Last modified by Bei Jinggeng on 2025/01/10 15:06
<
From version < 109.1 >
edited by Saxer Lin
on 2023/12/14 09:34
To version < 102.16 >
edited by Xiaoling
on 2023/04/25 14:05
>
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1 -XWiki.Saxer
1 +XWiki.Xiaoling
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38 38  )))
39 39  
40 40  (((
41 -RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
41 +RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
42 42  )))
43 43  
44 44  (((
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208 208  )))
209 209  )))
210 210  
211 -(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]][[image:image-20230425175410-2.png]](% title="Click and drag to resize" %)​
211 +(% aria-label="1652953462722-299.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953462722-299.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
212 212  
213 213  
214 214  (((
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255 255  (% aria-label="1652953568895-172.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953568895-172.png||data-widget="image" height="232" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
256 256  
257 257  
258 -== 3.3 Configure Device to Read RS485 Sensors ==
258 +== 3.3 Configure Commands to read data ==
259 259  
260 260  
261 -There are plenty of RS485 and TTL level devices in the market and each device has different commands to read the valid data. To support these devices in most flexible, RS485-LN supports flexible command set. User can use [[Dragino RS485 Tool>>url:https://www.dropbox.com/sh/us9qecn39fwt8n1/AABREdqUCzEmJMRrfuWuXasoa?dl=0]],  [[AT Commands or LoRaWAN Downlink>>url:http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LB_Waterproof_RS485UART_to_LoRaWAN_Converter/#H3.5ConfigureRS485-LBviaATorDownlink]] Command to configure how RS485-LN should read the sensor and how to handle the return from RS485 or TTL sensors.
261 +(((
262 +(((
263 +(((
264 +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.
262 262  
266 +
267 +)))
268 +)))
263 263  
264 264  (((
265 265  (((
266 -(((
267 267  (% 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**
268 268  )))
269 269  
270 -=== ===
271 -
272 -=== 3.3.1 Method 1 ~-~- via RS485 Configure Tool ===
273 -
274 -Use the RS485 Configure tool is the recommand method. Please see the instruction of how to use the tool:
275 -
276 -* **[[RS485 Configure Tool Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/RS485_Configure_Tool/]]**
277 -
278 -[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/RS485-LB_Waterproof_RS485UART_to_LoRaWAN_Converter/WebHome/image-20231127144411-1.png?width=494&height=368&rev=1.1||alt="image-20231127144411-1.png" height="368" width="494"]]
279 -
280 -=== ===
281 -
282 -=== 3.3.2  Method 2 ~-~- via AT Commands ===
275 +
283 283  )))
284 284  )))
285 285  
286 -==== 3.3.2.1 Configure UART settings for RS485 or TTL communication ====
279 +=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
287 287  
288 -RS485-LN can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
289 289  
290 290  To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
291 291  
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312 312  
313 313  (((
314 314  Options: (1200,2400,4800,
307 +
315 315  14400,19200,115200)
316 316  )))
317 317  )))
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326 326  
327 327  (((
328 328  Option: 0: no parity,
322 +
329 329  1: odd parity,
324 +
330 330  2: even parity
331 331  )))
332 332  )))
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336 336  (((
337 337  Set serial stopbit (for RS485 connection)
338 338  )))
334 +
335 +(((
336 +
337 +)))
339 339  )))|(% style="width:193px" %)(((
340 340  (((
341 341  AT+STOPBIT=0 for 1bit
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350 350  )))
351 351  )))
352 352  
353 -=== 3.3.3 Configure sensors ===
354 354  
353 +=== 3.3.2 Configure sensors ===
355 355  
355 +
356 356  (((
357 357  Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
358 358  )))
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373 373  )))
374 374  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
375 375  
376 -=== 3.3.4 Configure read commands for each sampling ===
376 +=== 3.3.3 Configure read commands for each sampling ===
377 377  
378 378  
379 379  (((
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417 417  In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
418 418  
419 419  
420 -If a single command exceeds 14 bytes, you can use the command splicing function.
421 -
422 -When AT+CMDDLx=1, the commands of AT+COMMANDx and AT+COMMAND(x+1) will be merged.
423 -
424 -
425 -**Examples:** To send 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F data it should be configured:
426 -
427 - AT+COMMAND1=00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D,0
428 -
429 - AT+COMMAND1=1
430 -
431 - AT+COMMAND2=0E 0F,0
432 -
433 -
434 434  (% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
435 435  
436 436  (% border="1" style="background-color:#f2f2f2; width:510px" %)
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464 464  
465 465  )))
466 466  
467 -=== 3.3.5 Compose the uplink payload ===
453 +=== 3.3.4 Compose the uplink payload ===
468 468  
469 469  
470 470  (((
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549 549  (% aria-label="1654157178836-407.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157178836-407.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
550 550  
551 551  
552 -=== 3.3.6 Uplink on demand ===
538 +=== 3.3.5 Uplink on demand ===
553 553  
554 554  
555 555  Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command.
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561 561  (% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
562 562  
563 563  
564 -=== 3.3.7 Uplink on Interrupt ===
550 +=== 3.3.6 Uplink on Interrupt ===
565 565  
566 566  
567 567  RS485-LN support external Interrupt uplink since hardware v1.2 release.
