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	1	+(% class="wikigeneratedid" %)
	2	+ **Contents:**
	3	+
	4	+{{toc/}}
	5	+
1	1	= 1. Introduction =
2	2
3	3	This article provide the examples for RS485-LN to connect to different type of RS485 sensors.
...	...	@@ -6,14 +6,17 @@
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="297" width="534"]]
	14	+[[image:image-20220527091852-1.png]]
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="743" width="528"]](% style="display:none" %)
14	14
	19	+
	20	+[[image:image-20220527091942-2.png]](% style="display:none" %)
	21	+
15	15	Connection
16	16
	24	+
17	17	Related documents:
18	18
19	19	* [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure
...	...	@@ -24,17 +24,20 @@
24	24
25	25	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:
26	26
27		-[[image:https://wiki.dragino.com/images/thumb/3/34/RS485_02_1.png/600px-RS485_02_1.png||height="364" width="600"]]
	35	+[[image:image-20220527092058-3.png]]
28	28
29	29	Connection
30	30
31		-[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]]
32	32
	40	+[[image:image-20220527092146-4.png]]
	41	+
33	33	Connection
34	34
35	35	* [[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
36	36	* [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
37	37
	47	+== ==
	48	+
38	38	== 1.3 Example3: Use RS485-LN with energy meters ==
39	39
40	40	=== 1.3.1 OverView ===
...	...	@@ -47,28 +47,41 @@
47	47	This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
48	48	)))
49	49
50		-[[image:https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="726" width="545"]]
	61	+[[image:image-20220527092419-5.png]]
51	51
52	52	Connection1
53	53
	65	+
	66	+(((
54	54	How to connect with Energy Meter：
	68	+)))
55	55
	70	+(((
56	56	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.
	72	+)))
57	57
	74	+(((
58	58	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
	76	+)))
59	59
	78	+(((
60	60	Power Source VIN to RS485-LN VIN+
	80	+)))
61	61
	82	+(((
62	62	Power Source GND to RS485-LN VIN-
	84	+)))
63	63
	86	+(((
64	64	Once there is power, the RS485-LN will be on.
	88	+)))
65	65
66		-[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="433" width="577"]]
	90	+[[image:image-20220527092514-6.png]]
67	67
68	68	Connection2
69	69
70	70
71		-[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="763" width="573"]]
	95	+[[image:image-20220527092555-7.png]]
72	72
73	73	Connection3
74	74
...	...	@@ -77,11 +77,12 @@
77	77
78	78	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.
79	79
80		-[[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]]
	104	+[[image:image-20220527092629-8.png]]
81	81
	106	+
82	82	(% class="box infomessage" %)
83	83	(((
84		-Example:AT+COMMAND1=01 03 00 00 00 01 84 0A
	109	+**Example:** AT+COMMAND1=01 03 00 00 00 01 84 0A
85	85	)))
86	86
87	87	* The first byte : slave address code (=001～247)
...	...	@@ -96,7 +96,7 @@
96	96
97	97	(% class="box infomessage" %)
98	98	(((
99		-Example:RETURN1：01 03 02 08 FD 7E 05
	124	+**Example:** RETURN1：01 03 02 08 FD 7E 05
100	100	)))
101	101
102	102	* The first byte ARD: slave address code (=001～254)
...	...	@@ -106,10 +106,16 @@
106	106	* The 6th and 7th bytes: CRC16 checksum
107	107	* 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
108	108
	134	+(% class="wikigeneratedid" %)
	135	+(((
	136	+
	137	+)))
	138	+
109	109	=== 1.3.3 How to configure RS485-LN and parse output commands ===
110	110
111	111	RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
112	112
	143	+
113	113	==== 1.3.3.1 via AT COMMAND: ====
114	114
115	115	First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct.
...	...	@@ -118,13 +118,14 @@
118	118	If the configured parameters and commands are incorrect, the return value is not obtained.
119	119	)))
120	120
121		-[[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
	152	+[[image:image-20220527092748-9.png]]
122	122
123	123	AT COMMAND
124	124
	156	+
125	125	(% class="box infomessage" %)
126	126	(((
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
	159	+ 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	128	)))
129	129
130	130	a: length for the return of AT+COMMAND
...	...	@@ -133,22 +133,23 @@
133	133
134	134	c: define the position for valid value.
135	135
136		-[[image:https://wiki.dragino.com/images/7/7d/AT_COMMAND2.png||height="278" width="477"]]
	168	+[[image:image-20220527092936-10.png]]
137	137
138	138	AT COMMAND
139	139
	172	+
140	140	PAYLOAD is available after the valid value is intercepted.
141	141
142	142
143		-[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]]
	176	+[[image:image-20220527093059-11.png]]
144	144
145	145	AT COMMAND
146	146
	180	+
147	147	You can get configured PAYLOAD on TTN.
148	148
	183	+[[image:image-20220527093133-12.png]]
149	149
150		-[[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
151		-
152	152	(((
153	153	AT COMMAND
154	154	)))
...	...	@@ -197,14 +197,14 @@
197	197	Payload:01 00 02 39 85 08 DC 00 00 00 44
198	198	)))
199	199
200		-[[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]
	233	+[[image:image-20220527093204-13.png]]
201	201
202	202	AT COMMAND
203	203
204		-01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.
