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... ... @@ -41,9 +41,13 @@ 41 41 42 42 === 1.3.1 OverView === 43 43 44 -Note:The specifications of each energy meter are different, please refer to your own energy meter specifications. 44 +((( 45 +**Note**:The specifications of each energy meter are different, please refer to your own energy meter specifications. 46 +))) 45 45 48 +((( 46 46 This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter. 50 +))) 47 47 48 48 [[image:https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="800" width="600"]] 49 49 ... ... @@ -72,13 +72,14 @@ 72 72 73 73 === 1.3.2 How to use the parameters of the energy meter and MODBUS commands === 74 74 75 -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. 76 76 77 -please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter. 78 - 79 79 [[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]] 80 80 83 +(% class="box infomessage" %) 84 +((( 81 81 Example:AT+COMMAND1=01 03 00 00 00 01 84 0A 86 +))) 82 82 83 83 * The first byte : slave address code (=001~247) 84 84 * The second byte : read register value function code ... ... @@ -88,7 +88,10 @@ 88 88 89 89 How to parse the reading of the return command of the parameter: 90 90 96 +(% class="box infomessage" %) 97 +((( 91 91 Example:RETURN1:01 03 02 08 FD 7E 05 99 +))) 92 92 93 93 * The first byte ARD: slave address code (=001~254) 94 94 * The second byte: Return to read function code ... ... @@ -102,17 +102,22 @@ 102 102 103 103 RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK. 104 104 105 -==== via AT COMMAND: ==== 113 +==== 1.3.3.1 via AT COMMAND: ==== 106 106 107 -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. 108 108 117 +((( 109 109 If the configured parameters and commands are incorrect, the return value is not obtained. 119 +))) 110 110 111 111 [[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]] 112 112 113 -AT COMMAND 123 +**AT COMMAND** 114 114 125 +(% class="box infomessage" %) 126 +((( 115 115 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 +))) 116 116 117 117 a: length for the return of AT+COMMAND 118 118 ... ... @@ -126,6 +126,7 @@ 126 126 127 127 PAYLOAD is available after the valid value is intercepted. 128 128 142 + 129 129 [[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]] 130 130 131 131 AT COMMAND ... ... @@ -132,11 +132,12 @@ 132 132 133 133 You can get configured PAYLOAD on TTN. 134 134 149 + 135 135 [[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]] 136 136 137 137 AT COMMAND 138 138 139 -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 01,1 140 140 141 141 RETURN1:01 03 02 00 02 39 85 00 00(return data) 142 142 ... ... @@ -162,12 +162,14 @@ 162 162 163 163 01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy. 164 164 180 + 165 165 [[~[~[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]] 166 166 167 167 AT COMMAND 168 168 169 -==== 1.3.3.1 via LoRaWAN DOWNLINK ==== 170 170 186 +==== 1.3.3.2 via LoRaWAN DOWNLINK ==== 187 + 171 171 [[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]] 172 172 173 173 DOWNLINK ... ... @@ -202,14 +202,17 @@ 202 202 203 203 DOWNLINK 204 204 222 + 205 205 [[~[~[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]] 206 206 207 207 DOWNLINK 208 208 227 + 209 209 [[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]] 210 210 211 211 DOWNLINK 212 212 232 + 213 213 [[~[~[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]] 214 214 215 215 DOWNLINK