Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 57.39 >
edited by Xiaoling
on 2022/06/06 09:35
To version < 58.26 >
edited by Xiaoling
on 2022/06/06 11:27
>
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -24,23 +24,33 @@
24 24  
25 25  (((
26 26  (((
27 +(((
27 27  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
28 28  )))
30 +)))
29 29  
30 30  (((
33 +(((
31 31  RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
32 32  )))
36 +)))
33 33  
34 34  (((
39 +(((
35 35  (% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
36 36  )))
42 +)))
37 37  
38 38  (((
45 +(((
39 39  (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
47 +)))
40 40  
49 +(((
41 41  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
42 42  )))
43 43  )))
53 +)))
44 44  
45 45  [[image:1653267211009-519.png||height="419" width="724"]]
46 46  
... ... @@ -93,6 +93,7 @@
93 93  * Support Modbus protocol
94 94  * Support Interrupt uplink (Since hardware version v1.2)
95 95  
106 +
96 96  == 1.4 Applications ==
97 97  
98 98  * Smart Buildings & Home Automation
... ... @@ -102,6 +102,7 @@
102 102  * Smart Cities
103 103  * Smart Factory
104 104  
116 +
105 105  == 1.5 Firmware Change log ==
106 106  
107 107  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -111,9 +111,13 @@
111 111  
112 112  (((
113 113  (((
126 +(((
114 114  v1.2: Add External Interrupt Pin.
128 +)))
115 115  
130 +(((
116 116  v1.0: Release
132 +)))
117 117  
118 118  
119 119  )))
... ... @@ -141,7 +141,9 @@
141 141  == 3.1 How it works? ==
142 142  
143 143  (((
160 +(((
144 144  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.
162 +)))
145 145  
146 146  
147 147  )))
... ... @@ -231,19 +231,19 @@
231 231  
232 232  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:
233 233  
234 -(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
235 -|(% style="width:128px" %)(((
252 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
253 +|=(% style="width: 110px;" %)(((
236 236  **AT Commands**
237 -)))|(% style="width:305px" %)(((
255 +)))|=(% style="width: 190px;" %)(((
238 238  **Description**
239 -)))|(% style="width:346px" %)(((
257 +)))|=(% style="width: 190px;" %)(((
240 240  **Example**
241 241  )))
242 -|(% style="width:128px" %)(((
260 +|(% style="width:110px" %)(((
243 243  AT+BAUDR
244 -)))|(% style="width:305px" %)(((
262 +)))|(% style="width:190px" %)(((
245 245  Set the baud rate (for RS485 connection). Default Value is: 9600.
246 -)))|(% style="width:346px" %)(((
264 +)))|(% style="width:190px" %)(((
247 247  (((
248 248  AT+BAUDR=9600
249 249  )))
... ... @@ -252,11 +252,11 @@
252 252  Options: (1200,2400,4800,14400,19200,115200)
253 253  )))
254 254  )))
255 -|(% style="width:128px" %)(((
273 +|(% style="width:110px" %)(((
256 256  AT+PARITY
257 -)))|(% style="width:305px" %)(((
275 +)))|(% style="width:190px" %)(((
258 258  Set UART parity (for RS485 connection)
259 -)))|(% style="width:346px" %)(((
277 +)))|(% style="width:190px" %)(((
260 260  (((
261 261  AT+PARITY=0
262 262  )))
... ... @@ -265,9 +265,9 @@
265 265  Option: 0: no parity, 1: odd parity, 2: even parity
266 266  )))
267 267  )))
268 -|(% style="width:128px" %)(((
286 +|(% style="width:110px" %)(((
269 269  AT+STOPBIT
270 -)))|(% style="width:305px" %)(((
288 +)))|(% style="width:190px" %)(((
271 271  (((
272 272  Set serial stopbit (for RS485 connection)
273 273  )))
... ... @@ -275,7 +275,7 @@
275 275  (((
276 276  
277 277  )))
278 -)))|(% style="width:346px" %)(((
296 +)))|(% style="width:190px" %)(((
279 279  (((
280 280  AT+STOPBIT=0 for 1bit
281 281  )))
... ... @@ -289,6 +289,8 @@
289 289  )))
290 290  )))
291 291  
310 +
311 +
292 292  === 3.3.2 Configure sensors ===
293 293  
294 294  (((
