Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 59.13 >
edited by Xiaoling
on 2022/06/06 14:23
To version < 58.17 >
edited by Xiaoling
on 2022/06/06 11:23
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -92,8 +92,6 @@
92 92  * Automatic RF Sense and CAD with ultra-fast AFC.
93 93  * Packet engine up to 256 bytes with CRC
94 94  
95 -
96 -
97 97  == 1.3 Features ==
98 98  
99 99  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -106,7 +106,6 @@
106 106  * Support Interrupt uplink (Since hardware version v1.2)
107 107  
108 108  
109 -
110 110  == 1.4 Applications ==
111 111  
112 112  * Smart Buildings & Home Automation
... ... @@ -117,7 +117,6 @@
117 117  * Smart Factory
118 118  
119 119  
120 -
121 121  == 1.5 Firmware Change log ==
122 122  
123 123  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -239,15 +239,11 @@
239 239  
240 240  (((
241 241  (((
242 -(((
243 243  There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
244 244  )))
245 -)))
246 246  
247 247  (((
248 -(((
249 249  (% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
250 -)))
251 251  
252 252  
253 253  )))
... ... @@ -328,17 +328,11 @@
328 328  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
329 329  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
330 330  |AT+CFGDEV|(% style="width:110px" %)(((
331 -(((
332 332  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
333 -)))
334 334  
335 -(((
336 336  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
337 -)))
338 338  
339 -(((
340 340  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
341 -)))
342 342  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
343 343  
344 344  
... ... @@ -1011,13 +1011,9 @@
1011 1011  [[image:1654160691922-496.png]]
1012 1012  
1013 1013  
1014 -* (((
1015 -**Downlink Payload:**
1016 -)))
1000 +* **Downlink Payload:**
1017 1017  
1018 -(((
1019 1019  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1020 -)))
1021 1021  
1022 1022  
1023 1023  
... ... @@ -1024,199 +1024,103 @@
1024 1024  
1025 1025  ==== **Set Serial Communication Parameters** ====
1026 1026  
1027 -(((
1028 1028  Set the Rs485 serial communication parameters:
1029 -)))
1030 1030  
1031 -* (((
1032 -**AT Command:**
1033 -)))
1011 +* **AT Command:**
1034 1034  
1035 -(((
1036 1036  Set Baud Rate:
1037 -)))
1038 1038  
1039 1039  (% class="box infomessage" %)
1040 1040  (((
1041 -(((
1042 1042  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1043 1043  )))
1044 -)))
1045 1045  
1046 -(((
1047 1047  Set UART Parity
1048 -)))
1049 1049  
1050 1050  (% class="box infomessage" %)
1051 1051  (((
1052 -(((
1053 1053  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1054 1054  )))
1055 -)))
1056 1056  
1057 -(((
1058 1058  Set STOPBIT
1059 -)))
1060 1060  
1061 1061  (% class="box infomessage" %)
1062 1062  (((
1063 -(((
1064 1064  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1065 1065  )))
1066 -)))
1067 1067  
1068 -(((
1069 -
1070 -)))
1071 1071  
1072 -* (((
1073 -**Downlink Payload:**
1074 -)))
1035 +* **Downlink Payload:**
1075 1075  
1076 -(((
1077 1077  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1078 -)))
1079 1079  
1080 -(((
1081 1081  **Example:**
1082 -)))
1083 1083  
1084 -* (((
1085 -A7 01 00 60   same as AT+BAUDR=9600
1086 -)))
1087 -* (((
1088 -A7 01 04 80  same as AT+BAUDR=115200
1089 -)))
1041 +* A7 01 00 60   same as AT+BAUDR=9600
1042 +* A7 01 04 80  same as AT+BAUDR=115200
1090 1090  
1091 -(((
1092 1092  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1093 -)))
1094 1094  
1095 -(((
1096 1096  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1097 -)))
1098 1098  
1099 1099  
1100 -
1101 -
1102 1102  == 3.6 Listening mode for RS485 network ==
1103 1103  
1104 -(((
1105 1105  This feature support since firmware v1.4
1106 -)))
1107 1107  
1108 -(((
1109 1109  RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
1110 -)))
1111 1111  
1112 1112  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1113 1113  
1114 -(((
1115 1115  To enable the listening mode, use can run the command AT+RXMODE.
1116 -)))
1117 1117  
1118 -(((
1119 -
1120 -)))
1121 1121  
1122 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1123 -|=(% style="width: 100px;" %)(((
1124 -**Command example**
1125 -)))|=(% style="width: 400px;" %)(((
1126 -**Function**
1127 -)))
1128 -|(% style="width:100px" %)(((
1129 -AT+RXMODE=1,10
1130 -)))|(% style="width:400px" %)(((
1131 -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.
1132 -)))
1133 -|(% style="width:100px" %)(((
1134 -AT+RXMODE=2,500
1135 -)))|(% style="width:400px" %)(((
1136 -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
1137 -)))
1138 -|(% style="width:100px" %)(((
1139 -AT+RXMODE=0,0
1140 -)))|(% style="width:400px" %)(((
1141 -Disable listening mode. This is the default settings.
1142 -)))
1143 -|(% style="width:100px" %)(((
1144 -
1145 -)))|(% style="width:400px" %)(((
1146 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1147 -)))
1060 +(% border="1" style="background-color:#ffffcc; width:500px" %)
1061 +|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1062 +|(% 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.
