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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
	44	+
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:
42	42
	47	+
43	43	[[image:image-20220527092058-3.png]]
44	44
45	45	Connection
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51	51	Connection
52	52
53	53
54		-* [[Pickdata MIO40 water pulse counter to LoRa with Dragino RS485-LN>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Pulse-Counter/]] : Configure Document
	59	+* Configure Document: [[Pickdata MIO40 water pulse counter to LoRa with Dragino RS485-LN>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Pulse-Counter/]]
55	55	* [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
56	56
57		-== ==
58	58
	63	+
	64	+
59	59	== **1.3 Example3: Use RS485-LN with energy meters** ==
60	60
61	61	=== **1.3.1 OverView** ===
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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]]
	122	+[[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]]
	170	+[[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]]
	186	+[[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]]
	195	+[[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]]
	203	+[[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]]
	259	+[[image:image-20220601142936-6.png]]
254	254
255	255	AT COMMAND
256	256
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257	257
258	258	(% style="color:#4f81bd" %)**01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.**
259	259
260		-[[image:image-20220527093251-14.png]]
261	261
	267	+
	268	+[[image:image-20220601143642-2.png]]
	269	+
262	262	AT COMMAND
263	263
264	264
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322	322	)))
323	323
324	324	(((
	333	+
	334	+
325	325	(% style="color:#4f81bd" %)**Example:**
326	326	)))
327	327
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329	329	**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
330	330	)))
331	331
332		-[[image:image-20220527093430-16.png]]
	342	+[[image:image-20220601144149-6.png]]
333	333
334	334	DOWNLINK
335	335
336	336
337		-[[image:image-20220527093508-17.png]]
338	338
	348	+[[image:image-20220601143803-3.png]]
	349	+
339	339	DOWNLINK
340	340
341	341
342		-[[image:image-20220527093530-18.png]]
343	343
	354	+[[image:image-20220601144053-5.png]]
	355	+
344	344	DOWNLINK
345	345
346	346
347		-[[image:image-20220527093607-19.png]]
348	348
	360	+[[image:image-20220601143921-4.png]]
	361	+
349	349	DOWNLINK
350	350
351	351
352		-[[image:image-20220527093628-20.png]]
353	353
	366	+[[image:image-20220601142805-5.png]]
	367	+
354	354	DOWNLINK
355	355
356	356
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381	381	USB
382	382
383	383
	398	+
384	384	[[image:image-20220527093747-22.png]]
385	385
386	386	USB
387	387
388	388
	404	+
389	389	(((
390	390	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.
391	391	)))
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413	413	)))
414	414	)))
415	415
416		-[[image:image-20220527093849-24.png]]
	432	+[[image:image-20220601142044-1.png]]
417	417
418	418
419	419	**Example**:These two meters are examples of setting parameters and device addresses.
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420	420
421	421	[[image:image-20220527093950-25.png]]
422	422
	439	+
423	423	[[image:image-20220527094028-26.png]]
424	424
425	425	(((
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440	440	)))
441	441	)))
442	442
443		-[[image:image-20220527094100-27.png]]
	460	+[[image:image-20220601142354-2.png]]
444	444
445	445	(% class="box infomessage" %)
446	446	(((
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467	467
468	468	Its default device address is 01, and the following are the parameters for configuring two energy meters.
469	469
470		-[[image:image-20220527094150-28.png]]
	487	+[[image:image-20220601142452-3.png]]
471	471
472	472
473		-[[image:image-20220527094224-29.png]]
	490	+[[image:image-20220601142607-4.png]]
474	474
475	475	**PAYLOAD:01 08 DF 43 62**
476	476
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488	488
489	489	* [[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
490	490
491		-
492	492	== 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN ==
493	493
494	494	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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