... ... @@ -297,16 +297,18 @@
297 297  )))
298 298  )))
299 299  
300 -(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
301 -|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
302 -|AT+CFGDEV|(% style="width:418px" %)(((
320 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
321 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
322 +|AT+CFGDEV|(% style="width:110px" %)(((
303 303  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
304 304  
305 305  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
306 306  
307 307  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
308 -)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
328 +)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
309 309  
330 +
331 +
310 310  === 3.3.3 Configure read commands for each sampling ===
311 311  
312 312  (((
... ... @@ -352,8 +352,8 @@
352 352  
353 353  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
354 354  
355 -(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
356 -|(% style="width:722px" %)(((
377 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
378 +|(% style="width:510px" %)(((
357 357  **AT+DATACUTx=a,b,c**
358 358  
359 359  * **a: length for the return of AT+COMMAND**
... ... @@ -479,33 +479,35 @@
479 479  
480 480  == 3.4 Uplink Payload ==
481 481  
482 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
483 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
484 -|Value|(% style="width:120px" %)(((
485 -Battery(mV)
486 486  
487 -&
505 +[[image:image-20220606110929-1.png]]
488 488  
489 -Interrupt _Flag
490 -)))|(% style="width:116px" %)(((
491 -PAYLOAD_VER
492 -
493 -
494 -)))|(% 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.
495 -
496 496  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
497 497  
498 498  
499 499  == 3.5 Configure RS485-BL via AT or Downlink ==
500 500  
512 +(((
501 501  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
514 +)))
502 502  
516 +(((
503 503  There are two kinds of Commands:
518 +)))
504 504  
505 -* (% 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 +)))
506 506  
507 -* (% 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 +)))
508 508  
528 +(((
529 +
530 +)))
531 +
532 +
509 509  === 3.5.1 Common Commands ===
510 510  
511 511  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]]
... ... @@ -524,142 +524,282 @@
524 524  
525 525  
526 526  
551 +
527 527  ==== **RS485 Debug Command** ====
528 528  
554 +(((
529 529  This command is used to configure the RS485 devices; they won’t be used during sampling.
556 +)))
530 530  
531 -* **AT Command**
558 +* (((
559 +**AT Command**
560 +)))
532 532  
533 533  (% class="box infomessage" %)
534 534  (((
564 +(((
535 535  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
536 536  )))
567 +)))
537 537  
569 +(((
538 538  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
571 +)))
539 539  
540 -* **Downlink Payload**
573 +* (((
574 +**Downlink Payload**
575 +)))
541 541  
577 +(((
542 542  Format: A8 MM NN XX XX XX XX YY
579 +)))
543 543  
581 +(((
544 544  Where:
583 +)))
545 545  
546 -* MM: 1: add CRC-16/MODBUS ; 0: no CRC
547 -* NN: The length of RS485 command
548 -* XX XX XX XX: RS485 command total NN bytes
549 -* YY: How many bytes will be uplink from the return of this RS485 command,
550 -** if YY=0, RS485-LN will execute the downlink command without uplink;
551 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
552 -** 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 +)))
553 553  
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 +(((
554 554  **Example 1** ~-~-> Configure without ask for uplink (YY=0)
612 +)))
555 555  
614 +(((
556 556  To connect a Modbus Alarm with below commands.
