Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 57.46 >
edited by Xiaoling
on 2022/06/06 10:22
To version < 59.1 >
edited by Xiaoling
on 2022/06/06 14:19
>
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/]]
... ... @@ -237,11 +237,15 @@
237 237  
238 238  (((
239 239  (((
236 +(((
240 240  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.
241 241  )))
239 +)))
242 242  
243 243  (((
242 +(((
244 244  (% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
244 +)))
245 245  
246 246  
247 247  )))
... ... @@ -251,19 +251,19 @@
251 251  
252 252  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:
253 253  
254 -(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
255 -|(% style="width:128px" %)(((
254 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
255 +|=(% style="width: 110px;" %)(((
256 256  **AT Commands**
257 -)))|(% style="width:305px" %)(((
257 +)))|=(% style="width: 190px;" %)(((
258 258  **Description**
259 -)))|(% style="width:346px" %)(((
259 +)))|=(% style="width: 190px;" %)(((
260 260  **Example**
261 261  )))
262 -|(% style="width:128px" %)(((
262 +|(% style="width:110px" %)(((
263 263  AT+BAUDR
264 -)))|(% style="width:305px" %)(((
264 +)))|(% style="width:190px" %)(((
265 265  Set the baud rate (for RS485 connection). Default Value is: 9600.
266 -)))|(% style="width:346px" %)(((
266 +)))|(% style="width:190px" %)(((
267 267  (((
268 268  AT+BAUDR=9600
269 269  )))
... ... @@ -272,11 +272,11 @@
272 272  Options: (1200,2400,4800,14400,19200,115200)
273 273  )))
274 274  )))
275 -|(% style="width:128px" %)(((
275 +|(% style="width:110px" %)(((
276 276  AT+PARITY
277 -)))|(% style="width:305px" %)(((
277 +)))|(% style="width:190px" %)(((
278 278  Set UART parity (for RS485 connection)
279 -)))|(% style="width:346px" %)(((
279 +)))|(% style="width:190px" %)(((
280 280  (((
281 281  AT+PARITY=0
282 282  )))
... ... @@ -285,9 +285,9 @@
285 285  Option: 0: no parity, 1: odd parity, 2: even parity
286 286  )))
287 287  )))
288 -|(% style="width:128px" %)(((
288 +|(% style="width:110px" %)(((
289 289  AT+STOPBIT
290 -)))|(% style="width:305px" %)(((
290 +)))|(% style="width:190px" %)(((
291 291  (((
292 292  Set serial stopbit (for RS485 connection)
293 293  )))
... ... @@ -295,7 +295,7 @@
295 295  (((
296 296  
297 297  )))
298 -)))|(% style="width:346px" %)(((
298 +)))|(% style="width:190px" %)(((
299 299  (((
300 300  AT+STOPBIT=0 for 1bit
301 301  )))
... ... @@ -309,6 +309,7 @@
309 309  )))
310 310  )))
311 311  
312 +
312 312  === 3.3.2 Configure sensors ===
313 313  
314 314  (((
... ... @@ -317,16 +317,23 @@
317 317  )))
318 318  )))
319 319  
320 -(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
321 -|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
322 -|AT+CFGDEV|(% style="width:418px" %)(((
321 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
322 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
323 +|AT+CFGDEV|(% style="width:110px" %)(((
324 +(((
323 323  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
326 +)))
324 324  
328 +(((
325 325  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
330 +)))
326 326  
332 +(((
327 327  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
328 -)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
334 +)))
335 +)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
329 329  
337 +
330 330  === 3.3.3 Configure read commands for each sampling ===
331 331  
332 332  (((
... ... @@ -372,8 +372,8 @@
372 372  
373 373  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
374 374  
375 -(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
376 -|(% style="width:722px" %)(((
383 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
384 +|(% style="width:510px" %)(((
377 377  **AT+DATACUTx=a,b,c**
378 378  
379 379  * **a: length for the return of AT+COMMAND**
... ... @@ -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 -&
511 +[[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  
518 +(((
521 521  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
520 +)))
522 522  
522 +(((
523 523  There are two kinds of Commands:
524 +)))
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]]
526 +* (((
527 +(% 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]]
528 +)))
526 526  
527 -* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
530 +* (((
531 +(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
532 +)))
528 528  
534 +(((
535 +
536 +)))
537 +
538 +
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]]
... ... @@ -544,142 +544,282 @@
544 544  
545 545  
546 546  
557 +
547 547  ==== **RS485 Debug Command** ====
548 548  
560 +(((
549 549  This command is used to configure the RS485 devices; they won’t be used during sampling.
