Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 57.41 >
edited by Xiaoling
on 2022/06/06 09:58
To version < 58.32 >
edited by Xiaoling
on 2022/06/06 11:47
>
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -121,9 +121,13 @@
121 121  
122 122  (((
123 123  (((
124 +(((
124 124  v1.2: Add External Interrupt Pin.
126 +)))
125 125  
128 +(((
126 126  v1.0: Release
130 +)))
127 127  
128 128  
129 129  )))
... ... @@ -151,7 +151,9 @@
151 151  == 3.1 How it works? ==
152 152  
153 153  (((
158 +(((
154 154  The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
160 +)))
155 155  
156 156  
157 157  )))
... ... @@ -241,19 +241,19 @@
241 241  
242 242  To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
243 243  
244 -(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
245 -|(% style="width:128px" %)(((
250 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
251 +|=(% style="width: 110px;" %)(((
246 246  **AT Commands**
247 -)))|(% style="width:305px" %)(((
253 +)))|=(% style="width: 190px;" %)(((
248 248  **Description**
249 -)))|(% style="width:346px" %)(((
255 +)))|=(% style="width: 190px;" %)(((
250 250  **Example**
251 251  )))
252 -|(% style="width:128px" %)(((
258 +|(% style="width:110px" %)(((
253 253  AT+BAUDR
254 -)))|(% style="width:305px" %)(((
260 +)))|(% style="width:190px" %)(((
255 255  Set the baud rate (for RS485 connection). Default Value is: 9600.
256 -)))|(% style="width:346px" %)(((
262 +)))|(% style="width:190px" %)(((
257 257  (((
258 258  AT+BAUDR=9600
259 259  )))
... ... @@ -262,11 +262,11 @@
262 262  Options: (1200,2400,4800,14400,19200,115200)
263 263  )))
264 264  )))
265 -|(% style="width:128px" %)(((
271 +|(% style="width:110px" %)(((
266 266  AT+PARITY
267 -)))|(% style="width:305px" %)(((
273 +)))|(% style="width:190px" %)(((
268 268  Set UART parity (for RS485 connection)
269 -)))|(% style="width:346px" %)(((
275 +)))|(% style="width:190px" %)(((
270 270  (((
271 271  AT+PARITY=0
272 272  )))
... ... @@ -275,9 +275,9 @@
275 275  Option: 0: no parity, 1: odd parity, 2: even parity
276 276  )))
277 277  )))
278 -|(% style="width:128px" %)(((
284 +|(% style="width:110px" %)(((
279 279  AT+STOPBIT
280 -)))|(% style="width:305px" %)(((
286 +)))|(% style="width:190px" %)(((
281 281  (((
282 282  Set serial stopbit (for RS485 connection)
283 283  )))
... ... @@ -285,7 +285,7 @@
285 285  (((
286 286  
287 287  )))
288 -)))|(% style="width:346px" %)(((
294 +)))|(% style="width:190px" %)(((
289 289  (((
290 290  AT+STOPBIT=0 for 1bit
291 291  )))
... ... @@ -307,15 +307,15 @@
307 307  )))
308 308  )))
309 309  
310 -(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
311 -|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
312 -|AT+CFGDEV|(% style="width:418px" %)(((
316 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
317 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
318 +|AT+CFGDEV|(% style="width:110px" %)(((
313 313  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
314 314  
315 315  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
316 316  
317 317  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
318 -)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
324 +)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
319 319  
320 320  === 3.3.3 Configure read commands for each sampling ===
321 321  
... ... @@ -362,8 +362,8 @@
362 362  
363 363  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
364 364  
365 -(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
366 -|(% style="width:722px" %)(((
371 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
372 +|(% style="width:510px" %)(((
367 367  **AT+DATACUTx=a,b,c**
368 368  
369 369  * **a: length for the return of AT+COMMAND**
... ... @@ -489,33 +489,35 @@
489 489  
490 490  == 3.4 Uplink Payload ==
491 491  
492 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
493 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
494 -|Value|(% style="width:120px" %)(((
495 -Battery(mV)
496 496  
497 -&
499 +[[image:image-20220606110929-1.png]]
498 498  
499 -Interrupt _Flag
500 -)))|(% style="width:116px" %)(((
501 -PAYLOAD_VER
502 -
503 -
504 -)))|(% 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.
