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From version < 58.52 >
edited by Xiaoling
on 2022/06/06 13:56
To version < 60.12 >
edited by Xiaoling
on 2022/06/14 11:26
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Summary

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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  
... ... @@ -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  )))
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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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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)
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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  (((
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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:
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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  
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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"]]
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234 234  (((
235 235  (((
236 236  (((
237 -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.
238 238  )))
239 239  )))
240 240  
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321 321  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
322 322  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
323 323  |AT+CFGDEV|(% style="width:110px" %)(((
334 +(((
324 324  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
336 +)))
325 325  
338 +(((
326 326  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
340 +)))
327 327  
342 +(((
328 328  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
344 +)))
329 329  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
330 330  
331 331  
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341 341  During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
342 342  
343 343  
344 -**Each RS485 commands include two parts:**
360 +(% style="color:#037691" %)**Each RS485 commands include two parts:**
345 345  
346 346  ~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.
347 347  
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356 356  Below are examples for the how above AT Commands works.
357 357  
358 358  
359 -**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:
360 360  
361 361  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
362 362  |(% style="width:496px" %)(((
363 -**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**
364 364  
365 365  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
366 366  
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372 372  In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
373 373  
374 374  
375 -**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.
376 376  
377 377  (% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
378 378  |(% style="width:510px" %)(((
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385 385  
386 386  **Examples:**
387 387  
388 -* Grab bytes:
404 +* (% style="color:#037691" %)**Grab bytes**
389 389  
390 390  [[image:image-20220602153621-1.png]]
391 391  
392 392  
393 -* Grab a section.
409 +* (% style="color:#037691" %)**Grab a section**
394 394  
395 395  [[image:image-20220602153621-2.png]]
396 396  
397 397  
398 -* Grab different sections.
414 +* (% style="color:#037691" %)**Grab different sections**
399 399  
400 400  [[image:image-20220602153621-3.png]]
401 401  
418 +
402 402  
403 403  )))
404 404  
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507 507  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
508 508  
509 509  
510 -== 3.5 Configure RS485-BL via AT or Downlink ==
527 +== 3.5 Configure RS485-LN via AT or Downlink ==
511 511  
512 512  (((
513 513  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
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673 673  ==== **Set Payload version** ====
674 674  
675 675  (((
676 -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.
677 677  )))
678 678  
679 679  * (((
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771 771  XX XX XX XX: AT+COMMAND or AT+DATACUT command
772 772  )))
773 773  * (((
774 -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.
775 775  )))
776 776  
777 777  (((
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1186 1186  == 3.7 Buttons ==
1187 1187  
1188 1188  
1189 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1190 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1191 -|(% 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**
1192 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1193 -|(% 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"]]
1194 1194  
1195 -
1196 1196  == 3.8 LEDs ==
1197 1197  
1198 1198  
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1201 1201  |**PWR**|Always on if there is power
1202 1202  |**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.
1203 1203  
1204 -
1205 1205  = 4. Case Study =
1206 1206  
1207 1207  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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1212 1212  == 5.1 Access AT Command ==
1213 1213  
1214 1214  (((
1215 -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.
1216 1216  )))
1217 1217  
1218 1218  [[image:1654162355560-817.png]]
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1219 1219  
1220 1220  
1221 1221  (((
1222 -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:
1223 1223  )))
1224 1224  
1225 1225  [[image:1654162368066-342.png]]
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1253 1253  )))
1254 1254  
1255 1255  
1271 +(((
1256 1256  If device already joined network:
1273 +)))
1257 1257  
1258 1258  (% class="box infomessage" %)
1259 1259  (((
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1366 1366  User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1367 1367  
1368 1368  
1369 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1386 +== 6.3 How many RS485-Slave can RS485-LN connects? ==
1370 1370  
1371 -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"]].
1372 1372  
1373 1373  
1374 1374  == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
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