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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.
... ... @@ -6,14 +6,17 @@
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"]]
14 +[[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  
19 +
20 +[[image:image-20220527091942-2.png]](% style="display:none" %)
21 +
15 15  Connection
16 16  
24 +
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
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20 20  * [[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.
21 21  * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
22 22  
31 +
23 23  == 1.2 Example 2: Connect to Pulse Counter ==
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 +(% class="wikigeneratedid" %)
49 +== ==
50 +
38 38  == 1.3 Example3: Use RS485-LN with energy meters ==
39 39  
40 40  === 1.3.1 OverView ===
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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"]]
63 +[[image:image-20220527092419-5.png]]
51 51  
52 52  Connection1
53 53  
67 +
68 +(((
54 54  How to connect with Energy Meter：
70 +)))
55 55  
72 +(((
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.
74 +)))
57 57  
76 +(((
58 58  The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
78 +)))
59 59  
80 +(((
60 60  Power Source VIN to RS485-LN VIN+
82 +)))
61 61  
84 +(((
62 62  Power Source GND to RS485-LN VIN-
86 +)))
63 63  
88 +(((
64 64  Once there is power, the RS485-LN will be on.
90 +)))
65 65  
66 -[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="433" width="577"]]
92 +[[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="712" width="534"]]
72 72  
73 73  Connection3
74 74  
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124 124  
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
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
128 128  )))
129 129  
130 130  a: length for the return of AT+COMMAND
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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"]]
239 +[[image:image-20220512104358-3.png]]
215 215  
216 216  (((
217 217  DOWNLINK
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222 222  )))
223 223  
224 224  (((
225 -Type Code 0xAF
250 +**Type Code 0xAF**
226 226  )))
227 227  
228 228  (((
254 +(% class="box infomessage" %)
255 +(((
229 229  0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
230 230  )))
258 +)))
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.
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339 339  )))
340 340  
341 341  (((
342 - output:01 03 04 00 00 00 42 7A 02
370 + output：01 03 04 00 00 00 42 7A 02
343 343  )))
344 344  
345 345  [[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
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358 358  
359 359  [[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]
360 360  
361 -Example:These two meters are examples of setting parameters and device addresses.
389 +**Example**:These two meters are examples of setting parameters and device addresses.
362 362  
363 -[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]]
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"]]
364 364  
365 365  [[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="733" width="550"]]
366 366  
367 367  (((
396 +(((
368 368  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.
369 369  )))
399 +)))
370 370  
371 371  (((
402 +(((
372 372  We can use AT+CFGDEV to set the device address.
373 373  )))
405 +)))
374 374  
375 375  (((
408 +(((
376 376  We modify the device address 01 of the first energy meter to 02.
377 377  )))
411 +)))
378 378  
379 379  [[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]
380 380  
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