205	205
	238	+(% 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.**
206	206
207		-[[~[~[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]]
	240	+[[image:image-20220527093251-14.png]]
208	208
209	209	AT COMMAND
210	210
...	...	@@ -211,7 +211,7 @@
211	211
212	212	==== 1.3.3.2 via LoRaWAN DOWNLINK ====
213	213
214		-[[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
	247	+[[image:image-20220527093358-15.png]]
215	215
216	216	(((
217	217	DOWNLINK
...	...	@@ -222,12 +222,15 @@
222	222	)))
223	223
224	224	(((
225		-Type Code 0xAF
	258	+**Type Code 0xAF**
226	226	)))
227	227
228	228	(((
	262	+(% class="box infomessage" %)
	263	+(((
229	229	0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
230	230	)))
	266	+)))
231	231
232	232	(((
233	233	Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
...	...	@@ -273,27 +273,28 @@
273	273	AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1
274	274	)))
275	275
276		-[[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]]
	312	+[[image:image-20220527093430-16.png]]
277	277
278	278	DOWNLINK
279	279
280	280
281		-[[~[~[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]]
	317	+[[image:image-20220527093508-17.png]]
282	282
283	283	DOWNLINK
284	284
285	285
286		-[[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]]
	322	+[[image:image-20220527093530-18.png]]
287	287
288	288	DOWNLINK
289	289
290	290
291		-[[~[~[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]]
	327	+[[image:image-20220527093607-19.png]]
292	292
293	293	DOWNLINK
294	294
295		-[[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]]
296	296
	332	+[[image:image-20220527093628-20.png]]
	333	+
297	297	DOWNLINK
298	298
299	299
...	...	@@ -319,12 +319,12 @@
319	319	check digit: Even
320	320	)))
321	321
322		-[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]]
	359	+[[image:image-20220527093708-21.png]]
323	323
324	324	USB
325	325
326	326
327		-[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]]
	364	+[[image:image-20220527093747-22.png]]
328	328
329	329	USB
330	330
...	...	@@ -338,36 +338,57 @@
338	338	)))
339	339
340	340	(((
341		- output:01 03 04 00 00 00 42 7A 02
	378	+ output：01 03 04 00 00 00 42 7A 02
342	342	)))
343	343
344		-[[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
	381	+[[image:image-20220527093821-23.png]]
345	345
346	346	USB
347	347
	385	+
348	348	=== 1.3.5 How to configure multiple devices and modify device addresses ===
349	349
350	350	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.
351	351
	390	+(((
	391	+(((
352	352	Set the device address according to the parameters in the appendix of the MODBUS communication protocol.
	393	+)))
	394	+)))
353	353
354		-[[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]
	396	+[[image:image-20220527093849-24.png]]
355	355
356		-Example:These two meters are examples of setting parameters and device addresses.
357	357
358		-[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]]
	399	+**Example**:These two meters are examples of setting parameters and device addresses.
359	359
360		-[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="800" width="600"]]
	401	+[[image:image-20220527093950-25.png]]
361	361
	403	+[[image:image-20220527094028-26.png]]
	404	+
	405	+(((
	406	+(((
362	362	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.
	408	+)))
	409	+)))
363	363
	411	+(((
	412	+(((
364	364	We can use AT+CFGDEV to set the device address.
	414	+)))
	415	+)))
365	365
	417	+(((
	418	+(((
366	366	We modify the device address 01 of the first energy meter to 02.
	420	+)))
	421	+)))
367	367
368		-[[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]
	423	+[[image:image-20220527094100-27.png]]
369	369
370		-AT+CFGDEV:01 10 00 61 00 01 02 00 02,1
	425	+(% class="box infomessage" %)
	426	+(((
	427	+**AT+CFGDEV:01 10 00 61 00 01 02 00 02,1**
	428	+)))
371	371
372	372	* 01:device adaress
373	373
...	...	@@ -389,15 +389,17 @@
389	389
390	390	Its default device address is 01, and the following are the parameters for configuring two energy meters.
391	391
392		-[[image:https://wiki.dragino.com/images/1/13/Meter11.png||alt="Meter11.png" height="576" width="379"]]
	450	+[[image:image-20220527094150-28.png]]
393	393
394		-[[image:https://wiki.dragino.com/images/thumb/7/7e/Meter12.png/600px-Meter12.png||alt="Meter12.png" height="262" width="600"]]
395	395
	453	+[[image:image-20220527094224-29.png]]
	454	+
396	396	PAYLOAD:01 08 DF 43 62
397	397
398	398	* 08 DF is the valid value of the meter with device address 02.
399	399	* 43 62 is the valid value of the meter with device address 01.
400	400
	460	+
401	401	== 1.4 Example 4: Circuit Breaker Remote Open Close ==
402	402
403	403	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 SCHNEIDER SMART and Monitor and control your cabinet remotely with no wires and with Dragino RS485-LN LoRaWAN technology. The structure is like below:

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