Last modified by Xiaoling on 2025/04/23 15:56
<
From version < 57.2 >
edited by Xiaoling
on 2022/06/06 08:41
To version < 35.6 >
edited by Xiaoling
on 2022/06/02 15:49
>
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -74,10 +74,8 @@
74 74  * Preamble detection.
75 75  * 127 dB Dynamic Range RSSI.
76 76  * Automatic RF Sense and CAD with ultra-fast AFC.
77 -* Packet engine up to 256 bytes with CRC
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)
... ... @@ -418,122 +418,169 @@
418 418  
419 419  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
420 420  
421 -1. PAYVER: Defined by AT+PAYVER
422 -1. PAYLOAD COUNT: Total how many uplinks of this sampling.
423 -1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
424 -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
419 +1. Battery Info (2 bytes): Battery voltage
420 +1. PAYVER (1 byte): Defined by AT+PAYVER
421 +1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
422 +1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
423 +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
425 425  
426 -[[image:image-20220602155039-4.png]]
425 +[[image:1653269916228-732.png||height="433" width="711"]]
427 427  
428 428  
429 -So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
428 +So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
430 430  
431 -DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
430 +DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
432 432  
433 -DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
432 +DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
434 434  
435 -DATA3=the rest of Valid value of RETURN10= **30**
434 +DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
436 436  
436 +Below are the uplink payloads:
437 437  
438 -(% 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:
438 +[[image:1653270130359-810.png]]
439 439  
440 - ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
441 441  
442 - * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
441 +(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
443 443  
444 - * For US915 band, max 11 bytes for each uplink.
443 + ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
445 445  
446 - ~* For all other bands: max 51 bytes for each uplink.
445 + * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
447 447  
447 + * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
448 448  
449 -Below are the uplink payloads:
449 + ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
450 450  
451 -[[image:1654157178836-407.png]]
452 -
453 -
454 454  === 3.3.5 Uplink on demand ===
455 455  
456 -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.
453 +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.
457 457  
458 458  Downlink control command:
459 459  
460 -**0x08 command**: Poll an uplink with current command set in RS485-LN.
457 +[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
461 461  
462 -**0xA8 command**: Send a command to RS485-LN and uplink the output from sensors.
459 +[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
463 463  
464 464  
465 465  
466 -=== 3.3.6 Uplink on Interrupt ===
463 +1.
464 +11.
465 +111. Uplink on Interrupt
467 467  
468 -RS485-LN support external Interrupt uplink since hardware v1.2 release.
467 +Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
469 469  
470 -[[image:1654157342174-798.png]]
469 +AT+INTMOD=0  Disable Interrupt
471 471  
472 -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.
471 +AT+INTMOD=1  Interrupt trigger by rising or falling edge.
473 473  
473 +AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
474 474  
475 -== 3.4 Uplink Payload ==
475 +AT+INTMOD=3  Interrupt trigger by rising edge.
476 476  
477 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
478 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
479 -|Value|(% style="width:120px" %)(((
477 +
478 +1.
479 +11. Uplink Payload
480 +
481 +|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
482 +|Value|(((
480 480  Battery(mV)
481 481  
482 482  &
483 483  
484 484  Interrupt _Flag
485 -)))|(% style="width:116px" %)(((
488 +)))|(((
486 486  PAYLOAD_VER
487 487  
488 488  
489 -)))|(% 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.
492 +)))|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.
490 490  
491 491  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
492 492  
493 493  
494 -== 3.5 Configure RS485-BL via AT or Downlink ==
497 +function Decoder(bytes, port) {
495 495  
496 -User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
499 +~/~/Payload Formats of RS485-BL Deceive
497 497  
501 +return {
502 +
503 + ~/~/Battery,units:V
504 +
505 + BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
506 +
507 + ~/~/GPIO_EXTI 
508 +
509 + EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
510 +
511 + ~/~/payload of version
512 +
513 + Pay_ver:bytes[2],
514 +
515 + };
516 +
517 + }
518 +
519 +
520 +
521 +
522 +
523 +
524 +
525 +TTN V3 uplink screen shot.
526 +
527 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
528 +
529 +1.
530 +11. Configure RS485-BL via AT or Downlink
531 +
532 +User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
533 +
498 498  There are two kinds of Commands:
499 499  
500 -* (% 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]]
536 +* **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
501 501  
502 -* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
538 +* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
503 503  
504 -=== 3.5.1 Common Commands ===
540 +1.
