Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 59.5 >
edited by Xiaoling
on 2022/06/06 14:21
To version < 58.15 >
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  )))
... ... @@ -316,6 +316,7 @@
316 316  )))
317 317  
318 318  
311 +
319 319  === 3.3.2 Configure sensors ===
320 320  
321 321  (((
... ... @@ -327,19 +327,15 @@
327 327  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
328 328  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
329 329  |AT+CFGDEV|(% style="width:110px" %)(((
330 -(((
331 331  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
332 -)))
333 333  
334 -(((
335 335  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
336 -)))
337 337  
338 -(((
339 339  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
340 -)))
341 341  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
342 342  
330 +
331 +
343 343  === 3.3.3 Configure read commands for each sampling ===
344 344  
345 345  (((
... ... @@ -948,29 +948,16 @@
948 948  
949 949  ==== **Manually trigger an Uplink** ====
950 950  
951 -(((
952 952  Ask device to send an uplink immediately.
953 -)))
954 954  
955 -* (((
956 -**AT Command:**
957 -)))
942 +* **AT Command:**
958 958  
959 -(((
960 960  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
961 -)))
962 962  
963 -(((
964 -
965 -)))
966 966  
967 -* (((
968 -**Downlink Payload:**
969 -)))
947 +* **Downlink Payload:**
970 970  
971 -(((
972 972  **0x08 FF**, RS485-LN will immediately send an uplink.
973 -)))
974 974  
975 975  
976 976  
... ... @@ -977,44 +977,25 @@
977 977  
978 978  ==== **Clear RS485 Command** ====
979 979  
980 -(((
981 981  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
982 -)))
983 983  
984 -* (((
985 -**AT Command:**
986 -)))
958 +* **AT Command:**
987 987  
988 -(((
989 989  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
990 -)))
991 991  
992 -(((
993 993  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
994 -)))
995 995  
996 -(((
997 997  Example screen shot after clear all RS485 commands. 
998 -)))
999 999  
1000 -(((
1001 -
1002 -)))
1003 1003  
1004 -(((
1005 1005  The uplink screen shot is:
1006 -)))
1007 1007  
1008 1008  [[image:1654160691922-496.png]]
1009 1009  
1010 1010  
1011 -* (((
1012 -**Downlink Payload:**
1013 -)))
972 +* **Downlink Payload:**
1014 1014  
1015 -(((
1016 1016  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1017 -)))
1018 1018  
1019 1019  
1020 1020  
... ... @@ -1021,195 +1021,102 @@
1021 1021  
1022 1022  ==== **Set Serial Communication Parameters** ====
1023 1023  
1024 -(((
1025 1025  Set the Rs485 serial communication parameters:
1026 -)))
1027 1027  
1028 -* (((
1029 -**AT Command:**
1030 -)))
983 +* **AT Command:**
1031 1031  
1032 -(((
1033 1033  Set Baud Rate:
1034 -)))
1035 1035  
1036 1036  (% class="box infomessage" %)
1037 1037  (((
1038 -(((
1039 1039  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1040 1040  )))
1041 -)))
1042 1042  
1043 -(((
1044 1044  Set UART Parity
1045 -)))
1046 1046  
1047 1047  (% class="box infomessage" %)
1048 1048  (((
1049 -(((
1050 1050  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1051 1051  )))
1052 -)))
1053 1053  
1054 -(((
1055 1055  Set STOPBIT
1056 -)))
1057 1057  
1058 1058  (% class="box infomessage" %)
1059 1059  (((
1060 -(((
1061 1061  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1062 1062  )))
1063 -)))
1064 1064  
1065 -(((
1066 -
1067 -)))
1068 1068  
1069 -* (((
1070 -**Downlink Payload:**
1071 -)))
1007 +* **Downlink Payload:**
1072 1072  
1073 -(((
1074 1074  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1075 -)))
1076 1076  
1077 -(((
1078 1078  **Example:**
1079 -)))
1080 1080  
1081 -* (((
1082 -A7 01 00 60   same as AT+BAUDR=9600
1083 -)))
1084 -* (((
1085 -A7 01 04 80  same as AT+BAUDR=115200
1086 -)))
1013 +* A7 01 00 60   same as AT+BAUDR=9600
1014 +* A7 01 04 80  same as AT+BAUDR=115200
1087 1087  
1088 -(((
1089 1089  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1090 -)))
1091 1091  
1092 -(((
1093 1093  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1094 -)))
1095 1095  
1096 1096  
1097 -
1098 -
1099 1099  == 3.6 Listening mode for RS485 network ==
1100 1100  
1101 -(((
1102 1102  This feature support since firmware v1.4
1103 -)))
1104 1104  
1105 -(((
1106 1106  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.
1107 -)))
1108 1108  
1109 1109  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1110 1110  
1111 -(((
1112 1112  To enable the listening mode, use can run the command AT+RXMODE.
1113 -)))
1114 1114  
1115 -(((
1116 -
1117 -)))
1118 1118  
1119 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1120 -|=(% style="width: 100px;" %)(((
1121 -**Command example**
1122 -)))|=(% style="width: 400px;" %)(((
1123 -**Function**
1124 -)))
1125 -|(% style="width:100px" %)(((
1126 -AT+RXMODE=1,10
1127 -)))|(% style="width:400px" %)(((
1128 -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.
1129 -)))
1130 -|(% style="width:100px" %)(((
1131 -AT+RXMODE=2,500
1132 -)))|(% style="width:400px" %)(((
1133 -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
1134 -)))
1135 -|(% style="width:100px" %)(((
1136 -AT+RXMODE=0,0
1137 -)))|(% style="width:400px" %)(((
1138 -Disable listening mode. This is the default settings.
1139 -)))
1140 -|(% style="width:100px" %)(((
1141 -
1142 -)))|(% style="width:400px" %)(((
1143 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1144 -)))
1032 +(% border="1" style="background-color:#ffffcc; width:500px" %)
