<
From version < 1.8 >
edited by Xiaoling
on 2022/05/12 10:03
To version < 1.9 >
edited by Xiaoling
on 2022/05/12 10:04
>
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187 187  
188 188  [[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]]
189 189  
190 +(((
190 190  DOWNLINK
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191 191  
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195 +
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197 +
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192 192  Type Code 0xAF
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193 193  
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194 194  0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
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195 195  
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196 196  Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
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197 197  
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198 198  Format: AF MM NN LL XX XX XX XX YY
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199 199  
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200 200  Where:
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201 201  
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202 202  MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
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203 203  
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204 204  NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
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205 205  
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206 206  LL: The length of AT+COMMAND or AT+DATACUT command
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207 207  
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208 208  XX XX XX XX: AT+COMMAND or AT+DATACUT command
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209 209  
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210 210  YY: If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN
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211 211  
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212 212  will execute an uplink after got this command.
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213 213  
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214 214  Example:
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215 215  
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216 216  AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1
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217 217  
218 218  [[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]]
219 219  
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