Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 57.48 >
edited by Xiaoling
on 2022/06/06 11:01
To version < 58.7 >
edited by Xiaoling
on 2022/06/06 11:22
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -327,6 +327,8 @@
327 327  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
328 328  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
329 329  
330 +
331 +
330 330  === 3.3.3 Configure read commands for each sampling ===
331 331  
332 332  (((
... ... @@ -499,33 +499,35 @@
499 499  
500 500  == 3.4 Uplink Payload ==
501 501  
502 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
503 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
504 -|Value|(% style="width:120px" %)(((
505 -Battery(mV)
506 506  
507 -&
505 +[[image:image-20220606110929-1.png]]
508 508  
509 -Interrupt _Flag
510 -)))|(% style="width:116px" %)(((
511 -PAYLOAD_VER
512 -
513 -
514 -)))|(% 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.
515 -
516 516  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
517 517  
518 518  
519 519  == 3.5 Configure RS485-BL via AT or Downlink ==
520 520  
512 +(((
521 521  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
514 +)))
522 522  
516 +(((
523 523  There are two kinds of Commands:
518 +)))
524 524  
525 -* (% 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]]
520 +* (((
521 +(% 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]]
522 +)))
526 526  
527 -* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
524 +* (((
525 +(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
526 +)))
528 528  
528 +(((
529 +
530 +)))
531 +
532 +
529 529  === 3.5.1 Common Commands ===
530 530  
531 531  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
... ... @@ -544,82 +544,160 @@
544 544  
545 545  
546 546  
551 +
547 547  ==== **RS485 Debug Command** ====
548 548  
554 +(((
549 549  This command is used to configure the RS485 devices; they won’t be used during sampling.
556 +)))
550 550  
551 -* **AT Command**
558 +* (((
559 +**AT Command**
560 +)))
552 552  
553 553  (% class="box infomessage" %)
554 554  (((
564 +(((
555 555  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
556 556  )))
567 +)))
557 557  
569 +(((
558 558  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
571 +)))
559 559  
560 -* **Downlink Payload**
573 +* (((
574 +**Downlink Payload**
575 +)))
561 561  
577 +(((
562 562  Format: A8 MM NN XX XX XX XX YY
579 +)))
563 563  
581 +(((
564 564  Where:
583 +)))
565 565  
566 -* MM: 1: add CRC-16/MODBUS ; 0: no CRC
567 -* NN: The length of RS485 command
568 -* XX XX XX XX: RS485 command total NN bytes
569 -* YY: How many bytes will be uplink from the return of this RS485 command,
570 -** if YY=0, RS485-LN will execute the downlink command without uplink;
571 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
572 -** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
585 +* (((
586 +MM: 1: add CRC-16/MODBUS ; 0: no CRC
587 +)))
588 +* (((
589 +NN: The length of RS485 command
590 +)))
591 +* (((
592 +XX XX XX XX: RS485 command total NN bytes
593 +)))
594 +* (((
595 +(((
596 +YY: How many bytes will be uplink from the return of this RS485 command,
597 +)))
573 573  
599 +* (((
600 +if YY=0, RS485-LN will execute the downlink command without uplink;
601 +)))
602 +* (((
603 +if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
604 +)))
605 +* (((
606 +if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
607 +)))
608 +)))
609 +
610 +(((
574 574  **Example 1** ~-~-> Configure without ask for uplink (YY=0)
612 +)))
575 575  
614 +(((
576 576  To connect a Modbus Alarm with below commands.
616 +)))
577 577  
578 -* 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.
618 +* (((
619 +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.
620 +)))
579 579  
580 -* 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.
622 +* (((
623 +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.
624 +)))
581 581  
626 +(((
582 582  So if user want to use downlink command to control to RS485 Alarm, he can use:
628 +)))
583 583  
630 +(((
584 584  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
632 +)))
585 585  
634 +(((
586 586  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
636 +)))
587 587  
638 +(((
588 588  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.
640 +)))
589 589  
642 +(((
643 +
644 +)))
590 590  
646 +(((
591 591  **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
648 +)))
592 592  
650 +(((
593 593  User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
652 +)))
594 594  
654 +(((
655 +
656 +)))
595 595  
658 +(((
596 596  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:
660 +)))
597 597  
662 +(((
598 598   **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
664 +)))
599 599  
666 +(((
600 600   [[image:1654159460680-153.png]]
668 +)))
601 601  
602 602  
603 603  
672 +
604 604  ==== **Set Payload version** ====
605 605  
675 +(((
606 606  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.
677 +)))
607 607  
608 -* **AT Command:**
679 +* (((
680 +**AT Command:**
681 +)))
609 609  
610 610  (% class="box infomessage" %)
611 611  (((
685 +(((
612 612  **AT+PAYVER: Set PAYVER field = 1**
613 613  )))
688 +)))
614 614  
615 -* **Downlink Payload:**
690 +* (((
691 +**Downlink Payload:**
692 +)))
616 616  
694 +(((
617 617  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
696 +)))
618 618  
698 +(((
619 619  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
700 +)))
620 620  
621 621  
622 622  
704 +
623 623  ==== **Set RS485 Sampling Commands** ====
624 624  
625 625  AT+COMMANDx or AT+DATACUTx
image-20220606110929-1.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +13.9 KB
Content

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0