1033 +|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1034 +|(% 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.
1035 +|(% 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
1036 +|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1037 +|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1145 1145  
1146 -(((
1147 1147  **Downlink Command:**
1148 -)))
1149 1149  
1150 -(((
1151 1151  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1152 -)))
1153 1153  
1154 -(((
1155 -
1156 -)))
1157 1157  
1158 -(((
1159 1159  **Example**:
1160 -)))
1161 1161  
1162 -(((
1163 1163  The RS485-LN is set to AT+RXMODE=2,1000
1164 -)))
1165 1165  
1166 -(((
1167 1167  There is a two Modbus commands in the RS485 network as below:
1168 -)))
1169 1169  
1170 -(((
1171 1171  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1172 -)))
1173 1173  
1174 -(((
1175 1175  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1176 -)))
1177 1177  
1178 -(((
1179 1179  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
1180 -)))
1181 1181  
1182 -(((
1183 1183  [[image:image-20220602171200-9.png]]
1184 -)))
1185 1185  
1186 -(((
1187 -
1188 -)))
1189 1189  
1190 -(((
1191 -(((
1192 1192  (% 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.
1193 -)))
1194 -)))
1195 1195  
1196 1196  
1197 1197  == 3.7 Buttons ==
1198 1198  
1199 1199  
1200 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1201 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1202 -|(% style="width:50px" %)**ACT**|(% style="width:350px" %)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**
1203 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1204 -|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1065 +(% border="1" style="background-color:#f7faff; width:500px" %)
1066 +|=**Button**|=(% style="width: 1420px;" %)**Feature**
1067 +|**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**
1068 +|**RST**|(% style="width:1420px" %)Reboot RS485
1069 +|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1205 1205  
1206 1206  == 3.8 LEDs ==
1207 1207  
1208 -
1209 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1210 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1073 +(% border="1" style="background-color:#f7faff; width:500px" %)
1074 +|=**LEDs**|=**Feature**
1211 1211  |**PWR**|Always on if there is power
1212 -|**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.
1076 +|**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.
1213 1213  
1214 1214  = 4. Case Study =
1215 1215  
... ... @@ -1220,26 +1220,19 @@
1220 1220  
1221 1221  == 5.1 Access AT Command ==
1222 1222  
1223 -(((
1224 1224  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.
1225 -)))
1226 1226  
1227 1227  [[image:1654162355560-817.png]]
1228 1228  
1229 1229  
1230 -(((
1231 1231  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:
1232 -)))
1233 1233  
1234 1234  [[image:1654162368066-342.png]]
1235 1235  
1236 1236  
1237 -(((
1238 1238  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/]]
1239 -)))
1240 1240  
1241 1241  
1242 -
1243 1243  == 5.2 Common AT Command Sequence ==
1244 1244  
1245 1245  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1262,9 +1262,7 @@
1262 1262  )))
1263 1263  
1264 1264  
1265 -(((
1266 1266  If device already joined network:
1267 -)))
1268 1268  
1269 1269  (% class="box infomessage" %)
1270 1270  (((
... ... @@ -1303,12 +1303,10 @@
1303 1303  
1304 1304  (% style="color:red" %)**Note:**
1305 1305  
1306 -(((
1307 1307  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1308 1308  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1309 1309  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.
1310 1310  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
1311 -)))
1312 1312  
1313 1313  [[image:1654162478620-421.png]]
1314 1314  
... ... @@ -1317,45 +1317,25 @@
1317 1317  
1318 1318  == 6.1 How to upgrade the image? ==
1319 1319  
1320 -(((
1321 1321  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1322 -)))
1323 1323  
1324 -* (((
1325 -Support new features
1326 -)))
1327 -* (((
1328 -For bug fix
1329 -)))
1330 -* (((
1331 -Change LoRaWAN bands.
1332 -)))
1175 +* Support new features
1176 +* For bug fix
1177 +* Change LoRaWAN bands.
1333 1333  
1334 -(((
1335 1335  Below shows the hardware connection for how to upload an image to RS485-LN:
1336 -)))
1337 1337  
1338 1338  [[image:1654162535040-878.png]]
1339 1339  
1340 -(((
1341 1341  **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]].
1342 -)))
1343 1343  
1344 -(((
1345 1345  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1346 -)))
1347 1347  
1348 -(((
1349 1349  **Step3: **Open flashloader; choose the correct COM port to update.
1350 -)))
1351 1351  
1352 1352  (((
1353 -(((
1354 -(((
1355 1355  (% 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.
1356 1356  )))
1357 -)))
1358 -)))
1359 1359  
1360 1360  
1361 1361  [[image:image-20220602175818-12.png]]
... ... @@ -1418,6 +1418,7 @@
1418 1418  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1419 1419  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1420 1420  
1254 +
1421 1421  = 9.Packing Info =
1422 1422  
1423 1423  
... ... @@ -1434,6 +1434,7 @@
1434 1434  * Package Size / pcs : 14.5 x 8 x 5 cm
1435 1435  * Weight / pcs : 170g
1436 1436  
1271 +
1437 1437  = 10. FCC Caution for RS485LN-US915 =
1438 1438  
1439 1439  (((

Applications

Navigation

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