Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.39 >
edited by Xiaoling
on 2022/06/06 12:01
To version < 60.13 >
edited by Xiaoling
on 2022/06/14 11:26
>
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
1 +RS485-LN – RS485 to LoRaWAN Converter User Manual
Content
... ... @@ -3,7 +3,6 @@
3 3  
4 4  
5 5  
6 -**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 9  
... ... @@ -25,6 +25,8 @@
25 25  (((
26 26  (((
27 27  (((
27 +
28 +
28 28  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.
29 29  )))
30 30  )))
... ... @@ -48,6 +48,8 @@
48 48  
49 49  (((
50 50  (% 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 +
51 51  )))
52 52  )))
53 53  )))
... ... @@ -92,6 +92,9 @@
92 92  * Automatic RF Sense and CAD with ultra-fast AFC.
93 93  * Packet engine up to 256 bytes with CRC
94 94  
98 +
99 +
100 +
95 95  == 1.3 Features ==
96 96  
97 97  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -180,12 +180,13 @@
180 180  
181 181  [[image:1653268227651-549.png||height="592" width="720"]]
182 182  
189 +
183 183  (((
184 184  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:
185 185  )))
186 186  
187 187  (((
188 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
195 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
189 189  )))
190 190  
191 191  (((
... ... @@ -195,6 +195,7 @@
195 195  
196 196  [[image:1652953462722-299.png]]
197 197  
205 +
198 198  (((
199 199  (((
200 200  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
... ... @@ -201,7 +201,7 @@
201 201  )))
202 202  
203 203  (((
204 -Add APP EUI in the application.
212 +**Add APP EUI in the application.**
205 205  )))
206 206  )))
207 207  
... ... @@ -217,13 +217,15 @@
217 217  
218 218  [[image:1652953542269-423.png||height="710" width="723"]]
219 219  
220 -Add APP KEY and DEV EUI
221 221  
229 +
230 +**Add APP KEY and DEV EUI**
231 +
222 222  [[image:1652953553383-907.png||height="514" width="724"]]
223 223  
224 224  
225 225  (((
226 -**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.
236 +(% 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.
227 227  )))
228 228  
229 229  [[image:1652953568895-172.png||height="232" width="724"]]
... ... @@ -233,11 +233,15 @@
233 233  
234 234  (((
235 235  (((
236 -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.
246 +(((
247 +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-LNviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
237 237  )))
249 +)))
238 238  
239 239  (((
252 +(((
240 240  (% 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
254 +)))
241 241  
242 242  
243 243  )))
... ... @@ -305,6 +305,7 @@
305 305  )))
306 306  )))
307 307  
322 +
308 308  === 3.3.2 Configure sensors ===
309 309  
310 310  (((
... ... @@ -316,13 +316,20 @@
316 316  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
317 317  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
318 318  |AT+CFGDEV|(% style="width:110px" %)(((
334 +(((
319 319  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
336 +)))
320 320  
338 +(((
321 321  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
340 +)))
322 322  
342 +(((
323 323  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
344 +)))
324 324  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
325 325  
347 +
326 326  === 3.3.3 Configure read commands for each sampling ===
327 327  
328 328  (((
... ... @@ -335,7 +335,7 @@
335 335  During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
336 336  
337 337  
338 -**Each RS485 commands include two parts:**
360 +(% style="color:#037691" %)**Each RS485 commands include two parts:**
339 339  
340 340  ~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
341 341  
... ... @@ -350,11 +350,11 @@
350 350  Below are examples for the how above AT Commands works.
351 351  
352 352  
353 -**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
375 +(% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
354 354  
355 355  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
356 356  |(% style="width:496px" %)(((
357 -**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
379 +(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
358 358  
359 359  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
360 360  
... ... @@ -366,7 +366,7 @@
366 366  In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
367 367  
368 368  
369 -**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
391 +(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
370 370  
371 371  (% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
372 372  |(% style="width:510px" %)(((
... ... @@ -379,20 +379,21 @@
379 379  
380 380  **Examples:**
381 381  
382 -* Grab bytes:
404 +* (% style="color:#037691" %)**Grab bytes**
383 383  
384 384  [[image:image-20220602153621-1.png]]
385 385  
386 386  
387 -* Grab a section.
409 +* (% style="color:#037691" %)**Grab a section**
388 388  
389 389  [[image:image-20220602153621-2.png]]
390 390  
391 391  
392 -* Grab different sections.
414 +* (% style="color:#037691" %)**Grab different sections**
393 393  
394 394  [[image:image-20220602153621-3.png]]
395 395  
418 +
396 396  
397 397  )))
398 398  
... ... @@ -501,7 +501,7 @@
501 501  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
502 502  
503 503  
504 -== 3.5 Configure RS485-BL via AT or Downlink ==
527 +== 3.5 Configure RS485-LN via AT or Downlink ==
505 505  
506 506  (((
507 507  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
... ... @@ -667,7 +667,7 @@
667 667  ==== **Set Payload version** ====
668 668  
669 669  (((
670 -This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
