Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 32.12 >
edited by Xiaoling
on 2022/06/02 15:26
To version < 42.3 >
edited by Xiaoling
on 2022/06/02 16:47
>
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -76,8 +76,6 @@
76 76  * Automatic RF Sense and CAD with ultra-fast AFC.
77 77  * Packet engine up to 256 bytes with CRC.
78 78  
79 -
80 -
81 81  == 1.3 Features ==
82 82  
83 83  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -89,8 +89,6 @@
89 89  * Support Modbus protocol
90 90  * Support Interrupt uplink (Since hardware version v1.2)
91 91  
92 -
93 -
94 94  == 1.4 Applications ==
95 95  
96 96  * Smart Buildings & Home Automation
... ... @@ -100,8 +100,6 @@
100 100  * Smart Cities
101 101  * Smart Factory
102 102  
103 -
104 -
105 105  == 1.5 Firmware Change log ==
106 106  
107 107  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -152,10 +152,15 @@
152 152  
153 153  [[image:1653268155545-638.png||height="334" width="724"]]
154 154  
149 +
155 155  (((
151 +(((
156 156  The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
153 +)))
157 157  
155 +(((
158 158  485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
157 +)))
159 159  
160 160  [[image:1653268227651-549.png||height="592" width="720"]]
161 161  
... ... @@ -207,6 +207,7 @@
207 207  
208 208  [[image:1652953568895-172.png||height="232" width="724"]]
209 209  
209 +
210 210  == 3.3 Configure Commands to read data ==
211 211  
212 212  (((
... ... @@ -216,6 +216,8 @@
216 216  
217 217  (((
218 218  (% 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
219 +
220 +
219 219  )))
220 220  )))
221 221  
... ... @@ -223,19 +223,19 @@
223 223  
224 224  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:
225 225  
226 -(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
227 -|(((
228 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
229 +|(% style="width:128px" %)(((
228 228  **AT Commands**
229 -)))|(% style="width:285px" %)(((
231 +)))|(% style="width:305px" %)(((
230 230  **Description**
231 -)))|(% style="width:347px" %)(((
233 +)))|(% style="width:346px" %)(((
232 232  **Example**
233 233  )))
234 -|(((
236 +|(% style="width:128px" %)(((
235 235  AT+BAUDR
236 -)))|(% style="width:285px" %)(((
238 +)))|(% style="width:305px" %)(((
237 237  Set the baud rate (for RS485 connection). Default Value is: 9600.
238 -)))|(% style="width:347px" %)(((
240 +)))|(% style="width:346px" %)(((
239 239  (((
240 240  AT+BAUDR=9600
241 241  )))
... ... @@ -244,11 +244,11 @@
244 244  Options: (1200,2400,4800,14400,19200,115200)
245 245  )))
246 246  )))
247 -|(((
249 +|(% style="width:128px" %)(((
248 248  AT+PARITY
249 -)))|(% style="width:285px" %)(((
251 +)))|(% style="width:305px" %)(((
250 250  Set UART parity (for RS485 connection)
251 -)))|(% style="width:347px" %)(((
253 +)))|(% style="width:346px" %)(((
252 252  (((
253 253  AT+PARITY=0
254 254  )))
... ... @@ -257,9 +257,9 @@
257 257  Option: 0: no parity, 1: odd parity, 2: even parity
258 258  )))
259 259  )))
260 -|(((
262 +|(% style="width:128px" %)(((
261 261  AT+STOPBIT
262 -)))|(% style="width:285px" %)(((
264 +)))|(% style="width:305px" %)(((
263 263  (((
264 264  Set serial stopbit (for RS485 connection)
265 265  )))
... ... @@ -267,7 +267,7 @@
267 267  (((
268 268  
269 269  )))
270 -)))|(% style="width:347px" %)(((
272 +)))|(% style="width:346px" %)(((
271 271  (((
272 272  AT+STOPBIT=0 for 1bit
273 273  )))
... ... @@ -302,77 +302,34 @@
302 302  === 3.3.3 Configure read commands for each sampling ===
303 303  
304 304  (((
305 -RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
306 -)))
307 +During each sampling, we need confirm what commands we need to send to the RS485 sensors to read data. After the RS485 sensors send back the value, it normally include some bytes and we only need a few from them for a shorten payload.