505 -
506 506  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
507 507  
508 508  
509 509  == 3.5 Configure RS485-BL via AT or Downlink ==
510 510  
506 +(((
511 511  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
508 +)))
512 512  
510 +(((
513 513  There are two kinds of Commands:
512 +)))
514 514  
515 -* (% 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: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
514 +* (((
515 +(% 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: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
516 +)))
516 516  
517 -* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
518 +* (((
519 +(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
520 +)))
518 518  
522 +(((
523 +
524 +)))
525 +
526 +
519 519  === 3.5.1 Common Commands ===
520 520  
521 521  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]]
... ... @@ -534,142 +534,282 @@
534 534  
535 535  
536 536  
545 +
537 537  ==== **RS485 Debug Command** ====
538 538  
548 +(((
539 539  This command is used to configure the RS485 devices; they won’t be used during sampling.
550 +)))
540 540  
541 -* **AT Command**
552 +* (((
553 +**AT Command**
554 +)))
542 542  
543 543  (% class="box infomessage" %)
544 544  (((
558 +(((
545 545  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
546 546  )))
561 +)))
547 547  
563 +(((
548 548  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
565 +)))
549 549  
550 -* **Downlink Payload**
567 +* (((
568 +**Downlink Payload**
569 +)))
551 551  
571 +(((
552 552  Format: A8 MM NN XX XX XX XX YY
573 +)))
553 553  
575 +(((
554 554  Where:
577 +)))
555 555  
556 -* MM: 1: add CRC-16/MODBUS ; 0: no CRC
557 -* NN: The length of RS485 command
558 -* XX XX XX XX: RS485 command total NN bytes
559 -* YY: How many bytes will be uplink from the return of this RS485 command,
560 -** if YY=0, RS485-LN will execute the downlink command without uplink;
561 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
562 -** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
579 +* (((
580 +MM: 1: add CRC-16/MODBUS ; 0: no CRC
581 +)))
582 +* (((
583 +NN: The length of RS485 command
584 +)))
585 +* (((
586 +XX XX XX XX: RS485 command total NN bytes
587 +)))
588 +* (((
589 +(((
590 +YY: How many bytes will be uplink from the return of this RS485 command,
591 +)))
563 563  
593 +* (((
594 +if YY=0, RS485-LN will execute the downlink command without uplink;
595 +)))
596 +* (((
597 +if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
598 +)))
599 +* (((
600 +if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
601 +)))
602 +)))
603 +
604 +(((
564 564  **Example 1** ~-~-> Configure without ask for uplink (YY=0)
606 +)))
565 565  
608 +(((
566 566  To connect a Modbus Alarm with below commands.
610 +)))
567 567  
568 -* The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
612 +* (((
613 +The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
614 +)))
569 569  
570 -* The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
616 +* (((
617 +The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
618 +)))
571 571  
620 +(((
572 572  So if user want to use downlink command to control to RS485 Alarm, he can use:
622 +)))
573 573  
624 +(((
574 574  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
626 +)))
575 575  
628 +(((
576 576  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
630 +)))
577 577  
632 +(((
578 578  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.
634 +)))
579 579  
636 +(((
637 +
638 +)))
580 580  
640 +(((
581 581  **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
642 +)))
582 582  
644 +(((
583 583  User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
646 +)))
584 584  
648 +(((
649 +
650 +)))
585 585  
652 +(((
586 586  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:
654 +)))
587 587  
656 +(((
588 588   **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
658 +)))
589 589  
660 +(((
590 590   [[image:1654159460680-153.png]]
662 +)))
591 591  
592 592  
593 593  
666 +
594 594  ==== **Set Payload version** ====
595 595  
669 +(((
596 596  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.
671 +)))
597 597  
598 -* **AT Command:**
673 +* (((
674 +**AT Command:**
675 +)))
599 599  
600 600  (% class="box infomessage" %)
601 601  (((
679 +(((
602 602  **AT+PAYVER: Set PAYVER field = 1**
603 603  )))
682 +)))
604 604  
605 -* **Downlink Payload:**
684 +* (((
685 +**Downlink Payload:**
686 +)))
606 606  
688 +(((
607 607  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
690 +)))
608 608  
692 +(((
609 609  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
694 +)))
610 610  
611 611  
612 612  
698 +
613 613  ==== **Set RS485 Sampling Commands** ====
614 614  
701 +(((
615 615  AT+COMMANDx or AT+DATACUTx
703 +)))
616 616  
705 +(((
617 617  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"]].