541 +11.
542 +111. Common Commands:
505 505  
506 -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]]
544 +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]]
507 507  
508 508  
509 -=== 3.5.2 Sensor related commands ===
547 +1.
548 +11.
549 +111. Sensor related commands:
510 510  
511 -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.
551 +==== Choose Device Type (RS485 or TTL) ====
512 512  
513 -[[image:image-20220602163333-5.png||height="263" width="1160"]]
553 +RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
514 514  
515 -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)
555 +* AT Command
516 516  
557 +**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
517 517  
518 -=== 3.5.3 Sensor related commands ===
559 +**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
519 519  
520 -==== ====
521 521  
522 -==== **RS485 Debug Command** ====
562 +* Downlink Payload
523 523  
524 -This command is used to configure the RS485 devices; they won’t be used during sampling.
564 +**0A aa**     à same as AT+MOD=aa
525 525  
526 -* **AT Command**
527 527  
528 -(% class="box infomessage" %)
529 -(((
530 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
531 -)))
532 532  
533 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
568 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
534 534  
535 -* **Downlink Payload**
570 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
536 536  
572 +* AT Command
573 +
574 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
575 +
576 +m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
577 +
578 +
579 +
580 +* Downlink Payload
581 +
537 537  Format: A8 MM NN XX XX XX XX YY
538 538  
539 539  Where:
... ... @@ -541,12 +541,9 @@
541 541  * MM: 1: add CRC-16/MODBUS ; 0: no CRC
542 542  * NN: The length of RS485 command
543 543  * XX XX XX XX: RS485 command total NN bytes
544 -* YY: How many bytes will be uplink from the return of this RS485 command,
545 -** if YY=0, RS485-LN will execute the downlink command without uplink;
546 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
547 -** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
589 +* 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
548 548  
549 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
591 +**Example 1:**
550 550  
551 551  To connect a Modbus Alarm with below commands.
552 552  
... ... @@ -556,191 +556,184 @@
556 556  
557 557  So if user want to use downlink command to control to RS485 Alarm, he can use:
558 558  
559 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
601 +**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
560 560  
561 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
603 +**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
562 562  
563 563  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.
564 564  
565 565  
566 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
608 +**Example 2:**
567 567  
568 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
610 +Check TTL Sensor return:
569 569  
612 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
570 570  
571 -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:
572 572  
573 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
574 574  
575 - [[image:1654159460680-153.png]]
576 576  
617 +==== Set Payload version ====
577 577  
578 -
579 -==== **Set Payload version** ====
580 -
581 581  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.
582 582  
583 -* **AT Command:**
621 +* AT Command:
584 584  
585 -(% class="box infomessage" %)
586 -(((
587 -**AT+PAYVER: Set PAYVER field = 1**
588 -)))
623 +AT+PAYVER: Set PAYVER field = 1
589 589  
590 -* **Downlink Payload:**
591 591  
592 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
626 +* Downlink Payload:
593 593  
594 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
628 +0xAE 01   à Set PAYVER field =  0x01
595 595  
630 +0xAE 0F   à Set PAYVER field =  0x0F
596 596  
597 597  
598 -==== **Set RS485 Sampling Commands** ====
633 +==== Set RS485 Sampling Commands ====
599 599  
600 -AT+COMMANDx or AT+DATACUTx
635 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
601 601  
602 -These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
637 +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]].
603 603  
604 604  
605 -* **AT Command:**
640 +* AT Command:
606 606  
607 -(% class="box infomessage" %)
608 -(((
609 -**AT+COMMANDx: Configure RS485 read command to sensor.**
610 -)))
642 +AT+COMMANDx: Configure RS485 read command to sensor.
611 611  
612 -(% class="box infomessage" %)
613 -(((
614 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
615 -)))
644 +AT+DATACUTx: Configure how to handle return from RS485 devices.
616 616  
646 +AT+SEARCHx: Configure search command
617 617  
618 -* **Downlink Payload:**
619 619  
620 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
649 +* Downlink Payload:
621 621  
622 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
651 +0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
623 623  
653 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
654 +
624 624  Format: AF MM NN LL XX XX XX XX YY
625 625  
626 626  Where:
627 627  
628 628  * MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
629 -* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
630 -* LL:  The length of AT+COMMAND or AT+DATACUT command
660 +* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
661 +* LL: The length of AT+COMMAND or AT+DATACUT command
631 631  * XX XX XX XX: AT+COMMAND or AT+DATACUT command
632 -* 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.