307 307  
308 -(((
309 -During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
310 -)))
311 -
312 -(((
313 313  To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
314 -)))
315 315  
316 -(((
317 317  This section describes how to achieve above goals.
318 -)))
319 319  
320 -(((
321 -During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
322 -)))
313 +During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
323 323  
324 -(((
325 -**Command from RS485-BL to Sensor:**
326 -)))
327 327  
328 -(((
329 -RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
330 -)))
316 +**Each RS485 commands include two parts:**
331 331  
332 -(((
333 -**Handle return from sensors to RS485-BL**:
334 -)))
318 +~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.
335 335  
336 -(((
337 -After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands**
338 -)))
320 +2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar.
339 339  
340 -* (((
341 -**AT+DATACUT**
342 -)))
322 +3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms
343 343  
344 -(((
345 -When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command.
346 -)))
347 347  
348 -* (((
349 -**AT+SEARCH**
350 -)))
351 -
352 -(((
353 -When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string.
354 -)))
355 -
356 -(((
357 -**Define wait timeout:**
358 -)))
359 -
360 -(((
361 -Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example, AT+CMDDL1=1000 to send the open time to 1000ms
362 -)))
363 -
364 -(((
365 365  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
366 -)))
367 367  
368 -**Examples:**
369 369  
370 370  Below are examples for the how above AT Commands works.
371 371  
372 -**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
373 373  
374 -(% border="1" class="table-bordered" %)
375 -|(((
331 +**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
332 +
333 +(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
334 +|(% style="width:496px" %)(((
376 376  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
377 377  
378 378  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
... ... @@ -380,49 +380,15 @@
380 380  **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
381 381  )))
382 382  
383 -(((
384 384  For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
385 -)))
386 386  
387 -(((
388 -In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
389 -)))
344 +In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
390 390  
391 -(((
392 -**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
393 -)))
394 394  
395 -(% border="1" class="table-bordered" %)
396 -|(((
397 -**AT+SEARCHx=aa,xx xx xx xx xx**
398 -
399 -* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
400 -* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
401 -
402 -
403 -)))
404 -
405 -**Examples:**
406 -
407 -~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
408 -
409 -If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
410 -
411 -The valid data will be all bytes after 1E 56 34 , so it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30 31 00 49**
412 -
413 -[[image:1653269403619-508.png]]
414 -
415 -2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
416 -
417 -If we set AT+SEARCH1=2, 1E 56 34+31 00 49
418 -
419 -Device will search the bytes between 1E 56 34 and 31 00 49. So it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30**
420 -
421 -[[image:1653269438444-278.png]]
422 -
423 423  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
424 424  
425 -|(((
349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350 +|(% style="width:722px" %)(((
426 426  **AT+DATACUTx=a,b,c**
427 427  
428 428  * **a: length for the return of AT+COMMAND**
... ... @@ -430,48 +430,37 @@
430 430  * **c: define the position for valid value.  **
431 431  )))
432 432  
433 -Examples:
358 +**Examples:**
434 434  
435 435  * Grab bytes:
436 436  
437 -[[image:1653269551753-223.png||height="311" width="717"]]
362 +[[image:image-20220602153621-1.png]]
438 438  
364 +
439 439  * Grab a section.
440 440  
441 -[[image:1653269568276-930.png||height="325" width="718"]]
367 +[[image:image-20220602153621-2.png]]
442 442  
369 +
443 443  * Grab different sections.
444 444  
445 -[[image:1653269593172-426.png||height="303" width="725"]]
372 +[[image:image-20220602153621-3.png]]
446 446  
447 -(% style="color:red" %)**Note:**
374 +
375 +)))
448 448  
449 -AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0.
