Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 57.42 >
edited by Xiaoling
on 2022/06/06 10:12
To version < 58.48 >
edited by Xiaoling
on 2022/06/06 13:44
>
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  )))
... ... @@ -227,11 +227,15 @@
227 227  
228 228  (((
229 229  (((
236 +(((
230 230  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.
231 231  )))
239 +)))
232 232  
233 233  (((
242 +(((
234 234  (% 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 +)))
235 235  
236 236  
237 237  )))
... ... @@ -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" %)(((
254 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
255 +|=(% style="width: 110px;" %)(((
246 246  **AT Commands**
247 -)))|(% style="width:305px" %)(((
257 +)))|=(% style="width: 190px;" %)(((
248 248  **Description**
249 -)))|(% style="width:346px" %)(((
259 +)))|=(% style="width: 190px;" %)(((
250 250  **Example**
251 251  )))
252 -|(% style="width:128px" %)(((
262 +|(% style="width:110px" %)(((
253 253  AT+BAUDR
254 -)))|(% style="width:305px" %)(((
264 +)))|(% style="width:190px" %)(((
255 255  Set the baud rate (for RS485 connection). Default Value is: 9600.
256 -)))|(% style="width:346px" %)(((
266 +)))|(% 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" %)(((
275 +|(% style="width:110px" %)(((
266 266  AT+PARITY
267 -)))|(% style="width:305px" %)(((
277 +)))|(% style="width:190px" %)(((
268 268  Set UART parity (for RS485 connection)
269 -)))|(% style="width:346px" %)(((
279 +)))|(% 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" %)(((
288 +|(% style="width:110px" %)(((
279 279  AT+STOPBIT
280 -)))|(% style="width:305px" %)(((
290 +)))|(% 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" %)(((
298 +)))|(% style="width:190px" %)(((
289 289  (((
290 290  AT+STOPBIT=0 for 1bit
291 291  )))
... ... @@ -299,6 +299,7 @@
299 299  )))
300 300  )))
301 301  
312 +
302 302  === 3.3.2 Configure sensors ===
303 303  
304 304  (((
... ... @@ -307,16 +307,17 @@
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" %)(((
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" %)(((
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
329 +)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
319 319  
331 +
320 320  === 3.3.3 Configure read commands for each sampling ===
321 321  
322 322  (((
... ... @@ -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" %)(((
377 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
378 +|(% 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 -&
505 +[[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  
512 +(((
511 511  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
514 +)))
512 512  
516 +(((
513 513  There are two kinds of Commands:
518 +)))
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]]
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 +)))
516 516  
517 -* (% 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 +)))
518 518  
528 +(((
529 +
530 +)))
531 +
532 +
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  
551 +
537 537  ==== **RS485 Debug Command** ====
538 538  
554 +(((
539 539  This command is used to configure the RS485 devices; they won’t be used during sampling.
556 +)))
540 540  
541 -* **AT Command**
558 +* (((
559 +**AT Command**
560 +)))
542 542  
543 543  (% class="box infomessage" %)
544 544  (((
564 +(((
545 545  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
546 546  )))
567 +)))
547 547  
569 +(((
548 548  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
571 +)))
549 549  
550 -* **Downlink Payload**
573 +* (((
574 +**Downlink Payload**
575 +)))
551 551  
577 +(((
552 552  Format: A8 MM NN XX XX XX XX YY
579 +)))
553 553  
581 +(((
554 554  Where:
583 +)))
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.
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 +)))
563 563  
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 +(((
564 564  **Example 1** ~-~-> Configure without ask for uplink (YY=0)
612 +)))
565 565  
614 +(((
566 566  To connect a Modbus Alarm with below commands.
616 +)))
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.
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 +)))
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.
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 +)))
571 571  
626 +(((
572 572  So if user want to use downlink command to control to RS485 Alarm, he can use:
628 +)))
573 573  
630 +(((
574 574  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
632 +)))
575 575  
634 +(((
576 576  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
636 +)))
577 577  
638 +(((
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.
640 +)))
579 579  
642 +(((
643 +
644 +)))
580 580  
646 +(((
581 581  **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
648 +)))
582 582  
650 +(((
583 583  User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
652 +)))
584 584  
654 +(((
655 +
656 +)))
585 585  
658 +(((
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:
660 +)))
587 587  
662 +(((
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**
664 +)))
589 589  
666 +(((
590 590   [[image:1654159460680-153.png]]
668 +)))
591 591  
592 592  
593 593  
672 +
594 594  ==== **Set Payload version** ====
595 595  
675 +(((
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.
