Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 59.2 >
edited by Xiaoling
on 2022/06/06 14:20
To version < 58.17 >
edited by Xiaoling
on 2022/06/06 11:23
>
Change comment: There is no comment for this version

Summary

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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)
... ... @@ -105,6 +105,7 @@
105 105  * Support Modbus protocol
106 106  * Support Interrupt uplink (Since hardware version v1.2)
107 107  
106 +
108 108  == 1.4 Applications ==
109 109  
110 110  * Smart Buildings & Home Automation
... ... @@ -114,6 +114,7 @@
114 114  * Smart Cities
115 115  * Smart Factory
116 116  
116 +
117 117  == 1.5 Firmware Change log ==
118 118  
119 119  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -235,15 +235,11 @@
235 235  
236 236  (((
237 237  (((
238 -(((
239 239  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.
240 240  )))
241 -)))
242 242  
243 243  (((
244 -(((
245 245  (% 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
246 -)))
247 247  
248 248  
249 249  )))
... ... @@ -311,6 +311,8 @@
311 311  )))
312 312  )))
313 313  
310 +
311 +
314 314  === 3.3.2 Configure sensors ===
315 315  
316 316  (((
... ... @@ -322,19 +322,15 @@
322 322  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
323 323  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
324 324  |AT+CFGDEV|(% style="width:110px" %)(((
325 -(((
326 326  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
327 -)))
328 328  
329 -(((
330 330  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
331 -)))
332 332  
333 -(((
334 334  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
335 -)))
336 336  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
337 337  
330 +
331 +
338 338  === 3.3.3 Configure read commands for each sampling ===
339 339  
340 340  (((
... ... @@ -1003,13 +1003,9 @@
1003 1003  [[image:1654160691922-496.png]]
1004 1004  
1005 1005  
1006 -* (((
1007 -**Downlink Payload:**
1008 -)))
1000 +* **Downlink Payload:**
1009 1009  
1010 -(((
1011 1011  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1012 -)))
1013 1013  
1014 1014  
1015 1015  
... ... @@ -1016,195 +1016,102 @@
1016 1016  
1017 1017  ==== **Set Serial Communication Parameters** ====
1018 1018  
1019 -(((
1020 1020  Set the Rs485 serial communication parameters:
1021 -)))
1022 1022  
1023 -* (((
1024 -**AT Command:**
1025 -)))
1011 +* **AT Command:**
1026 1026  
1027 -(((
1028 1028  Set Baud Rate:
1029 -)))
1030 1030  
1031 1031  (% class="box infomessage" %)
1032 1032  (((
1033 -(((
1034 1034  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1035 1035  )))
1036 -)))
1037 1037  
1038 -(((
1039 1039  Set UART Parity
1040 -)))
1041 1041  
1042 1042  (% class="box infomessage" %)
1043 1043  (((
1044 -(((
1045 1045  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1046 1046  )))
1047 -)))
1048 1048  
1049 -(((
1050 1050  Set STOPBIT
1051 -)))
1052 1052  
1053 1053  (% class="box infomessage" %)
1054 1054  (((
1055 -(((
1056 1056  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1057 1057  )))
1058 -)))
1059 1059  
1060 -(((
1061 -
1062 -)))
1063 1063  
1064 -* (((
1065 -**Downlink Payload:**
1066 -)))
1035 +* **Downlink Payload:**
1067 1067  
1068 -(((
1069 1069  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1070 -)))
1071 1071  
1072 -(((
1073 1073  **Example:**
1074 -)))
1075 1075  
1076 -* (((
1077 -A7 01 00 60   same as AT+BAUDR=9600
1078 -)))
1079 -* (((
1080 -A7 01 04 80  same as AT+BAUDR=115200
1081 -)))
1041 +* A7 01 00 60   same as AT+BAUDR=9600
1042 +* A7 01 04 80  same as AT+BAUDR=115200
1082 1082  
1083 -(((
1084 1084  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1085 -)))
1086 1086  
1087 -(((
1088 1088  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1089 -)))
1090 1090  
1091 1091  
1092 -
1093 -
1094 1094  == 3.6 Listening mode for RS485 network ==
1095 1095  
1096 -(((
1097 1097  This feature support since firmware v1.4
1098 -)))
1099 1099  
1100 -(((
1101 1101  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.
1102 -)))
1103 1103  
1104 1104  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1105 1105  
1106 -(((
1107 1107  To enable the listening mode, use can run the command AT+RXMODE.
1108 -)))
1109 1109  
1110 -(((
1111 -
1112 -)))
1113 1113  
1114 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1115 -|=(% style="width: 100px;" %)(((
1116 -**Command example**
1117 -)))|=(% style="width: 400px;" %)(((
1118 -**Function**
1119 -)))
1120 -|(% style="width:100px" %)(((
1121 -AT+RXMODE=1,10
1122 -)))|(% style="width:400px" %)(((
1123 -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.
1124 -)))
1125 -|(% style="width:100px" %)(((
1126 -AT+RXMODE=2,500
1127 -)))|(% style="width:400px" %)(((
1128 -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
1129 -)))
1130 -|(% style="width:100px" %)(((
1131 -AT+RXMODE=0,0
1132 -)))|(% style="width:400px" %)(((
1133 -Disable listening mode. This is the default settings.