450 -
451 -Example:
452 -
453 -(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
454 -
455 -(% style="color:red" %)AT+SEARCH1=1,1E 56 34
456 -
457 -(% style="color:red" %)AT+DATACUT1=0,2,1~~5
458 -
459 -(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
460 -
461 -(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
462 -
463 -(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
464 -
465 -[[image:1653269618463-608.png]]
466 -
467 467  === 3.3.4 Compose the uplink payload ===
468 468  
469 469  (((
470 470  Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
381 +
382 +
471 471  )))
472 472  
473 473  (((
474 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
386 +(% style="color:#037691" %)**Examples: AT+DATAUP=0**
387 +
388 +
475 475  )))
476 476  
477 477  (((
... ... @@ -492,8 +492,10 @@
492 492  
493 493  [[image:1653269759169-150.png||height="513" width="716"]]
494 494  
495 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
496 496  
410 +(% style="color:#037691" %)**Examples: AT+DATAUP=1**
411 +
412 +
497 497  Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
498 498  
499 499  Final Payload is
... ... @@ -500,169 +500,122 @@
500 500  
501 501  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
502 502  
503 -1. Battery Info (2 bytes): Battery voltage
504 -1. PAYVER (1 byte): Defined by AT+PAYVER
505 -1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
506 -1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
507 -1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
419 +1. PAYVER: Defined by AT+PAYVER
420 +1. PAYLOAD COUNT: Total how many uplinks of this sampling.
421 +1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
422 +1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
508 508  
509 -[[image:1653269916228-732.png||height="433" width="711"]]
424 +[[image:image-20220602155039-4.png]]
510 510  
511 511  
512 -So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
427 +So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
513 513  
514 -DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
429 +DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
515 515  
516 -DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
431 +DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
517 517  
518 -DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
433 +DATA3=the rest of Valid value of RETURN10= **30**
519 519  
520 -Below are the uplink payloads:
521 521  
522 -[[image:1653270130359-810.png]]
436 +(% style="color:red" %)Notice: In firmware v1.3, the Max bytes has been changed according to the max bytes in different Frequency Bands for lowest SF. As below:
523 523  
438 + ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
524 524  
525 -(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
440 + * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
526 526  
527 - ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
442 + * For US915 band, max 11 bytes for each uplink.
528 528  
529 - * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
444 + ~* For all other bands: max 51 bytes for each uplink.
530 530  
531 - * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
532 532  
533 - ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
447 +Below are the uplink payloads:
534 534  
449 +[[image:1654157178836-407.png]]
450 +
451 +
535 535  === 3.3.5 Uplink on demand ===
536 536  
537 -Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
454 +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.
538 538  
539 539  Downlink control command:
540 540  
541 -[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
458 +**0x08 command**: Poll an uplink with current command set in RS485-LN.
542 542  
543 -[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
460 +**0xA8 command**: Send a command to RS485-LN and uplink the output from sensors.
544 544  
545 545  
546 546  
547 -1.
548 -11.
549 -111. Uplink on Interrupt
464 +=== 3.3.6 Uplink on Interrupt ===
550 550  
551 -Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
466 +RS485-LN support external Interrupt uplink since hardware v1.2 release.
552 552  
553 -AT+INTMOD=0  Disable Interrupt
468 +[[image:1654157342174-798.png]]
554 554  
555 -AT+INTMOD=1  Interrupt trigger by rising or falling edge.
470 +Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
556 556  
557 -AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
558 558  
559 -AT+INTMOD=3  Interrupt trigger by rising edge.
473 +== 3.4 Uplink Payload ==
560 560  
561 -
562 -1.
