Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 60.9 >
edited by Xiaoling
on 2022/06/14 11:15
To version < 58.19 >
edited by Xiaoling
on 2022/06/06 11:24
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -RS485-LN – RS485 to LoRaWAN Converter User Manual
1 +RS485-LN – RS485 to LoRaWAN Converter
Content
... ... @@ -3,6 +3,7 @@
3 3  
4 4  
5 5  
6 +**RS485-LN – RS485 to LoRaWAN Converter User Manual**
6 6  
7 7  
8 8  
... ... @@ -24,8 +24,6 @@
24 24  (((
25 25  (((
26 26  (((
27 -
28 -
29 29  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
30 30  )))
31 31  )))
... ... @@ -49,8 +49,6 @@
49 49  
50 50  (((
51 51  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
52 -
53 -
54 54  )))
55 55  )))
56 56  )))
... ... @@ -69,13 +69,11 @@
69 69  ** Idle: 32mA@12v
70 70  ** 20dB Transmit: 65mA@12v
71 71  
72 -
73 73  **Interface for Model:**
74 74  
75 75  * RS485
76 76  * Power Input 7~~ 24V DC. 
77 77  
78 -
79 79  **LoRa Spec:**
80 80  
81 81  * Frequency Range:
... ... @@ -97,8 +97,6 @@
97 97  * Automatic RF Sense and CAD with ultra-fast AFC.
98 98  * Packet engine up to 256 bytes with CRC
99 99  
100 -
101 -
102 102  == 1.3 Features ==
103 103  
104 104  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -111,7 +111,6 @@
111 111  * Support Interrupt uplink (Since hardware version v1.2)
112 112  
113 113  
114 -
115 115  == 1.4 Applications ==
116 116  
117 117  * Smart Buildings & Home Automation
... ... @@ -122,7 +122,6 @@
122 122  * Smart Factory
123 123  
124 124  
125 -
126 126  == 1.5 Firmware Change log ==
127 127  
128 128  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -191,13 +191,12 @@
191 191  
192 192  [[image:1653268227651-549.png||height="592" width="720"]]
193 193  
194 -
195 195  (((
196 196  The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
197 197  )))
198 198  
199 199  (((
200 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
190 +**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
201 201  )))
202 202  
203 203  (((
... ... @@ -207,7 +207,6 @@
207 207  
208 208  [[image:1652953462722-299.png]]
209 209  
210 -
211 211  (((
212 212  (((
213 213  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
... ... @@ -214,7 +214,7 @@
214 214  )))
215 215  
216 216  (((
217 -**Add APP EUI in the application.**
206 +Add APP EUI in the application.
218 218  )))
219 219  )))
220 220  
... ... @@ -230,15 +230,13 @@
230 230  
231 231  [[image:1652953542269-423.png||height="710" width="723"]]
232 232  
222 +Add APP KEY and DEV EUI
233 233  
234 -
235 -**Add APP KEY and DEV EUI**
236 -
237 237  [[image:1652953553383-907.png||height="514" width="724"]]
238 238  
239 239  
240 240  (((
241 -(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
228 +**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
242 242  )))
243 243  
244 244  [[image:1652953568895-172.png||height="232" width="724"]]
... ... @@ -248,15 +248,11 @@
248 248  
249 249  (((
250 250  (((
251 -(((
252 252  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.
253 253  )))
254 -)))
255 255  
256 256  (((
257 -(((
258 258  (% 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
259 -)))
260 260  
261 261  
262 262  )))
... ... @@ -326,7 +326,6 @@
326 326  
327 327  
328 328  
329 -
330 330  === 3.3.2 Configure sensors ===
331 331  
332 332  (((
... ... @@ -338,22 +338,15 @@
338 338  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
339 339  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
340 340  |AT+CFGDEV|(% style="width:110px" %)(((
341 -(((
342 342  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
343 -)))
344 344  
345 -(((
346 346  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
347 -)))
348 348  
349 -(((
350 350  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
351 -)))
352 352  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
353 353  
354 354  
355 355  
356 -
357 357  === 3.3.3 Configure read commands for each sampling ===
358 358  
359 359  (((
... ... @@ -424,7 +424,6 @@
424 424  
425 425  [[image:image-20220602153621-3.png]]
426 426  
427 -
428 428  
429 429  )))
430 430  
... ... @@ -533,7 +533,7 @@
533 533  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
534 534  
535 535  
536 -== 3.5 Configure RS485-LN via AT or Downlink ==
510 +== 3.5 Configure RS485-BL via AT or Downlink ==
537 537  
538 538  (((
539 539  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
... ... @@ -1113,118 +1113,60 @@
1113 1113  
1114 1114  == 3.6 Listening mode for RS485 network ==
1115 1115  
1116 -(((
1117 1117  This feature support since firmware v1.4
1118 -)))
1119 1119  
1120 -(((
1121 1121  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.
1122 -)))
1123 1123  
1124 1124  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1125 1125  
1126 -(((
1127 1127  To enable the listening mode, use can run the command AT+RXMODE.
1128 -)))
1129 1129  
1130 -(((
1131 -
1132 -)))
1133 1133  
1134 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1135 -|=(% style="width: 100px;" %)(((
1136 -**Command example**
1137 -)))|=(% style="width: 400px;" %)(((
1138 -**Function**
1139 -)))
1140 -|(% style="width:100px" %)(((
1141 -AT+RXMODE=1,10
1142 -)))|(% style="width:400px" %)(((
1143 -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.
1144 -)))
1145 -|(% style="width:100px" %)(((
1146 -AT+RXMODE=2,500
1147 -)))|(% style="width:400px" %)(((
1148 -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
1149 -)))
1150 -|(% style="width:100px" %)(((
1151 -AT+RXMODE=0,0
1152 -)))|(% style="width:400px" %)(((
1153 -Disable listening mode. This is the default settings.
1154 -)))
