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Title
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1 -RS485-LN – RS485 to LoRaWAN Converter
1 +RS485-LN – RS485 to LoRaWAN Converter User Manual
Content
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3 3  
4 4  
5 5  
6 -**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 9  
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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  )))
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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  )))
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94 94  
95 95  
96 96  
100 +
97 97  == 1.3 Features ==
98 98  
99 99  * LoRaWAN Class A & Class C protocol (default Class C)
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182 182  
183 183  [[image:1653268227651-549.png||height="592" width="720"]]
184 184  
189 +
185 185  (((
186 186  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:
187 187  )))
188 188  
189 189  (((
190 -**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.
191 191  )))
192 192  
193 193  (((
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197 197  
198 198  [[image:1652953462722-299.png]]
199 199  
205 +
200 200  (((
201 201  (((
202 202  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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203 203  )))
204 204  
205 205  (((
206 -Add APP EUI in the application.
212 +**Add APP EUI in the application.**
207 207  )))
208 208  )))
209 209  
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219 219  
220 220  [[image:1652953542269-423.png||height="710" width="723"]]
221 221  
222 -Add APP KEY and DEV EUI
223 223  
229 +
230 +**Add APP KEY and DEV EUI**
231 +
224 224  [[image:1652953553383-907.png||height="514" width="724"]]
225 225  
226 226  
227 227  (((
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.
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.
229 229  )))
230 230  
231 231  [[image:1652953568895-172.png||height="232" width="724"]]
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236 236  (((
237 237  (((
238 238  (((
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.
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.
240 240  )))
241 241  )))
242 242  
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311 311  )))
312 312  )))
313 313  
322 +
314 314  === 3.3.2 Configure sensors ===
315 315  
316 316  (((
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335 335  )))
336 336  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
337 337  
347 +
338 338  === 3.3.3 Configure read commands for each sampling ===
339 339  
340 340  (((
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347 347  During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
348 348  
349 349  
350 -**Each RS485 commands include two parts:**
360 +(% style="color:#037691" %)**Each RS485 commands include two parts:**
351 351  
352 352  ~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.
353 353  
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362 362  Below are examples for the how above AT Commands works.
363 363  
364 364  
365 -**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:
366 366  
367 367  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
368 368  |(% style="width:496px" %)(((
369 -**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**
370 370  
371 371  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
372 372  
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378 378  In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
379 379  
380 380  
381 -**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.
382 382  
383 383  (% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
384 384  |(% style="width:510px" %)(((
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391 391  
392 392  **Examples:**
393 393  
394 -* Grab bytes:
404 +* (% style="color:#037691" %)**Grab bytes**
395 395  
396 396  [[image:image-20220602153621-1.png]]
397 397  
398 398  
399 -* Grab a section.
409 +* (% style="color:#037691" %)**Grab a section**
400 400  
401 401  [[image:image-20220602153621-2.png]]
402 402  
403 403  
404 -* Grab different sections.
414 +* (% style="color:#037691" %)**Grab different sections**
405 405  
406 406  [[image:image-20220602153621-3.png]]
407 407  
418 +
408 408  
409 409  )))
410 410  
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513 513  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
514 514  
515 515  
516 -== 3.5 Configure RS485-BL via AT or Downlink ==
527 +== 3.5 Configure RS485-LN via AT or Downlink ==
517 517  
518 518  (((
519 519  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
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679 679  ==== **Set Payload version** ====
680 680  
681 681  (((
682 -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.
683 683  )))
684 684  
685 685  * (((
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777 777  XX XX XX XX: AT+COMMAND or AT+DATACUT command
778 778  )))
779 779  * (((
780 -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.
781 781  )))
782 782  
783 783  (((
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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"]]
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"]]
1200 1200  
1201 1201  == 3.8 LEDs ==
1202 1202  
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1216 1216  == 5.1 Access AT Command ==
1217 1217  
1218 1218  (((
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.
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.
1220 1220  )))
1221 1221  
1222 1222  [[image:1654162355560-817.png]]
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1223 1223  
1224 1224  
1225 1225  (((
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:
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:
1227 1227  )))
1228 1228  
1229 1229  [[image:1654162368066-342.png]]
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1372 1372  User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1373 1373  
1374 1374  
1375 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1386 +== 6.3 How many RS485-Slave can RS485-LN connects? ==
1376 1376  
1377 -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"]].
1378 1378  
1379 1379  
1380 1380  == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==

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