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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.
... ... @@ -6,15 +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 13  
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  
20 +[[image:image-20220527091942-2.png]](% style="display:none" %)
21 +
16 16  Connection
17 17  
24 +
18 18  Related documents:
19 19  
20 20  * [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure
... ... @@ -21,16 +21,17 @@
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  
31 +
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:
27 27  
28 -[[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]]
29 29  
30 30  Connection
31 31  
32 32  
33 -[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]]
41 +[[image:image-20220527092146-4.png]]
34 34  
35 35  Connection
36 36  
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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  
48 +(% class="wikigeneratedid" %)
49 +== ==
50 +
40 40  == 1.3 Example3: Use RS485-LN with energy meters ==
41 41  
42 42  === 1.3.1 OverView ===
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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"]]
63 +[[image:image-20220527092419-5.png]]
53 53  
54 54  Connection1
55 55  
67 +
68 +(((
56 56  How to connect with Energy Meter：
70 +)))
57 57  
72 +(((
58 58  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 +)))
59 59  
76 +(((
60 60  The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
78 +)))
61 61  
80 +(((
62 62  Power Source VIN to RS485-LN VIN+
82 +)))
63 63  
84 +(((
64 64  Power Source GND to RS485-LN VIN-
86 +)))
65 65  
88 +(((
66 66  Once there is power, the RS485-LN will be on.
90 +)))
67 67  
68 -[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="433" width="577"]]
92 +[[image:image-20220527092514-6.png]]
69 69  
70 70  Connection2
71 71  
72 72  
73 -[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="712" width="534"]]
74 74  
75 75  Connection3
76 76  
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126 126  
127 127  (% class="box infomessage" %)
128 128  (((
129 -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
130 130  )))
131 131  
132 132  a: length for the return of AT+COMMAND
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213 213  
214 214  ==== 1.3.3.2 via LoRaWAN DOWNLINK ====
215 215  
216 -[[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]]
217 217  
218 218  (((
219 219  DOWNLINK
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224 224  )))
225 225  
226 226  (((
227 -Type Code 0xAF
250 +**Type Code 0xAF**
228 228  )))
229 229  
230 230  (((
254 +(% class="box infomessage" %)
255 +(((
231 231  0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
232 232  )))
258 +)))
233 233  
234 234  (((
235 235  Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
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341 341  )))
342 342  
343 343  (((
344 - output:01 03 04 00 00 00 42 7A 02
370 + output：01 03 04 00 00 00 42 7A 02
345 345  )))
346 346  
347 347  [[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
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