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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="334" width="600"]]
	9	+[[image:https://wiki.dragino.com/images/thumb/5/5c/RS485_01.png/600px-RS485_01.png||height="297" width="534"]]
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="844" width="600"]]
	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
15	15	Connection
16	16
...	...	@@ -41,9 +41,13 @@
41	41
42	42	=== 1.3.1 OverView ===
43	43
44		-Note：The specifications of each energy meter are different, please refer to your own energy meter specifications.
	44	+(((
	45	+**Note**：The specifications of each energy meter are different, please refer to your own energy meter specifications.
	46	+)))
45	45
	48	+(((
46	46	This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
	50	+)))
47	47
48	48	[[image:https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="800" width="600"]]
49	49
...	...	@@ -72,13 +72,14 @@
72	72
73	73	=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands ===
74	74
75		-If the user needs to read the parameters of the electric energy meter and use the modbus command,
	79	+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.
76	76
77		-please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter.
78		-
79	79	[[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]]
80	80
	83	+(% class="box infomessage" %)
	84	+(((
81	81	Example:AT+COMMAND1=01 03 00 00 00 01 84 0A
	86	+)))
82	82
83	83	* The first byte : slave address code (=001～247)
84	84	* The second byte : read register value function code
...	...	@@ -88,7 +88,10 @@
88	88
89	89	How to parse the reading of the return command of the parameter：
90	90
	96	+(% class="box infomessage" %)
	97	+(((
91	91	Example:RETURN1：01 03 02 08 FD 7E 05
	99	+)))
92	92
93	93	* The first byte ARD: slave address code (=001～254)
94	94	* The second byte: Return to read function code
...	...	@@ -102,17 +102,22 @@
102	102
103	103	RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
104	104
105		-==== via AT COMMAND: ====
	113	+==== 1.3.3.1 via AT COMMAND: ====
106	106
107		-First, we can use AT+CFGDEV to get the return value, and we can also judge whether the input parameters are correct.
	115	+First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct.
108	108
	117	+(((
109	109	If the configured parameters and commands are incorrect, the return value is not obtained.
	119	+)))
110	110
111	111	[[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
112	112
113		-AT COMMAND
	123	+**AT COMMAND**
114	114
	125	+(% class="box infomessage" %)
	126	+(((
115	115	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	+)))
116	116
117	117	a: length for the return of AT+COMMAND
118	118
...	...	@@ -126,6 +126,7 @@
126	126
127	127	PAYLOAD is available after the valid value is intercepted.
128	128
	142	+
129	129	[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]]
130	130
131	131	AT COMMAND
...	...	@@ -132,11 +132,12 @@
132	132
133	133	You can get configured PAYLOAD on TTN.
134	134
	149	+
135	135	[[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
136	136
137	137	AT COMMAND
138	138
139		-Example: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
	154	+**Example**: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1
140	140
141	141	RETURN1:01 03 02 00 02 39 85 00 00(return data)
142	142
...	...	@@ -162,12 +162,14 @@
162	162
163	163	01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.
164	164
	180	+
165	165	[[~[~[image:https://wiki.dragino.com/images/thumb/b/b8/AT_COMMAND11.png/600px-AT_COMMAND11.png~|~|height="271" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:AT_COMMAND11.png]]
166	166
167	167	AT COMMAND
168	168
169		-==== 1.3.3.1 via LoRaWAN DOWNLINK ====
170	170
	186	+==== 1.3.3.2 via LoRaWAN DOWNLINK ====
	187	+
171	171	[[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
172	172
173	173	DOWNLINK
...	...	@@ -202,14 +202,17 @@
202	202
203	203	DOWNLINK
204	204
	222	+
205	205	[[~[~[image:https://wiki.dragino.com/images/thumb/2/20/DOWNLINK_METER3.png/600px-DOWNLINK_METER3.png~|~|height="105" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER3.png]]
206	206
207	207	DOWNLINK
208	208
	227	+
209	209	[[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]]
210	210
211	211	DOWNLINK
212	212
	232	+
213	213	[[~[~[image:https://wiki.dragino.com/images/thumb/3/39/DOWNLINK_METER5.png/600px-DOWNLINK_METER5.png~|~|height="176" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER5.png]]
214	214
215	215	DOWNLINK