Last modified by Karry Zhuang on 2024/07/11 11:58
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... ... @@ -10,6 +10,7 @@ 10 10 11 11 Connection 12 12 13 + 13 13 [[image:https://wiki.dragino.com/images/thumb/f/f2/RS485_02.png/600px-RS485_02.png||height="743" width="528"]](% style="display:none" %) 14 14 15 15 Connection ... ... @@ -28,6 +28,7 @@ 28 28 29 29 Connection 30 30 32 + 31 31 [[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]] 32 32 33 33 Connection ... ... @@ -51,17 +51,29 @@ 51 51 52 52 Connection1 53 53 56 +((( 54 54 How to connect with Energy Meter： 58 +))) 55 55 60 +((( 56 56 Follow the instructions of the electric energy meter to connect the phase line and the neutral line, and then connect 485A+ and 485B- to RS485A and RA485B of RS485-LN respectively. 62 +))) 57 57 64 +((( 58 58 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below 66 +))) 59 59 68 +((( 60 60 Power Source VIN to RS485-LN VIN+ 70 +))) 61 61 72 +((( 62 62 Power Source GND to RS485-LN VIN- 74 +))) 63 63 76 +((( 64 64 Once there is power, the RS485-LN will be on. 78 +))) 65 65 66 66 [[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="433" width="577"]] 67 67 ... ... @@ -124,7 +124,7 @@ 124 124 125 125 (% class="box infomessage" %) 126 126 ((( 127 -AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 141 + AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 128 128 ))) 129 129 130 130 a: length for the return of AT+COMMAND ... ... @@ -211,7 +211,7 @@ 211 211 212 212 ==== 1.3.3.2 via LoRaWAN DOWNLINK ==== 213 213 214 -[[image: https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]228 +[[image:image-20220512104358-3.png]] 215 215 216 216 ((( 217 217 DOWNLINK ... ... @@ -222,12 +222,15 @@ 222 222 ))) 223 223 224 224 ((( 225 -Type Code 0xAF 239 +**Type Code 0xAF** 226 226 ))) 227 227 228 228 ((( 243 +(% class="box infomessage" %) 244 +((( 229 229 0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 230 230 ))) 247 +))) 231 231 232 232 ((( 233 233 Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
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