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Summary

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Content
... ... @@ -6,18 +6,12 @@
6 6  **RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 -
10 -
11 11  **Table of Contents:**
12 12  
13 -{{toc/}}
14 14  
15 15  
16 16  
17 17  
18 -
19 -
20 -
21 21  = 1.Introduction =
22 22  
23 23  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
... ... @@ -80,9 +80,8 @@
80 80  * Preamble detection.
81 81  * 127 dB Dynamic Range RSSI.
82 82  * Automatic RF Sense and CAD with ultra-fast AFC.
83 -* Packet engine up to 256 bytes with CRC
77 +* Packet engine up to 256 bytes with CRC.
84 84  
85 -
86 86  == 1.3 Features ==
87 87  
88 88  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -94,7 +94,6 @@
94 94  * Support Modbus protocol
95 95  * Support Interrupt uplink (Since hardware version v1.2)
96 96  
97 -
98 98  == 1.4 Applications ==
99 99  
100 100  * Smart Buildings & Home Automation
... ... @@ -104,7 +104,6 @@
104 104  * Smart Cities
105 105  * Smart Factory
106 106  
107 -
108 108  == 1.5 Firmware Change log ==
109 109  
110 110  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -168,7 +168,7 @@
168 168  [[image:1653268227651-549.png||height="592" width="720"]]
169 169  
170 170  (((
171 -The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
162 +The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3:
172 172  )))
173 173  
174 174  (((
... ... @@ -220,7 +220,7 @@
220 220  
221 221  (((
222 222  (((
223 -There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
214 +There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
224 224  )))
225 225  
226 226  (((
... ... @@ -508,39 +508,46 @@
508 508  
509 509  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
510 510  
502 +
503 +
511 511  === 3.5.1 Common Commands ===
512 512  
513 513  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]]
514 514  
515 515  
516 -=== 3.5.2 Sensor related commands ===
509 +=== 3.5.2 Sensor related commands: ===
517 517  
518 -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.
511 +==== Choose Device Type (RS485 or TTL) ====
519 519  
520 -[[image:image-20220602163333-5.png||height="263" width="1160"]]
513 +RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
521 521  
522 -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)
515 +* AT Command
523 523  
517 +**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
524 524  
525 -=== 3.5.3 Sensor related commands ===
519 +**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
526 526  
527 527  
522 +* Downlink Payload
528 528  
529 -==== **RS485 Debug Command** ====
524 +**0A aa**     à same as AT+MOD=aa
530 530  
531 -This command is used to configure the RS485 devices; they won’t be used during sampling.
532 532  
533 -* **AT Command**
534 534  
535 -(% class="box infomessage" %)
536 -(((
537 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
538 -)))
528 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
539 539  
540 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
530 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
541 541  
542 -* **Downlink Payload**
532 +* AT Command
543 543  
534 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
535 +
536 +m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
537 +
538 +
539 +
540 +* Downlink Payload
541 +
544 544  Format: A8 MM NN XX XX XX XX YY
545 545  
546 546  Where:
... ... @@ -548,12 +548,9 @@
548 548  * MM: 1: add CRC-16/MODBUS ; 0: no CRC
549 549  * NN: The length of RS485 command
550 550  * XX XX XX XX: RS485 command total NN bytes
551 -* YY: How many bytes will be uplink from the return of this RS485 command,
552 -** if YY=0, RS485-LN will execute the downlink command without uplink;
553 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
554 -** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
549 +* 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
555 555  
556 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
551 +**Example 1:**
557 557  
558 558  To connect a Modbus Alarm with below commands.
559 559  
... ... @@ -563,190 +563,184 @@
563 563  
564 564  So if user want to use downlink command to control to RS485 Alarm, he can use:
565 565  
566 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
561 +**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
567 567  
568 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
563 +**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
569 569  
570 570  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.
571 571  
572 572  
573 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
568 +**Example 2:**
574 574  
575 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
570 +Check TTL Sensor return:
576 576  
572 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
577 577  
578 -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:
579 579  
580 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
581 581  
582 - [[image:1654159460680-153.png]]
583 583  
577 +==== Set Payload version ====
584 584  
585 -
586 -==== **Set Payload version** ====
587 -
588 588  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.
589 589  
590 -* **AT Command:**
581 +* AT Command:
591 591  
592 -(% class="box infomessage" %)
593 -(((
594 -**AT+PAYVER: Set PAYVER field = 1**
595 -)))
583 +AT+PAYVER: Set PAYVER field = 1
596 596  
597 -* **Downlink Payload:**
598 598  
599 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
586 +* Downlink Payload:
600 600  
601 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
588 +0xAE 01   à Set PAYVER field =  0x01
602 602  
590 +0xAE 0F   à Set PAYVER field =  0x0F
603 603  
604 604  
605 -==== **Set RS485 Sampling Commands** ====
593 +==== Set RS485 Sampling Commands ====
606 606  
607 -AT+COMMANDx or AT+DATACUTx
595 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
608 608  
609 -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"]].