677 +)))
597 597  
598 -* **AT Command:**
679 +* (((
680 +**AT Command:**
681 +)))
599 599  
600 600  (% class="box infomessage" %)
601 601  (((
685 +(((
602 602  **AT+PAYVER: Set PAYVER field = 1**
603 603  )))
688 +)))
604 604  
605 -* **Downlink Payload:**
690 +* (((
691 +**Downlink Payload:**
692 +)))
606 606  
694 +(((
607 607  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
696 +)))
608 608  
698 +(((
609 609  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
700 +)))
610 610  
611 611  
612 612  
704 +
613 613  ==== **Set RS485 Sampling Commands** ====
614 614  
707 +(((
615 615  AT+COMMANDx or AT+DATACUTx
709 +)))
616 616  
711 +(((
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"]].
713 +)))
618 618  
715 +(((
716 +
717 +)))
619 619  
620 -* **AT Command:**
719 +* (((
720 +**AT Command:**
721 +)))
621 621  
622 622  (% class="box infomessage" %)
623 623  (((
725 +(((
624 624  **AT+COMMANDx: Configure RS485 read command to sensor.**
625 625  )))
728 +)))
626 626  
627 627  (% class="box infomessage" %)
628 628  (((
732 +(((
629 629  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
630 630  )))
735 +)))
631 631  
737 +(((
738 +
739 +)))
632 632  
633 -* **Downlink Payload:**
741 +* (((
742 +**Downlink Payload:**
743 +)))
634 634  
745 +(((
635 635  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
747 +)))
636 636  
749 +(((
637 637  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
751 +)))
638 638  
753 +(((
639 639  Format: AF MM NN LL XX XX XX XX YY
755 +)))
640 640  
757 +(((
641 641  Where:
759 +)))
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.
761 +* (((
762 +MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
763 +)))
764 +* (((
765 +NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
766 +)))
767 +* (((
768 +LL:  The length of AT+COMMAND or AT+DATACUT command
769 +)))
770 +* (((
771 +XX XX XX XX: AT+COMMAND or AT+DATACUT command
772 +)))
773 +* (((
774 +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.
775 +)))
648 648  
777 +(((
649 649  **Example:**
779 +)))
650 650  
781 +(((
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
783 +)))
652 652  
785 +(((
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**
787 +)))
654 654  
789 +(((
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**
791 +)))
656 656  
657 657  
658 658  
795 +
659 659  ==== **Fast command to handle MODBUS device** ====
660 660  
798 +(((
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]].
800 +)))
662 662  
802 +(((
663 663  This command is valid since v1.3 firmware version
804 +)))
664 664  
806 +(((
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.
808 +)))
666 666  
810 +(((
811 +
812 +)))
667 667  
814 +(((
668 668  **Example:**
816 +)))
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.
818 +* (((
819 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
820 +)))
821 +* (((
822 +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.
823 +)))
824 +* (((
825 +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.
826 +)))
673 673  
674 674  [[image:image-20220602165351-6.png]]
675 675  
... ... @@ -677,201 +677,373 @@
677 677  
678 678  
679 679  
834 +
680 680  ==== **RS485 command timeout** ====
681 681  
837 +(((
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.
839 +)))
683 683  
841 +(((
684 684  Default value: 0, range:  0 ~~ 65 seconds
843 +)))
685 685  
686 -* **AT Command:**
845 +* (((
846 +**AT Command:**
847 +)))
687 687  
688 688  (% class="box infomessage" %)
689 689  (((
851 +(((
690 690  **AT+CMDDLaa=hex(bb cc)*1000**
691 691  )))
854 +)))
692 692  
856 +(((
693 693  **Example:**
858 +)))
694 694  
860 +(((
695 695  **AT+CMDDL1=1000** to send the open time to 1000ms
862 +)))
696 696  
864 +(((
865 +
866 +)))
697 697  
698 -* **Downlink Payload:**
868 +* (((
869 +**Downlink Payload:**
870 +)))
699 699  
872 +(((
700 700  **0x AA aa bb cc**
874 +)))
701 701  
876 +(((
702 702  Same as: AT+CMDDLaa=hex(bb cc)*1000
878 +)))
703 703  
880 +(((
704 704   **Example:**
882 +)))
705 705  
884 +(((
706 706   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
886 +)))
707 707  
708 708  
709 709  
890 +
710 710  ==== **Uplink payload mode** ====
711 711  
893 +(((
712 712  Define to use one uplink or multiple uplinks for the sampling.