563 -11. Uplink Payload
564 -
565 -|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
566 -|Value|(((
475 +(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
476 +|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
477 +|Value|(% style="width:120px" %)(((
567 567  Battery(mV)
568 568  
569 569  &
570 570  
571 571  Interrupt _Flag
572 -)))|(((
483 +)))|(% style="width:116px" %)(((
573 573  PAYLOAD_VER
574 574  
575 575  
576 -)))|If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
487 +)))|(% style="width:386px" %)If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
577 577  
578 578  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
579 579  
580 580  
581 -function Decoder(bytes, port) {
492 +== 3.5 Configure RS485-BL via AT or Downlink ==
582 582  
583 -~/~/Payload Formats of RS485-BL Deceive
494 +User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
584 584  
585 -return {
586 -
587 - ~/~/Battery,units:V
588 -
589 - BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
590 -
591 - ~/~/GPIO_EXTI 
592 -
593 - EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
594 -
595 - ~/~/payload of version
596 -
597 - Pay_ver:bytes[2],
598 -
599 - };
600 -
601 - }
602 -
603 -
604 -
605 -
606 -
607 -
608 -
609 -TTN V3 uplink screen shot.
610 -
611 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
612 -
613 -1.
614 -11. Configure RS485-BL via AT or Downlink
615 -
616 -User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
617 -
618 618  There are two kinds of Commands:
619 619  
620 -* **Common Commands**: They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
498 +* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
621 621  
622 -* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
500 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
623 623  
624 -1.
625 -11.
626 -111. Common Commands:
502 +=== 3.5.1 Common Commands ===
627 627  
628 -They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
504 +They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
629 629  
630 630  
631 -1.
632 -11.
633 -111. Sensor related commands:
507 +=== 3.5.2 Sensor related commands ===
634 634  
635 -==== Choose Device Type (RS485 or TTL) ====
509 +Response feature is added to the server's downlink, a special package with a FPort of 200 will be uploaded immediately after receiving the data sent by the server.
636 636  
637 -RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
511 +[[image:image-20220602163333-5.png||height="263" width="1160"]]
638 638  
639 -* AT Command
513 +The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable)
640 640  
641 -**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
642 642  
643 -**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
516 +=== 3.5.3 Sensor related commands ===
644 644  
518 +==== ====
645 645  
646 -* Downlink Payload
520 +==== **RS485 Debug Command** ====
647 647  
648 -**0A aa**     à same as AT+MOD=aa
522 +This command is used to configure the RS485 devices; they won’t be used during sampling.
649 649  
524 +* **AT Command**
650 650  
526 +(% class="box infomessage" %)
527 +(((
528 +**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
529 +)))
651 651  
652 -==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
531 +m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
653 653  
654 -This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
533 +* **Downlink Payload**
655 655  
656 -* AT Command
657 -
658 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
659 -
660 -m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
661 -
662 -
663 -
664 -* Downlink Payload
665 -
666 666  Format: A8 MM NN XX XX XX XX YY
667 667  
668 668  Where:
... ... @@ -670,9 +670,12 @@
670 670  * MM: 1: add CRC-16/MODBUS ; 0: no CRC
671 671  * NN: The length of RS485 command
672 672  * XX XX XX XX: RS485 command total NN bytes
673 -* YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
542 +* YY: How many bytes will be uplink from the return of this RS485 command,
543 +** if YY=0, RS485-LN will execute the downlink command without uplink;
544 +** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
545 +** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
674 674  
675 -**Example 1:**
547 +**Example 1** ~-~-> Configure without ask for uplink (YY=0)
676 676  
677 677  To connect a Modbus Alarm with below commands.
678 678  
... ... @@ -682,59 +682,76 @@
682 682  
683 683  So if user want to use downlink command to control to RS485 Alarm, he can use:
684 684  
685 -**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
557 +(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
686 686  
687 -**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
559 +(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
688 688  
689 689  A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
690 690  
691 691  
692 -**Example 2:**
564 +**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
693 693  
694 -Check TTL Sensor return:
566 +User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
695 695  
696 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
697 697  
569 +RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:
698 698  
571 + **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
699 699  
573 + [[image:1654159460680-153.png]]
700 700  
701 -==== Set Payload version ====
702 702  
576 +
577 +==== **Set Payload version** ====
578 +
703 703  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.
