20220527092555-7.png]]
72 72  
73 73  Connection3
74 74  
... ... @@ -77,11 +77,12 @@
77 77  
78 78  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 79  
80 -[[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]]
105 +[[image:image-20220527092629-8.png]]
81 81  
107 +
82 82  (% class="box infomessage" %)
83 83  (((
84 -Example:AT+COMMAND1=01 03 00 00 00 01 84 0A
110 +**Example:** AT+COMMAND1=01 03 00 00 00 01 84 0A
85 85  )))
86 86  
87 87  * The first byte : slave address code (=001～247)
... ... @@ -96,7 +96,7 @@
96 96  
97 97  (% class="box infomessage" %)
98 98  (((
99 -Example:RETURN1：01 03 02 08 FD 7E 05
125 +**Example:** RETURN1：01 03 02 08 FD 7E 05
100 100  )))
101 101  
102 102  * The first byte ARD: slave address code (=001～254)
... ... @@ -106,10 +106,16 @@
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  
135 +(% class="wikigeneratedid" %)
136 +(((
137 +
138 +)))
139 +
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.
112 112  
144 +
113 113  ==== 1.3.3.1 via AT COMMAND: ====
114 114  
115 115  First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct.
... ... @@ -118,13 +118,14 @@
118 118  If the configured parameters and commands are incorrect, the return value is not obtained.
119 119  )))
120 120  
121 -[[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
153 +[[image:image-20220527092748-9.png]]
122 122  
123 123  AT COMMAND
124 124  
157 +
125 125  (% class="box infomessage" %)
126 126  (((
127 -AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
160 + AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
128 128  )))
129 129  
130 130  a: length for the return of AT+COMMAND
... ... @@ -133,22 +133,23 @@
133 133  
134 134  c: define the position for valid value.
135 135  
136 -[[image:https://wiki.dragino.com/images/7/7d/AT_COMMAND2.png||height="278" width="477"]]
169 +[[image:image-20220527092936-10.png]]
137 137  
138 138  AT COMMAND
139 139  
173 +
140 140  PAYLOAD is available after the valid value is intercepted.
141 141  
142 142  
143 -[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]]
177 +[[image:image-20220527093059-11.png]]
144 144  
145 145  AT COMMAND
146 146  
181 +
147 147  You can get configured PAYLOAD on TTN.
148 148  
184 +[[image:image-20220527093133-12.png]]
149 149  
150 -[[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
151 -
152 152  (((
153 153  AT COMMAND
154 154  )))
... ... @@ -197,14 +197,14 @@
197 197  Payload:01 00 02 39 85 08 DC 00 00 00 44
198 198  )))
199 199  
200 -[[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]
234 +[[image:image-20220527093204-13.png]]
201 201  
202 202  AT COMMAND
203 203  
204 -01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.
205 205  
239 +(% 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.**
206 206  
207 -[[~[~[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]]
241 +[[image:image-20220527093251-14.png]]
208 208  
209 209  AT COMMAND
210 210  
... ... @@ -211,7 +211,7 @@
211 211  
212 212  ==== 1.3.3.2 via LoRaWAN DOWNLINK ====
213 213  
214 -[[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
248 +[[image:image-20220527093358-15.png]]
215 215  
216 216  (((
217 217  DOWNLINK
... ... @@ -222,12 +222,15 @@
222 222  )))
223 223  
224 224  (((
225 -Type Code 0xAF
259 +**Type Code 0xAF**
226 226  )))
227 227  
228 228  (((
263 +(% class="box infomessage" %)
264 +(((
229 229  0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
230 230  )))
267 +)))
231 231  
232 232  (((
233 233  Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
... ... @@ -273,27 +273,28 @@
273 273  AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1
274 274  )))
275 275  
276 -[[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]]
313 +[[image:image-20220527093430-16.png]]
277 277  
278 278  DOWNLINK
279 279  
280 280  
281 -[[~[~[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]]
318 +[[image:image-20220527093508-17.png]]
282 282  
283 283  DOWNLINK
284 284  
285 285  