597 +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]].
610 610  
611 611  
612 -* **AT Command:**
600 +* AT Command:
613 613  
614 -(% class="box infomessage" %)
615 -(((
616 -**AT+COMMANDx: Configure RS485 read command to sensor.**
617 -)))
602 +AT+COMMANDx: Configure RS485 read command to sensor.
618 618  
619 -(% class="box infomessage" %)
620 -(((
621 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
622 -)))
604 +AT+DATACUTx: Configure how to handle return from RS485 devices.
623 623  
606 +AT+SEARCHx: Configure search command
624 624  
625 -* **Downlink Payload:**
626 626  
627 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
609 +* Downlink Payload:
628 628  
629 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
611 +0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
630 630  
613 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
614 +
631 631  Format: AF MM NN LL XX XX XX XX YY
632 632  
633 633  Where:
634 634  
635 635  * MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
636 -* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
637 -* LL:  The length of AT+COMMAND or AT+DATACUT command
620 +* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
621 +* LL: The length of AT+COMMAND or AT+DATACUT command
638 638  * XX XX XX XX: AT+COMMAND or AT+DATACUT command
639 -* 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.
623 +* 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.
640 640  
641 -**Example:**
625 +Example:
642 642  
643 -(% 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
627 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
644 644  
645 -(% 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**
629 +**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
646 646  
647 -(% 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**
631 +**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
648 648  
649 649  
634 +0xAB downlink command can be used for set AT+SEARCHx
650 650  
651 -==== **Fast command to handle MODBUS device** ====
636 +Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
652 652  
638 +* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
639 +* 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
640 +
641 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
642 +
643 +
644 +==== Fast command to handle MODBUS device ====
645 +
653 653  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]].
654 654  
655 655  This command is valid since v1.3 firmware version
656 656  
657 -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.
658 658  
651 +AT+MBFUN has only two value:
659 659  
660 -**Example:**
653 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
661 661  
662 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
663 -* 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.
664 -* 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.
655 +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.
665 665  
666 -[[image:image-20220602165351-6.png]]
657 +* AT+MBFUN=0: Disable Modbus fast reading.
667 667  
668 -[[image:image-20220602165351-7.png]]
659 +Example:
669 669  
661 +* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
662 +* 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.
663 +* 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.
670 670  
665 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
671 671  
672 -==== **RS485 command timeout** ====
673 673  
674 -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.
668 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
675 675  
676 -Default value: 0, range:  0 ~~ 65 seconds
677 677  
678 -* **AT Command:**
671 +* Downlink Commands:
679 679  
680 -(% class="box infomessage" %)
681 -(((
682 -**AT+CMDDLaa=hex(bb cc)*1000**
683 -)))
673 +A9 aa -à Same as AT+MBFUN=aa
684 684  
685 -**Example:**
686 686  
687 -**AT+CMDDL1=1000** to send the open time to 1000ms
676 +==== RS485 command timeout ====
688 688  
678 +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.
689 689  
690 -* **Downlink Payload:**
680 +Default value: 0, range:  0 ~~ 5 seconds
691 691  
692 -**0x AA aa bb cc**
693 693  
694 -Same as: AT+CMDDLaa=hex(bb cc)*1000
683 +* AT Command:
695 695  
696 - **Example:**
685 +AT+CMDDLaa=hex(bb cc)
697 697  
698 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
687 +Example:
699 699  
689 +**AT+CMDDL1=1000** to send the open time to 1000ms
700 700  
701 701  
702 -==== **Uplink payload mode** ====
692 +* Downlink Payload:
703 703  
704 -Define to use one uplink or multiple uplinks for the sampling.
694 +0x AA aa bb cc
705 705  
706 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
696 +Same as: AT+CMDDLaa=hex(bb cc)
707 707  
708 -* **AT Command:**
698 + Example:
709 709  
710 -(% class="box infomessage" %)
711 -(((
712 -**AT+DATAUP=0**
713 -)))
700 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
714 714  
715 -(% class="box infomessage" %)
716 -(((
717 -**AT+DATAUP=1**
718 -)))
719 719  
703 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
720 720  
721 -* **Downlink Payload:**
705 +Define to use one uplink or multiple uplinks for the sampling.