707 +)))
618 618  
709 +(((
710 +
711 +)))
619 619  
620 -* **AT Command:**
713 +* (((
714 +**AT Command:**
715 +)))
621 621  
622 622  (% class="box infomessage" %)
623 623  (((
719 +(((
624 624  **AT+COMMANDx: Configure RS485 read command to sensor.**
625 625  )))
722 +)))
626 626  
627 627  (% class="box infomessage" %)
628 628  (((
726 +(((
629 629  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
630 630  )))
729 +)))
631 631  
731 +(((
732 +
733 +)))
632 632  
633 -* **Downlink Payload:**
735 +* (((
736 +**Downlink Payload:**
737 +)))
634 634  
739 +(((
635 635  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
741 +)))
636 636  
743 +(((
637 637  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
745 +)))
638 638  
747 +(((
639 639  Format: AF MM NN LL XX XX XX XX YY
749 +)))
640 640  
751 +(((
641 641  Where:
753 +)))
642 642  
643 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
644 -* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
645 -* LL:  The length of AT+COMMAND or AT+DATACUT command
646 -* XX XX XX XX: AT+COMMAND or AT+DATACUT command
647 -* 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.
755 +* (((
756 +MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
757 +)))
758 +* (((
759 +NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
760 +)))
761 +* (((
762 +LL:  The length of AT+COMMAND or AT+DATACUT command
763 +)))
764 +* (((
765 +XX XX XX XX: AT+COMMAND or AT+DATACUT command
766 +)))
767 +* (((
768 +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.
769 +)))
648 648  
771 +(((
649 649  **Example:**
773 +)))
650 650  
775 +(((
651 651  (% 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
777 +)))
652 652  
779 +(((
653 653  (% 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**
781 +)))
654 654  
783 +(((
655 655  (% 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**
785 +)))
656 656  
657 657  
658 658  
789 +
659 659  ==== **Fast command to handle MODBUS device** ====
660 660  
792 +(((
661 661  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]].
794 +)))
662 662  
796 +(((
663 663  This command is valid since v1.3 firmware version
798 +)))
664 664  
800 +(((
665 665  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.
802 +)))
666 666  
804 +(((
805 +
806 +)))
667 667  
808 +(((
668 668  **Example:**
810 +)))
669 669  
670 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
671 -* 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.
672 -* 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.
812 +* (((
813 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
814 +)))
815 +* (((
816 +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.
817 +)))
818 +* (((
819 +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.
820 +)))
673 673  
674 674  [[image:image-20220602165351-6.png]]
675 675  
... ... @@ -677,203 +677,376 @@
677 677  
678 678  
679 679  
828 +
680 680  ==== **RS485 command timeout** ====
681 681  
831 +(((
682 682  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.
833 +)))
683 683  
835 +(((
684 684  Default value: 0, range:  0 ~~ 65 seconds
837 +)))
685 685  
686 -* **AT Command:**
839 +* (((
840 +**AT Command:**
841 +)))
687 687  
688 688  (% class="box infomessage" %)
689 689  (((
845 +(((
690 690  **AT+CMDDLaa=hex(bb cc)*1000**
691 691  )))
848 +)))
692 692  
850 +(((
693 693  **Example:**
852 +)))
694 694  
854 +(((
695 695  **AT+CMDDL1=1000** to send the open time to 1000ms
856 +)))
696 696  
858 +(((
859 +
860 +)))
697 697  
698 -* **Downlink Payload:**
862 +* (((
863 +**Downlink Payload:**
864 +)))
699 699  
866 +(((
700 700  **0x AA aa bb cc**
868 +)))
701 701  
870 +(((
702 702  Same as: AT+CMDDLaa=hex(bb cc)*1000
872 +)))
703 703  
874 +(((
704 704   **Example:**
876 +)))
705 705  
878 +(((
706 706   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
880 +)))
707 707  
708 708  
709 709  
884 +
710 710  ==== **Uplink payload mode** ====
711 711  
887 +(((
712 712  Define to use one uplink or multiple uplinks for the sampling.