562 +)))
550 550  
551 -* **AT Command**
564 +* (((
565 +**AT Command**
566 +)))
552 552  
553 553  (% class="box infomessage" %)
554 554  (((
570 +(((
555 555  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
556 556  )))
573 +)))
557 557  
575 +(((
558 558  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
577 +)))
559 559  
560 -* **Downlink Payload**
579 +* (((
580 +**Downlink Payload**
581 +)))
561 561  
583 +(((
562 562  Format: A8 MM NN XX XX XX XX YY
585 +)))
563 563  
587 +(((
564 564  Where:
589 +)))
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.
591 +* (((
592 +MM: 1: add CRC-16/MODBUS ; 0: no CRC
593 +)))
594 +* (((
595 +NN: The length of RS485 command
596 +)))
597 +* (((
598 +XX XX XX XX: RS485 command total NN bytes
599 +)))
600 +* (((
601 +(((
602 +YY: How many bytes will be uplink from the return of this RS485 command,
603 +)))
573 573  
605 +* (((
606 +if YY=0, RS485-LN will execute the downlink command without uplink;
607 +)))
608 +* (((
609 +if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
610 +)))
611 +* (((
612 +if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
613 +)))
614 +)))
615 +
616 +(((
574 574  **Example 1** ~-~-> Configure without ask for uplink (YY=0)
618 +)))
575 575  
620 +(((
576 576  To connect a Modbus Alarm with below commands.
622 +)))
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.
624 +* (((
625 +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.
626 +)))
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.
628 +* (((
629 +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.
630 +)))
581 581  
632 +(((
582 582  So if user want to use downlink command to control to RS485 Alarm, he can use:
634 +)))
583 583  
636 +(((
584 584  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
638 +)))
585 585  
640 +(((
586 586  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
642 +)))
587 587  
644 +(((
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.
646 +)))
589 589  
648 +(((
649 +
650 +)))
590 590  
652 +(((
591 591  **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
654 +)))
592 592  
656 +(((
593 593  User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
658 +)))
594 594  
660 +(((
661 +
662 +)))
595 595  
664 +(((
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:
666 +)))
597 597  
668 +(((
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**
670 +)))
599 599  
672 +(((
600 600   [[image:1654159460680-153.png]]
674 +)))
601 601  
602 602  
603 603  
678 +
604 604  ==== **Set Payload version** ====
605 605  
681 +(((
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.
683 +)))
607 607  
608 -* **AT Command:**
685 +* (((
686 +**AT Command:**
687 +)))
609 609  
610 610  (% class="box infomessage" %)
611 611  (((
691 +(((
612 612  **AT+PAYVER: Set PAYVER field = 1**
613 613  )))
694 +)))
614 614  
615 -* **Downlink Payload:**
696 +* (((
697 +**Downlink Payload:**
698 +)))
616 616  
700 +(((
617 617  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
702 +)))
618 618  
704 +(((
619 619  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
706 +)))
620 620  
621 621  
622 622  
710 +
623 623  ==== **Set RS485 Sampling Commands** ====
624 624  
713 +(((
625 625  AT+COMMANDx or AT+DATACUTx
715 +)))
626 626  
717 +(((
627 627  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"]].
719 +)))
628 628  
721 +(((
722 +
723 +)))
629 629  
630 -* **AT Command:**
725 +* (((
726 +**AT Command:**
727 +)))
631 631  
632 632  (% class="box infomessage" %)
633 633  (((
731 +(((
634 634  **AT+COMMANDx: Configure RS485 read command to sensor.**
635 635  )))
734 +)))
636 636  
637 637  (% class="box infomessage" %)
638 638  (((
738 +(((
639 639  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
640 640  )))
741 +)))
641 641  
743 +(((
744 +
745 +)))
642 642  
643 -* **Downlink Payload:**
747 +* (((
748 +**Downlink Payload:**
749 +)))
644 644  
751 +(((
645 645  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
753 +)))
646 646  
755 +(((
647 647  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
757 +)))
648 648  
759 +(((
649 649  Format: AF MM NN LL XX XX XX XX YY
761 +)))
650 650  
763 +(((
651 651  Where:
765 +)))
652 652  
653 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
654 -* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
655 -* LL:  The length of AT+COMMAND or AT+DATACUT command
656 -* XX XX XX XX: AT+COMMAND or AT+DATACUT command
657 -* 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.