1155 -|(% style="width:100px" %)(((
1156 -
1157 -)))|(% style="width:400px" %)(((
1158 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1159 -)))
1099 +(% border="1" style="background-color:#ffffcc; width:500px" %)
1100 +|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1101 +|(% 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.
1102 +|(% 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
1103 +|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1104 +|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1160 1160  
1161 -(((
1162 1162  **Downlink Command:**
1163 -)))
1164 1164  
1165 -(((
1166 1166  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1167 -)))
1168 1168  
1169 -(((
1170 -
1171 -)))
1172 1172  
1173 -(((
1174 1174  **Example**:
1175 -)))
1176 1176  
1177 -(((
1178 1178  The RS485-LN is set to AT+RXMODE=2,1000
1179 -)))
1180 1180  
1181 -(((
1182 1182  There is a two Modbus commands in the RS485 network as below:
1183 -)))
1184 1184  
1185 -(((
1186 1186  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1187 -)))
1188 1188  
1189 -(((
1190 1190  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1191 -)))
1192 1192  
1193 -(((
1194 1194  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
1195 -)))
1196 1196  
1197 -(((
1198 1198  [[image:image-20220602171200-9.png]]
1199 -)))
1200 1200  
1201 -(((
1202 -
1203 -)))
1204 1204  
1205 -(((
1206 -(((
1207 1207  (% 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.
1208 -)))
1209 -)))
1210 1210  
1211 1211  
1212 1212  == 3.7 Buttons ==
1213 1213  
1214 1214  
1215 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1216 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1217 -|(% 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**
1218 -|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1219 -|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1132 +(% border="1" style="background-color:#f7faff; width:500px" %)
1133 +|=**Button**|=(% style="width: 1420px;" %)**Feature**
1134 +|**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**
1135 +|**RST**|(% style="width:1420px" %)Reboot RS485
1136 +|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1220 1220  
1221 1221  == 3.8 LEDs ==
1222 1222  
1223 -
1224 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1225 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1140 +(% border="1" style="background-color:#f7faff; width:500px" %)
1141 +|=**LEDs**|=**Feature**
1226 1226  |**PWR**|Always on if there is power
1227 -|**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.
1143 +|**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.
1228 1228  
1229 1229  = 4. Case Study =
1230 1230  
... ... @@ -1235,26 +1235,19 @@
1235 1235  
1236 1236  == 5.1 Access AT Command ==
1237 1237  
1238 -(((
1239 1239  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.
1240 -)))
1241 1241  
1242 1242  [[image:1654162355560-817.png]]
1243 1243  
1244 1244  
1245 -(((
1246 1246  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:
1247 -)))
1248 1248  
1249 1249  [[image:1654162368066-342.png]]
1250 1250  
1251 1251  
1252 -(((
1253 1253  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/]]
1254 -)))
1255 1255  
1256 1256  
1257 -
1258 1258  == 5.2 Common AT Command Sequence ==
1259 1259  
1260 1260  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1277,9 +1277,7 @@
1277 1277  )))
1278 1278  
1279 1279  
1280 -(((
1281 1281  If device already joined network:
1282 -)))
1283 1283  
1284 1284  (% class="box infomessage" %)
1285 1285  (((
... ... @@ -1318,12 +1318,10 @@
1318 1318  
1319 1319  (% style="color:red" %)**Note:**
1320 1320  
1321 -(((
1322 1322  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1323 1323  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1324 1324  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.
1325 1325  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
1326 -)))
1327 1327  
1328 1328  [[image:1654162478620-421.png]]
1329 1329  
... ... @@ -1332,45 +1332,25 @@
1332 1332  
1333 1333  == 6.1 How to upgrade the image? ==
1334 1334  
1335 -(((
1336 1336  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1337 -)))
1338 1338  
1339 -* (((
1340 -Support new features
1341 -)))
1342 -* (((
1343 -For bug fix
1344 -)))
1345 -* (((
1346 -Change LoRaWAN bands.
1347 -)))
1242 +* Support new features
1243 +* For bug fix
1244 +* Change LoRaWAN bands.
1348 1348  
1349 -(((
1350 1350  Below shows the hardware connection for how to upload an image to RS485-LN:
1351 -)))
1352 1352  
1353 1353  [[image:1654162535040-878.png]]
1354 1354  
1355 -(((
1356 1356  **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]].
1357 -)))
1358 1358  
1359 -(((
1360 1360  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1361 -)))
1362 1362  
1363 -(((
1364 1364  **Step3: **Open flashloader; choose the correct COM port to update.
1365 -)))
1366 1366  
1367 1367  (((
1368 -(((
1369 -(((
1370 1370  (% 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.
1371 1371  )))
1372 -)))
1373 -)))
1374 1374  
1375 1375  
1376 1376  [[image:image-20220602175818-12.png]]
... ... @@ -1433,6 +1433,7 @@
1433 1433  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1434 1434  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1435 1435  
1321 +
1436 1436  = 9.Packing Info =
1437 1437  
1438 1438  
... ... @@ -1449,6 +1449,7 @@
1449 1449  * Package Size / pcs : 14.5 x 8 x 5 cm
1450 1450  * Weight / pcs : 170g
1451 1451  
1338 +
1452 1452  = 10. FCC Caution for RS485LN-US915 =
1453 1453  
1454 1454  (((

Applications

Navigation

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