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4	4	{{toc/}}
5	5
	6	+= 1. Introduction =
6	6
7		-
8		-
9		-
10		-
11		-= **1. Introduction** =
12		-
13	13	This article provide the examples for RS485-LN to connect to different type of RS485 sensors.
14	14
15	15
16		-== **1.1 Example 1: Connect to Leak relay and VFD** ==
	11	+== 1.1 Example 1: Connect to Leak relay and VFD ==
17	17
18	18	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:
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34	34	* [[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.
35	35	* [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
36	36
	32	+== 1.2 Example 2: Connect to Pulse Counter ==
37	37
38		-
39		-== **1.2 Example 2: Connect to Pulse Counter** ==
40		-
41	41	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:
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43	43	[[image:image-20220527092058-3.png]]
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54	54
55	55	== ==
56	56
57		-== **1.3 Example3: Use RS485-LN with energy meters** ==
	50	+== 1.3 Example3: Use RS485-LN with energy meters ==
58	58
59		-=== **1.3.1 OverView** ===
	52	+=== 1.3.1 OverView ===
60	60
61	61	(((
62	62	**Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
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105	105	Connection3
106	106
107	107
108		-=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
	101	+=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
109	109
110	110	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.
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144	144
145	145	)))
146	146
147		-=== **1.3.3 How to configure RS485-LN and parse output commands** ===
	140	+=== 1.3.3 How to configure RS485-LN and parse output commands ===
148	148
149	149	RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
150	150
151	151
152		-==== **1.3.3.1 via AT COMMAND:** ====
	145	+==== 1.3.3.1 via AT COMMAND: ====
153	153
154	154	First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct.
155	155
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256	256	AT COMMAND
257	257
258	258
259		-==== **1.3.3.2 via LoRaWAN DOWNLINK** ====
	252	+==== 1.3.3.2 via LoRaWAN DOWNLINK ====
260	260
261	261	[[image:image-20220527093358-15.png]]
262	262
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348	348	DOWNLINK
349	349
350	350
351		-=== **1.3.4 How to configure and output commands for RS485 to USB** ===
	344	+=== 1.3.4 How to configure and output commands for RS485 to USB ===
352	352
353	353	(((
354	354	This step is not necessary, it is just to show how to use a normal RS485 to USB adapter to connect to the meter to check the input and output. This can be used to test the connection and RS485 command of the meter without RS485-LN.
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397	397	USB
398	398
399	399
400		-=== **1.3.5 How to configure multiple devices and modify device addresses** ===
	393	+=== 1.3.5 How to configure multiple devices and modify device addresses ===
401	401
402	402	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.
403	403