767 +* (((
768 +MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
769 +)))
770 +* (((
771 +NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
772 +)))
773 +* (((
774 +LL:  The length of AT+COMMAND or AT+DATACUT command
775 +)))
776 +* (((
777 +XX XX XX XX: AT+COMMAND or AT+DATACUT command
778 +)))
779 +* (((
780 +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.
781 +)))
658 658  
783 +(((
659 659  **Example:**
785 +)))
660 660  
787 +(((
661 661  (% 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
789 +)))
662 662  
791 +(((
663 663  (% 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**
793 +)))
664 664  
795 +(((
665 665  (% 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**
797 +)))
666 666  
667 667  
668 668  
801 +
669 669  ==== **Fast command to handle MODBUS device** ====
670 670  
804 +(((
671 671  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]].
806 +)))
672 672  
808 +(((
673 673  This command is valid since v1.3 firmware version
810 +)))
674 674  
812 +(((
675 675  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.
814 +)))
676 676  
816 +(((
817 +
818 +)))
677 677  
820 +(((
678 678  **Example:**
822 +)))
679 679  
680 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
681 -* 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.
682 -* 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.
824 +* (((
825 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
826 +)))
827 +* (((
828 +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.
829 +)))
830 +* (((
831 +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.
832 +)))
683 683  
684 684  [[image:image-20220602165351-6.png]]
685 685  
... ... @@ -687,201 +687,375 @@
687 687  
688 688  
689 689  
840 +
690 690  ==== **RS485 command timeout** ====
691 691  
843 +(((
692 692  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.
845 +)))
693 693  
847 +(((
694 694  Default value: 0, range:  0 ~~ 65 seconds
849 +)))
695 695  
696 -* **AT Command:**
851 +* (((
852 +**AT Command:**
853 +)))
697 697  
698 698  (% class="box infomessage" %)
699 699  (((
857 +(((
700 700  **AT+CMDDLaa=hex(bb cc)*1000**
701 701  )))
860 +)))
702 702  
862 +(((
703 703  **Example:**
864 +)))
704 704  
866 +(((
705 705  **AT+CMDDL1=1000** to send the open time to 1000ms
868 +)))
706 706  
870 +(((
871 +
872 +)))
707 707  
708 -* **Downlink Payload:**
874 +* (((
875 +**Downlink Payload:**
876 +)))
709 709  
878 +(((
710 710  **0x AA aa bb cc**
880 +)))
711 711  
882 +(((
712 712  Same as: AT+CMDDLaa=hex(bb cc)*1000
884 +)))
713 713  
886 +(((
714 714   **Example:**
888 +)))
715 715  
890 +(((
716 716   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
892 +)))
717 717  
718 718  
719 719  
896 +
720 720  ==== **Uplink payload mode** ====
721 721  
899 +(((
722 722  Define to use one uplink or multiple uplinks for the sampling.
901 +)))
723 723  
903 +(((
724 724  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
905 +)))
725 725  
726 -* **AT Command:**
907 +* (((
908 +**AT Command:**
909 +)))
727 727  
728 728  (% class="box infomessage" %)
729 729  (((
913 +(((
730 730  **AT+DATAUP=0**
731 731  )))
916 +)))
732 732  
733 733  (% class="box infomessage" %)
734 734  (((
920 +(((
735 735  **AT+DATAUP=1**
736 736  )))
923 +)))
737 737  
925 +(((
926 +
927 +)))
738 738  
739 -* **Downlink Payload:**
929 +* (((
930 +**Downlink Payload:**
931 +)))
740 740  
933 +(((
741 741  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
935 +)))
742 742  
937 +(((
743 743  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
939 +)))
744 744  
745 745  
746 746  
943 +
747 747  ==== **Manually trigger an Uplink** ====
748 748  
946 +(((
749 749  Ask device to send an uplink immediately.
948 +)))
750 750  
751 -* **AT Command:**
950 +* (((
951 +**AT Command:**
952 +)))
752 752  
954 +(((
753 753  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
956 +)))
754 754  
958 +(((
959 +
960 +)))
755 755  
756 -* **Downlink Payload:**
962 +* (((
963 +**Downlink Payload:**
964 +)))
757 757  
966 +(((
758 758  **0x08 FF**, RS485-LN will immediately send an uplink.
