Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
Last modified by Bei Jinggeng on 2025/01/16 11:36
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... ... @@ -1097,55 +1097,110 @@ 1097 1097 1098 1098 [[image:image-20220602171200-8.png||height="567" width="1007"]] 1099 1099 1100 +((( 1100 1100 To enable the listening mode, use can run the command AT+RXMODE. 1102 +))) 1101 1101 1104 +((( 1105 + 1106 +))) 1102 1102 1103 -(% border="1" style="background-color:#ffffcc; width:500px" %) 1104 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function** 1105 -|(% style="width:161px" %)AT+RXMODE=1,10 |(% style="width:337px" %)Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks. 1106 -|(% style="width:161px" %)AT+RXMODE=2,500|(% style="width:337px" %)Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms 1107 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings. 1108 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 ~| cc) 1108 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %) 1109 +|=(% style="width: 161px;" %)((( 1110 +**Command example:** 1111 +)))|=(% style="width: 337px;" %)((( 1112 +**Function** 1113 +))) 1114 +|(% style="width:161px" %)((( 1115 +AT+RXMODE=1,10 1116 +)))|(% style="width:337px" %)((( 1117 +Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks. 1118 +))) 1119 +|(% style="width:161px" %)((( 1120 +AT+RXMODE=2,500 1121 +)))|(% style="width:337px" %)((( 1122 +Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms 1123 +))) 1124 +|(% style="width:161px" %)((( 1125 +AT+RXMODE=0,0 1126 +)))|(% style="width:337px" %)((( 1127 +Disable listening mode. This is the default settings. 1128 +))) 1129 +|(% style="width:161px" %)((( 1130 + 1131 +)))|(% style="width:337px" %)((( 1132 +A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 | cc) 1133 +))) 1109 1109 1135 +((( 1110 1110 **Downlink Command:** 1137 +))) 1111 1111 1139 +((( 1112 1112 **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc) 1141 +))) 1113 1113 1143 +((( 1144 + 1145 +))) 1114 1114 1147 +((( 1115 1115 **Example**: 1149 +))) 1116 1116 1151 +((( 1117 1117 The RS485-LN is set to AT+RXMODE=2,1000 1153 +))) 1118 1118 1155 +((( 1119 1119 There is a two Modbus commands in the RS485 network as below: 1157 +))) 1120 1120 1159 +((( 1121 1121 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b 1161 +))) 1122 1122 1163 +((( 1123 1123 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33 1165 +))) 1124 1124 1167 +((( 1125 1125 RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33 1169 +))) 1126 1126 1171 +((( 1127 1127 [[image:image-20220602171200-9.png]] 1173 +))) 1128 1128 1175 +((( 1176 + 1177 +))) 1129 1129 1179 +((( 1130 1130 (% style="color:red" %)Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while. 1181 +))) 1131 1131 1132 1132 1133 1133 == 3.7 Buttons == 1134 1134 1135 1135 1136 -(% border="1" style="background-color:#f7faff; width:500px" %) 1187 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:500px" %) 1137 1137 |=**Button**|=(% style="width: 1420px;" %)**Feature** 1138 1138 |**ACT**|(% style="width:1420px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink** 1139 1139 |**RST**|(% style="width:1420px" %)Reboot RS485 1140 1140 |**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]] 1141 1141 1193 + 1194 + 1142 1142 == 3.8 LEDs == 1143 1143 1144 -(% border="1" style="background-color:#f7faff; width:500px" %) 1197 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:500px" %) 1145 1145 |=**LEDs**|=**Feature** 1146 1146 |**PWR**|Always on if there is power 1147 1147 |**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN** (%%)for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds**(%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message. 1148 1148 1202 + 1203 + 1149 1149 = 4. Case Study = 1150 1150 1151 1151 User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]] ... ... @@ -1155,17 +1155,23 @@ 1155 1155 1156 1156 == 5.1 Access AT Command == 1157 1157 1213 +((( 1158 1158 RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below. 1215 +))) 1159 1159 1160 1160 [[image:1654162355560-817.png]] 1161 1161 1162 1162 1220 +((( 1163 1163 In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference: 1222 +))) 1164 1164 1165 1165 [[image:1654162368066-342.png]] 1166 1166 1167 1167 1227 +((( 1168 1168 More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]] 1229 +))) 1169 1169 1170 1170 1171 1171 == 5.2 Common AT Command Sequence ==