Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 38.2 >
edited by Xiaoling
on 2022/06/02 16:10
To version < 43.1 >
edited by Xiaoling
on 2022/06/02 16:53
>
Change comment: Uploaded new attachment "image-20220602165351-6.png", version {1}

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... ... @@ -470,110 +470,68 @@
470 470  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.
471 471  
472 472  
473 -1.
474 -11. Uplink Payload
473 +== 3.4 Uplink Payload ==
475 475  
476 -|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
477 -|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" %)(((
478 478  Battery(mV)
479 479  
480 480  &
481 481  
482 482  Interrupt _Flag
483 -)))|(((
483 +)))|(% style="width:116px" %)(((
484 484  PAYLOAD_VER
485 485  
486 486  
487 -)))|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.
488 488  
489 489  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
490 490  
491 491  
492 -function Decoder(bytes, port) {
492 +== 3.5 Configure RS485-BL via AT or Downlink ==
493 493  
494 -~/~/Payload Formats of RS485-BL Deceive
494 +User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
495 495  
496 -return {
497 -
498 - ~/~/Battery,units:V
499 -
500 - BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
501 -
502 - ~/~/GPIO_EXTI 
503 -
504 - EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
505 -
506 - ~/~/payload of version
507 -
508 - Pay_ver:bytes[2],
509 -
510 - };
511 -
512 - }
513 -
514 -
515 -
516 -
517 -
518 -
519 -
520 -TTN V3 uplink screen shot.
521 -
522 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
523 -
524 -1.
525 -11. Configure RS485-BL via AT or Downlink
526 -
527 -User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
528 -
529 529  There are two kinds of Commands:
530 530  
531 -* **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]]
532 532  
533 -* **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:
534 534  
535 -1.
536 -11.
537 -111. Common Commands:
502 +=== 3.5.1 Common Commands ===
538 538  
539 -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]]
540 540  
541 541  
542 -1.
543 -11.
544 -111. Sensor related commands:
507 +=== 3.5.2 Sensor related commands ===
545 545  
546 -==== 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.
547 547  
548 -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"]]
549 549  
550 -* 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)
551 551  
552 -**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
553 553  
554 -**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 ===
555 555  
518 +==== ====
556 556  
557 -* Downlink Payload
520 +==== **RS485 Debug Command** ====
558 558  
559 -**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.
560 560  
524 +* **AT Command**
561 561  
526 +(% class="box infomessage" %)
527 +(((
528 +**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
529 +)))
562 562  
563 -==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
531 +m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
564 564  
565 -This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
533 +* **Downlink Payload**
566 566  
567 -* AT Command
568 -
569 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
570 -
571 -m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
572 -
573 -
574 -
575 -* Downlink Payload
576 -
577 577  Format: A8 MM NN XX XX XX XX YY
578 578  
579 579  Where:
... ... @@ -581,9 +581,12 @@
581 581  * MM: 1: add CRC-16/MODBUS ; 0: no CRC
582 582  * NN: The length of RS485 command
583 583  * XX XX XX XX: RS485 command total NN bytes
584 -* 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.
585 585  
586 -**Example 1:**
547 +**Example 1** ~-~-> Configure without ask for uplink (YY=0)
587 587  
588 588  To connect a Modbus Alarm with below commands.
589 589  
... ... @@ -593,59 +593,76 @@
593 593  
594 594  So if user want to use downlink command to control to RS485 Alarm, he can use:
595 595  
596 -**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
597 597  
598 -**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
599 599  
600 600  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.
601 601  
602 602  
603 -**Example 2:**
564 +**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
604 604  
605 -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**
606 606  
607 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
608 608  
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:
609 609  
571 + **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
610 610  
573 + [[image:1654159460680-153.png]]
611 611  
612 -==== Set Payload version ====
613 613  
576 +
577 +==== **Set Payload version** ====
578 +
614 614  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.
615 615  
616 -* AT Command:
581 +* **AT Command:**
617 617  
618 -AT+PAYVER: Set PAYVER field = 1
583 +(% class="box infomessage" %)
584 +(((
585 +**AT+PAYVER: Set PAYVER field = 1**
586 +)))
619 619  
620 620  
621 -* Downlink Payload:
589 +* **Downlink Payload:**
622 622  
623 -0xAE 01   à Set PAYVER field =  0x01
591 +**0xAE 01**  ~-~-> Set PAYVER field =  0x01
624 624  
625 -0xAE 0F   à Set PAYVER field =  0x0F
593 +**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
626 626  
627 627  
628 -==== Set RS485 Sampling Commands ====
629 629  
597 +==== **Set RS485 Sampling Commands** ====
598 +
630 630  AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
631 631  
632 -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"]].
