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11 11  
12 12  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:
13 13  
14 -[[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]]
15 15  
16 16  Connection
17 17  
18 18  
19 -[[image:https://wiki.dragino.com/images/thumb/f/f2/RS485_02.png/600px-RS485_02.png||height="743" width="528"]](% style="display:none" %)
20 20  
20 +[[image:image-20220527091942-2.png]](% style="display:none" %)
21 +
21 21  Connection
22 22  
24 +
23 23  Related documents:
24 24  
25 25  * [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure
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30 30  
31 31  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:
32 32  
33 -[[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]]
34 34  
35 35  Connection
36 36  
37 37  
38 -[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]]
40 +[[image:image-20220527092146-4.png]]
39 39  
40 40  Connection
41 41  
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42 42  * [[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
43 43  * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]]
44 44  
47 +== ==
48 +
45 45  == 1.3 Example3: Use RS485-LN with energy meters ==
46 46  
47 47  === 1.3.1 OverView ===
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54 54  This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter.
55 55  )))
56 56  
57 -[[image:https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="726" width="545"]]
61 +[[image:image-20220527092419-5.png]]
58 58  
59 59  Connection1
60 60  
65 +
61 61  (((
62 62  How to connect with Energy Meter：
63 63  )))
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82 82  Once there is power, the RS485-LN will be on.
83 83  )))
84 84  
85 -[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="433" width="577"]]
90 +[[image:image-20220527092514-6.png]]
86 86  
87 87  Connection2
88 88  
89 89  
90 -[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="712" width="534"]]
95 +[[image:image-20220527092555-7.png]]
91 91  
92 92  Connection3
93 93  
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96 96  
97 97  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.
98 98  
99 -[[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]]
100 100  
106 +
101 101  (% class="box infomessage" %)
102 102  (((
103 -Example:AT+COMMAND1=01 03 00 00 00 01 84 0A
109 +**Example:** AT+COMMAND1=01 03 00 00 00 01 84 0A
104 104  )))
105 105  
106 106  * The first byte : slave address code (=001～247)
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115 115  
116 116  (% class="box infomessage" %)
117 117  (((
118 -Example:RETURN1：01 03 02 08 FD 7E 05
124 +**Example:** RETURN1：01 03 02 08 FD 7E 05
119 119  )))
120 120  
121 121  * The first byte ARD: slave address code (=001～254)
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125 125  * The 6th and 7th bytes: CRC16 checksum
126 126  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
127 127  
134 +(% class="wikigeneratedid" %)
135 +(((
136 +
137 +)))
138 +
128 128  === 1.3.3 How to configure RS485-LN and parse output commands ===
129 129  
130 130  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
131 131  
143 +
132 132  ==== 1.3.3.1 via AT COMMAND: ====
133 133  
134 134  First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct.
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137 137  If the configured parameters and commands are incorrect, the return value is not obtained.
138 138  )))
139 139  
140 -[[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
152 +[[image:image-20220527092748-9.png]]
141 141  
142 142  AT COMMAND
143 143  
156 +
144 144  (% class="box infomessage" %)
145 145  (((
146 146   AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c
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152 152  
153 153  c: define the position for valid value.
154 154  
155 -[[image:https://wiki.dragino.com/images/7/7d/AT_COMMAND2.png||height="278" width="477"]]
168 +[[image:image-20220527092936-10.png]]
156 156  
157 157  AT COMMAND
158 158  
172 +
159 159  PAYLOAD is available after the valid value is intercepted.
160 160  
161 161  
162 -[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]]
176 +[[image:image-20220527093059-11.png]]
163 163  
164 164  AT COMMAND
165 165  
180 +
166 166  You can get configured PAYLOAD on TTN.
167 167  
183 +[[image:image-20220527093133-12.png]]
168 168  
169 -[[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
170 -
171 171  (((
172 172  AT COMMAND
173 173  )))
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216 216  Payload:01 00 02 39 85 08 DC 00 00 00 44
217 217  )))
218 218  
219 -[[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]]
220 220  
221 221  AT COMMAND
222 222  
223 -01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.
224 224  
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.**
225 225  
226 -[[~[~[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]]
227 227  
228 228  AT COMMAND
229 229  
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230 230  
231 231  ==== 1.3.3.2 via LoRaWAN DOWNLINK ====
232 232  
233 -[[image:image-20220512104358-3.png]]
247 +[[image:image-20220527093358-15.png]]
234 234  
235 235  (((
236 236  DOWNLINK
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295 295  AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1
296 296  )))
297 297  
298 -[[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]]
299 299  
300 300  DOWNLINK
301 301  
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