704 704  
705 -* AT Command:
581 +* **AT Command:**
706 706  
707 -AT+PAYVER: Set PAYVER field = 1
583 +(% class="box infomessage" %)
584 +(((
585 +**AT+PAYVER: Set PAYVER field = 1**
586 +)))
708 708  
709 709  
710 -* Downlink Payload:
589 +* **Downlink Payload:**
711 711  
712 -0xAE 01   à Set PAYVER field =  0x01
591 +**0xAE 01**  ~-~-> Set PAYVER field =  0x01
713 713  
714 -0xAE 0F   à Set PAYVER field =  0x0F
593 +**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
715 715  
716 716  
717 -==== Set RS485 Sampling Commands ====
718 718  
597 +==== **Set RS485 Sampling Commands** ====
598 +
719 719  AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
720 720  
721 -These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
601 +These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
722 722  
723 723  
724 -* AT Command:
604 +* **AT Command:**
725 725  
726 -AT+COMMANDx: Configure RS485 read command to sensor.
606 +(% class="box infomessage" %)
607 +(((
608 +**AT+COMMANDx: Configure RS485 read command to sensor.**
609 +)))
727 727  
728 -AT+DATACUTx: Configure how to handle return from RS485 devices.
611 +(% class="box infomessage" %)
612 +(((
613 +**AT+DATACUTx: Configure how to handle return from RS485 devices.**
614 +)))
729 729  
730 -AT+SEARCHx: Configure search command
616 +(% class="box infomessage" %)
617 +(((
618 +**AT+SEARCHx: Configure search command**
619 +)))
731 731  
732 732  
733 -* Downlink Payload:
622 +* **Downlink Payload:**
734 734  
735 -0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
624 +**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
736 736  
737 -Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
626 +(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
738 738  
739 739  Format: AF MM NN LL XX XX XX XX YY
740 740  
... ... @@ -741,23 +741,23 @@
741 741  Where:
742 742  
743 743  * MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
744 -* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
745 -* LL: The length of AT+COMMAND or AT+DATACUT command
633 +* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
634 +* LL:  The length of AT+COMMAND or AT+DATACUT command
746 746  * XX XX XX XX: AT+COMMAND or AT+DATACUT command
747 -* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
636 +* YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
748 748  
749 -Example:
638 +**Example:**
750 750  
751 -**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
640 +(% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
752 752  
753 -**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
642 +(% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
754 754  
755 -**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
644 +(% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
756 756  
757 757  
758 -0xAB downlink command can be used for set AT+SEARCHx
647 +**0xAB** downlink command can be used for set AT+SEARCHx
759 759  
760 -Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
649 +**Example:** **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
761 761  
762 762  * AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
763 763  * AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
... ... @@ -765,145 +765,164 @@
765 765  **AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
766 766  
767 767  
768 -==== Fast command to handle MODBUS device ====
769 769  
658 +==== **Fast command to handle MODBUS device** ====
659 +
770 770  AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
771 771  
772 772  This command is valid since v1.3 firmware version
773 773  
774 774  
775 -AT+MBFUN has only two value:
665 +**AT+MBFUN has only two value:**
776 776  
777 -* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
667 +* **AT+MBFUN=1**: Enable Modbus reading. And get response base on the MODBUS return
778 778  
779 779  AT+MBFUN=1, device can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
780 780  
781 -* AT+MBFUN=0: Disable Modbus fast reading.
671 +* **AT+MBFUN=0**: Disable Modbus fast reading.