633 633  
634 634  
635 -* AT Command:
604 +* **AT Command:**
636 636  
637 -AT+COMMANDx: Configure RS485 read command to sensor.
606 +(% class="box infomessage" %)
607 +(((
608 +**AT+COMMANDx: Configure RS485 read command to sensor.**
609 +)))
638 638  
639 -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 +)))
640 640  
641 -AT+SEARCHx: Configure search command
616 +(% class="box infomessage" %)
617 +(((
618 +**AT+SEARCHx: Configure search command**
619 +)))
642 642  
643 643  
644 -* Downlink Payload:
622 +* **Downlink Payload:**
645 645  
646 -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.
647 647  
648 -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.
649 649  
650 650  Format: AF MM NN LL XX XX XX XX YY
651 651  
... ... @@ -652,23 +652,23 @@
652 652  Where:
653 653  
654 654  * MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
655 -* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
656 -* 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
657 657  * XX XX XX XX: AT+COMMAND or AT+DATACUT command
658 -* 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.
659 659  
660 -Example:
638 +**Example:**
661 661  
662 -**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
663 663  
664 -**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**
665 665  
666 -**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**
667 667  
668 668  
669 -0xAB downlink command can be used for set AT+SEARCHx
647 +**0xAB** downlink command can be used for set AT+SEARCHx
670 670  
671 -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
672 672  
673 673  * AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
674 674  * 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
... ... @@ -676,145 +676,164 @@
676 676  **AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
677 677  
678 678  
679 -==== Fast command to handle MODBUS device ====
680 680  
658 +==== **Fast command to handle MODBUS device** ====
659 +
681 681  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]].
682 682  
683 683  This command is valid since v1.3 firmware version
684 684  
685 685  
686 -AT+MBFUN has only two value:
665 +**AT+MBFUN has only two value:**
687 687  
688 -* 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
689 689  
690 690  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.
691 691  
692 -* AT+MBFUN=0: Disable Modbus fast reading.
671 +* **AT+MBFUN=0**: Disable Modbus fast reading.
693 693  
694 -Example:
673 +**Example:**
695 695  
696 696  * AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
697 697  * 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.
698 698  * 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.
699 699  
700 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
679 +[[image:1654133913295-597.png]]
701 701  
702 702  
703 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
682 +[[image:1654133954153-643.png]]
704 704  
705 705  
706 -* Downlink Commands:
685 +* **Downlink Commands:**
707 707  
708 -A9 aa -à Same as AT+MBFUN=aa
687 +**A9 aa** ~-~-> Same as AT+MBFUN=aa
709 709  
710 710  
711 -==== RS485 command timeout ====
712 712  
691 +==== **RS485 command timeout** ====
692 +
713 713  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.
714 714  
715 715  Default value: 0, range:  0 ~~ 5 seconds
716 716  
717 717  
718 -* AT Command:
698 +* **AT Command:**
719 719  
720 -AT+CMDDLaa=hex(bb cc)
700 +(% class="box infomessage" %)
701 +(((
702 +**AT+CMDDLaa=hex(bb cc)**
703 +)))
721 721  
722 -Example:
705 +**Example:**
723 723  
724 724  **AT+CMDDL1=1000** to send the open time to 1000ms
725 725  
726 726  
727 -* Downlink Payload:
710 +* **Downlink Payload:**
728 728  
729 729  0x AA aa bb cc
730 730  
731 731  Same as: AT+CMDDLaa=hex(bb cc)
732 732  
733 - Example:
716 + **Example:**
734 734  
735 - 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
718 + **0xAA 01 03 E8**  ~-~-> Same as **AT+CMDDL1=1000 ms**
736 736  
737 737  
738 -==== [[Uplink>>path:#downlink_A8]] payload mode ====
739 739  
722 +==== **Uplink payload mode** ====
723 +
740 740  Define to use one uplink or multiple uplinks for the sampling.
741 741  
742 -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"]]
743 743  
744 -* AT Command:
728 +* **AT Command:**
745 745  
746 -AT+DATAUP=0
730 +(% class="box infomessage" %)
731 +(((
732 +**AT+DATAUP=0**
733 +)))
747 747  
748 -AT+DATAUP=1
735 +(% class="box infomessage" %)
736 +(((
737 +**AT+DATAUP=1**
738 +)))
749 749  
750 750  
751 -* Downlink Payload:
741 +* **Downlink Payload:**
752 752  
753 -0xAD 00   à Same as AT+DATAUP=0
743 +**0xAD 00**  **~-~->** Same as AT+DATAUP=0
754 754  
755 -0xAD 01   à Same as AT+DATAUP=1
745 +**0xAD 01**  **~-~->** Same as AT+DATAUP=1
756 756  
757 757  
758 -==== Manually trigger an Uplink ====
759 759  
749 +==== **Manually trigger an Uplink** ====
750 +
760 760  Ask device to send an uplink immediately.
