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Title
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1 -RS485-LN – RS485 to LoRaWAN Converter User Manual
1 +RS485-LN – RS485 to LoRaWAN Converter
Content
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3 3  
4 4  
5 5  
6 +**RS485-LN – RS485 to LoRaWAN Converter User Manual**
6 6  
7 7  
8 8  
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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  )))
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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  )))
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189 189  
190 190  [[image:1653268227651-549.png||height="592" width="720"]]
191 191  
192 -
193 193  (((
194 194  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:
195 195  )))
196 196  
197 197  (((
198 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
194 +**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
199 199  )))
200 200  
201 201  (((
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205 205  
206 206  [[image:1652953462722-299.png]]
207 207  
208 -
209 209  (((
210 210  (((
211 211  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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212 212  )))
213 213  
214 214  (((
215 -**Add APP EUI in the application.**
210 +Add APP EUI in the application.
216 216  )))
217 217  )))
218 218  
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228 228  
229 229  [[image:1652953542269-423.png||height="710" width="723"]]
230 230  
226 +Add APP KEY and DEV EUI
231 231  
232 -
233 -**Add APP KEY and DEV EUI**
234 -
235 235  [[image:1652953553383-907.png||height="514" width="724"]]
236 236  
237 237  
238 238  (((
239 -(% 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.
232 +**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.
240 240  )))
241 241  
242 242  [[image:1652953568895-172.png||height="232" width="724"]]
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247 247  (((
248 248  (((
249 249  (((
250 -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.
243 +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.
251 251  )))
252 252  )))
253 253  
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324 324  
325 325  
326 326  
327 -
328 328  === 3.3.2 Configure sensors ===
329 329  
330 330  (((
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349 349  )))
350 350  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
351 351  
344 +
345 +
352 352  === 3.3.3 Configure read commands for each sampling ===
353 353  
354 354  (((
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361 361  During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
362 362  
363 363  
364 -(% style="color:#037691" %)**Each RS485 commands include two parts:**
358 +**Each RS485 commands include two parts:**
365 365  
366 366  ~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.
367 367  
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376 376  Below are examples for the how above AT Commands works.
377 377  
378 378  
379 -(% 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:
373 +**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
380 380  
381 381  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
382 382  |(% style="width:496px" %)(((
383 -(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
377 +**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
384 384  
385 385  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
386 386  
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392 392  In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
393 393  
394 394  
395 -(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
389 +**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
396 396  
397 397  (% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
398 398  |(% style="width:510px" %)(((
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405 405  
406 406  **Examples:**
407 407  
408 -* (% style="color:#037691" %)**Grab bytes**
402 +* Grab bytes:
409 409  
410 410  [[image:image-20220602153621-1.png]]
411 411  
412 412  
413 -* (% style="color:#037691" %)**Grab a section**
407 +* Grab a section.
414 414  
415 415  [[image:image-20220602153621-2.png]]
416 416  
417 417  
418 -* (% style="color:#037691" %)**Grab different sections**
412 +* Grab different sections.
419 419  
420 420  [[image:image-20220602153621-3.png]]
421 421  
422 -
423 423  
424 424  )))
425 425  
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528 528  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
529 529  
530 530  
531 -== 3.5 Configure RS485-LN via AT or Downlink ==
524 +== 3.5 Configure RS485-BL via AT or Downlink ==
532 532  
533 533  (((
534 534  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
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694 694  ==== **Set Payload version** ====
695 695  
696 696  (((
697 -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.
690 +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.
698 698  )))
699 699  
700 700  * (((
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792 792  XX XX XX XX: AT+COMMAND or AT+DATACUT command
793 793  )))
794 794  * (((
795 -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.
788 +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.
796 796  )))
797 797  
798 798  (((
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1213 1213  |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1214 1214  |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1215 1215  
1209 +
1210 +
1216 1216  == 3.8 LEDs ==
1217 1217  
1218 1218  
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1221 1221  |**PWR**|Always on if there is power
1222 1222  |**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.
1223 1223  
1219 +
1220 +
1224 1224  = 4. Case Study =
1225 1225  
1226 1226  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]]
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1231 1231  == 5.1 Access AT Command ==
1232 1232  
1233 1233  (((
1234 -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.
1231 +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.
1235 1235  )))
1236 1236  
1237 1237  [[image:1654162355560-817.png]]
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1238 1238  
1239 1239  
1240 1240  (((
1241 -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:
1238 +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:
1242 1242  )))
1243 1243  
1244 1244  [[image:1654162368066-342.png]]
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1387 1387  User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1388 1388  
1389 1389  
1390 -== 6.3 How many RS485-Slave can RS485-LN connects? ==
1387 +== 6.3 How many RS485-Slave can RS485-BL connects? ==
1391 1391  
1392 -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"]].
1389 +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"]].
1393 1393  
1394 1394  
1395 1395  == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
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