722 722  
723 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
707 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
724 724  
725 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
709 +* AT Command:
726 726  
711 +AT+DATAUP=0
727 727  
713 +AT+DATAUP=1
728 728  
729 -==== **Manually trigger an Uplink** ====
730 730  
731 -Ask device to send an uplink immediately.
716 +* Downlink Payload:
732 732  
733 -* **AT Command:**
718 +0xAD 00   à Same as AT+DATAUP=0
734 734  
735 -No AT Command for this, user can press the [[ACT button>>path:#Button]] for 1 second for the same.
720 +0xAD 01   à Same as AT+DATAUP=1
736 736  
737 737  
738 -* **Downlink Payload:**
723 +==== Manually trigger an Uplink ====
739 739  
740 -**0x08 FF**, RS485-LN will immediately send an uplink.
725 +Ask device to send an uplink immediately.
741 741  
727 +* Downlink Payload:
742 742  
729 +0x08 FF, RS485-BL will immediately send an uplink.
743 743  
744 -==== **Clear RS485 Command** ====
745 745  
732 +==== Clear RS485 Command ====
733 +
746 746  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
747 747  
748 -* **AT Command:**
749 749  
737 +* AT Command:
738 +
750 750  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
751 751  
752 752  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
... ... @@ -754,50 +754,43 @@
754 754  Example screen shot after clear all RS485 commands. 
755 755  
756 756  
746 +
757 757  The uplink screen shot is:
758 758  
759 -[[image:1654160691922-496.png]][[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
749 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
760 760  
761 761  
762 -* **Downlink Payload:**
752 +* Downlink Payload:
763 763  
764 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
754 +0x09 aa bb same as AT+CMDEAR=aa,bb
765 765  
766 766  
757 +==== Set Serial Communication Parameters ====
767 767  
768 -==== **Set Serial Communication Parameters** ====
769 -
770 770  Set the Rs485 serial communication parameters:
771 771  
772 -* **AT Command:**
761 +* AT Command:
773 773  
774 774  Set Baud Rate:
775 775  
776 -(% class="box infomessage" %)
777 -(((
778 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
779 -)))
765 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
780 780  
781 -Set UART Parity
782 782  
783 -(% class="box infomessage" %)
784 -(((
785 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
786 -)))
768 +Set UART parity
787 787  
770 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
771 +
772 +
788 788  Set STOPBIT
789 789  
790 -(% class="box infomessage" %)
791 -(((
792 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
793 -)))
775 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
794 794  
795 795  
796 -* **Downlink Payload:**
778 +* Downlink Payload:
797 797  
798 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
780 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
799 799  
800 -**Example:**
782 +Example:
801 801  
802 802  * A7 01 00 60   same as AT+BAUDR=9600
803 803  * A7 01 04 80  same as AT+BAUDR=115200
... ... @@ -807,283 +807,287 @@
807 807  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
808 808  
809 809  
810 -== 3.6 Listening mode for RS485 network ==
792 +==== Control output power duration ====
811 811  
812 -This feature support since firmware v1.4
794 +User can set the output power duration before each sampling.
813 813  
814 -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.
796 +* AT Command:
815 815  
816 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
798 +Example:
817 817  
818 -To enable the listening mode, use can run the command AT+RXMODE.
800 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
819 819  
802 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
820 820  
821 -(% border="1" style="background-color:#ffffcc; width:500px" %)
822 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
823 -|(% 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.
824 -|(% 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
825 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
826 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
827 827  
828 -**Downlink Command:**
805 +* LoRaWAN Downlink Command:
829 829  
830 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
807 +07 01 aa bb  Same as AT+5VT=(aa bb)
831 831  
809 +07 02 aa bb  Same as AT+3V3T=(aa bb)
832 832  
833 -**Example**:
834 834  
835 -The RS485-LN is set to AT+RXMODE=2,1000
836 836  
837 -There is a two Modbus commands in the RS485 network as below:
838 838  
839 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
814 +1.
815 +11. Buttons
840 840  
841 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
817 +|**Button**|**Feature**
818 +|**RST**|Reboot RS485-BL
842 842  
843 -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
820 +1.
821 +11. +3V3 Output
844 844  
845 -[[image:image-20220602171200-9.png]]
823 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
846 846  
825 +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. 
847 847  
848 -(% 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.
849 849  
828 +The +3V3 output time can be controlled by AT Command.
850 850  
851 -== 3.7 Buttons ==
830 +**AT+3V3T=1000**
852 852  
832 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
853 853  
854 -(% border="1" style="background-color:#f7faff; width:500px" %)
855 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
856 -|**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**
857 -|**RST**|(% style="width:1420px" %)Reboot RS485
858 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>path:#upgrade_image]]
859 859  
835 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
860 860  
861 -== 3.8 LEDs ==
862 862  
863 -(% border="1" style="background-color:#f7faff; width:500px" %)
864 -|=**LEDs**|=**Feature**
865 -|**PWR**|Always on if there is power
866 -|**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.