889 +)))
713 713  
891 +(((
714 714  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
893 +)))
715 715  
716 -* **AT Command:**
895 +* (((
896 +**AT Command:**
897 +)))
717 717  
718 718  (% class="box infomessage" %)
719 719  (((
901 +(((
720 720  **AT+DATAUP=0**
721 721  )))
904 +)))
722 722  
723 723  (% class="box infomessage" %)
724 724  (((
908 +(((
725 725  **AT+DATAUP=1**
726 726  )))
911 +)))
727 727  
913 +(((
914 +
915 +)))
728 728  
729 -* **Downlink Payload:**
917 +* (((
918 +**Downlink Payload:**
919 +)))
730 730  
921 +(((
731 731  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
923 +)))
732 732  
925 +(((
733 733  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
927 +)))
734 734  
735 735  
736 736  
931 +
737 737  ==== **Manually trigger an Uplink** ====
738 738  
934 +(((
739 739  Ask device to send an uplink immediately.
936 +)))
740 740  
741 -* **AT Command:**
938 +* (((
939 +**AT Command:**
940 +)))
742 742  
942 +(((
743 743  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
944 +)))
744 744  
946 +(((
947 +
948 +)))
745 745  
746 -* **Downlink Payload:**
950 +* (((
951 +**Downlink Payload:**
952 +)))
747 747  
954 +(((
748 748  **0x08 FF**, RS485-LN will immediately send an uplink.
956 +)))
749 749  
750 750  
751 751  
960 +
752 752  ==== **Clear RS485 Command** ====
753 753  
963 +(((
754 754  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
965 +)))
755 755  
756 -* **AT Command:**
967 +* (((
968 +**AT Command:**
969 +)))
757 757  
971 +(((
758 758  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
973 +)))
759 759  
975 +(((
760 760  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
977 +)))
761 761  
979 +(((
762 762  Example screen shot after clear all RS485 commands. 
981 +)))
763 763  
983 +(((
984 +
985 +)))
764 764  
987 +(((
765 765  The uplink screen shot is:
989 +)))
766 766  
767 767  [[image:1654160691922-496.png]]
768 768  
769 769  
770 -* **Downlink Payload:**
994 +* (((
995 +**Downlink Payload:**
996 +)))
771 771  
998 +(((
772 772  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1000 +)))
773 773  
774 774  
775 775  
1004 +
776 776  ==== **Set Serial Communication Parameters** ====
777 777  
1007 +(((
778 778  Set the Rs485 serial communication parameters:
1009 +)))
779 779  
780 -* **AT Command:**
1011 +* (((
1012 +**AT Command:**
1013 +)))
781 781  
1015 +(((
782 782  Set Baud Rate:
1017 +)))
783 783  
784 784  (% class="box infomessage" %)
785 785  (((
1021 +(((
786 786  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
787 787  )))
1024 +)))
788 788  
1026 +(((
789 789  Set UART Parity
1028 +)))
790 790  
791 791  (% class="box infomessage" %)
792 792  (((
1032 +(((
793 793  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
794 794  )))
1035 +)))
795 795  
1037 +(((
796 796  Set STOPBIT
1039 +)))
797 797  
798 798  (% class="box infomessage" %)
799 799  (((
1043 +(((
800 800  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
801 801  )))
1046 +)))
802 802  
1048 +(((
1049 +
1050 +)))
803 803  
804 -* **Downlink Payload:**
1052 +* (((
1053 +**Downlink Payload:**
1054 +)))
805 805  
1056 +(((
806 806  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1058 +)))
807 807  
1060 +(((
808 808  **Example:**
1062 +)))
809 809  
810 -* A7 01 00 60   same as AT+BAUDR=9600
811 -* A7 01 04 80  same as AT+BAUDR=115200
1064 +* (((
1065 +A7 01 00 60   same as AT+BAUDR=9600
1066 +)))
1067 +* (((
1068 +A7 01 04 80  same as AT+BAUDR=115200
1069 +)))
812 812  
1071 +(((
813 813  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1073 +)))
814 814  
1075 +(((
815 815  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1077 +)))
816 816  
817 817  
1080 +
1081 +
818 818  == 3.6 Listening mode for RS485 network ==
819 819  
1084 +(((
820 820  This feature support since firmware v1.4
1086 +)))
821 821  
1088 +(((
822 822  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.
1090 +)))
823 823  
824 824  [[image:image-20220602171200-8.png||height="567" width="1007"]]
825 825  
1094 +(((
826 826  To enable the listening mode, use can run the command AT+RXMODE.
1096 +)))
827 827  
1098 +(((
1099 +
1100 +)))
828 828  
829 -(% border="1" style="background-color:#ffffcc; width:500px" %)
830 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
831 -|(% 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.
