Last modified by Karry Zhuang on 2024/07/11 11:58
<
From version < 21.1 >
edited by Xiaoling
on 2022/05/27 09:33
To version < 15.1 >
edited by Xiaoling
on 2022/05/27 09:27
>
Change comment: Uploaded new attachment "image-20220527092748-9.png", version {1}

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... ... @@ -94,7 +94,6 @@
94 94  Connection2
95 95  
96 96  
97 -[[image:image-20220527092555-7.png]]
98 98  
99 99  Connection3
100 100  
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103 103  
104 104  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.
105 105  
106 -[[image:image-20220527092629-8.png]]
105 +[[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]]
107 107  
108 -
109 109  (% class="box infomessage" %)
110 110  (((
111 -**Example:** AT+COMMAND1=01 03 00 00 00 01 84 0A
109 +Example:AT+COMMAND1=01 03 00 00 00 01 84 0A
112 112  )))
113 113  
114 114  * The first byte : slave address code (=001～247)
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123 123  
124 124  (% class="box infomessage" %)
125 125  (((
126 -**Example:** RETURN1：01 03 02 08 FD 7E 05
124 +Example:RETURN1：01 03 02 08 FD 7E 05
127 127  )))
128 128  
129 129  * The first byte ARD: slave address code (=001～254)
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133 133  * The 6th and 7th bytes: CRC16 checksum
134 134  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
135 135  
136 -(% class="wikigeneratedid" %)
137 -(((
138 -
139 -)))
140 -
141 141  === 1.3.3 How to configure RS485-LN and parse output commands ===
142 142  
143 143  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
144 144  
145 -
146 146  ==== 1.3.3.1 via AT COMMAND: ====
147 147  
148 148  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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151 151  If the configured parameters and commands are incorrect, the return value is not obtained.
152 152  )))
153 153  
154 -[[image:image-20220527092748-9.png]]
146 +[[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
155 155  
156 156  AT COMMAND
157 157  
158 -
159 159  (% class="box infomessage" %)
160 160  (((
161 161   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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167 167  
168 168  c: define the position for valid value.
169 169  
170 -[[image:image-20220527092936-10.png]]
161 +[[image:https://wiki.dragino.com/images/7/7d/AT_COMMAND2.png||height="278" width="477"]]
171 171  
172 172  AT COMMAND
173 173  
174 -
175 175  PAYLOAD is available after the valid value is intercepted.
176 176  
177 177  
178 -[[image:image-20220527093059-11.png]]
168 +[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]]
179 179  
180 180  AT COMMAND
181 181  
182 -
183 183  You can get configured PAYLOAD on TTN.
184 184  
185 -[[image:image-20220527093133-12.png]]
186 186  
175 +[[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
176 +
187 187  (((
188 188  AT COMMAND
189 189  )))
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232 232  Payload:01 00 02 39 85 08 DC 00 00 00 44
233 233  )))
234 234  
235 -[[image:image-20220527093204-13.png]]
225 +[[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]
236 236  
237 237  AT COMMAND
238 238  
239 -
240 240  01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.
241 241  
242 -[[image:image-20220527093251-14.png]]
243 243  
232 +[[~[~[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]]
233 +
244 244  AT COMMAND
245 245  
246 246  
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