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10	10
11	11	Connection
12	12
13		-
14	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
16	16	Connection
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29	29
30	30	Connection
31	31
32		-
33	33	[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]]
34	34
35	35	Connection
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53	53
54	54	Connection1
55	55
56		-(((
57	57	How to connect with Energy Meter：
58		-)))
59	59
60		-(((
61	61	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.
62		-)))
63	63
64		-(((
65	65	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
66		-)))
67	67
68		-(((
69	69	Power Source VIN to RS485-LN VIN+
70		-)))
71	71
72		-(((
73	73	Power Source GND to RS485-LN VIN-
74		-)))
75	75
76		-(((
77	77	Once there is power, the RS485-LN will be on.
78		-)))
79	79
80	80	[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="433" width="577"]]
81	81
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138	138
139	139	(% class="box infomessage" %)
140	140	(((
141		- AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
	127	+AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
142	142	)))
143	143
144	144	a: length for the return of AT+COMMAND
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372	372
373	373	[[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]
374	374
375		-**Example**:These two meters are examples of setting parameters and device addresses.
	361	+Example:These two meters are examples of setting parameters and device addresses.
376	376
377		-[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="737" width="553"]]
	363	+[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]]
378	378
379	379	[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="733" width="550"]]
380	380
381	381	(((
382		-(((
383	383	First of all, since the default device address of the energy meter is 01, the configuration of two energy meters will conflict, so we first connect an energy meter and configure the device address.
384	384	)))
385		-)))
386	386
387	387	(((
388		-(((
389	389	We can use AT+CFGDEV to set the device address.
390	390	)))
391		-)))
392	392
393	393	(((
394		-(((
395	395	We modify the device address 01 of the first energy meter to 02.
396	396	)))
397		-)))
398	398
399	399	[[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]
400	400

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1		-XWiki.Xiaoling

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