286 -[[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]]
323 +[[image:image-20220527093530-18.png]]
287 287  
288 288  DOWNLINK
289 289  
290 290  
291 -[[~[~[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]]
328 +[[image:image-20220527093607-19.png]]
292 292  
293 293  DOWNLINK
294 294  
295 -[[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]]
296 296  
333 +[[image:image-20220527093628-20.png]]
334 +
297 297  DOWNLINK
298 298  
299 299  
... ... @@ -319,12 +319,12 @@
319 319  check digit: Even
320 320  )))
321 321  
322 -[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]]
360 +[[image:image-20220527093708-21.png]]
323 323  
324 324  USB
325 325  
326 326  
327 -[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]]
365 +[[image:image-20220527093747-22.png]]
328 328  
329 329  USB
330 330  
... ... @@ -338,44 +338,57 @@
338 338  )))
339 339  
340 340  (((
341 - output:01 03 04 00 00 00 42 7A 02
379 + output：01 03 04 00 00 00 42 7A 02
342 342  )))
343 343  
344 -[[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
382 +[[image:image-20220527093821-23.png]]
345 345  
346 346  USB
347 347  
386 +
348 348  === 1.3.5 How to configure multiple devices and modify device addresses ===
349 349  
350 350  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.
351 351  
352 352  (((
392 +(((
353 353  Set the device address according to the parameters in the appendix of the MODBUS communication protocol.
354 354  )))
395 +)))
355 355  
356 -[[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]
397 +[[image:image-20220527093849-24.png]]
357 357  
358 -Example:These two meters are examples of setting parameters and device addresses.
359 359  
360 -[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]]
400 +**Example**:These two meters are examples of setting parameters and device addresses.
361 361  
362 -[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="733" width="550"]]
402 +[[image:image-20220527093950-25.png]]
363 363  
404 +[[image:image-20220527094028-26.png]]
405 +
364 364  (((
407 +(((
365 365  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.
366 366  )))
410 +)))
367 367  
368 368  (((
413 +(((
369 369  We can use AT+CFGDEV to set the device address.
370 370  )))
416 +)))
371 371  
372 372  (((
419 +(((
373 373  We modify the device address 01 of the first energy meter to 02.
374 374  )))
422 +)))
375 375  
376 -[[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]
424 +[[image:image-20220527094100-27.png]]
377 377  
378 -AT+CFGDEV:01 10 00 61 00 01 02 00 02,1
426 +(% class="box infomessage" %)
427 +(((
428 +**AT+CFGDEV:01 10 00 61 00 01 02 00 02,1**
429 +)))
379 379  
380 380  * 01:device adaress
381 381  
... ... @@ -397,10 +397,11 @@
397 397  
398 398  Its default device address is 01, and the following are the parameters for configuring two energy meters.
399 399  
400 -[[image:https://wiki.dragino.com/images/1/13/Meter11.png||alt="Meter11.png" height="576" width="379"]]
451 +[[image:image-20220527094150-28.png]]
401 401  
402 -[[image:https://wiki.dragino.com/images/thumb/7/7e/Meter12.png/600px-Meter12.png||alt="Meter12.png" height="262" width="600"]]
403 403  
454 +[[image:image-20220527094224-29.png]]
455 +
404 404  PAYLOAD:01 08 DF 43 62
405 405  
406 406  * 08 DF is the valid value of the meter with device address 02.
... ... @@ -410,7 +410,7 @@
410 410  
411 411  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:
412 412  
413 -[[image:https://wiki.dragino.com/images/thumb/f/fa/RS485_04_2.png/600px-RS485_04_2.png||height="336" width="600"]]
465 +[[image:image-20220527094330-30.png]]
414 414  
415 415  Connection
416 416  
... ... @@ -432,7 +432,7 @@
432 432  
433 433  == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL ==
434 434  
435 -[[image:https://wiki.dragino.com/images/thumb/9/97/PLC_M221.png/600px-PLC_M221.png||height="353" width="600"]]
487 +[[image:image-20220527094556-31.png]]
436 436  
437 437  Network Structure
438 438  
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