832 -|(% 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
833 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
834 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1102 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1103 +|=(% style="width: 161px;" %)(((
1104 +**Command example:**
1105 +)))|=(% style="width: 337px;" %)(((
1106 +**Function**
1107 +)))
1108 +|(% style="width:161px" %)(((
1109 +AT+RXMODE=1,10
1110 +)))|(% style="width:337px" %)(((
1111 +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.
1112 +)))
1113 +|(% style="width:161px" %)(((
1114 +AT+RXMODE=2,500
1115 +)))|(% style="width:337px" %)(((
1116 +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
1117 +)))
1118 +|(% style="width:161px" %)(((
1119 +AT+RXMODE=0,0
1120 +)))|(% style="width:337px" %)(((
1121 +Disable listening mode. This is the default settings.
1122 +)))
1123 +|(% style="width:161px" %)(((
1124 +
1125 +)))|(% style="width:337px" %)(((
1126 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1127 +)))
835 835  
1129 +(((
836 836  **Downlink Command:**
1131 +)))
837 837  
1133 +(((
838 838  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1135 +)))
839 839  
1137 +(((
1138 +
1139 +)))
840 840  
1141 +(((
841 841  **Example**:
1143 +)))
842 842  
1145 +(((
843 843  The RS485-LN is set to AT+RXMODE=2,1000
1147 +)))
844 844  
1149 +(((
845 845  There is a two Modbus commands in the RS485 network as below:
1151 +)))
846 846  
1153 +(((
847 847  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1155 +)))
848 848  
1157 +(((
849 849  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1159 +)))
850 850  
1161 +(((
851 851  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
1163 +)))
852 852  
1165 +(((
853 853  [[image:image-20220602171200-9.png]]
1167 +)))
854 854  
1169 +(((
1170 +
1171 +)))
855 855  
1173 +(((
856 856  (% 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.
1175 +)))
857 857  
858 858  
859 859  == 3.7 Buttons ==
860 860  
861 861  
862 -(% border="1" style="background-color:#f7faff; width:500px" %)
863 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
864 -|**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**
865 -|**RST**|(% style="width:1420px" %)Reboot RS485
866 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1181 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1182 +|=(% style="width: 30px;" %)**Button**|=(% style="width: 355px;" %)**Feature**
1183 +|=(% style="width: 30px;" %)**ACT**|(% style="width:355px" %)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**
1184 +|=(% style="width: 30px;" %)**RST**|(% style="width:355px" %)Reboot RS485
1185 +|=(% style="width: 30px;" %)**PRO**|(% style="width:355px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
867 867  
868 868  
1188 +
869 869  == 3.8 LEDs ==
870 870  
871 -(% border="1" style="background-color:#f7faff; width:500px" %)
872 -|=**LEDs**|=**Feature**
873 -|**PWR**|Always on if there is power
874 -|**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.
1191 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1192 +|=(% style="width: 30px;" %)**LEDs**|=(% style="width: 400px;" %)**Feature**
1193 +|(% style="width:30px" %)**PWR**|=(% style="width: 400px;" %)Always on if there is power
1194 +|(% style="width:30px" %)**SYS**|=(% style="width: 400px;" %)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.
875 875  
876 876  
1197 +
877 877  = 4. Case Study =
878 878  
879 879  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]]
... ... @@ -883,19 +883,26 @@
883 883  
884 884  == 5.1 Access AT Command ==
885 885  
1207 +(((
886 886  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.
1209 +)))
887 887  
888 888  [[image:1654162355560-817.png]]
889 889  
890 890  
1214 +(((
891 891  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:
1216 +)))
892 892  
893 893  [[image:1654162368066-342.png]]
894 894  
895 895  
1221 +(((
896 896  More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1223 +)))
897 897  
898 898  
1226 +
899 899  == 5.2 Common AT Command Sequence ==
900 900  
901 901  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1050,8 +1050,6 @@
1050 1050  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1051 1051  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1052 1052  
1053 -
1054 -
1055 1055  = 9.Packing Info =
1056 1056  
1057 1057  
... ... @@ -1068,8 +1068,6 @@
1068 1068  * Package Size / pcs : 14.5 x 8 x 5 cm
1069 1069  * Weight / pcs : 170g
1070 1070  
1071 -
1072 -
1073 1073  = 10. FCC Caution for RS485LN-US915 =
1074 1074  
1075 1075  (((
image-20220606110929-1.png
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