693 +This is the first byte of the uplink payload. RS485-LN can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
671 671  )))
672 672  
673 673  * (((
... ... @@ -765,7 +765,7 @@
765 765  XX XX XX XX: AT+COMMAND or AT+DATACUT command
766 766  )))
767 767  * (((
768 -YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
791 +YY:  If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
769 769  )))
770 770  
771 771  (((
... ... @@ -1100,29 +1100,29 @@
1100 1100  )))
1101 1101  
1102 1102  (% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1103 -|=(% style="width: 161px;" %)(((
1104 -**Command example:**
1105 -)))|=(% style="width: 337px;" %)(((
1126 +|=(% style="width: 100px;" %)(((
1127 +**Command example**
1128 +)))|=(% style="width: 400px;" %)(((
1106 1106  **Function**
1107 1107  )))
1108 -|(% style="width:161px" %)(((
1131 +|(% style="width:100px" %)(((
1109 1109  AT+RXMODE=1,10
1110 -)))|(% style="width:337px" %)(((
1133 +)))|(% style="width:400px" %)(((
1111 1111  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.
1112 1112  )))
1113 -|(% style="width:161px" %)(((
1136 +|(% style="width:100px" %)(((
1114 1114  AT+RXMODE=2,500
1115 -)))|(% style="width:337px" %)(((
1138 +)))|(% style="width:400px" %)(((
1116 1116  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
1117 1117  )))
1118 -|(% style="width:161px" %)(((
1141 +|(% style="width:100px" %)(((
1119 1119  AT+RXMODE=0,0
1120 -)))|(% style="width:337px" %)(((
1143 +)))|(% style="width:400px" %)(((
1121 1121  Disable listening mode. This is the default settings.
1122 1122  )))
1123 -|(% style="width:161px" %)(((
1146 +|(% style="width:100px" %)(((
1124 1124  
1125 -)))|(% style="width:337px" %)(((
1148 +)))|(% style="width:400px" %)(((
1126 1126  A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1127 1127  )))
1128 1128  
... ... @@ -1171,18 +1171,20 @@
1171 1171  )))
1172 1172  
1173 1173  (((
1197 +(((
1174 1174  (% 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.
1175 1175  )))
1200 +)))
1176 1176  
1177 1177  
1178 1178  == 3.7 Buttons ==
1179 1179  
1180 1180  
1181 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1182 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1183 -|(% 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**
1184 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1185 -|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1206 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1207 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1208 +|(% 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**
1209 +|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1210 +|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1186 1186  
1187 1187  == 3.8 LEDs ==
1188 1188  
... ... @@ -1192,7 +1192,6 @@
1192 1192  |**PWR**|Always on if there is power
1193 1193  |**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.
1194 1194  
1195 -
1196 1196  = 4. Case Study =
1197 1197  
1198 1198  User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
... ... @@ -1203,7 +1203,7 @@
1203 1203  == 5.1 Access AT Command ==
1204 1204  
1205 1205  (((
1206 -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.
1230 +RS485-LN supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-LN to use AT command, as below.
1207 1207  )))
1208 1208  
1209 1209  [[image:1654162355560-817.png]]
... ... @@ -1210,7 +1210,7 @@
1210 1210  
1211 1211  
1212 1212  (((
1213 -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:
1237 +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-LN. The default password is 123456. Below is the output for reference:
1214 1214  )))
1215 1215  
1216 1216  [[image:1654162368066-342.png]]
... ... @@ -1244,7 +1244,9 @@
1244 1244  )))
1245 1245  
1246 1246  
1271 +(((
1247 1247  If device already joined network:
1273 +)))
1248 1248  
1249 1249  (% class="box infomessage" %)
1250 1250  (((
... ... @@ -1283,10 +1283,12 @@
1283 1283  
1284 1284  (% style="color:red" %)**Note:**
1285 1285  
1312 +(((
1286 1286  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1287 1287  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1288 1288  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.
1289 1289  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
1317 +)))
1290 1290  
1291 1291  [[image:1654162478620-421.png]]
1292 1292  
... ... @@ -1315,17 +1315,25 @@
1315 1315  
1316 1316  [[image:1654162535040-878.png]]
1317 1317  
1346 +(((
1318 1318  **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]].
1348 +)))
1319 1319  
1350 +(((
1320 1320  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1352 +)))
1321 1321  
1354 +(((
1322 1322  **Step3: **Open flashloader; choose the correct COM port to update.
1356 +)))
1323 1323  
1324 1324  (((
1325 1325  (((
1360 +(((
1326 1326  (% 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.
1327 1327  )))
1328 1328  )))
1364 +)))
1329 1329  
1330 1330  
1331 1331  [[image:image-20220602175818-12.png]]
... ... @@ -1347,9 +1347,9 @@
1347 1347  User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1348 1348  
1349 1349  
1350 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1386 +== 6.3 How many RS485-Slave can RS485-LN connects? ==
1351 1351  
1352 -The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1388 +The RS485-LN can support max 32 RS485 devices. Each uplink command of RS485-LN can support max 16 different RS485 command. So RS485-LN can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1353 1353  
1354 1354  
1355 1355  == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==

Applications

Navigation

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