838 +1.
839 +11. +5V Output
867 867  
841 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
868 868  
869 -= 4. Case Study =
843 +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. 
870 870  
871 -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]]
872 872  
846 +The 5V output time can be controlled by AT Command.
873 873  
874 -= 5. Use AT Command =
848 +**AT+5VT=1000**
875 875  
876 -== 5.1 Access AT Command ==
850 +Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
877 877  
878 -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.
879 879  
880 -[[image:1654162355560-817.png]]
853 +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.
881 881  
882 882  
883 -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:
884 884  
885 -[[image:1654162368066-342.png]]
886 886  
858 +1.
859 +11. LEDs
887 887  
888 -More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]]
861 +|**LEDs**|**Feature**
862 +|**LED1**|Blink when device transmit a packet.
889 889  
864 +1.
865 +11. Switch Jumper
890 890  
891 -== 5.2 Common AT Command Sequence ==
867 +|**Switch Jumper**|**Feature**
868 +|**SW1**|(((
869 +ISP position: Upgrade firmware via UART
892 892  
893 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
894 -
895 -If device has not joined network yet:
896 -
897 -(% class="box infomessage" %)
898 -(((
899 -**AT+FDR**
871 +Flash position: Configure device, check running status.
900 900  )))
873 +|**SW2**|(((
874 +5V position: set to compatible with 5v I/O.
901 901  
902 -(% class="box infomessage" %)
903 -(((
904 -**AT+NJM=0**
876 +3.3v position: set to compatible with 3.3v I/O.,
905 905  )))
906 906  
907 -(% class="box infomessage" %)
908 -(((
909 -**ATZ**
910 -)))
879 ++3.3V: is always ON
911 911  
881 ++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
912 912  
913 -If device already joined network:
883 +1. Case Study
914 914  
915 -(% class="box infomessage" %)
916 -(((
917 -**AT+NJM=0**
918 -)))
885 +User can check this URL for some case studies.
919 919  
920 -(% class="box infomessage" %)
921 -(((
922 -**ATZ**
923 -)))
887 +[[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]]
924 924  
925 925  
926 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
927 927  
928 928  
929 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
892 +1. Use AT Command
893 +11. Access AT Command
930 930  
931 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
895 +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.
932 932  
933 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
897 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
934 934  
935 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
936 936  
937 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
900 +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:
938 938  
939 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
902 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
940 940  
941 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
942 942  
943 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
944 944  
945 -(% 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.
906 +More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
946 946  
947 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
948 948  
949 949  
950 -(% style="color:red" %)**Note:**
910 +1.
911 +11. Common AT Command Sequence
912 +111. Multi-channel ABP mode (Use with SX1301/LG308)
951 951  
952 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
953 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
954 -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.
955 -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
914 +If device has not joined network yet:
956 956  
957 -[[image:1654162478620-421.png]]
916 +AT+FDR
958 958  
918 +AT+NJM=0
959 959  
960 -= 6. FAQ =
920 +ATZ
961 961  
962 -== 6.1 How to upgrade the image? ==
963 963  
964 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
923 +If device already joined network:
965 965  
966 -* Support new features
967 -* For bug fix
968 -* Change LoRaWAN bands.
925 +AT+NJM=0
969 969  
970 -Below shows the hardware connection for how to upload an image to RS485-LN:
927 +ATZ
971 971  
972 -[[image:1654162535040-878.png]]
929 +1.
930 +11.
931 +111. Single-channel ABP mode (Use with LG01/LG02)
973 973  
974 -**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]].
933 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
975 975  
976 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
935 +AT+NJM=0 Set to ABP mode
977 977  
978 -**Step3: **Open flashloader; choose the correct COM port to update.
937 +AT+ADR=0 Set the Adaptive Data Rate Off
979 979  
980 -(% 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.
939 +AT+DR=5  Set Data Rate
981 981  
941 +AT+TDC=60000  Set transmit interval to 60 seconds
982 982  
983 -[[image:image-20220602175818-12.png]]
943 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
984 984  
945 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
985 985  
986 -[[image:image-20220602175848-13.png]]
947 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
987 987  
949 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
988 988  
989 -[[image:image-20220602175912-14.png]]
951 +ATZ          Reset MCU
990 990  
953 +**Note:**
991 991  
992 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
955 +1. Make sure the device is set to ABP mode in the IoT Server.
