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To version < 1.14 >
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1 -(% class="wikigeneratedid" %)
2 - **Contents:**
3 -
4 -{{toc/}}
5 -
6 6  = 1. Introduction =
7 7  
8 8  This article provide the examples for RS485-LN to connect to different type of RS485 sensors.
... ... @@ -11,17 +11,14 @@
11 11  
12 12  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:
13 13  
14 -[[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"]]
15 15  
16 16  Connection
17 17  
13 +[[image:https://wiki.dragino.com/images/thumb/f/f2/RS485_02.png/600px-RS485_02.png||height="743" width="528"]](% style="display:none" %)
18 18  
19 -
20 -[[image:image-20220527091942-2.png]](% style="display:none" %)
21 -
22 22  Connection
23 23  
24 -
25 25  Related documents:
26 26  
27 27  * [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure
... ... @@ -28,26 +28,21 @@
28 28  * [[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.
29 29  * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
30 30  
31 -
32 32  == 1.2 Example 2: Connect to Pulse Counter ==
33 33  
34 34  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 35  
36 -[[image:image-20220527092058-3.png]]
27 +[[image:https://wiki.dragino.com/images/thumb/3/34/RS485_02_1.png/600px-RS485_02_1.png||height="364" width="600"]]
37 37  
38 38  Connection
39 39  
31 +[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]]
40 40  
41 -[[image:image-20220527092146-4.png]]
42 -
43 43  Connection
44 44  
45 45  * [[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
46 46  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
47 47  
48 -(% class="wikigeneratedid" %)
49 -== ==
50 -
51 51  == 1.3 Example3: Use RS485-LN with energy meters ==
52 52  
53 53  === 1.3.1 OverView ===
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60 60  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
61 61  )))
62 62  
63 -[[image:image-20220527092419-5.png]]
50 +[[image:https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="726" width="545"]]
64 64  
65 65  Connection1
66 66  
67 -
68 -(((
69 69  How to connect with Energy Meter：
70 -)))
71 71  
72 -(((
73 73  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.
74 -)))
75 75  
76 -(((
77 77  The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
78 -)))
79 79  
80 -(((
81 81  Power Source VIN to RS485-LN VIN+
82 -)))
83 83  
84 -(((
85 85  Power Source GND to RS485-LN VIN-
86 -)))
87 87  
88 -(((
89 89  Once there is power, the RS485-LN will be on.
90 -)))
91 91  
92 -[[image:image-20220527092514-6.png]]
66 +[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="433" width="577"]]
93 93  
94 94  Connection2
95 95  
96 96  
71 +[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="763" width="573"]]
97 97  
98 98  Connection3
99 99  
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149 149  
150 150  (% class="box infomessage" %)
151 151  (((
152 - AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
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
153 153  )))
154 154  
155 155  a: length for the return of AT+COMMAND
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236 236  
237 237  ==== 1.3.3.2 via LoRaWAN DOWNLINK ====
238 238  
239 -[[image:image-20220512104358-3.png]]
214 +[[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
240 240  
241 241  (((
242 242  DOWNLINK
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247 247  )))
248 248  
249 249  (((
250 -**Type Code 0xAF**
225 +Type Code 0xAF
251 251  )))
252 252  
253 253  (((
254 -(% class="box infomessage" %)
255 -(((
256 256  0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
257 257  )))
258 -)))
259 259  
260 260  (((
261 261  Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
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320 320  
321 321  DOWNLINK
322 322  
323 -
324 324  [[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]]
325 325  
326 326  DOWNLINK
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348 348  check digit: Even
349 349  )))
350 350  
351 -[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="725" width="544"]]
322 +[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]]
352 352  
353 353  USB
354 354  
355 355  
356 -[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="728" width="546"]]
327 +[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]]
357 357  
358 358  USB
359 359  
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367 367  )))
368 368  
369 369  (((
370 - output：01 03 04 00 00 00 42 7A 02
341 + output:01 03 04 00 00 00 42 7A 02
371 371  )))
372 372  
373 373  [[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
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379 379  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.
380 380  
381 381  (((
382 -(((
383 383  Set the device address according to the parameters in the appendix of the MODBUS communication protocol.
384 384  )))
385 -)))
386 386  
387 387  [[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]
388 388  
389 -**Example**:These two meters are examples of setting parameters and device addresses.
358 +Example:These two meters are examples of setting parameters and device addresses.
390 390  
391 -[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="737" width="553"]]
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"]]
392 392  
393 393  [[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="733" width="550"]]
394 394  
395 395  (((
396 -(((
397 397  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.
398 398  )))
399 -)))
400 400  
401 401  (((
402 -(((
403 403  We can use AT+CFGDEV to set the device address.
404 404  )))
405 -)))
406 406  
407 407  (((
408 -(((
409 409  We modify the device address 01 of the first energy meter to 02.
410 410  )))
411 -)))
412 412  
413 413  [[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]
414 414  
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