Last modified by Karry Zhuang on 2024/07/11 11:58
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... ... @@ -53,17 +53,29 @@ 53 53 54 54 Connection1 55 55 56 +((( 56 56 How to connect with Energy Meter： 58 +))) 57 57 60 +((( 58 58 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 +))) 59 59 64 +((( 60 60 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below 66 +))) 61 61 68 +((( 62 62 Power Source VIN to RS485-LN VIN+ 70 +))) 63 63 72 +((( 64 64 Power Source GND to RS485-LN VIN- 74 +))) 65 65 76 +((( 66 66 Once there is power, the RS485-LN will be on. 78 +))) 67 67 68 68 [[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="433" width="577"]] 69 69 ... ... @@ -126,7 +126,7 @@ 126 126 127 127 (% class="box infomessage" %) 128 128 ((( 129 -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 130 130 ))) 131 131 132 132 a: length for the return of AT+COMMAND ... ... @@ -213,7 +213,7 @@ 213 213 214 214 ==== 1.3.3.2 via LoRaWAN DOWNLINK ==== 215 215 216 -[[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]] 217 217 218 218 ((( 219 219 DOWNLINK ... ... @@ -224,12 +224,15 @@ 224 224 ))) 225 225 226 226 ((( 227 -Type Code 0xAF 239 +**Type Code 0xAF** 228 228 ))) 229 229 230 230 ((( 243 +(% class="box infomessage" %) 244 +((( 231 231 0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 232 232 ))) 247 +))) 233 233 234 234 ((( 235 235 Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. ... ... @@ -341,7 +341,7 @@ 341 341 ))) 342 342 343 343 ((( 344 - output:01 03 04 00 00 00 42 7A 02 359 + output: 01 03 04 00 00 00 42 7A 02 345 345 ))) 346 346 347 347 [[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]
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