Last modified by Bei Jinggeng on 2023/08/08 15:23
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... ... @@ -94,6 +94,7 @@ 94 94 Connection2 95 95 96 96 97 +[[image:image-20220527092555-7.png]] 97 97 98 98 Connection3 99 99 ... ... @@ -102,11 +102,12 @@ 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) ... ... @@ -121,7 +121,7 @@ 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) ... ... @@ -131,10 +131,16 @@ 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. ... ... @@ -143,10 +143,11 @@ 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 ... ... @@ -158,22 +158,23 @@ 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