956 +1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
957 +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.
958 +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
993 993  
994 -[[image:image-20220602175638-10.png]]
960 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
995 995  
996 996  
997 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
963 +1. FAQ
964 +11. How to upgrade the image?
998 998  
999 -User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
966 +The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1000 1000  
968 +* Support new features
969 +* For bug fix
970 +* Change LoRaWAN bands.
1001 1001  
1002 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
972 +Below shows the hardware connection for how to upload an image to RS485-BL:
1003 1003  
1004 -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"]].
974 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1005 1005  
976 +**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]].
1006 1006  
1007 -== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
978 +**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1008 1008  
1009 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
980 +**Step3: **Open flashloader; choose the correct COM port to update.
1010 1010  
1011 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1012 1012  
983 +|(((
984 +HOLD PRO then press the RST button, SYS will be ON, then click next
985 +)))
1013 1013  
1014 -= 7. Trouble Shooting =
987 +|(((
988 +Board detected
989 +)))
1015 1015  
1016 -== 7.1 Downlink doesn’t work, how to solve it? ==
991 +|(((
992 +
993 +)))
1017 1017  
1018 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
995 +[[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]]
1019 1019  
1020 1020  
1021 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1022 1022  
1023 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
999 +[[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]]
1024 1024  
1025 1025  
1026 -= 8. Order Info =
1002 +[[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]]
1027 1027  
1028 -(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1029 1029  
1030 -(% style="color:blue" %)**XXX:**
1005 +1.
1006 +11. How to change the LoRa Frequency Bands/Region?
1031 1031  
1032 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1033 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1034 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1035 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1036 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1037 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1038 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1039 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1040 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1041 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1008 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1042 1042  
1043 1043  
1044 -= 9.Packing Info =
1045 1045  
1012 +1.
1013 +11. How many RS485-Slave can RS485-BL connects?
1046 1046  
1047 -**Package Includes**:
1015 +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]].
1048 1048  
1049 -* RS485-LN x 1
1050 -* Stick Antenna for LoRa RF part x 1
1051 -* Program cable x 1
1052 1052  
1053 -**Dimension and weight**:
1054 1054  
1055 -* Device Size: 13.5 x 7 x 3 cm
1056 -* Device Weight: 105g
1057 -* Package Size / pcs : 14.5 x 8 x 5 cm
1058 -* Weight / pcs : 170g
1059 1059  
1020 +1. Trouble Shooting     
1021 +11. Downlink doesn’t work, how to solve it?
1060 1060  
1061 -= 10. FCC Caution for RS485LN-US915 =
1023 +Please see this link for debug:
1062 1062  
1063 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1025 +[[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]] 
1064 1064  
1065 -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.
1066 1066  
1067 1067  
1068 -**IMPORTANT NOTE:**
1029 +1.
1030 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1069 1069  
1070 -**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:
1032 +It might about the channels mapping. Please see for detail.
1071 1071  
1072 -—Reorient or relocate the receiving antenna.
1034 +[[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]]
1073 1073  
1074 -—Increase the separation between the equipment and receiver.
1075 1075  
1076 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1077 1077  
1078 -—Consult the dealer or an experienced radio/TV technician for help.
1038 +1. Order Info
1079 1079  
1040 +**Part Number: RS485-BL-XXX**
1080 1080  
1081 -**FCC Radiation Exposure Statement:**
1042 +**XXX:**
1082 1082  
1083 -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.
1044 +* **EU433**: frequency bands EU433
1045 +* **EU868**: frequency bands EU868
1046 +* **KR920**: frequency bands KR920
1047 +* **CN470**: frequency bands CN470
1048 +* **AS923**: frequency bands AS923
1049 +* **AU915**: frequency bands AU915
1050 +* **US915**: frequency bands US915
1051 +* **IN865**: frequency bands IN865
1052 +* **RU864**: frequency bands RU864
1053 +* **KZ865: **frequency bands KZ865
1084 1084  
1055 +1. Packing Info
1085 1085  
1086 -= 11. Support =
1057 +**Package Includes**:
1087 1087  
1059 +* RS485-BL x 1
1060 +* Stick Antenna for LoRa RF part x 1
1061 +* Program cable x 1
1062 +
1063 +**Dimension and weight**:
1064 +
1065 +* Device Size: 13.5 x 7 x 3 cm
1066 +* Device Weight: 105g
1067 +* Package Size / pcs : 14.5 x 8 x 5 cm
1068 +* Weight / pcs : 170g
1069 +
1070 +1. Support
1071 +
1088 1088  * 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.
1089 -* 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]].
1073 +* 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
1074 +
1075 +[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
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