Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 57.44 >
edited by Xiaoling
on 2022/06/06 10:12
To version < 58.28 >
edited by Xiaoling
on 2022/06/06 11:41
>
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -103,8 +103,6 @@
103 103  * Support Modbus protocol
104 104  * Support Interrupt uplink (Since hardware version v1.2)
105 105  
106 -
107 -
108 108  == 1.4 Applications ==
109 109  
110 110  * Smart Buildings & Home Automation
... ... @@ -114,8 +114,6 @@
114 114  * Smart Cities
115 115  * Smart Factory
116 116  
117 -
118 -
119 119  == 1.5 Firmware Change log ==
120 120  
121 121  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -125,9 +125,13 @@
125 125  
126 126  (((
127 127  (((
124 +(((
128 128  v1.2: Add External Interrupt Pin.
126 +)))
129 129  
128 +(((
130 130  v1.0: Release
130 +)))
131 131  
132 132  
133 133  )))
... ... @@ -155,7 +155,9 @@
155 155  == 3.1 How it works? ==
156 156  
157 157  (((
158 +(((
158 158  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 +)))
159 159  
160 160  
161 161  )))
... ... @@ -245,19 +245,19 @@
245 245  
246 246  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:
247 247  
248 -(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
249 -|(% style="width:128px" %)(((
250 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
251 +|=(% style="width: 110px;" %)(((
250 250  **AT Commands**
251 -)))|(% style="width:305px" %)(((
253 +)))|=(% style="width: 190px;" %)(((
252 252  **Description**
253 -)))|(% style="width:346px" %)(((
255 +)))|=(% style="width: 190px;" %)(((
254 254  **Example**
255 255  )))
256 -|(% style="width:128px" %)(((
258 +|(% style="width:110px" %)(((
257 257  AT+BAUDR
258 -)))|(% style="width:305px" %)(((
260 +)))|(% style="width:190px" %)(((
259 259  Set the baud rate (for RS485 connection). Default Value is: 9600.
260 -)))|(% style="width:346px" %)(((
262 +)))|(% style="width:190px" %)(((
261 261  (((
262 262  AT+BAUDR=9600
263 263  )))
... ... @@ -266,11 +266,11 @@
266 266  Options: (1200,2400,4800,14400,19200,115200)
267 267  )))
268 268  )))
269 -|(% style="width:128px" %)(((
271 +|(% style="width:110px" %)(((
270 270  AT+PARITY
271 -)))|(% style="width:305px" %)(((
273 +)))|(% style="width:190px" %)(((
272 272  Set UART parity (for RS485 connection)
273 -)))|(% style="width:346px" %)(((
275 +)))|(% style="width:190px" %)(((
274 274  (((
275 275  AT+PARITY=0
276 276  )))
... ... @@ -279,9 +279,9 @@
279 279  Option: 0: no parity, 1: odd parity, 2: even parity
280 280  )))
281 281  )))
282 -|(% style="width:128px" %)(((
284 +|(% style="width:110px" %)(((
283 283  AT+STOPBIT
284 -)))|(% style="width:305px" %)(((
286 +)))|(% style="width:190px" %)(((
285 285  (((
286 286  Set serial stopbit (for RS485 connection)
287 287  )))
... ... @@ -289,7 +289,7 @@
289 289  (((
290 290  
291 291  )))
292 -)))|(% style="width:346px" %)(((
294 +)))|(% style="width:190px" %)(((
293 293  (((
294 294  AT+STOPBIT=0 for 1bit
295 295  )))
... ... @@ -311,15 +311,15 @@
311 311  )))
312 312  )))
313 313  
314 -(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
315 -|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
316 -|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" %)(((
317 317  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
318 318  
319 319  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
320 320  
321 321  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
322 -)))|(% 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
323 323  
324 324  === 3.3.3 Configure read commands for each sampling ===
325 325  
... ... @@ -366,8 +366,8 @@
366 366  
367 367  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
368 368  
369 -(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
370 -|(% style="width:722px" %)(((
371 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
372 +|(% style="width:510px" %)(((
371 371  **AT+DATACUTx=a,b,c**
372 372  
373 373  * **a: length for the return of AT+COMMAND**
... ... @@ -493,33 +493,35 @@
493 493  
494 494  == 3.4 Uplink Payload ==
495 495  
496 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
497 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
498 -|Value|(% style="width:120px" %)(((
499 -Battery(mV)
500 500  
501 -&
499 +[[image:image-20220606110929-1.png]]
502 502  
503 -Interrupt _Flag
504 -)))|(% style="width:116px" %)(((
505 -PAYLOAD_VER
506 -
507 -
508 -)))|(% 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.