1134 -)))
1135 -|(% style="width:100px" %)(((
1136 -
1137 -)))|(% style="width:400px" %)(((
1138 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1139 -)))
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)
1140 1140  
1141 -(((
1142 1142  **Downlink Command:**
1143 -)))
1144 1144  
1145 -(((
1146 1146  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1147 -)))
1148 1148  
1149 -(((
1150 -
1151 -)))
1152 1152  
1153 -(((
1154 1154  **Example**:
1155 -)))
1156 1156  
1157 -(((
1158 1158  The RS485-LN is set to AT+RXMODE=2,1000
1159 -)))
1160 1160  
1161 -(((
1162 1162  There is a two Modbus commands in the RS485 network as below:
1163 -)))
1164 1164  
1165 -(((
1166 1166  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1167 -)))
1168 1168  
1169 -(((
1170 1170  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1171 -)))
1172 1172  
1173 -(((
1174 1174  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
1175 -)))
1176 1176  
1177 -(((
1178 1178  [[image:image-20220602171200-9.png]]
1179 -)))
1180 1180  
1181 -(((
1182 -
1183 -)))
1184 1184  
1185 -(((
1186 -(((
1187 1187  (% 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.
1188 -)))
1189 -)))
1190 1190  
1191 1191  
1192 1192  == 3.7 Buttons ==
1193 1193  
1194 1194  
1195 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1196 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1197 -|(% 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**
1198 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1199 -|(% style="width:50px" %)**PRO**|(% style="width:350px" %)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"]]
1200 1200  
1201 1201  == 3.8 LEDs ==
1202 1202  
1203 -
1204 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1205 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1101 +(% border="1" style="background-color:#f7faff; width:500px" %)
1102 +|=**LEDs**|=**Feature**
1206 1206  |**PWR**|Always on if there is power
1207 -|**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.
1208 1208  
1209 1209  = 4. Case Study =
1210 1210  
... ... @@ -1215,26 +1215,19 @@
1215 1215  
1216 1216  == 5.1 Access AT Command ==
1217 1217  
1218 -(((
1219 1219  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.
1220 -)))
1221 1221  
1222 1222  [[image:1654162355560-817.png]]
1223 1223  
1224 1224  
1225 -(((
1226 1226  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:
1227 -)))
1228 1228  
1229 1229  [[image:1654162368066-342.png]]
1230 1230  
1231 1231  
1232 -(((
1233 1233  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/]]
1234 -)))
1235 1235  
1236 1236  
1237 -
1238 1238  == 5.2 Common AT Command Sequence ==
1239 1239  
1240 1240  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1257,9 +1257,7 @@
1257 1257  )))
1258 1258  
1259 1259  
1260 -(((
1261 1261  If device already joined network:
1262 -)))
1263 1263  
1264 1264  (% class="box infomessage" %)
1265 1265  (((
... ... @@ -1298,12 +1298,10 @@
1298 1298  
1299 1299  (% style="color:red" %)**Note:**
1300 1300  
1301 -(((
1302 1302  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1303 1303  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1304 1304  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.
1305 1305  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
1306 -)))
1307 1307  
1308 1308  [[image:1654162478620-421.png]]
1309 1309  
... ... @@ -1312,45 +1312,25 @@
1312 1312  
1313 1313  == 6.1 How to upgrade the image? ==
1314 1314  
1315 -(((
1316 1316  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1317 -)))
1318 1318  
1319 -* (((
1320 -Support new features
1321 -)))
1322 -* (((
1323 -For bug fix
1324 -)))
1325 -* (((
1326 -Change LoRaWAN bands.
1327 -)))
1203 +* Support new features
1204 +* For bug fix
1205 +* Change LoRaWAN bands.
1328 1328  
1329 -(((
1330 1330  Below shows the hardware connection for how to upload an image to RS485-LN:
1331 -)))
1332 1332  
1333 1333  [[image:1654162535040-878.png]]
1334 1334  
1335 -(((
1336 1336  **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]].
1337 -)))
1338 1338  
1339 -(((
1340 1340  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1341 -)))
1342 1342  
1343 -(((
1344 1344  **Step3: **Open flashloader; choose the correct COM port to update.
1345 -)))
1346 1346  
1347 1347  (((
1348 -(((
1349 -(((
1350 1350  (% 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.
1351 1351  )))
1352 -)))
1353 -)))
1354 1354  
1355 1355  
1356 1356  [[image:image-20220602175818-12.png]]
... ... @@ -1413,6 +1413,7 @@
1413 1413  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1414 1414  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1415 1415  
1282 +
1416 1416  = 9.Packing Info =
1417 1417  
1418 1418  
... ... @@ -1429,6 +1429,7 @@
1429 1429  * Package Size / pcs : 14.5 x 8 x 5 cm
1430 1430  * Weight / pcs : 170g
1431 1431  
1299 +
1432 1432  = 10. FCC Caution for RS485LN-US915 =
1433 1433  
1434 1434  (((

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