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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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116 116  * Smart Cities
117 117  * Smart Factory
118 118  
122 +
123 +
119 119  == 1.5 Firmware Change log ==
120 120  
121 121  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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184 184  
185 185  [[image:1653268227651-549.png||height="592" width="720"]]
186 186  
192 +
187 187  (((
188 188  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:
189 189  )))
190 190  
191 191  (((
192 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
198 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
193 193  )))
194 194  
195 195  (((
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199 199  
200 200  [[image:1652953462722-299.png]]
201 201  
208 +
202 202  (((
203 203  (((
204 204  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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205 205  )))
206 206  
207 207  (((
208 -Add APP EUI in the application.
215 +**Add APP EUI in the application.**
209 209  )))
210 210  )))
211 211  
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221 221  
222 222  [[image:1652953542269-423.png||height="710" width="723"]]
223 223  
224 -Add APP KEY and DEV EUI
225 225  
232 +
233 +**Add APP KEY and DEV EUI**
234 +
226 226  [[image:1652953553383-907.png||height="514" width="724"]]
227 227  
228 228  
229 229  (((
230 -**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.
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.
231 231  )))
232 232  
233 233  [[image:1652953568895-172.png||height="232" width="724"]]
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238 238  (((
239 239  (((
240 240  (((
241 -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.
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.
242 242  )))
243 243  )))
244 244  
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313 313  )))
314 314  )))
315 315  
325 +
326 +
327 +
316 316  === 3.3.2 Configure sensors ===
317 317  
318 318  (((
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337 337  )))
338 338  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
339 339  
352 +
353 +
354 +
340 340  === 3.3.3 Configure read commands for each sampling ===
341 341  
342 342  (((
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349 349  During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
350 350  
351 351  
352 -**Each RS485 commands include two parts:**
367 +(% style="color:#037691" %)**Each RS485 commands include two parts:**
353 353  
354 354  ~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.
355 355  
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364 364  Below are examples for the how above AT Commands works.
365 365  
366 366  
367 -**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
382 +(% 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:
368 368  
369 369  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
370 370  |(% style="width:496px" %)(((
371 -**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
386 +(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
372 372  
373 373  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
374 374  
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380 380  In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
381 381  
382 382  
383 -**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
398 +(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
384 384  
385 385  (% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
386 386  |(% style="width:510px" %)(((
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393 393  
394 394  **Examples:**
395 395  
396 -* Grab bytes:
411 +* (% style="color:#037691" %)**Grab bytes**
397 397  
398 398  [[image:image-20220602153621-1.png]]
399 399  
400 400  
401 -* Grab a section.
416 +* (% style="color:#037691" %)**Grab a section**
402 402  
403 403  [[image:image-20220602153621-2.png]]
404 404  
405 405  
406 -* Grab different sections.
421 +* (% style="color:#037691" %)**Grab different sections**
407 407  
408 408  [[image:image-20220602153621-3.png]]
409 409  
425 +
410 410  
411 411  )))
412 412  
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515 515  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
516 516  
517 517  
518 -== 3.5 Configure RS485-BL via AT or Downlink ==
534 +== 3.5 Configure RS485-LN via AT or Downlink ==
519 519  
520 520  (((
521 521  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
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681 681  ==== **Set Payload version** ====
682 682  
683 683  (((
684 -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.
700 +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.
685 685  )))
686 686  
687 687  * (((
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779 779  XX XX XX XX: AT+COMMAND or AT+DATACUT command
780 780  )))
781 781  * (((
782 -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.
798 +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.
783 783  )))
784 784  
785 785  (((
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1194 1194  == 3.7 Buttons ==
1195 1195  
1196 1196  
1197 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1198 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1199 -|(% 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**
1200 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1201 -|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1213 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1214 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1215 +|(% 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**
1216 +|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1217 +|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1202 1202  
1203 1203  == 3.8 LEDs ==
1204 1204  
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1218 1218  == 5.1 Access AT Command ==
1219 1219  
1220 1220  (((
1221 -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.
1237 +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.
1222 1222  )))
1223 1223  
1224 1224  [[image:1654162355560-817.png]]
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1225 1225  
1226 1226  
1227 1227  (((
1228 -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:
1244 +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:
1229 1229  )))
1230 1230  
1231 1231  [[image:1654162368066-342.png]]
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1374 1374  User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1375 1375  
1376 1376  
1377 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1393 +== 6.3 How many RS485-Slave can RS485-LN connects? ==
1378 1378  
1379 -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"]].
1395 +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"]].
1380 1380  
1381 1381  
1382 1382  == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==

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