509 -
510 510  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
511 511  
512 512  
513 513  == 3.5 Configure RS485-BL via AT or Downlink ==
514 514  
506 +(((
515 515  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
508 +)))
516 516  
510 +(((
517 517  There are two kinds of Commands:
512 +)))
518 518  
519 -* (% 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 +)))
520 520  
521 -* (% 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 +)))
522 522  
522 +(((
523 +
524 +)))
525 +
526 +
523 523  === 3.5.1 Common Commands ===
524 524  
525 525  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]]
... ... @@ -538,142 +538,282 @@
538 538  
539 539  
540 540  
545 +
541 541  ==== **RS485 Debug Command** ====
542 542  
548 +(((
543 543  This command is used to configure the RS485 devices; they won’t be used during sampling.
550 +)))
544 544  
545 -* **AT Command**
552 +* (((
553 +**AT Command**
554 +)))
546 546  
547 547  (% class="box infomessage" %)
548 548  (((
558 +(((
549 549  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
550 550  )))
561 +)))
551 551  
563 +(((
552 552  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
565 +)))
553 553  
554 -* **Downlink Payload**
567 +* (((
568 +**Downlink Payload**
569 +)))
555 555  
571 +(((
556 556  Format: A8 MM NN XX XX XX XX YY
573 +)))
557 557  
575 +(((
558 558  Where:
577 +)))
559 559  
560 -* MM: 1: add CRC-16/MODBUS ; 0: no CRC
561 -* NN: The length of RS485 command
562 -* XX XX XX XX: RS485 command total NN bytes
563 -* YY: How many bytes will be uplink from the return of this RS485 command,
564 -** if YY=0, RS485-LN will execute the downlink command without uplink;
565 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
566 -** 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 +)))
567 567  
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 +(((
568 568  **Example 1** ~-~-> Configure without ask for uplink (YY=0)
606 +)))
569 569  
608 +(((
570 570  To connect a Modbus Alarm with below commands.
610 +)))
571 571  
572 -* 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 +)))
573 573  
574 -* 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 +)))
575 575  
620 +(((
576 576  So if user want to use downlink command to control to RS485 Alarm, he can use:
622 +)))
577 577  
624 +(((
578 578  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
626 +)))
579 579  
628 +(((
580 580  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
630 +)))
581 581  
632 +(((
582 582  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 +)))
583 583  
636 +(((
637 +
638 +)))
584 584  
640 +(((
585 585  **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
642 +)))
586 586  
644 +(((
587 587  User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
646 +)))
588 588  
648 +(((
649 +
650 +)))
589 589  
652 +(((
590 590  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 +)))
591 591  
656 +(((
592 592   **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
658 +)))
593 593  
660 +(((
594 594   [[image:1654159460680-153.png]]
662 +)))
595 595  
596 596  
597 597  
666 +
598 598  ==== **Set Payload version** ====
599 599  
669 +(((
600 600  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 +)))
601 601  
602 -* **AT Command:**
673 +* (((
674 +**AT Command:**
675 +)))
603 603  
604 604  (% class="box infomessage" %)
605 605  (((
679 +(((
606 606  **AT+PAYVER: Set PAYVER field = 1**
607 607  )))
682 +)))
608 608  
609 -* **Downlink Payload:**
684 +* (((
685 +**Downlink Payload:**
686 +)))
610 610  
688 +(((
611 611  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
690 +)))
612 612  
692 +(((
613 613  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
694 +)))
614 614  
615 615  
616 616  
698 +
617 617  ==== **Set RS485 Sampling Commands** ====
618 618  
701 +(((
619 619  AT+COMMANDx or AT+DATACUTx
703 +)))
620 620  
705 +(((
621 621  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 +)))
622 622  
709 +(((
710 +
711 +)))
623 623  
624 -* **AT Command:**
713 +* (((
714 +**AT Command:**
715 +)))
625 625  
626 626  (% class="box infomessage" %)
627 627  (((
719 +(((
628 628  **AT+COMMANDx: Configure RS485 read command to sensor.**
629 629  )))
722 +)))
630 630  
631 631  (% class="box infomessage" %)
632 632  (((
726 +(((
633 633  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
634 634  )))
729 +)))
635 635  
731 +(((
732 +
733 +)))
636 636  
637 -* **Downlink Payload:**
735 +* (((
736 +**Downlink Payload:**
737 +)))
638 638  
739 +(((
639 639  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
741 +)))
640 640  
743 +(((
641 641  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
745 +)))
642 642  
747 +(((
643 643  Format: AF MM NN LL XX XX XX XX YY
749 +)))
644 644  
751 +(((
645 645  Where:
753 +)))
646 646  
647 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
648 -* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
649 -* LL:  The length of AT+COMMAND or AT+DATACUT command
650 -* XX XX XX XX: AT+COMMAND or AT+DATACUT command
651 -* 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 +)))
652 652  
771 +(((
653 653  **Example:**
773 +)))
654 654  
775 +(((
655 655  (% 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 +)))
656 656  
779 +(((
657 657  (% 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 +)))
658 658  
783 +(((
659 659  (% 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 +)))
660 660  
661 661  
662 662  
789 +
663 663  ==== **Fast command to handle MODBUS device** ====
664 664  
792 +(((
665 665  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 +)))
666 666  
796 +(((
667 667  This command is valid since v1.3 firmware version
798 +)))
668 668  
800 +(((
669 669  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 +)))
670 670  
804 +(((
805 +
806 +)))
671 671  
808 +(((
672 672  **Example:**
810 +)))
673 673  
674 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
675 -* 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.