761 761  
762 -* Downlink Payload:
753 +* **Downlink Payload:**
763 763  
764 -0x08 FF, RS485-BL will immediately send an uplink.
755 +**0x08 FF**, RS485-BL will immediately send an uplink.
765 765  
766 766  
767 -==== Clear RS485 Command ====
768 768  
759 +==== **Clear RS485 Command** ====
760 +
769 769  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
770 770  
771 771  
772 -* AT Command:
764 +* **AT Command:**
773 773  
774 -**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
775 775  
776 -Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
777 -
778 778  Example screen shot after clear all RS485 commands. 
779 779  
780 780  
781 -
782 782  The uplink screen shot is:
783 783  
784 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
773 +[[image:1654134704555-320.png]]
785 785  
786 786  
787 -* Downlink Payload:
776 +* **Downlink Payload:**
788 788  
789 -0x09 aa bb same as AT+CMDEAR=aa,bb
778 +**0x09 aa bb** same as AT+CMDEAR=aa,bb
790 790  
791 791  
792 -==== Set Serial Communication Parameters ====
793 793  
782 +==== **Set Serial Communication Parameters** ====
783 +
794 794  Set the Rs485 serial communication parameters:
795 795  
796 -* AT Command:
786 +* **AT Command:**
797 797  
798 798  Set Baud Rate:
799 799  
800 -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 +)))
801 801  
795 +Set UART Parity
802 802  
803 -Set UART parity
797 +(% class="box infomessage" %)
798 +(((
799 +**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
800 +)))
804 804  
805 -AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
806 -
807 -
808 808  Set STOPBIT
809 809  
810 -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 +)))
811 811  
812 812  
813 -* Downlink Payload:
810 +* **Downlink Payload:**
814 814  
815 -A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
812 +**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
816 816  
817 -Example:
814 +**Example:**
818 818  
819 819  * A7 01 00 60   same as AT+BAUDR=9600
820 820  * A7 01 04 80  same as AT+BAUDR=115200
... ... @@ -824,287 +824,22 @@
824 824  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
825 825  
826 826  
827 -==== Control output power duration ====
828 828  
825 +==== **Control output power duration** ====
826 +
829 829  User can set the output power duration before each sampling.
830 830  
831 -* AT Command:
829 +* **AT Command:**
832 832  
833 -Example:
831 +**Example:**
834 834  
835 -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.
836 836  
837 -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.
838 838  
839 839  
840 -* LoRaWAN Downlink Command:
838 +* **LoRaWAN Downlink Command:**
841 841  
842 -07 01 aa bb  Same as AT+5VT=(aa bb)
840 +**07 01 aa bb**  Same as AT+5VT=(aa bb)
843 843  
844 -07 02 aa bb  Same as AT+3V3T=(aa bb)
845 -
846 -
847 -
848 -
849 -1.
850 -11. Buttons
851 -
852 -|**Button**|**Feature**
853 -|**RST**|Reboot RS485-BL
854 -
855 -1.
856 -11. +3V3 Output
857 -
858 -RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
859 -
860 -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. 
861 -
862 -
863 -The +3V3 output time can be controlled by AT Command.
864 -
865 -**AT+3V3T=1000**
866 -
867 -Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
868 -
869 -
870 -By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
871 -
872 -
873 -1.
874 -11. +5V Output
875 -
876 -RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
877 -
878 -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. 
879 -
880 -
881 -The 5V output time can be controlled by AT Command.
882 -
883 -**AT+5VT=1000**
884 -
885 -Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
886 -
887 -
888 -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.
889 -
890 -
891 -
892 -
893 -1.
894 -11. LEDs
895 -
896 -|**LEDs**|**Feature**
897 -|**LED1**|Blink when device transmit a packet.
898 -
899 -1.
900 -11. Switch Jumper
901 -
902 -|**Switch Jumper**|**Feature**
903 -|**SW1**|(((
904 -ISP position: Upgrade firmware via UART
905 -
906 -Flash position: Configure device, check running status.
907 -)))
908 -|**SW2**|(((
909 -5V position: set to compatible with 5v I/O.
910 -
911 -3.3v position: set to compatible with 3.3v I/O.,
912 -)))
913 -
914 -+3.3V: is always ON
915 -
916 -+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
917 -
918 -1. Case Study
919 -
920 -User can check this URL for some case studies.