968 +)))
759 759  
760 760  
761 761  
972 +
762 762  ==== **Clear RS485 Command** ====
763 763  
975 +(((
764 764  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
977 +)))
765 765  
766 -* **AT Command:**
979 +* (((
980 +**AT Command:**
981 +)))
767 767  
983 +(((
768 768  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
985 +)))
769 769  
987 +(((
770 770  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
989 +)))
771 771  
991 +(((
772 772  Example screen shot after clear all RS485 commands. 
993 +)))
773 773  
995 +(((
996 +
997 +)))
774 774  
999 +(((
775 775  The uplink screen shot is:
1001 +)))
776 776  
777 777  [[image:1654160691922-496.png]]
778 778  
779 779  
780 -* **Downlink Payload:**
1006 +* (((
1007 +**Downlink Payload:**
1008 +)))
781 781  
1010 +(((
782 782  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1012 +)))
783 783  
784 784  
785 785  
1016 +
786 786  ==== **Set Serial Communication Parameters** ====
787 787  
1019 +(((
788 788  Set the Rs485 serial communication parameters:
1021 +)))
789 789  
790 -* **AT Command:**
1023 +* (((
1024 +**AT Command:**
1025 +)))
791 791  
1027 +(((
792 792  Set Baud Rate:
1029 +)))
793 793  
794 794  (% class="box infomessage" %)
795 795  (((
1033 +(((
796 796  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
797 797  )))
1036 +)))
798 798  
1038 +(((
799 799  Set UART Parity
1040 +)))
800 800  
801 801  (% class="box infomessage" %)
802 802  (((
1044 +(((
803 803  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
804 804  )))
1047 +)))
805 805  
1049 +(((
806 806  Set STOPBIT
1051 +)))
807 807  
808 808  (% class="box infomessage" %)
809 809  (((
1055 +(((
810 810  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
811 811  )))
1058 +)))
812 812  
1060 +(((
1061 +
1062 +)))
813 813  
814 -* **Downlink Payload:**
1064 +* (((
1065 +**Downlink Payload:**
1066 +)))
815 815  
1068 +(((
816 816  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1070 +)))
817 817  
1072 +(((
818 818  **Example:**
1074 +)))
819 819  
820 -* A7 01 00 60   same as AT+BAUDR=9600
821 -* A7 01 04 80  same as AT+BAUDR=115200
1076 +* (((
1077 +A7 01 00 60   same as AT+BAUDR=9600
1078 +)))
1079 +* (((
1080 +A7 01 04 80  same as AT+BAUDR=115200
1081 +)))
822 822  
1083 +(((
823 823  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1085 +)))
824 824  
1087 +(((
825 825  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1089 +)))
826 826  
827 827  
1092 +
1093 +
828 828  == 3.6 Listening mode for RS485 network ==
829 829  
1096 +(((
830 830  This feature support since firmware v1.4
1098 +)))
831 831  
1100 +(((
832 832  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.
1102 +)))
833 833  
834 834  [[image:image-20220602171200-8.png||height="567" width="1007"]]
835 835  
1106 +(((
836 836  To enable the listening mode, use can run the command AT+RXMODE.
1108 +)))
837 837  
1110 +(((
1111 +
1112 +)))
838 838  
839 -(% border="1" style="background-color:#ffffcc; width:500px" %)
840 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
841 -|(% 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.
842 -|(% 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
843 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
844 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1114 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1115 +|=(% style="width: 100px;" %)(((
1116 +**Command example**
1117 +)))|=(% style="width: 400px;" %)(((
1118 +**Function**
1119 +)))
1120 +|(% style="width:100px" %)(((
1121 +AT+RXMODE=1,10
1122 +)))|(% style="width:400px" %)(((
1123 +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.
1124 +)))
1125 +|(% style="width:100px" %)(((
1126 +AT+RXMODE=2,500
1127 +)))|(% style="width:400px" %)(((
1128 +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
1129 +)))
1130 +|(% style="width:100px" %)(((
1131 +AT+RXMODE=0,0
1132 +)))|(% style="width:400px" %)(((
1133 +Disable listening mode. This is the default settings.