895 +)))
713 713  
897 +(((
714 714  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
899 +)))
715 715  
716 -* **AT Command:**
901 +* (((
902 +**AT Command:**
903 +)))
717 717  
718 718  (% class="box infomessage" %)
719 719  (((
907 +(((
720 720  **AT+DATAUP=0**
721 721  )))
910 +)))
722 722  
723 723  (% class="box infomessage" %)
724 724  (((
914 +(((
725 725  **AT+DATAUP=1**
726 726  )))
917 +)))
727 727  
919 +(((
920 +
921 +)))
728 728  
729 -* **Downlink Payload:**
923 +* (((
924 +**Downlink Payload:**
925 +)))
730 730  
927 +(((
731 731  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
929 +)))
732 732  
931 +(((
733 733  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
933 +)))
734 734  
735 735  
736 736  
937 +
737 737  ==== **Manually trigger an Uplink** ====
738 738  
940 +(((
739 739  Ask device to send an uplink immediately.
942 +)))
740 740  
741 -* **AT Command:**
944 +* (((
945 +**AT Command:**
946 +)))
742 742  
948 +(((
743 743  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
950 +)))
744 744  
952 +(((
953 +
954 +)))
745 745  
746 -* **Downlink Payload:**
956 +* (((
957 +**Downlink Payload:**
958 +)))
747 747  
960 +(((
748 748  **0x08 FF**, RS485-LN will immediately send an uplink.
962 +)))
749 749  
750 750  
751 751  
966 +
752 752  ==== **Clear RS485 Command** ====
753 753  
969 +(((
754 754  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
971 +)))
755 755  
756 -* **AT Command:**
973 +* (((
974 +**AT Command:**
975 +)))
757 757  
977 +(((
758 758  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
979 +)))
759 759  
981 +(((
760 760  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
983 +)))
761 761  
985 +(((
762 762  Example screen shot after clear all RS485 commands. 
987 +)))
763 763  
989 +(((
990 +
991 +)))
764 764  
993 +(((
765 765  The uplink screen shot is:
995 +)))
766 766  
767 767  [[image:1654160691922-496.png]]
768 768  
769 769  
770 -* **Downlink Payload:**
1000 +* (((
1001 +**Downlink Payload:**
1002 +)))
771 771  
1004 +(((
772 772  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1006 +)))
773 773  
774 774  
775 775  
1010 +
776 776  ==== **Set Serial Communication Parameters** ====
777 777  
1013 +(((
778 778  Set the Rs485 serial communication parameters:
1015 +)))
779 779  
780 -* **AT Command:**
1017 +* (((
1018 +**AT Command:**
1019 +)))
781 781  
1021 +(((
782 782  Set Baud Rate:
1023 +)))
783 783  
784 784  (% class="box infomessage" %)
785 785  (((
1027 +(((
786 786  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
787 787  )))
1030 +)))
788 788  
1032 +(((
789 789  Set UART Parity
1034 +)))
790 790  
791 791  (% class="box infomessage" %)
792 792  (((
1038 +(((
793 793  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
794 794  )))
1041 +)))
795 795  
1043 +(((
796 796  Set STOPBIT
1045 +)))
797 797  
798 798  (% class="box infomessage" %)
799 799  (((
1049 +(((
800 800  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
801 801  )))
1052 +)))
802 802  
1054 +(((
1055 +
1056 +)))
803 803  
804 -* **Downlink Payload:**
1058 +* (((
1059 +**Downlink Payload:**
1060 +)))
805 805  
1062 +(((
806 806  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1064 +)))
807 807  
1066 +(((
808 808  **Example:**
1068 +)))
809 809  
810 -* A7 01 00 60   same as AT+BAUDR=9600
811 -* A7 01 04 80  same as AT+BAUDR=115200
1070 +* (((
1071 +A7 01 00 60   same as AT+BAUDR=9600
1072 +)))
1073 +* (((
1074 +A7 01 04 80  same as AT+BAUDR=115200
1075 +)))
812 812  
1077 +(((
813 813  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1079 +)))
814 814  
1081 +(((
815 815  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1083 +)))
816 816  
817 817  
1086 +
1087 +
818 818  == 3.6 Listening mode for RS485 network ==
819 819  
1090 +(((
820 820  This feature support since firmware v1.4
1092 +)))
821 821  
1094 +(((
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.
