Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 59.3 >
edited by Xiaoling
on 2022/06/06 14:20
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
... ... @@ -116,6 +116,7 @@
116 116  * Smart Cities
117 117  * Smart Factory
118 118  
116 +
119 119  == 1.5 Firmware Change log ==
120 120  
121 121  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -237,15 +237,11 @@
237 237  
238 238  (((
239 239  (((
240 -(((
241 241  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.
242 242  )))
243 -)))
244 244  
245 245  (((
246 -(((
247 247  (% 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
248 -)))
249 249  
250 250  
251 251  )))
... ... @@ -313,6 +313,8 @@
313 313  )))
314 314  )))
315 315  
310 +
311 +
316 316  === 3.3.2 Configure sensors ===
317 317  
318 318  (((
... ... @@ -324,19 +324,15 @@
324 324  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
325 325  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
326 326  |AT+CFGDEV|(% style="width:110px" %)(((
327 -(((
328 328  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
329 -)))
330 330  
331 -(((
332 332  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
333 -)))
334 334  
335 -(((
336 336  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
337 -)))
338 338  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
339 339  
330 +
331 +
340 340  === 3.3.3 Configure read commands for each sampling ===
341 341  
342 342  (((
... ... @@ -945,29 +945,16 @@
945 945  
946 946  ==== **Manually trigger an Uplink** ====
947 947  
948 -(((
949 949  Ask device to send an uplink immediately.
950 -)))
951 951  
952 -* (((
953 -**AT Command:**
954 -)))
942 +* **AT Command:**
955 955  
956 -(((
957 957  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
958 -)))
959 959  
960 -(((
961 -
962 -)))
963 963  
964 -* (((
965 -**Downlink Payload:**
966 -)))
947 +* **Downlink Payload:**
967 967  
968 -(((
969 969  **0x08 FF**, RS485-LN will immediately send an uplink.
970 -)))
971 971  
972 972  
973 973  
... ... @@ -974,44 +974,25 @@
974 974  
975 975  ==== **Clear RS485 Command** ====
976 976  
977 -(((
978 978  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
979 -)))
980 980  
981 -* (((
982 -**AT Command:**
983 -)))
958 +* **AT Command:**
984 984  
985 -(((
986 986  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
987 -)))
988 988  
989 -(((
990 990  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
991 -)))
992 992  
993 -(((
994 994  Example screen shot after clear all RS485 commands. 
995 -)))
996 996  
997 -(((
998 -
999 -)))
1000 1000  
1001 -(((
1002 1002  The uplink screen shot is:
1003 -)))
1004 1004  
1005 1005  [[image:1654160691922-496.png]]
1006 1006  
1007 1007  
1008 -* (((
1009 -**Downlink Payload:**
1010 -)))
972 +* **Downlink Payload:**
1011 1011  
1012 -(((
1013 1013  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1014 -)))
1015 1015  
1016 1016  
1017 1017  
... ... @@ -1018,195 +1018,102 @@
1018 1018  
1019 1019  ==== **Set Serial Communication Parameters** ====
1020 1020  
1021 -(((
1022 1022  Set the Rs485 serial communication parameters:
1023 -)))
1024 1024  
1025 -* (((
1026 -**AT Command:**
1027 -)))
983 +* **AT Command:**
1028 1028  
1029 -(((
1030 1030  Set Baud Rate:
1031 -)))
1032 1032  
1033 1033  (% class="box infomessage" %)
1034 1034  (((
1035 -(((
1036 1036  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1037 1037  )))
1038 -)))
1039 1039  
1040 -(((
1041 1041  Set UART Parity
1042 -)))
1043 1043  
1044 1044  (% class="box infomessage" %)
1045 1045  (((
1046 -(((
1047 1047  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1048 1048  )))
1049 -)))
1050 1050  
1051 -(((
1052 1052  Set STOPBIT
1053 -)))
1054 1054  
1055 1055  (% class="box infomessage" %)
1056 1056  (((
1057 -(((
1058 1058  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1059 1059  )))
1060 -)))
1061 1061  
1062 -(((
1063 -
1064 -)))
1065 1065  
1066 -* (((
1067 -**Downlink Payload:**
1068 -)))
1007 +* **Downlink Payload:**
1069 1069  
1070 -(((
1071 1071  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1072 -)))
1073 1073  
1074 -(((
1075 1075  **Example:**
1076 -)))
1077 1077  
1078 -* (((
1079 -A7 01 00 60   same as AT+BAUDR=9600
1080 -)))
1081 -* (((
1082 -A7 01 04 80  same as AT+BAUDR=115200
1083 -)))
1013 +* A7 01 00 60   same as AT+BAUDR=9600
1014 +* A7 01 04 80  same as AT+BAUDR=115200
1084 1084  
1085 -(((
1086 1086  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1087 -)))
1088 1088  
1089 -(((
1090 1090  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1091 -)))
1092 1092  
1093 1093  
1094 -
1095 -
1096 1096  == 3.6 Listening mode for RS485 network ==
1097 1097  
1098 -(((
1099 1099  This feature support since firmware v1.4
1100 -)))
1101 1101  
1102 -(((
1103 1103  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.
1104 -)))
1105 1105  
1106 1106  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1107 1107  
1108 -(((
1109 1109  To enable the listening mode, use can run the command AT+RXMODE.
1110 -)))
1111 1111  
1112 -(((
1113 -
1114 -)))
1115 1115  
1116 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1117 -|=(% style="width: 100px;" %)(((
1118 -**Command example**
1119 -)))|=(% style="width: 400px;" %)(((
1120 -**Function**
1121 -)))
1122 -|(% style="width:100px" %)(((
1123 -AT+RXMODE=1,10
1124 -)))|(% style="width:400px" %)(((