676 -* 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 +)))
677 677  
678 678  [[image:image-20220602165351-6.png]]
679 679  
... ... @@ -681,203 +681,374 @@
681 681  
682 682  
683 683  
828 +
684 684  ==== **RS485 command timeout** ====
685 685  
831 +(((
686 686  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 +)))
687 687  
835 +(((
688 688  Default value: 0, range:  0 ~~ 65 seconds
837 +)))
689 689  
690 -* **AT Command:**
839 +* (((
840 +**AT Command:**
841 +)))
691 691  
692 692  (% class="box infomessage" %)
693 693  (((
845 +(((
694 694  **AT+CMDDLaa=hex(bb cc)*1000**
695 695  )))
848 +)))
696 696  
850 +(((
697 697  **Example:**
852 +)))
698 698  
854 +(((
699 699  **AT+CMDDL1=1000** to send the open time to 1000ms
856 +)))
700 700  
858 +(((
859 +
860 +)))
701 701  
702 -* **Downlink Payload:**
862 +* (((
863 +**Downlink Payload:**
864 +)))
703 703  
866 +(((
704 704  **0x AA aa bb cc**
868 +)))
705 705  
870 +(((
706 706  Same as: AT+CMDDLaa=hex(bb cc)*1000
872 +)))
707 707  
874 +(((
708 708   **Example:**
876 +)))
709 709  
878 +(((
710 710   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
880 +)))
711 711  
712 712  
713 713  
884 +
714 714  ==== **Uplink payload mode** ====
715 715  
887 +(((
716 716  Define to use one uplink or multiple uplinks for the sampling.
889 +)))
717 717  
891 +(((
718 718  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
893 +)))
719 719  
720 -* **AT Command:**
895 +* (((
896 +**AT Command:**
897 +)))
721 721  
722 722  (% class="box infomessage" %)
723 723  (((
901 +(((
724 724  **AT+DATAUP=0**
725 725  )))
904 +)))
726 726  
727 727  (% class="box infomessage" %)
728 728  (((
908 +(((
729 729  **AT+DATAUP=1**
730 730  )))
911 +)))
731 731  
913 +(((
914 +
915 +)))
732 732  
733 -* **Downlink Payload:**
917 +* (((
918 +**Downlink Payload:**
919 +)))
734 734  
921 +(((
735 735  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
923 +)))
736 736  
925 +(((
737 737  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
927 +)))
738 738  
739 739  
740 740  
931 +
741 741  ==== **Manually trigger an Uplink** ====
742 742  
934 +(((
743 743  Ask device to send an uplink immediately.
936 +)))
744 744  
745 -* **AT Command:**
938 +* (((
939 +**AT Command:**
940 +)))
746 746  
942 +(((
747 747  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
944 +)))
748 748  
946 +(((
947 +
948 +)))
749 749  
750 -* **Downlink Payload:**
950 +* (((
951 +**Downlink Payload:**
952 +)))
751 751  
954 +(((
752 752  **0x08 FF**, RS485-LN will immediately send an uplink.
956 +)))
753 753  
754 754  
755 755  
960 +
756 756  ==== **Clear RS485 Command** ====
757 757  
963 +(((
758 758  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
965 +)))
759 759  
760 -* **AT Command:**
967 +* (((
968 +**AT Command:**
969 +)))
761 761  
971 +(((
762 762  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
973 +)))
763 763  
975 +(((
764 764  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
977 +)))
765 765  
979 +(((
766 766  Example screen shot after clear all RS485 commands. 
