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1	1	(% class="wikigeneratedid" %)
2		- **Contents:**
	2	+ ** Table of** **Contents:**
3	3
4	4	{{toc/}}
5	5
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10	10
11	11	= **1. Introduction** =
12	12
	13	+
13	13	This article provide the examples for RS485-LN to connect to different type of RS485 sensors.
14	14
15	15
16	16	== **1.1 Example 1: Connect to Leak relay and VFD** ==
17	17
	19	+
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:
19	19
20	20	[[image:image-20220527091852-1.png]]
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36	36
37	37
38	38
	41	+
39	39	== **1.2 Example 2: Connect to Pulse Counter** ==
40	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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113	113
114	114	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.
115	115
116		-[[image:image-20220527092629-8.png]]
	119	+[[image:image-20220601143257-10.png]]
117	117
118	118
119	119	(% class="box infomessage" %)
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161	161	If the configured parameters and commands are incorrect, the return value is not obtained.
162	162	)))
163	163
164		-[[image:image-20220527092748-9.png]]
	167	+[[image:image-20220601143201-9.png]]
165	165
166	166	AT COMMAND
167	167
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177	177
178	178	c:  define the position for valid value.
179	179
180		-[[image:image-20220527092936-10.png]]
	183	+[[image:image-20220601143115-8.png]]
181	181
182	182	AT COMMAND
183	183
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186	186	PAYLOAD is available after the valid value is intercepted.
187	187
188	188
189		-[[image:image-20220527093059-11.png]]
	192	+[[image:image-20220601143046-7.png]]
190	190
191	191	AT COMMAND
192	192
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194	194
195	195	You can get configured PAYLOAD on TTN.
196	196
197		-[[image:image-20220527093133-12.png]]
	200	+[[image:image-20220601143519-1.png]]
198	198
199	199	(((
200	200	AT COMMAND
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250	250	Payload:01 00 02 39 85 08 DC 00 00 00 44
251	251	)))
252	252
253		-[[image:image-20220527093204-13.png]]
	256	+[[image:image-20220601142936-6.png]]
254	254
255	255	AT COMMAND
256	256
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259	259
260	260
261	261
262		-[[image:image-20220527093251-14.png]]
	265	+[[image:image-20220601143642-2.png]]
263	263
264	264	AT COMMAND
265	265
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324	324	)))
325	325
326	326	(((
	330	+
	331	+
327	327	(% style="color:#4f81bd" %)**Example:**
328	328	)))
329	329
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331	331	**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
332	332	)))
333	333
334		-[[image:image-20220527093430-16.png]]
	339	+[[image:image-20220601144149-6.png]]
335	335
336	336	DOWNLINK
337	337
338	338
339		-[[image:image-20220527093508-17.png]]
340	340
	345	+[[image:image-20220601143803-3.png]]
	346	+
341	341	DOWNLINK
342	342
343	343
344		-[[image:image-20220527093530-18.png]]
345	345
	351	+[[image:image-20220601144053-5.png]]
	352	+
346	346	DOWNLINK
347	347
348	348
349		-[[image:image-20220527093607-19.png]]
350	350
	357	+[[image:image-20220601143921-4.png]]
	358	+
351	351	DOWNLINK
352	352
353	353
354		-[[image:image-20220527093628-20.png]]
355	355
	363	+[[image:image-20220601142805-5.png]]
	364	+
356	356	DOWNLINK
357	357
358	358
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383	383	USB
384	384
385	385
	395	+
386	386	[[image:image-20220527093747-22.png]]
387	387
388	388	USB
389	389
390	390
	401	+
391	391	(((
392	392	The configuration command is consistent with the AT command, input the hexadecimal command directly into the serial port, and the serial port will output the command.
393	393	)))
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415	415	)))
416	416	)))
417	417
418		-[[image:image-20220527093849-24.png]]
	429	+[[image:image-20220601142044-1.png]]
419	419
420	420
421	421	**Example**:These two meters are examples of setting parameters and device addresses.
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422	422
423	423	[[image:image-20220527093950-25.png]]
424	424
	436	+
425	425	[[image:image-20220527094028-26.png]]
426	426
427	427	(((
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442	442	)))
443	443	)))
444	444
445		-[[image:image-20220527094100-27.png]]
	457	+[[image:image-20220601142354-2.png]]
446	446
447	447	(% class="box infomessage" %)
448	448	(((
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469	469
470	470	Its default device address is 01, and the following are the parameters for configuring two energy meters.
471	471
472		-[[image:image-20220527094150-28.png]]
	484	+[[image:image-20220601142452-3.png]]
473	473
474	474
475		-[[image:image-20220527094224-29.png]]
	487	+[[image:image-20220601142607-4.png]]
476	476
477	477	**PAYLOAD:01 08 DF 43 62**
478	478
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490	490
491	491	* [[Circuit Breaker Remote Open Close>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Circuit_Breaker_Remote_Open_Close/]] : Configure Documen
492	492
493		-
494	494	== 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
495	495
496	496	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-BL to connect to SEM Three Energy Meter and send the data to mobile phone for remote minitor. The structure is like below:

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