663 +* 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.
633 633  
634 -**Example:**
665 +Example:
635 635  
636 -(% 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
667 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
637 637  
638 -(% 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**
669 +**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
639 639  
640 -(% 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**
671 +**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
641 641  
642 642  
674 +0xAB downlink command can be used for set AT+SEARCHx
643 643  
644 -==== **Fast command to handle MODBUS device** ====
676 +Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
645 645  
678 +* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
679 +* 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
680 +
681 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
682 +
683 +
684 +==== Fast command to handle MODBUS device ====
685 +
646 646  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]].
647 647  
648 648  This command is valid since v1.3 firmware version
649 649  
650 -AT+MBFUN 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.
651 651  
691 +AT+MBFUN has only two value:
652 652  
653 -**Example:**
693 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
654 654  
655 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
656 -* 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.
657 -* 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.
695 +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.
658 658  
659 -[[image:image-20220602165351-6.png]]
697 +* AT+MBFUN=0: Disable Modbus fast reading.
660 660  
661 -[[image:image-20220602165351-7.png]]
699 +Example:
662 662  
701 +* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
702 +* 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.
703 +* 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.
663 663  
705 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
664 664  
665 -==== **RS485 command timeout** ====
666 666  
667 -Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
708 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
668 668  
669 -Default value: 0, range:  0 ~~ 65 seconds
670 670  
671 -* **AT Command:**
711 +* Downlink Commands:
672 672  
673 -(% class="box infomessage" %)
674 -(((
675 -**AT+CMDDLaa=hex(bb cc)*1000**
676 -)))
713 +A9 aa -à Same as AT+MBFUN=aa
677 677  
678 -**Example:**
679 679  
680 -**AT+CMDDL1=1000** to send the open time to 1000ms
716 +==== RS485 command timeout ====
681 681  
718 +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.
682 682  
683 -* **Downlink Payload:**
720 +Default value: 0, range:  0 ~~ 5 seconds
684 684  
685 -**0x AA aa bb cc**
686 686  
687 -Same as: AT+CMDDLaa=hex(bb cc)*1000
723 +* AT Command:
688 688  
689 - **Example:**
725 +AT+CMDDLaa=hex(bb cc)
690 690  
691 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
727 +Example:
692 692  
729 +**AT+CMDDL1=1000** to send the open time to 1000ms
693 693  
694 694  
695 -==== **Uplink payload mode** ====
732 +* Downlink Payload:
696 696  
697 -Define to use one uplink or multiple uplinks for the sampling.
734 +0x AA aa bb cc
698 698  
699 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
736 +Same as: AT+CMDDLaa=hex(bb cc)
700 700  
701 -* **AT Command:**
738 + Example:
702 702  
703 -(% class="box infomessage" %)
704 -(((
705 -**AT+DATAUP=0**
706 -)))
740 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
707 707  
708 -(% class="box infomessage" %)
709 -(((
710 -**AT+DATAUP=1**
711 -)))
712 712  
743 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
713 713  
714 -* **Downlink Payload:**
745 +Define to use one uplink or multiple uplinks for the sampling.
715 715  
716 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
747 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
717 717  
718 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
749 +* AT Command:
719 719  
751 +AT+DATAUP=0
720 720  
753 +AT+DATAUP=1
721 721  
722 -==== **Manually trigger an Uplink** ====
723 723  
724 -Ask device to send an uplink immediately.
756 +* Downlink Payload:
725 725  
726 -* **AT Command:**
758 +0xAD 00   à Same as AT+DATAUP=0
727 727  
728 -No AT Command for this, user can press the [[ACT button>>path:#Button]] for 1 second for the same.
760 +0xAD 01   à Same as AT+DATAUP=1
729 729  
730 730  
731 -* **Downlink Payload:**
763 +==== Manually trigger an Uplink ====
732 732  
733 -**0x08 FF**, RS485-LN will immediately send an uplink.
765 +Ask device to send an uplink immediately.
734 734  
767 +* Downlink Payload:
735 735  
736 -==== ====
769 +0x08 FF, RS485-BL will immediately send an uplink.