1063 +|(% 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
1064 +|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1065 +|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1148 1148  
1149 -(((
1150 1150  **Downlink Command:**
1151 -)))
1152 1152  
1153 -(((
1154 1154  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1155 -)))
1156 1156  
1157 -(((
1158 -
1159 -)))
1160 1160  
1161 -(((
1162 1162  **Example**:
1163 -)))
1164 1164  
1165 -(((
1166 1166  The RS485-LN is set to AT+RXMODE=2,1000
1167 -)))
1168 1168  
1169 -(((
1170 1170  There is a two Modbus commands in the RS485 network as below:
1171 -)))
1172 1172  
1173 -(((
1174 1174  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1175 -)))
1176 1176  
1177 -(((
1178 1178  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1179 -)))
1180 1180  
1181 -(((
1182 1182  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
1183 -)))
1184 1184  
1185 -(((
1186 1186  [[image:image-20220602171200-9.png]]
1187 -)))
1188 1188  
1189 -(((
1190 -
1191 -)))
1192 1192  
1193 -(((
1194 -(((
1195 1195  (% 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.
1196 -)))
1197 -)))
1198 1198  
1199 1199  
1200 1200  == 3.7 Buttons ==
1201 1201  
1202 1202  
1203 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1204 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1205 -|(% style="width:50px" %)**ACT**|(% style="width:361px" %)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**
1206 -|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1207 -|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1093 +(% border="1" style="background-color:#f7faff; width:500px" %)
1094 +|=**Button**|=(% style="width: 1420px;" %)**Feature**
1095 +|**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**
1096 +|**RST**|(% style="width:1420px" %)Reboot RS485
1097 +|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1208 1208  
1209 -
1210 -
1211 1211  == 3.8 LEDs ==
1212 1212  
1213 -
1214 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1215 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1101 +(% border="1" style="background-color:#f7faff; width:500px" %)
1102 +|=**LEDs**|=**Feature**
1216 1216  |**PWR**|Always on if there is power
1217 -|**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.
1104 +|**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.
1218 1218  
1219 -
1220 1220  = 4. Case Study =
1221 1221  
1222 1222  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]]
... ... @@ -1226,26 +1226,19 @@
1226 1226  
1227 1227  == 5.1 Access AT Command ==
1228 1228  
1229 -(((
1230 1230  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.
1231 -)))
1232 1232  
1233 1233  [[image:1654162355560-817.png]]
1234 1234  
1235 1235  
1236 -(((
1237 1237  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:
1238 -)))
1239 1239  
1240 1240  [[image:1654162368066-342.png]]
1241 1241  
1242 1242  
1243 -(((
1244 1244  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/]]
1245 -)))
1246 1246  
1247 1247  
1248 -
1249 1249  == 5.2 Common AT Command Sequence ==
1250 1250  
1251 1251  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1268,9 +1268,7 @@
1268 1268  )))
1269 1269  
1270 1270  
1271 -(((
1272 1272  If device already joined network:
1273 -)))
1274 1274  
1275 1275  (% class="box infomessage" %)
1276 1276  (((
... ... @@ -1309,12 +1309,10 @@
1309 1309  
1310 1310  (% style="color:red" %)**Note:**
1311 1311  
1312 -(((
1313 1313  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1314 1314  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1315 1315  3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1316 1316  4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1317 -)))
1318 1318  
1319 1319  [[image:1654162478620-421.png]]
1320 1320  
... ... @@ -1323,45 +1323,25 @@
1323 1323  
1324 1324  == 6.1 How to upgrade the image? ==
1325 1325  
1326 -(((
1327 1327  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1328 -)))
1329 1329  
1330 -* (((
1331 -Support new features
1332 -)))
1333 -* (((
1334 -For bug fix
1335 -)))
1336 -* (((
1337 -Change LoRaWAN bands.
1338 -)))
1203 +* Support new features
1204 +* For bug fix
1205 +* Change LoRaWAN bands.
1339 1339  
1340 -(((
1341 1341  Below shows the hardware connection for how to upload an image to RS485-LN:
1342 -)))
1343 1343  
1344 1344  [[image:1654162535040-878.png]]
1345 1345  
1346 -(((
1347 1347  **Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1348 -)))
1349 1349  
1350 -(((
1351 1351  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1352 -)))
1353 1353  
1354 -(((
1355 1355  **Step3: **Open flashloader; choose the correct COM port to update.
1356 -)))
1357 1357  
1358 1358  (((
1359 -(((
1360 -(((
1361 1361  (% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
1362 1362  )))
1363 -)))
1364 -)))
1365 1365  
1366 1366  
1367 1367  [[image:image-20220602175818-12.png]]
... ... @@ -1424,6 +1424,7 @@
1424 1424  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1425 1425  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1426 1426  
1282 +
1427 1427  = 9.Packing Info =
1428 1428  
1429 1429  
... ... @@ -1440,6 +1440,7 @@
1440 1440  * Package Size / pcs : 14.5 x 8 x 5 cm
1441 1441  * Weight / pcs : 170g
1442 1442  
1299 +
1443 1443  = 10. FCC Caution for RS485LN-US915 =
1444 1444  
1445 1445  (((

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0