Last modified by Karry Zhuang on 2024/07/11 11:58
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... ... @@ -76,13 +76,14 @@ 76 76 77 77 === 1.3.2 How to use the parameters of the energy meter and MODBUS commands === 78 78 79 -If the user needs to read the parameters of the electric energy meter and use the modbus command, 79 +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. 80 80 81 -please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter. 82 - 83 83 [[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]] 84 84 83 +(% class="box infomessage" %) 84 +((( 85 85 Example:AT+COMMAND1=01 03 00 00 00 01 84 0A 86 +))) 86 86 87 87 * The first byte : slave address code (=001~247) 88 88 * The second byte : read register value function code ... ... @@ -92,7 +92,10 @@ 92 92 93 93 How to parse the reading of the return command of the parameter: 94 94 96 +(% class="box infomessage" %) 97 +((( 95 95 Example:RETURN1:01 03 02 08 FD 7E 05 99 +))) 96 96 97 97 * The first byte ARD: slave address code (=001~254) 98 98 * The second byte: Return to read function code ... ... @@ -106,17 +106,22 @@ 106 106 107 107 RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK. 108 108 109 -==== via AT COMMAND: ==== 113 +==== 1.3.3.1 via AT COMMAND: ==== 110 110 111 -First, we can use AT+CFGDEV to get the return value, and we can also judge whether the input parameters are correct. 115 +First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct. 112 112 117 +((( 113 113 If the configured parameters and commands are incorrect, the return value is not obtained. 119 +))) 114 114 115 115 [[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]] 116 116 117 -AT COMMAND 123 +**AT COMMAND** 118 118 125 +(% class="box infomessage" %) 126 +((( 119 119 AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 128 +))) 120 120 121 121 a: length for the return of AT+COMMAND 122 122 ... ... @@ -130,6 +130,7 @@ 130 130 131 131 PAYLOAD is available after the valid value is intercepted. 132 132 142 + 133 133 [[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]] 134 134 135 135 AT COMMAND ... ... @@ -136,11 +136,12 @@ 136 136 137 137 You can get configured PAYLOAD on TTN. 138 138 149 + 139 139 [[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]] 140 140 141 141 AT COMMAND 142 142 143 -Example: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1 154 +**Example**: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1 144 144 145 145 RETURN1:01 03 02 00 02 39 85 00 00(return data) 146 146 ... ... @@ -166,12 +166,14 @@ 166 166 167 167 01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy. 168 168 180 + 169 169 [[~[~[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]] 170 170 171 171 AT COMMAND 172 172 173 -==== 1.3.3.1 via LoRaWAN DOWNLINK ==== 174 174 186 +==== 1.3.3.2 via LoRaWAN DOWNLINK ==== 187 + 175 175 [[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]] 176 176 177 177 DOWNLINK ... ... @@ -206,14 +206,17 @@ 206 206 207 207 DOWNLINK 208 208 222 + 209 209 [[~[~[image:https://wiki.dragino.com/images/thumb/2/20/DOWNLINK_METER3.png/600px-DOWNLINK_METER3.png~|~|height="105" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER3.png]] 210 210 211 211 DOWNLINK 212 212 227 + 213 213 [[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]] 214 214 215 215 DOWNLINK 216 216 232 + 217 217 [[~[~[image:https://wiki.dragino.com/images/thumb/3/39/DOWNLINK_METER5.png/600px-DOWNLINK_METER5.png~|~|height="176" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER5.png]] 218 218 219 219 DOWNLINK