737 737  
738 -==== **Clear RS485 Command** ====
739 739  
772 +==== Clear RS485 Command ====
773 +
740 740  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
741 741  
742 -* **AT Command:**
743 743  
777 +* AT Command:
778 +
744 744  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
745 745  
746 746  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
... ... @@ -748,50 +748,43 @@
748 748  Example screen shot after clear all RS485 commands. 
749 749  
750 750  
786 +
751 751  The uplink screen shot is:
752 752  
753 -[[image:1654160691922-496.png]][[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
789 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
754 754  
755 755  
756 -* **Downlink Payload:**
792 +* Downlink Payload:
757 757  
758 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
794 +0x09 aa bb same as AT+CMDEAR=aa,bb
759 759  
760 760  
797 +==== Set Serial Communication Parameters ====
761 761  
762 -==== **Set Serial Communication Parameters** ====
763 -
764 764  Set the Rs485 serial communication parameters:
765 765  
766 -* **AT Command:**
801 +* AT Command:
767 767  
768 768  Set Baud Rate:
769 769  
770 -(% class="box infomessage" %)
771 -(((
772 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
773 -)))
805 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
774 774  
775 -Set UART Parity
776 776  
777 -(% class="box infomessage" %)
778 -(((
779 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
780 -)))
808 +Set UART parity
781 781  
810 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
811 +
812 +
782 782  Set STOPBIT
783 783  
784 -(% class="box infomessage" %)
785 -(((
786 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
787 -)))
815 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
788 788  
789 789  
790 -* **Downlink Payload:**
818 +* Downlink Payload:
791 791  
792 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
820 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
793 793  
794 -**Example:**
822 +Example:
795 795  
796 796  * A7 01 00 60   same as AT+BAUDR=9600
797 797  * A7 01 04 80  same as AT+BAUDR=115200
... ... @@ -801,279 +801,287 @@
801 801  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
802 802  
803 803  
804 -== 3.6 Listening mode for RS485 network ==
832 +==== Control output power duration ====
805 805  
806 -This feature support since firmware v1.4
834 +User can set the output power duration before each sampling.
807 807  
808 -RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
836 +* AT Command:
809 809  
810 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
838 +Example:
811 811  
812 -To enable the listening mode, use can run the command AT+RXMODE.
840 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
813 813  
842 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
814 814  
815 -(% border="1" style="background-color:#ffffcc; width:500px" %)
816 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
817 -|(% style="width:161px" %)AT+RXMODE=1,10 |(% style="width:337px" %)Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
818 -|(% style="width:161px" %)AT+RXMODE=2,500|(% style="width:337px" %)Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
819 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
820 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
821 821  
822 -**Downlink Command:**
845 +* LoRaWAN Downlink Command:
823 823  
824 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
847 +07 01 aa bb  Same as AT+5VT=(aa bb)
825 825  
849 +07 02 aa bb  Same as AT+3V3T=(aa bb)
826 826  
827 -**Example**:
828 828  
829 -The RS485-LN is set to AT+RXMODE=2,1000
830 830  
831 -There is a two Modbus commands in the RS485 network as below:
832 832  
833 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
854 +1.
855 +11. Buttons
834 834  
835 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
857 +|**Button**|**Feature**
858 +|**RST**|Reboot RS485-BL
836 836  
837 -RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b  (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
860 +1.
861 +11. +3V3 Output
838 838  
839 -[[image:image-20220602171200-9.png]]
863 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
840 840  
865 +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. 
841 841  
842 -(% style="color:red" %)Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.
843 843  
868 +The +3V3 output time can be controlled by AT Command.
844 844  
845 -== 3.7 Buttons ==
870 +**AT+3V3T=1000**
846 846  
872 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
847 847  
848 -(% border="1" style="background-color:#f7faff; width:500px" %)
849 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
850 -|**ACT**|(% style="width:1420px" %)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**
851 -|**RST**|(% style="width:1420px" %)Reboot RS485
852 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>path:#upgrade_image]]
853 853  
854 -== 3.8 LEDs ==
875 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
855 855  
856 -(% border="1" style="background-color:#f7faff; width:500px" %)
857 -|=**LEDs**|=**Feature**
858 -|**PWR**|Always on if there is power
859 -|**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.
860 860  
861 -= 4. Case Study =
878 +1.
879 +11. +5V Output
862 862  
863 -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]]
881 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
864 864  
883 +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. 
865 865  
866 -= 5. Use AT Command =
867 867  
868 -== 5.1 Access AT Command ==
886 +The 5V output time can be controlled by AT Command.