782 782  
783 -Example:
673 +**Example:**
784 784  
785 785  * AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
786 786  * AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
787 787  * AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
788 788  
789 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
679 +[[image:1654133913295-597.png]]
790 790  
791 791  
792 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
682 +[[image:1654133954153-643.png]]
793 793  
794 794  
795 -* Downlink Commands:
685 +* **Downlink Commands:**
796 796  
797 -A9 aa -à Same as AT+MBFUN=aa
687 +**A9 aa** ~-~-> Same as AT+MBFUN=aa
798 798  
799 799  
800 -==== RS485 command timeout ====
801 801  
691 +==== **RS485 command timeout** ====
692 +
802 802  Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
803 803  
804 804  Default value: 0, range:  0 ~~ 5 seconds
805 805  
806 806  
807 -* AT Command:
698 +* **AT Command:**
808 808  
809 -AT+CMDDLaa=hex(bb cc)
700 +(% class="box infomessage" %)
701 +(((
702 +**AT+CMDDLaa=hex(bb cc)**
703 +)))
810 810  
811 -Example:
705 +**Example:**
812 812  
813 813  **AT+CMDDL1=1000** to send the open time to 1000ms
814 814  
815 815  
816 -* Downlink Payload:
710 +* **Downlink Payload:**
817 817  
818 818  0x AA aa bb cc
819 819  
820 820  Same as: AT+CMDDLaa=hex(bb cc)
821 821  
822 - Example:
716 + **Example:**
823 823  
824 - 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
718 + **0xAA 01 03 E8**  ~-~-> Same as **AT+CMDDL1=1000 ms**
825 825  
826 826  
827 -==== [[Uplink>>path:#downlink_A8]] payload mode ====
828 828  
722 +==== **Uplink payload mode** ====
723 +
829 829  Define to use one uplink or multiple uplinks for the sampling.
830 830  
831 -The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
726 +The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
832 832  
833 -* AT Command:
728 +* **AT Command:**
834 834  
835 -AT+DATAUP=0
730 +(% class="box infomessage" %)
731 +(((
732 +**AT+DATAUP=0**
733 +)))
836 836  
837 -AT+DATAUP=1
735 +(% class="box infomessage" %)
736 +(((
737 +**AT+DATAUP=1**
738 +)))
838 838  
839 839  
840 -* Downlink Payload:
741 +* **Downlink Payload:**
841 841  
842 -0xAD 00   à Same as AT+DATAUP=0
743 +**0xAD 00**  **~-~->** Same as AT+DATAUP=0
843 843  
844 -0xAD 01   à Same as AT+DATAUP=1
745 +**0xAD 01**  **~-~->** Same as AT+DATAUP=1
845 845  
846 846  
847 -==== Manually trigger an Uplink ====
848 848  
749 +==== **Manually trigger an Uplink** ====
750 +
849 849  Ask device to send an uplink immediately.
850 850  
851 -* Downlink Payload:
753 +* **Downlink Payload:**
852 852  
853 -0x08 FF, RS485-BL will immediately send an uplink.
755 +**0x08 FF**, RS485-BL will immediately send an uplink.
854 854  
855 855  
856 -==== Clear RS485 Command ====
857 857  
759 +==== **Clear RS485 Command** ====
760 +
858 858  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
859 859  
860 860  
861 -* AT Command:
764 +* **AT Command:**
862 862  
863 -**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
766 +(% style="color:#037691" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
864 864  
865 -Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
866 -
867 867  Example screen shot after clear all RS485 commands. 