981 +)))
767 767  
983 +(((
984 +
985 +)))
768 768  
987 +(((
769 769  The uplink screen shot is:
989 +)))
770 770  
771 771  [[image:1654160691922-496.png]]
772 772  
773 773  
774 -* **Downlink Payload:**
994 +* (((
995 +**Downlink Payload:**
996 +)))
775 775  
998 +(((
776 776  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1000 +)))
777 777  
778 778  
779 779  
1004 +
780 780  ==== **Set Serial Communication Parameters** ====
781 781  
1007 +(((
782 782  Set the Rs485 serial communication parameters:
1009 +)))
783 783  
784 -* **AT Command:**
1011 +* (((
1012 +**AT Command:**
1013 +)))
785 785  
1015 +(((
786 786  Set Baud Rate:
1017 +)))
787 787  
788 788  (% class="box infomessage" %)
789 789  (((
1021 +(((
790 790  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
791 791  )))
1024 +)))
792 792  
1026 +(((
793 793  Set UART Parity
1028 +)))
794 794  
795 795  (% class="box infomessage" %)
796 796  (((
1032 +(((
797 797  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
798 798  )))
1035 +)))
799 799  
1037 +(((
800 800  Set STOPBIT
1039 +)))
801 801  
802 802  (% class="box infomessage" %)
803 803  (((
1043 +(((
804 804  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
805 805  )))
1046 +)))
806 806  
1048 +(((
1049 +
1050 +)))
807 807  
808 -* **Downlink Payload:**
1052 +* (((
1053 +**Downlink Payload:**
1054 +)))
809 809  
1056 +(((
810 810  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1058 +)))
811 811  
1060 +(((
812 812  **Example:**
1062 +)))
813 813  
814 -* A7 01 00 60   same as AT+BAUDR=9600
815 -* 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 +)))
816 816  
1071 +(((
817 817  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1073 +)))
818 818  
1075 +(((
819 819  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1077 +)))
820 820  
821 821  
1080 +
1081 +
822 822  == 3.6 Listening mode for RS485 network ==
823 823  
1084 +(((
824 824  This feature support since firmware v1.4
1086 +)))
825 825  
1088 +(((
826 826  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 +)))
827 827  
828 828  [[image:image-20220602171200-8.png||height="567" width="1007"]]
829 829  
1094 +(((
830 830  To enable the listening mode, use can run the command AT+RXMODE.
1096 +)))
831 831  
1098 +(((
1099 +
1100 +)))
832 832  
833 -(% border="1" style="background-color:#ffffcc; width:500px" %)
834 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
835 -|(% 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.
836 -|(% 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
837 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
838 -|(% 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 +)))
839 839  
1129 +(((
840 840  **Downlink Command:**
1131 +)))
841 841  
1133 +(((
842 842  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1135 +)))
843 843  
1137 +(((
1138 +
1139 +)))
844 844  
1141 +(((
845 845  **Example**:
1143 +)))
846 846  
1145 +(((
847 847  The RS485-LN is set to AT+RXMODE=2,1000
1147 +)))
848 848  
1149 +(((
849 849  There is a two Modbus commands in the RS485 network as below:
1151 +)))
850 850  
1153 +(((
851 851  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1155 +)))
852 852  
1157 +(((
853 853  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1159 +)))
854 854  
1161 +(((
855 855  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 +)))
856 856  
1165 +(((
857 857  [[image:image-20220602171200-9.png]]
1167 +)))
858 858  
1169 +(((
1170 +
1171 +)))
859 859  
1173 +(((
860 860  (% 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 +)))
861 861  
862 862  
863 863  == 3.7 Buttons ==
864 864  
865 865  
866 -(% border="1" style="background-color:#f7faff; width:500px" %)
867 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
868 -|**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**
869 -|**RST**|(% style="width:1420px" %)Reboot RS485
870 -|**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"]]
871 871  
872 872  
1188 +
873 873  == 3.8 LEDs ==
874 874  
875 -(% border="1" style="background-color:#f7faff; width:500px" %)
876 -|=**LEDs**|=**Feature**
877 -|**PWR**|Always on if there is power
878 -|**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:500px" %)
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.
879 879  
880 -
881 881  = 4. Case Study =
882 882  
883 883  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]]
... ... @@ -887,19 +887,26 @@
887 887  
888 888  == 5.1 Access AT Command ==
889 889  
1205 +(((
890 890  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.
1207 +)))
891 891  
892 892  [[image:1654162355560-817.png]]
893 893  
894 894  
1212 +(((
895 895  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:
1214 +)))
896 896  
897 897  [[image:1654162368066-342.png]]
898 898  
899 899  
1219 +(((
900 900  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/]]
1221 +)))
901 901  
902 902  
1224 +
903 903  == 5.2 Common AT Command Sequence ==
904 904  
905 905  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1054,8 +1054,6 @@
1054 1054  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1055 1055  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1056 1056  
1057 -
1058 -
1059 1059  = 9.Packing Info =
1060 1060  
1061 1061  
... ... @@ -1072,8 +1072,6 @@
1072 1072  * Package Size / pcs : 14.5 x 8 x 5 cm
1073 1073  * Weight / pcs : 170g
1074 1074  
1075 -
1076 -
1077 1077  = 10. FCC Caution for RS485LN-US915 =
1078 1078  
1079 1079  (((
image-20220606110929-1.png
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