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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 +11,15 @@
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
18	18
	14	+[[image:https://wiki.dragino.com/images/thumb/f/f2/RS485_02.png/600px-RS485_02.png||height="743" width="528"]](% style="display:none" %)
19	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
...	...	@@ -28,17 +28,16 @@
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]]
	28	+[[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
40	40
41		-[[image:image-20220527092146-4.png]]
	33	+[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]]
42	42
43	43	Connection
44	44
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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]]
	52	+[[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]]
	68	+[[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
	73	+[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="712" width="534"]]
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
	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
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]]
	216	+[[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**
	227	+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.
...	...	@@ -367,7 +367,7 @@
367	367	)))
368	368
369	369	(((
370		- output：01 03 04 00 00 00 42 7A 02
	344	+ 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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