Last modified by Karry Zhuang on 2024/07/11 11:58
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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 ... ... @@ -103,12 +103,11 @@ 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 0A109 +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) ... ... @@ -123,7 +123,7 @@ 123 123 124 124 (% class="box infomessage" %) 125 125 ((( 126 - **Example:**RETURN1：01 03 02 08 FD 7E 05124 +Example:RETURN1：01 03 02 08 FD 7E 05 127 127 ))) 128 128 129 129 * The first byte ARD: slave address code (=001～254) ... ... @@ -133,16 +133,10 @@ 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. ... ... @@ -151,11 +151,10 @@ 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 ... ... @@ -167,23 +167,22 @@ 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 ))) ... ... @@ -232,15 +232,15 @@ 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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