869 869  
870 -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.
888 +**AT+5VT=1000**
871 871  
872 -[[image:1654162355560-817.png]]
890 +Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
873 873  
874 874  
875 -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:
893 +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.
876 876  
877 -[[image:1654162368066-342.png]]
878 878  
879 879  
880 -More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]]
881 881  
898 +1.
899 +11. LEDs
882 882  
883 -== 5.2 Common AT Command Sequence ==
901 +|**LEDs**|**Feature**
902 +|**LED1**|Blink when device transmit a packet.
884 884  
885 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
904 +1.
905 +11. Switch Jumper
886 886  
887 -If device has not joined network yet:
907 +|**Switch Jumper**|**Feature**
908 +|**SW1**|(((
909 +ISP position: Upgrade firmware via UART
888 888  
889 -(% class="box infomessage" %)
890 -(((
891 -**AT+FDR**
911 +Flash position: Configure device, check running status.
892 892  )))
913 +|**SW2**|(((
914 +5V position: set to compatible with 5v I/O.
893 893  
894 -(% class="box infomessage" %)
895 -(((
896 -**AT+NJM=0**
916 +3.3v position: set to compatible with 3.3v I/O.,
897 897  )))
898 898  
899 -(% class="box infomessage" %)
900 -(((
901 -**ATZ**
902 -)))
919 ++3.3V: is always ON
903 903  
921 ++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
904 904  
905 -If device already joined network:
923 +1. Case Study
906 906  
907 -(% class="box infomessage" %)
908 -(((
909 -**AT+NJM=0**
910 -)))
925 +User can check this URL for some case studies.
911 911  
912 -(% class="box infomessage" %)
913 -(((
914 -**ATZ**
915 -)))
927 +[[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]]
916 916  
917 917  
918 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
919 919  
920 920  
921 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
932 +1. Use AT Command
933 +11. Access AT Command
922 922  
923 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
935 +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.
924 924  
925 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
937 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
926 926  
927 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
928 928  
929 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
940 +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:
930 930  
931 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
942 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
932 932  
933 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
934 934  
935 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
936 936  
937 -(% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
946 +More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
938 938  
939 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
940 940  
941 941  
942 -(% style="color:red" %)**Note:**
950 +1.
951 +11. Common AT Command Sequence
952 +111. Multi-channel ABP mode (Use with SX1301/LG308)
943 943  
944 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
945 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
946 -3. 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.
947 -4. 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
954 +If device has not joined network yet:
948 948  
949 -[[image:1654162478620-421.png]]
956 +AT+FDR
950 950  
958 +AT+NJM=0
951 951  
952 -= 6. FAQ =
960 +ATZ
953 953  
954 -== 6.1 How to upgrade the image? ==
955 955  
956 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
963 +If device already joined network:
957 957  
958 -* Support new features
959 -* For bug fix
960 -* Change LoRaWAN bands.
965 +AT+NJM=0
961 961  
962 -Below shows the hardware connection for how to upload an image to RS485-LN:
967 +ATZ
963 963  
964 -[[image:1654162535040-878.png]]
969 +1.
970 +11.
971 +111. Single-channel ABP mode (Use with LG01/LG02)
965 965  
966 -**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]].
973 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
967 967  
968 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
975 +AT+NJM=0 Set to ABP mode
969 969  
970 -**Step3: **Open flashloader; choose the correct COM port to update.
977 +AT+ADR=0 Set the Adaptive Data Rate Off
971 971  
972 -(% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
979 +AT+DR=5  Set Data Rate
973 973  
981 +AT+TDC=60000  Set transmit interval to 60 seconds
974 974  
975 -[[image:image-20220602175818-12.png]]
983 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
976 976  
985 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
977 977  
978 -[[image:image-20220602175848-13.png]]
987 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
979 979  
989 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
980 980  
981 -[[image:image-20220602175912-14.png]]
991 +ATZ          Reset MCU
982 982  
993 +**Note:**
983 983  
984 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
995 +1. Make sure the device is set to ABP mode in the IoT Server.
996 +1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
997 +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.
998 +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
985 985  
986 -[[image:image-20220602175638-10.png]]
1000 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
987 987  
988 988  
989 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
1003 +1. FAQ
1004 +11. How to upgrade the image?