1125 -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.
1126 -)))
1127 -|(% style="width:100px" %)(((
1128 -AT+RXMODE=2,500
1129 -)))|(% style="width:400px" %)(((
1130 -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
1131 -)))
1132 -|(% style="width:100px" %)(((
1133 -AT+RXMODE=0,0
1134 -)))|(% style="width:400px" %)(((
1135 -Disable listening mode. This is the default settings.
1136 -)))
1137 -|(% style="width:100px" %)(((
1138 -
1139 -)))|(% style="width:400px" %)(((
1140 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1141 -)))
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)
1142 1142  
1143 -(((
1144 1144  **Downlink Command:**
1145 -)))
1146 1146  
1147 -(((
1148 1148  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1149 -)))
1150 1150  
1151 -(((
1152 -
1153 -)))
1154 1154  
1155 -(((
1156 1156  **Example**:
1157 -)))
1158 1158  
1159 -(((
1160 1160  The RS485-LN is set to AT+RXMODE=2,1000
1161 -)))
1162 1162  
1163 -(((
1164 1164  There is a two Modbus commands in the RS485 network as below:
1165 -)))
1166 1166  
1167 -(((
1168 1168  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1169 -)))
1170 1170  
1171 -(((
1172 1172  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1173 -)))
1174 1174  
1175 -(((
1176 1176  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
1177 -)))
1178 1178  
1179 -(((
1180 1180  [[image:image-20220602171200-9.png]]
1181 -)))
1182 1182  
1183 -(((
1184 -
1185 -)))
1186 1186  
1187 -(((
1188 -(((
1189 1189  (% 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.
1190 -)))
1191 -)))
1192 1192  
1193 1193  
1194 1194  == 3.7 Buttons ==
1195 1195  
1196 1196  
1197 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1198 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1199 -|(% 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**
1200 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1201 -|(% 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"]]
1202 1202  
1203 1203  == 3.8 LEDs ==
1204 1204  
1205 -
1206 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1207 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1073 +(% border="1" style="background-color:#f7faff; width:500px" %)
1074 +|=**LEDs**|=**Feature**
1208 1208  |**PWR**|Always on if there is power
1209 -|**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.
1210 1210  
1211 1211  = 4. Case Study =
1212 1212  
... ... @@ -1217,26 +1217,19 @@
1217 1217  
1218 1218  == 5.1 Access AT Command ==
1219 1219  
1220 -(((
1221 1221  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.
1222 -)))
1223 1223  
1224 1224  [[image:1654162355560-817.png]]
1225 1225  
1226 1226  
1227 -(((
1228 1228  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:
1229 -)))
1230 1230  
1231 1231  [[image:1654162368066-342.png]]
1232 1232  
1233 1233  
1234 -(((
1235 1235  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/]]
1236 -)))
1237 1237  
1238 1238  
1239 -
1240 1240  == 5.2 Common AT Command Sequence ==
1241 1241  
1242 1242  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1259,9 +1259,7 @@
1259 1259  )))
1260 1260  
1261 1261  
1262 -(((
1263 1263  If device already joined network:
1264 -)))
1265 1265  
1266 1266  (% class="box infomessage" %)
1267 1267  (((
... ... @@ -1300,12 +1300,10 @@
1300 1300  
1301 1301  (% style="color:red" %)**Note:**
1302 1302  
1303 -(((
1304 1304  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1305 1305  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1306 1306  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.
1307 1307  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
1308 -)))
1309 1309  
1310 1310  [[image:1654162478620-421.png]]
1311 1311  
... ... @@ -1314,45 +1314,25 @@
1314 1314  
1315 1315  == 6.1 How to upgrade the image? ==
1316 1316  
1317 -(((
1318 1318  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1319 -)))
1320 1320  
1321 -* (((
1322 -Support new features
1323 -)))
1324 -* (((
1325 -For bug fix
1326 -)))
1327 -* (((
1328 -Change LoRaWAN bands.
1329 -)))
1175 +* Support new features
1176 +* For bug fix
1177 +* Change LoRaWAN bands.
1330 1330  
1331 -(((
1332 1332  Below shows the hardware connection for how to upload an image to RS485-LN:
1333 -)))
1334 1334  
1335 1335  [[image:1654162535040-878.png]]
1336 1336  
1337 -(((
1338 1338  **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]].
1339 -)))
1340 1340  
1341 -(((
1342 1342  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1343 -)))
1344 1344  
1345 -(((
1346 1346  **Step3: **Open flashloader; choose the correct COM port to update.
1347 -)))
1348 1348  
1349 1349  (((
1350 -(((
1351 -(((
1352 1352  (% 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.
1353 1353  )))
1354 -)))
1355 -)))
1356 1356  
1357 1357  
1358 1358  [[image:image-20220602175818-12.png]]
... ... @@ -1415,6 +1415,7 @@
1415 1415  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1416 1416  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1417 1417  
1254 +
1418 1418  = 9.Packing Info =
1419 1419  
1420 1420  
... ... @@ -1431,6 +1431,7 @@
1431 1431  * Package Size / pcs : 14.5 x 8 x 5 cm
1432 1432  * Weight / pcs : 170g
1433 1433  
1271 +
1434 1434  = 10. FCC Caution for RS485LN-US915 =
1435 1435  
1436 1436  (((

Applications

Navigation

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