Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
Last modified by Karry Zhuang on 2025/03/06 16:34
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... ... @@ -206,8 +206,18 @@ 206 206 207 207 === 3.3.1 onfigure UART settings for RS485 or TTL communication === 208 208 209 - To useRS485-LNto read data from RS485 sensors,connect the RS485-LNA/B tracestothesensors.And user need tomakesureRS485-LN use the matchUART settingtoaccess thesensors.Therelatedcommandsfor UART settings are:209 +RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect. 210 210 211 +**~1. RS485-MODBUS mode:** 212 + 213 +AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins. 214 + 215 +**2. TTL mode:** 216 + 217 +AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins. 218 + 219 +RS485-BL default UART settings is **9600, no parity, stop bit 1**. If the sensor has a different settings, user can change the RS485-BL setting to match. 220 + 211 211 (% border="1" style="background-color:#ffffcc; color:green; width:795px" %) 212 212 |((( 213 213 **AT Commands** ... ... @@ -232,7 +232,13 @@ 232 232 |((( 233 233 AT+PARITY 234 234 )))|(% style="width:285px" %)((( 245 +((( 235 235 Set UART parity (for RS485 connection) 247 +))) 248 + 249 +((( 250 +Default Value is: no parity. 251 +))) 236 236 )))|(% style="width:347px" %)((( 237 237 ((( 238 238 AT+PARITY=0 ... ... @@ -250,7 +250,7 @@ 250 250 ))) 251 251 252 252 ((( 253 - 269 +Default Value is: 1bit. 254 254 ))) 255 255 )))|(% style="width:347px" %)((( 256 256 ((( ... ... @@ -269,10 +269,12 @@ 269 269 === 3.3.2 Configure sensors === 270 270 271 271 ((( 288 +Some sensors might need to configure before normal operation. User can configure such sensor via PC or through RS485-BL AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**. 289 +))) 290 + 272 272 ((( 273 - Some sensors might need to configurebefore normal operation. Usercan configuresuchsensorviaPC andRS485 adapter or through RS485-LN AT Commands(% style="color:#4f81bd" %)**AT+CFGDEV**(%%).Each (% style="color:#4f81bd" %)**AT+CFGDEVRS485command to sensors. This command will only run when user input it and won’t run during each sampling.292 +When user issue an (% style="color:#4f81bd" %)**AT+CFGDEV**(%%) command, Each (% style="color:#4f81bd" %)**AT+CFGDEV**(%%) equals to send a command to the RS485 or TTL sensors. This command will only run when user input it and won’t run during each sampling. 274 274 ))) 275 -))) 276 276 277 277 (% border="1" style="background-color:#ffffcc; color:green; width:806px" %) 278 278 |**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**