921 -
922 -[[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]]
923 -
924 -
925 -
926 -
927 -1. Use AT Command
928 -11. Access AT Command
929 -
930 -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.
931 -
932 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
933 -
934 -
935 -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:
936 -
937 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
938 -
939 -
940 -
941 -More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
942 -
943 -
944 -
945 -1.
946 -11. Common AT Command Sequence
947 -111. Multi-channel ABP mode (Use with SX1301/LG308)
948 -
949 -If device has not joined network yet:
950 -
951 -AT+FDR
952 -
953 -AT+NJM=0
954 -
955 -ATZ
956 -
957 -
958 -If device already joined network:
959 -
960 -AT+NJM=0
961 -
962 -ATZ
963 -
964 -1.
965 -11.
966 -111. Single-channel ABP mode (Use with LG01/LG02)
967 -
968 -AT+FDR   Reset Parameters to Factory Default, Keys Reserve
969 -
970 -AT+NJM=0 Set to ABP mode
971 -
972 -AT+ADR=0 Set the Adaptive Data Rate Off
973 -
974 -AT+DR=5  Set Data Rate
975 -
976 -AT+TDC=60000  Set transmit interval to 60 seconds
977 -
978 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz
979 -
980 -AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
981 -
982 -AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
983 -
984 -AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
985 -
986 -ATZ          Reset MCU
987 -
988 -**Note:**
989 -
990 -1. Make sure the device is set to ABP mode in the IoT Server.
991 -1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
992 -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.
993 -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
994 -
995 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
996 -
997 -
998 -1. FAQ
999 -11. How to upgrade the image?
1000 -
1001 -The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1002 -
1003 -* Support new features
1004 -* For bug fix
1005 -* Change LoRaWAN bands.
1006 -
1007 -Below shows the hardware connection for how to upload an image to RS485-BL:
1008 -
1009 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1010 -
1011 -**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]].
1012 -
1013 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1014 -
1015 -**Step3: **Open flashloader; choose the correct COM port to update.
1016 -
1017 -
1018 -|(((
1019 -HOLD PRO then press the RST button, SYS will be ON, then click next
1020 -)))
1021 -
1022 -|(((
1023 -Board detected
1024 -)))
1025 -
1026 -|(((
1027 -
1028 -)))
1029 -
1030 -[[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]]
1031 -
1032 -
1033 -
1034 -[[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]]
1035 -
1036 -
1037 -[[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]]
1038 -
1039 -
1040 -1.
1041 -11. How to change the LoRa Frequency Bands/Region?
1042 -
1043 -User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1044 -
1045 -
1046 -
1047 -1.
1048 -11. How many RS485-Slave can RS485-BL connects?
1049 -
1050 -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]].
1051 -
1052 -
1053 -
1054 -
1055 -1. Trouble Shooting     
1056 -11. Downlink doesn’t work, how to solve it?
1057 -
1058 -Please see this link for debug:
1059 -
1060 -[[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]] 
1061 -
1062 -
1063 -
1064 -1.
1065 -11. Why I can’t join TTN V3 in US915 /AU915 bands?
1066 -
1067 -It might about the channels mapping. Please see for detail.
1068 -
1069 -[[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]]
1070 -
1071 -
1072 -
1073 -1. Order Info
1074 -
1075 -**Part Number: RS485-BL-XXX**
1076 -
1077 -**XXX:**
1078 -
1079 -* **EU433**: frequency bands EU433
1080 -* **EU868**: frequency bands EU868
1081 -* **KR920**: frequency bands KR920
1082 -* **CN470**: frequency bands CN470
1083 -* **AS923**: frequency bands AS923
1084 -* **AU915**: frequency bands AU915
1085 -* **US915**: frequency bands US915
1086 -* **IN865**: frequency bands IN865
1087 -* **RU864**: frequency bands RU864
1088 -* **KZ865: **frequency bands KZ865
1089 -
1090 -1. Packing Info
1091 -
1092 -**Package Includes**:
1093 -
1094 -* RS485-BL x 1
1095 -* Stick Antenna for LoRa RF part x 1
1096 -* Program cable x 1
1097 -
1098 -**Dimension and weight**:
1099 -
1100 -* Device Size: 13.5 x 7 x 3 cm
1101 -* Device Weight: 105g
1102 -* Package Size / pcs : 14.5 x 8 x 5 cm
1103 -* Weight / pcs : 170g
1104 -
1105 -1. Support
1106 -
1107 -* 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.
1108 -* 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
1109 -
1110 -[[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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