1096 +)))
823 823  
824 824  [[image:image-20220602171200-8.png||height="567" width="1007"]]
825 825  
1100 +(((
826 826  To enable the listening mode, use can run the command AT+RXMODE.
1102 +)))
827 827  
1104 +(((
1105 +
1106 +)))
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)
1108 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1109 +|=(% style="width: 100px;" %)(((
1110 +**Command example**
1111 +)))|=(% style="width: 400px;" %)(((
1112 +**Function**
1113 +)))
1114 +|(% style="width:100px" %)(((
1115 +AT+RXMODE=1,10
1116 +)))|(% style="width:400px" %)(((
1117 +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.
1118 +)))
1119 +|(% style="width:100px" %)(((
1120 +AT+RXMODE=2,500
1121 +)))|(% style="width:400px" %)(((
1122 +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
1123 +)))
1124 +|(% style="width:100px" %)(((
1125 +AT+RXMODE=0,0
1126 +)))|(% style="width:400px" %)(((
1127 +Disable listening mode. This is the default settings.
1128 +)))
1129 +|(% style="width:100px" %)(((
1130 +
1131 +)))|(% style="width:400px" %)(((
1132 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1133 +)))
835 835  
1135 +(((
836 836  **Downlink Command:**
1137 +)))
837 837  
1139 +(((
838 838  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1141 +)))
839 839  
1143 +(((
1144 +
1145 +)))
840 840  
1147 +(((
841 841  **Example**:
1149 +)))
842 842  
1151 +(((
843 843  The RS485-LN is set to AT+RXMODE=2,1000
1153 +)))
844 844  
1155 +(((
845 845  There is a two Modbus commands in the RS485 network as below:
1157 +)))
846 846  
1159 +(((
847 847  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1161 +)))
848 848  
1163 +(((
849 849  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1165 +)))
850 850  
1167 +(((
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
1169 +)))
852 852  
1171 +(((
853 853  [[image:image-20220602171200-9.png]]
1173 +)))
854 854  
1175 +(((
1176 +
1177 +)))
855 855  
1179 +(((
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.
1181 +)))
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"]]
1187 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1188 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1189 +|(% 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**
1190 +|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1191 +|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
867 867  
868 868  
869 869  == 3.8 LEDs ==
870 870  
871 -(% border="1" style="background-color:#f7faff; width:500px" %)
872 -|=**LEDs**|=**Feature**
1196 +
1197 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1198 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
873 873  |**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.
1200 +|**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.
875 875  
876 876  
877 877  = 4. Case Study =
... ... @@ -883,19 +883,26 @@
883 883  
884 884  == 5.1 Access AT Command ==
885 885  
1212 +(((
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.
1214 +)))
887 887  
888 888  [[image:1654162355560-817.png]]
889 889  
890 890  
1219 +(((
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:
1221 +)))
892 892  
893 893  [[image:1654162368066-342.png]]
894 894  
895 895  
1226 +(((
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/]]
1228 +)))
897 897  
898 898  
1231 +
899 899  == 5.2 Common AT Command Sequence ==
900 900  
901 901  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -969,13 +969,23 @@
969 969  
970 970  == 6.1 How to upgrade the image? ==
971 971  
1305 +(((
972 972  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1307 +)))
973 973  
974 -* Support new features
975 -* For bug fix
976 -* Change LoRaWAN bands.
1309 +* (((
1310 +Support new features
1311 +)))
1312 +* (((
1313 +For bug fix
1314 +)))
1315 +* (((
1316 +Change LoRaWAN bands.
1317 +)))
977 977  
1319 +(((
978 978  Below shows the hardware connection for how to upload an image to RS485-LN:
1321 +)))
979 979  
980 980  [[image:1654162535040-878.png]]
981 981  
... ... @@ -986,8 +986,10 @@
986 986  **Step3: **Open flashloader; choose the correct COM port to update.
987 987  
988 988  (((
1332 +(((
989 989  (% 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.
990 990  )))
1335 +)))
991 991  
992 992  
993 993  [[image:image-20220602175818-12.png]]
... ... @@ -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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