Last modified by Karry Zhuang on 2024/07/11 11:58
<
From version < 13.2 >
edited by Xiaoling
on 2022/05/27 09:26
To version < 21.1 >
edited by Xiaoling
on 2022/05/27 09:33
>
Change comment: Uploaded new attachment "image-20220527093358-15.png", version {1}

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94 94  Connection2
95 95  
96 96  
97 +[[image:image-20220527092555-7.png]]
97 97  
98 98  Connection3
99 99  
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102 102  
103 103  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.
104 104  
105 -[[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]]
106 +[[image:image-20220527092629-8.png]]
106 106  
108 +
107 107  (% class="box infomessage" %)
108 108  (((
109 -Example:AT+COMMAND1=01 03 00 00 00 01 84 0A
111 +**Example:** AT+COMMAND1=01 03 00 00 00 01 84 0A
110 110  )))
111 111  
112 112  * The first byte : slave address code (=001～247)
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121 121  
122 122  (% class="box infomessage" %)
123 123  (((
124 -Example:RETURN1：01 03 02 08 FD 7E 05
126 +**Example:** RETURN1：01 03 02 08 FD 7E 05
125 125  )))
126 126  
127 127  * The first byte ARD: slave address code (=001～254)
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131 131  * The 6th and 7th bytes: CRC16 checksum
132 132  * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage.
133 133  
136 +(% class="wikigeneratedid" %)
137 +(((
138 +
139 +)))
140 +
134 134  === 1.3.3 How to configure RS485-LN and parse output commands ===
135 135  
136 136  RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK.
137 137  
145 +
138 138  ==== 1.3.3.1 via AT COMMAND: ====
139 139  
140 140  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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143 143  If the configured parameters and commands are incorrect, the return value is not obtained.
144 144  )))
145 145  
146 -[[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]
154 +[[image:image-20220527092748-9.png]]
147 147  
148 148  AT COMMAND
149 149  
158 +
150 150  (% class="box infomessage" %)
151 151  (((
152 152   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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158 158  
159 159  c: define the position for valid value.
160 160  
161 -[[image:https://wiki.dragino.com/images/7/7d/AT_COMMAND2.png||height="278" width="477"]]
170 +[[image:image-20220527092936-10.png]]
162 162  
163 163  AT COMMAND
164 164  
174 +
165 165  PAYLOAD is available after the valid value is intercepted.
166 166  
167 167  
168 -[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]]
178 +[[image:image-20220527093059-11.png]]
169 169  
170 170  AT COMMAND
171 171  
182 +
172 172  You can get configured PAYLOAD on TTN.
173 173  
185 +[[image:image-20220527093133-12.png]]
174 174  
175 -[[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]
176 -
177 177  (((
178 178  AT COMMAND
179 179  )))
... ... @@ -222,15 +222,15 @@
222 222  Payload:01 00 02 39 85 08 DC 00 00 00 44
223 223  )))
224 224  
225 -[[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]
235 +[[image:image-20220527093204-13.png]]
226 226  
227 227  AT COMMAND
228 228  
239 +
229 229  01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.
230 230  
242 +[[image:image-20220527093251-14.png]]
231 231  
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 -
234 234  AT COMMAND
235 235  
236 236  
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