868 868  
869 869  
870 -
871 871  The uplink screen shot is:
872 872  
873 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
773 +[[image:1654134704555-320.png]]
874 874  
875 875  
876 -* Downlink Payload:
776 +* **Downlink Payload:**
877 877  
878 -0x09 aa bb same as AT+CMDEAR=aa,bb
778 +**0x09 aa bb** same as AT+CMDEAR=aa,bb
879 879  
880 880  
881 -==== Set Serial Communication Parameters ====
882 882  
782 +==== **Set Serial Communication Parameters** ====
783 +
883 883  Set the Rs485 serial communication parameters:
884 884  
885 -* AT Command:
786 +* **AT Command:**
886 886  
887 887  Set Baud Rate:
888 888  
889 -AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
790 +(% class="box infomessage" %)
791 +(((
792 +**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
793 +)))
890 890  
795 +Set UART Parity
891 891  
892 -Set UART parity
797 +(% class="box infomessage" %)
798 +(((
799 +**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
800 +)))
893 893  
894 -AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
895 -
896 -
897 897  Set STOPBIT
898 898  
899 -AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
804 +(% class="box infomessage" %)
805 +(((
806 +**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
807 +)))
900 900  
901 901  
902 -* Downlink Payload:
810 +* **Downlink Payload:**
903 903  
904 -A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
812 +**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
905 905  
906 -Example:
814 +**Example:**
907 907  
908 908  * A7 01 00 60   same as AT+BAUDR=9600
909 909  * A7 01 04 80  same as AT+BAUDR=115200
... ... @@ -913,287 +913,22 @@
913 913  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
914 914  
915 915  
916 -==== Control output power duration ====
917 917  
825 +==== **Control output power duration** ====
826 +
918 918  User can set the output power duration before each sampling.
919 919  
920 -* AT Command:
829 +* **AT Command:**
921 921  
922 -Example:
831 +**Example:**
923 923  
924 -AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
833 +**AT+3V3T=1000**  ~/~/ 3V3 output power will open 1s before each sampling.
925 925  
926 -AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
835 +**AT+5VT=1000**  ~/~/ +5V output power will open 1s before each sampling.
927 927  
928 928  
929 -* LoRaWAN Downlink Command:
838 +* **LoRaWAN Downlink Command:**
930 930  
931 -07 01 aa bb  Same as AT+5VT=(aa bb)
840 +**07 01 aa bb**  Same as AT+5VT=(aa bb)
932 932  
933 -07 02 aa bb  Same as AT+3V3T=(aa bb)
934 -
935 -
936 -
937 -
938 -1.
939 -11. Buttons
940 -
941 -|**Button**|**Feature**
942 -|**RST**|Reboot RS485-BL
943 -
944 -1.
945 -11. +3V3 Output
946 -
947 -RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
948 -
949 -The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling. 
950 -
951 -
952 -The +3V3 output time can be controlled by AT Command.
953 -
954 -**AT+3V3T=1000**
955 -
956 -Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
957 -
958 -
959 -By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
960 -
961 -
962 -1.
963 -11. +5V Output
964 -
965 -RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
966 -
967 -The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling. 
968 -
969 -
970 -The 5V output time can be controlled by AT Command.
971 -
972 -**AT+5VT=1000**
973 -
974 -Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
975 -
976 -
977 -By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
978 -
979 -
980 -
981 -
982 -1.
983 -11. LEDs
984 -
985 -|**LEDs**|**Feature**
986 -|**LED1**|Blink when device transmit a packet.
987 -
988 -1.
989 -11. Switch Jumper
990 -
991 -|**Switch Jumper**|**Feature**
992 -|**SW1**|(((
993 -ISP position: Upgrade firmware via UART
994 -
995 -Flash position: Configure device, check running status.
996 -)))
997 -|**SW2**|(((
998 -5V position: set to compatible with 5v I/O.
999 -
1000 -3.3v position: set to compatible with 3.3v I/O.,
1001 -)))
1002 -
1003 -+3.3V: is always ON
1004 -
1005 -+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1006 -
1007 -1. Case Study
1008 -
1009 -User can check this URL for some case studies.
1010 -
1011 -[[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
1012 -
1013 -
1014 -
1015 -
1016 -1. Use AT Command
1017 -11. Access AT Command
1018 -
1019 -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.
1020 -
1021 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1022 -
1023 -
1024 -In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1025 -
1026 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1027 -
1028 -
1029 -
1030 -More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1031 -
1032 -
1033 -
1034 -1.
1035 -11. Common AT Command Sequence
1036 -111. Multi-channel ABP mode (Use with SX1301/LG308)
1037 -
1038 -If device has not joined network yet:
1039 -
1040 -AT+FDR
1041 -
1042 -AT+NJM=0
1043 -
1044 -ATZ
1045 -
1046 -
1047 -If device already joined network:
1048 -
1049 -AT+NJM=0
1050 -
1051 -ATZ
1052 -
1053 -1.
