Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 60.8 >
edited by Xiaoling
on 2022/06/14 11:14
To version < 58.18 >
edited by Xiaoling
on 2022/06/06 11:23
>
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  (((
... ... @@ -1108,122 +1108,62 @@
1108 1108  )))
1109 1109  
1110 1110  
1111 -
1112 -
1113 1113  == 3.6 Listening mode for RS485 network ==
1114 1114  
1115 -(((
1116 1116  This feature support since firmware v1.4
1117 -)))
1118 1118  
1119 -(((
1120 1120  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.
1121 -)))
1122 1122  
1123 1123  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1124 1124  
1125 -(((
1126 1126  To enable the listening mode, use can run the command AT+RXMODE.
1127 -)))
1128 1128  
1129 -(((
1130 -
1131 -)))
1132 1132  
1133 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1134 -|=(% style="width: 100px;" %)(((
1135 -**Command example**
1136 -)))|=(% style="width: 400px;" %)(((
1137 -**Function**
1138 -)))
1139 -|(% style="width:100px" %)(((
1140 -AT+RXMODE=1,10
1141 -)))|(% style="width:400px" %)(((
1142 -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.
1143 -)))
1144 -|(% style="width:100px" %)(((
1145 -AT+RXMODE=2,500
1146 -)))|(% style="width:400px" %)(((
1147 -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
1148 -)))
1149 -|(% style="width:100px" %)(((
1150 -AT+RXMODE=0,0
1151 -)))|(% style="width:400px" %)(((
1152 -Disable listening mode. This is the default settings.
1153 -)))
1154 -|(% style="width:100px" %)(((
1155 -
1156 -)))|(% style="width:400px" %)(((
1157 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1158 -)))
1097 +(% border="1" style="background-color:#ffffcc; width:500px" %)
1098 +|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1099 +|(% 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.
1100 +|(% 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
1101 +|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1102 +|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1159 1159  
1160 -(((
1161 1161  **Downlink Command:**
1162 -)))
1163 1163  
1164 -(((
1165 1165  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1166 -)))
1167 1167  
1168 -(((
1169 -
1170 -)))
1171 1171  
1172 -(((
1173 1173  **Example**:
1174 -)))
1175 1175  
1176 -(((
1177 1177  The RS485-LN is set to AT+RXMODE=2,1000
1178 -)))
1179 1179  
1180 -(((
1181 1181  There is a two Modbus commands in the RS485 network as below:
1182 -)))
1183 1183  
1184 -(((
1185 1185  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1186 -)))
1187 1187  
1188 -(((
1189 1189  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1190 -)))
1191 1191  
1192 -(((
1193 1193  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
1194 -)))
1195 1195  
1196 -(((
1197 1197  [[image:image-20220602171200-9.png]]
1198 -)))
1199 1199  
1200 -(((
1201 -
1202 -)))
1203 1203  
1204 -(((
1205 -(((
1206 1206  (% 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.
1207 -)))
1208 -)))
1209 1209  
1210 1210  
1211 1211  == 3.7 Buttons ==
1212 1212  
1213 1213  
1214 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1215 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1216 -|(% 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**
1217 -|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1218 -|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1130 +(% border="1" style="background-color:#f7faff; width:500px" %)
1131 +|=**Button**|=(% style="width: 1420px;" %)**Feature**
1132 +|**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**
1133 +|**RST**|(% style="width:1420px" %)Reboot RS485
1134 +|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1219 1219  
1220 1220  == 3.8 LEDs ==
1221 1221  
1222 -
1223 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1224 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1138 +(% border="1" style="background-color:#f7faff; width:500px" %)
1139 +|=**LEDs**|=**Feature**
1225 1225  |**PWR**|Always on if there is power
1226 -|**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.
1141 +|**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.
1227 1227  
1228 1228  = 4. Case Study =
1229 1229  
... ... @@ -1234,26 +1234,19 @@
1234 1234  
1235 1235  == 5.1 Access AT Command ==
1236 1236  
1237 -(((
1238 1238  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.
1239 -)))
1240 1240  
1241 1241  [[image:1654162355560-817.png]]
1242 1242  
1243 1243  
1244 -(((
1245 1245  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:
1246 -)))
1247 1247  
1248 1248  [[image:1654162368066-342.png]]
1249 1249  
1250 1250  
1251 -(((
1252 1252  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/]]
1253 -)))
1254 1254  
1255 1255  
1256 -
1257 1257  == 5.2 Common AT Command Sequence ==
1258 1258  
1259 1259  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1276,9 +1276,7 @@
1276 1276  )))
1277 1277  
1278 1278  
1279 -(((
1280 1280  If device already joined network:
1281 -)))
1282 1282  
1283 1283  (% class="box infomessage" %)
1284 1284  (((
... ... @@ -1317,12 +1317,10 @@
1317 1317  
1318 1318  (% style="color:red" %)**Note:**
1319 1319  
1320 -(((
1321 1321  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1322 1322  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1323 1323  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.
1324 1324  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
1325 -)))
1326 1326  
1327 1327  [[image:1654162478620-421.png]]
1328 1328  
... ... @@ -1331,45 +1331,25 @@
1331 1331  
1332 1332  == 6.1 How to upgrade the image? ==
1333 1333  
1334 -(((
1335 1335  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1336 -)))
1337 1337  
1338 -* (((
1339 -Support new features
1340 -)))
1341 -* (((
1342 -For bug fix
1343 -)))
1344 -* (((
1345 -Change LoRaWAN bands.
1346 -)))
1240 +* Support new features
1241 +* For bug fix
1242 +* Change LoRaWAN bands.
1347 1347  
1348 -(((
1349 1349  Below shows the hardware connection for how to upload an image to RS485-LN:
1350 -)))
1351 1351  
1352 1352  [[image:1654162535040-878.png]]
1353 1353  
1354 -(((
1355 1355  **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]].
1356 -)))
1357 1357  
1358 -(((
1359 1359  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1360 -)))
1361 1361  
1362 -(((
1363 1363  **Step3: **Open flashloader; choose the correct COM port to update.
1364 -)))
1365 1365  
1366 1366  (((
1367 -(((
1368 -(((
1369 1369  (% 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.
1370 1370  )))
1371 -)))
1372 -)))
1373 1373  
1374 1374  
1375 1375  [[image:image-20220602175818-12.png]]
... ... @@ -1432,6 +1432,7 @@
1432 1432  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1433 1433  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1434 1434  
1319 +
1435 1435  = 9.Packing Info =
1436 1436  
1437 1437  
... ... @@ -1448,6 +1448,7 @@
1448 1448  * Package Size / pcs : 14.5 x 8 x 5 cm
1449 1449  * Weight / pcs : 170g
1450 1450  
1336 +
1451 1451  = 10. FCC Caution for RS485LN-US915 =
1452 1452  
1453 1453  (((

Applications

Navigation

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