1134 +)))
1135 +|(% style="width:100px" %)(((
1136 +
1137 +)))|(% style="width:400px" %)(((
1138 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1139 +)))
845 845  
1141 +(((
846 846  **Downlink Command:**
1143 +)))
847 847  
1145 +(((
848 848  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1147 +)))
849 849  
1149 +(((
1150 +
1151 +)))
850 850  
1153 +(((
851 851  **Example**:
1155 +)))
852 852  
1157 +(((
853 853  The RS485-LN is set to AT+RXMODE=2,1000
1159 +)))
854 854  
1161 +(((
855 855  There is a two Modbus commands in the RS485 network as below:
1163 +)))
856 856  
1165 +(((
857 857  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1167 +)))
858 858  
1169 +(((
859 859  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1171 +)))
860 860  
1173 +(((
861 861  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
1175 +)))
862 862  
1177 +(((
863 863  [[image:image-20220602171200-9.png]]
1179 +)))
864 864  
1181 +(((
1182 +
1183 +)))
865 865  
1185 +(((
1186 +(((
866 866  (% 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.
1188 +)))
1189 +)))
867 867  
868 868  
869 869  == 3.7 Buttons ==
870 870  
871 871  
872 -(% border="1" style="background-color:#f7faff; width:500px" %)
873 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
874 -|**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**
875 -|**RST**|(% style="width:1420px" %)Reboot RS485
876 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1195 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1196 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1197 +|(% style="width:50px" %)**ACT**|(% style="width:350px" %)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**
1198 +|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1199 +|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
877 877  
878 878  
879 879  == 3.8 LEDs ==
880 880  
881 -(% border="1" style="background-color:#f7faff; width:500px" %)
882 -|=**LEDs**|=**Feature**
1204 +
1205 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1206 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
883 883  |**PWR**|Always on if there is power
884 -|**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.
1208 +|**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.
885 885  
886 886  
887 887  = 4. Case Study =
... ... @@ -893,19 +893,26 @@
893 893  
894 894  == 5.1 Access AT Command ==
895 895  
1220 +(((
896 896  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.
1222 +)))
897 897  
898 898  [[image:1654162355560-817.png]]
899 899  
900 900  
1227 +(((
901 901  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:
1229 +)))
902 902  
903 903  [[image:1654162368066-342.png]]
904 904  
905 905  
1234 +(((
906 906  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/]]
1236 +)))
907 907  
908 908  
1239 +
909 909  == 5.2 Common AT Command Sequence ==
910 910  
911 911  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -928,7 +928,9 @@
928 928  )))
929 929  
930 930  
1262 +(((
931 931  If device already joined network:
1264 +)))
932 932  
933 933  (% class="box infomessage" %)
934 934  (((
... ... @@ -967,10 +967,12 @@
967 967  
968 968  (% style="color:red" %)**Note:**
969 969  
1303 +(((
970 970  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
971 971  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
972 972  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.
973 973  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
1308 +)))
974 974  
975 975  [[image:1654162478620-421.png]]
976 976  
... ... @@ -979,25 +979,45 @@
979 979  
980 980  == 6.1 How to upgrade the image? ==
981 981  
1317 +(((
982 982  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1319 +)))
983 983  
984 -* Support new features
985 -* For bug fix
986 -* Change LoRaWAN bands.
1321 +* (((
1322 +Support new features
1323 +)))
1324 +* (((
1325 +For bug fix
1326 +)))
1327 +* (((
1328 +Change LoRaWAN bands.
1329 +)))
987 987  
1331 +(((
988 988  Below shows the hardware connection for how to upload an image to RS485-LN:
1333 +)))
989 989  
990 990  [[image:1654162535040-878.png]]
991 991  
1337 +(((
992 992  **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]].
1339 +)))
993 993  
1341 +(((
994 994  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1343 +)))
995 995  
1345 +(((
996 996  **Step3: **Open flashloader; choose the correct COM port to update.
1347 +)))
997 997  
998 998  (((
1350 +(((
1351 +(((
999 999  (% 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.
1000 1000  )))
1354 +)))
1355 +)))
1001 1001  
1002 1002  
1003 1003  [[image:image-20220602175818-12.png]]
... ... @@ -1060,8 +1060,6 @@
1060 1060  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1061 1061  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1062 1062  
1063 -
1064 -
1065 1065  = 9.Packing Info =
1066 1066  
1067 1067  
... ... @@ -1078,8 +1078,6 @@
1078 1078  * Package Size / pcs : 14.5 x 8 x 5 cm
1079 1079  * Weight / pcs : 170g
1080 1080  
1081 -
1082 -
1083 1083  = 10. FCC Caution for RS485LN-US915 =
1084 1084  
1085 1085  (((
image-20220606110929-1.png
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