990 990  
991 -User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1006 +The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
992 992  
1008 +* Support new features
1009 +* For bug fix
1010 +* Change LoRaWAN bands.
993 993  
994 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1012 +Below shows the hardware connection for how to upload an image to RS485-BL:
995 995  
996 -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"]].
1014 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
997 997  
1016 +**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]].
998 998  
999 -== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1018 +**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1000 1000  
1001 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1020 +**Step3: **Open flashloader; choose the correct COM port to update.
1002 1002  
1003 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1004 1004  
1023 +|(((
1024 +HOLD PRO then press the RST button, SYS will be ON, then click next
1025 +)))
1005 1005  
1006 -= 7. Trouble Shooting =
1027 +|(((
1028 +Board detected
1029 +)))
1007 1007  
1008 -== 7.1 Downlink doesn’t work, how to solve it? ==
1031 +|(((
1032 +
1033 +)))
1009 1009  
1010 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1035 +[[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]]
1011 1011  
1012 1012  
1013 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1014 1014  
1015 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1039 +[[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]]
1016 1016  
1017 1017  
1018 -= 8. Order Info =
1042 +[[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]]
1019 1019  
1020 -(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1021 1021  
1022 -(% style="color:blue" %)**XXX:**
1045 +1.
1046 +11. How to change the LoRa Frequency Bands/Region?
1023 1023  
1024 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1025 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1026 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1027 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1028 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1029 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1030 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1031 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1032 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1033 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1048 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1034 1034  
1035 -= 9.Packing Info =
1036 1036  
1037 1037  
1038 -**Package Includes**:
1052 +1.
1053 +11. How many RS485-Slave can RS485-BL connects?
1039 1039  
1040 -* RS485-LN x 1
1041 -* Stick Antenna for LoRa RF part x 1
1042 -* Program cable x 1
1055 +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]].
1043 1043  
1044 -**Dimension and weight**:
1045 1045  
1046 -* Device Size: 13.5 x 7 x 3 cm
1047 -* Device Weight: 105g
1048 -* Package Size / pcs : 14.5 x 8 x 5 cm
1049 -* Weight / pcs : 170g
1050 1050  
1051 -= 10. FCC Caution for RS485LN-US915 =
1052 1052  
1053 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1060 +1. Trouble Shooting     
1061 +11. Downlink doesn’t work, how to solve it?
1054 1054  
1055 -This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
1063 +Please see this link for debug:
1056 1056  
1065 +[[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]] 
1057 1057  
1058 -**IMPORTANT NOTE:**
1059 1059  
1060 -**Note: **This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
1061 1061  
1062 -—Reorient or relocate the receiving antenna.
1069 +1.
1070 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1063 1063  
1064 -—Increase the separation between the equipment and receiver.
1072 +It might about the channels mapping. Please see for detail.
1065 1065  
1066 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1074 +[[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]]
1067 1067  
1068 -—Consult the dealer or an experienced radio/TV technician for help.
1069 1069  
1070 1070  
1071 -**FCC Radiation Exposure Statement:**
1078 +1. Order Info
1072 1072  
1073 -This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
1080 +**Part Number: RS485-BL-XXX**
1074 1074  
1082 +**XXX:**
1075 1075  
1076 -= 11. Support =
1084 +* **EU433**: frequency bands EU433
1085 +* **EU868**: frequency bands EU868
1086 +* **KR920**: frequency bands KR920
1087 +* **CN470**: frequency bands CN470
1088 +* **AS923**: frequency bands AS923
1089 +* **AU915**: frequency bands AU915
1090 +* **US915**: frequency bands US915
1091 +* **IN865**: frequency bands IN865
1092 +* **RU864**: frequency bands RU864
1093 +* **KZ865: **frequency bands KZ865
1077 1077  
1095 +1. Packing Info
1096 +
1097 +**Package Includes**:
1098 +
1099 +* RS485-BL x 1
1100 +* Stick Antenna for LoRa RF part x 1
1101 +* Program cable x 1
1102 +
1103 +**Dimension and weight**:
1104 +
1105 +* Device Size: 13.5 x 7 x 3 cm
1106 +* Device Weight: 105g
1107 +* Package Size / pcs : 14.5 x 8 x 5 cm
1108 +* Weight / pcs : 170g
1109 +
1110 +1. Support
1111 +
1078 1078  * 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.
1079 -* 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 [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
1113 +* 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
1114 +
1115 +[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
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