1054 -11.
1055 -111. Single-channel ABP mode (Use with LG01/LG02)
1056 -
1057 -AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1058 -
1059 -AT+NJM=0 Set to ABP mode
1060 -
1061 -AT+ADR=0 Set the Adaptive Data Rate Off
1062 -
1063 -AT+DR=5  Set Data Rate
1064 -
1065 -AT+TDC=60000  Set transmit interval to 60 seconds
1066 -
1067 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1068 -
1069 -AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1070 -
1071 -AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1072 -
1073 -AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1074 -
1075 -ATZ          Reset MCU
1076 -
1077 -**Note:**
1078 -
1079 -1. Make sure the device is set to ABP mode in the IoT Server.
1080 -1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1081 -1. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1082 -1. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1083 -
1084 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1085 -
1086 -
1087 -1. FAQ
1088 -11. How to upgrade the image?
1089 -
1090 -The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1091 -
1092 -* Support new features
1093 -* For bug fix
1094 -* Change LoRaWAN bands.
1095 -
1096 -Below shows the hardware connection for how to upload an image to RS485-BL:
1097 -
1098 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1099 -
1100 -**Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1101 -
1102 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1103 -
1104 -**Step3: **Open flashloader; choose the correct COM port to update.
1105 -
1106 -
1107 -|(((
1108 -HOLD PRO then press the RST button, SYS will be ON, then click next
1109 -)))
1110 -
1111 -|(((
1112 -Board detected
1113 -)))
1114 -
1115 -|(((
1116 -
1117 -)))
1118 -
1119 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
1120 -
1121 -
1122 -
1123 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
1124 -
1125 -
1126 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1127 -
1128 -
1129 -1.
1130 -11. How to change the LoRa Frequency Bands/Region?
1131 -
1132 -User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1133 -
1134 -
1135 -
1136 -1.
1137 -11. How many RS485-Slave can RS485-BL connects?
1138 -
1139 -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>>path:#downlink_A8]].
1140 -
1141 -
1142 -
1143 -
1144 -1. Trouble Shooting     
1145 -11. Downlink doesn’t work, how to solve it?
1146 -
1147 -Please see this link for debug:
1148 -
1149 -[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]] 
1150 -
1151 -
1152 -
1153 -1.
1154 -11. Why I can’t join TTN V3 in US915 /AU915 bands?
1155 -
1156 -It might about the channels mapping. Please see for detail.
1157 -
1158 -[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1159 -
1160 -
1161 -
1162 -1. Order Info
1163 -
1164 -**Part Number: RS485-BL-XXX**
1165 -
1166 -**XXX:**
1167 -
1168 -* **EU433**: frequency bands EU433
1169 -* **EU868**: frequency bands EU868
1170 -* **KR920**: frequency bands KR920
1171 -* **CN470**: frequency bands CN470
1172 -* **AS923**: frequency bands AS923
1173 -* **AU915**: frequency bands AU915
1174 -* **US915**: frequency bands US915
1175 -* **IN865**: frequency bands IN865
1176 -* **RU864**: frequency bands RU864
1177 -* **KZ865: **frequency bands KZ865
1178 -
1179 -1. Packing Info
1180 -
1181 -**Package Includes**:
1182 -
1183 -* RS485-BL x 1
1184 -* Stick Antenna for LoRa RF part x 1
1185 -* Program cable x 1
1186 -
1187 -**Dimension and weight**:
1188 -
1189 -* Device Size: 13.5 x 7 x 3 cm
1190 -* Device Weight: 105g
1191 -* Package Size / pcs : 14.5 x 8 x 5 cm
1192 -* Weight / pcs : 170g
1193 -
1194 -1. Support
1195 -
1196 -* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1197 -* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to
1198 -
1199 -[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
842 +**07 02 aa bb**  Same as AT+3V3T=(aa bb)
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