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3	3
4	4	{{toc/}}
5	5
6		-= 1. Introduction =
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	10	+
	11	+= **1. Introduction** =
	12	+
8	8	This article provide the examples for RS485-LN to connect to different type of RS485 sensors.
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10	10
11		-== 1.1 Example 1: Connect to Leak relay and VFD ==
	16	+== **1.1 Example 1: Connect to Leak relay and VFD** ==
12	12
13	13	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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30	30	* [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]]
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32	32
33		-== 1.2 Example 2: Connect to Pulse Counter ==
34	34
	39	+== **1.2 Example 2: Connect to Pulse Counter** ==
	40	+
35	35	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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37	37	[[image:image-20220527092058-3.png]]
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48	48
49	49	== ==
50	50
51		-== 1.3 Example3: Use RS485-LN with energy meters ==
	57	+== **1.3 Example3: Use RS485-LN with energy meters** ==
52	52
53		-=== 1.3.1 OverView ===
	59	+=== **1.3.1 OverView** ===
54	54
55	55	(((
56	56	**Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
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99	99	Connection3
100	100
101	101
102		-=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
	108	+=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** ===
103	103
104	104	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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138	138
139	139	)))
140	140
141		-=== 1.3.3 How to configure RS485-LN and parse output commands ===
	147	+=== **1.3.3 How to configure RS485-LN and parse output commands** ===
142	142
143	143	RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
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145	145
146		-==== 1.3.3.1 via AT COMMAND: ====
	152	+==== **1.3.3.1 via AT COMMAND:** ====
147	147
148	148	First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct.
149	149
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250	250	AT COMMAND
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252	252
253		-==== 1.3.3.2 via LoRaWAN DOWNLINK ====
	259	+==== **1.3.3.2 via LoRaWAN DOWNLINK** ====
254	254
255	255	[[image:image-20220527093358-15.png]]
256	256
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342	342	DOWNLINK
343	343
344	344
345		-=== 1.3.4 How to configure and output commands for RS485 to USB ===
	351	+=== **1.3.4 How to configure and output commands for RS485 to USB** ===
346	346
347	347	(((
348	348	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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391	391	USB
392	392
393	393
394		-=== 1.3.5 How to configure multiple devices and modify device addresses ===
	400	+=== **1.3.5 How to configure multiple devices and modify device addresses** ===
395	395
396	396	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.
397	397