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576 576  
577 577  
578 578  (% border="1" cellspacing="5" style="background-color:#f2f2f2; width:510px" %)
579 -|=(% scope="row" style="width: 70px;background-color:#D9E2F3;color:#0070C0" %)(((
565 +|=(% scope="row" style="width: 60px;background-color:#D9E2F3;color:#0070C0" %)(((
580 580  Size(bytes)
581 581  )))|(% style="background-color:#d9e2f3; color:#0070c0; width:80px" %)**1**|(% style="background-color:#d9e2f3; color:#0070c0; width:360px" %)(((
582 582  **Length depends on the return from the commands**
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936 936  
937 937  (% aria-label="image-20220602165351-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-7.png||data-widget="image"]](% title="Click and drag to resize" %)​
938 938  
939 -* (((
940 -(% style="color:#037691" %)**Downlink Command:**
941 -)))
942 942  
943 -**~ (% style="color:#4472c4" %)A9 aa(%%)** ~-~-> Same as AT+MBFUN=aa
944 944  
945 -
946 946  ==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
947 947  
948 948  
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1031 1031  (% style="color:#4472c4" %)** 0xAD 01**  (%%) **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
1032 1032  
1033 1033  
1034 -(Since firmware v1.4.0)
1035 -
1036 1036  * (((
1037 1037  (% style="color:#037691" %)** AT Command:**
1038 1038  )))
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1049 1049  Each uplink is sent to the server at 20-second intervals when segmented.
1050 1050  
1051 1051  
1052 -==== (% style="color:blue" %)**Cut data separation processing(Since Version 1.4.2)**(%%) ====
1053 1053  
1054 -
1055 -AT+NEWLINE command, which only takes effect when AT+DATAUP=1 or AT+DATAUP=1, timeout.
1056 -
1057 -When not set, each part of AT+DATAUP is sent according to the maximum number of bytes of DR.
1058 -
1059 -When setting, each part of AT+DATAUP is sent according to the value set by AT+NEWLINE.
1060 -
1061 -
1062 -* (((
1063 -(% style="color:#037691" %)** AT Command:**
1064 -)))
1065 -
1066 -(% style="color:#4472c4" %)//**AT+NEWLINE=ALL**//(%%)//   //The data cut out by each AT+COMMANDx command is sent separately as an uplink.
1067 -
1068 -(% style="color:#4472c4" %)//**AT+NEWLINE=ALL**//(%%)//   equal：  (% style="color:#4472c4" %)**AT+NEWLINE=1+2+3+4+5+6+7+8+9+10+11+12+13+14+15**//
1069 -
1070 -
1071 -(% style="color:#4472c4" %)//**AT+NEWLINE=a+b+c**//(%%)//  //The data returned by all commands is divided into three parts, COMMAND(1~~a) is the first part, COMMAND(a+1~~b) is the second part,COMMAND(b+1~~c) is the third part.
1072 -
1073 -
1074 -(% style="color:#4472c4" %)//**AT+NEWLINE=NULL**//(%%)//  //Turn off the functionality of this AT command.
1075 -
1076 -
1077 -* (((
1078 -(% style="color:#037691" %)** Downlink Payload:**
1079 -)))
1080 -
1081 -//AT+NEWLINE=ALL  ~-~-->  (% style="color:#4472c4" %)**0xAC 01**//
1082 -
1083 -// AT+NEWLINE= NULL  ~-~-->  (% style="color:#4472c4" %)**0xAC 00**//
1084 -
1085 -//AT+NEWLINE= a+b+c   ~-~-->  (% style="color:#4472c4" %)**0xAC number of bytes a b c**//
1086 -
1087 -//AT+NEWLINE= 1+5+15 ~-~-->  (% style="color:#4472c4" %)**0xAC 03 01 05 0F**//
1088 -
1089 -
1090 1090  ==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
1091 1091  
1092 1092  
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1649 1649  (% aria-label="image-20220602175912-14.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175912-14.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1650 1650  
1651 1651  
1652 -
1653 -(% style="color:red" %)**Users can select the new burning software STM32Cubeprogramer for firmware upgrade and follow the same connection steps to enter burning mode (until SYS LED is RED ON):**
1654 -
1655 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H4.2.FirmwareupgradeusingSTM32Cubeprogramer>>url:http://wiki.dragino.com/xwiki/bin/view/Main/Firmware%20Upgrade%20Instruction%20for%20STM32%20base%20products/#H4.2.FirmwareupgradeusingSTM32Cubeprogramer]]
1656 -
1657 -
1658 -
1659 1659  (% style="color:red" %)**Notice**: **In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:**
1660 1660  
1661 1661  (% aria-label="image-20220602175638-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175638-10.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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1808 1808  The decoder for RS485-LN needs to be written by yourself. Because the sensor to which the user is connected is custom, the read device data bytes also need custom parsing, so there is no universal decoder. We can only provide [[templates>>https://github.com/dragino/dragino-end-node-decoder/tree/main/RS485-LN]] for decoders (no intermediate data parsing part involved)
1809 1809  
1810 1810  
1811 -== 6.9 How to configure RS485 commands more conveniently？ ==
1812 -
1813 -
1814 -Dragino has developed an application for the RS485 series of products.
1815 -
1816 -It can help you configure RS485 sensors more conveniently
1817 -Please refer to the link below for specific usage：
1818 -
1819 -[[RS485 Configure Tool - DRAGINO>>url:http://wiki.dragino.com/xwiki/bin/view/Main/RS485_Configure_Tool/#HTableofContentsFF1A]]
1820 -
1821 -
1822 -
1823 1823  = 7. Trouble Shooting =
1824 1824  
1825 1825  == 7.1 Downlink doesn't work, how to solve it? ==
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