616 +)))
557 557  
558 -* 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 +)))
559 559  
560 -* 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 +)))
561 561  
626 +(((
562 562  So if user want to use downlink command to control to RS485 Alarm, he can use:
628 +)))
563 563  
630 +(((
564 564  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
632 +)))
565 565  
634 +(((
566 566  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
636 +)))
567 567  
638 +(((
568 568  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 +)))
569 569  
642 +(((
643 +
644 +)))
570 570  
646 +(((
571 571  **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
648 +)))
572 572  
650 +(((
573 573  User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
652 +)))
574 574  
654 +(((
655 +
656 +)))
575 575  
658 +(((
576 576  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 +)))
577 577  
662 +(((
578 578   **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
664 +)))
579 579  
666 +(((
580 580   [[image:1654159460680-153.png]]
668 +)))
581 581  
582 582  
583 583  
672 +
584 584  ==== **Set Payload version** ====
585 585  
675 +(((
586 586  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 +)))
587 587  
588 -* **AT Command:**
679 +* (((
680 +**AT Command:**
681 +)))
589 589  
590 590  (% class="box infomessage" %)
591 591  (((
685 +(((
592 592  **AT+PAYVER: Set PAYVER field = 1**
593 593  )))
688 +)))
594 594  
595 -* **Downlink Payload:**
690 +* (((
691 +**Downlink Payload:**
692 +)))
596 596  
694 +(((
597 597  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
696 +)))
598 598  
698 +(((
599 599  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
700 +)))
600 600  
601 601  
602 602  
704 +
603 603  ==== **Set RS485 Sampling Commands** ====
604 604  
707 +(((
605 605  AT+COMMANDx or AT+DATACUTx
709 +)))
606 606  
711 +(((
607 607  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 +)))
608 608  
715 +(((
716 +
717 +)))
609 609  
610 -* **AT Command:**
719 +* (((
720 +**AT Command:**
721 +)))
611 611  
612 612  (% class="box infomessage" %)
613 613  (((
725 +(((
614 614  **AT+COMMANDx: Configure RS485 read command to sensor.**
615 615  )))
728 +)))
616 616  
617 617  (% class="box infomessage" %)
618 618  (((
732 +(((
619 619  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
620 620  )))
735 +)))
621 621  
737 +(((
738 +
739 +)))
622 622  
623 -* **Downlink Payload:**
741 +* (((
742 +**Downlink Payload:**
743 +)))
624 624  
745 +(((
625 625  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
747 +)))
626 626  
749 +(((
627 627  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
751 +)))
628 628  
753 +(((
629 629  Format: AF MM NN LL XX XX XX XX YY
755 +)))
630 630  
757 +(((
631 631  Where:
759 +)))
632 632  
633 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
634 -* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
635 -* LL:  The length of AT+COMMAND or AT+DATACUT command
636 -* XX XX XX XX: AT+COMMAND or AT+DATACUT command
637 -* 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 +)))
638 638  
777 +(((
639 639  **Example:**
779 +)))
640 640  
781 +(((
641 641  (% 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 +)))
642 642  
785 +(((
643 643  (% 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 +)))
644 644  
789 +(((
645 645  (% 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 +)))
646 646  
647 647  
648 648  
795 +
649 649  ==== **Fast command to handle MODBUS device** ====
650 650  
798 +(((
651 651  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 +)))
652 652  
802 +(((
653 653  This command is valid since v1.3 firmware version
804 +)))
654 654  
806 +(((
655 655  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 +)))
656 656  
810 +(((
811 +
812 +)))
657 657  
814 +(((
658 658  **Example:**
816 +)))
659 659  
660 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
661 -* 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.
662 -* 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 +)))
663 663  
664 664  [[image:image-20220602165351-6.png]]
665 665  
... ... @@ -667,189 +667,360 @@
667 667  
668 668  
669 669  
834 +
670 670  ==== **RS485 command timeout** ====
671 671  
837 +(((
672 672  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 +)))
673 673  
841 +(((
674 674  Default value: 0, range:  0 ~~ 65 seconds
843 +)))
675 675  
676 -* **AT Command:**
845 +* (((
846 +**AT Command:**
847 +)))
677 677  
678 678  (% class="box infomessage" %)
679 679  (((
851 +(((
680 680  **AT+CMDDLaa=hex(bb cc)*1000**
681 681  )))
854 +)))
682 682  
856 +(((
683 683  **Example:**
858 +)))
684 684  
860 +(((
685 685  **AT+CMDDL1=1000** to send the open time to 1000ms
862 +)))
686 686  
864 +(((
865 +
866 +)))
687 687  
688 -* **Downlink Payload:**
868 +* (((
869 +**Downlink Payload:**
870 +)))
689 689  
872 +(((
690 690  **0x AA aa bb cc**
874 +)))
691 691  
876 +(((
692 692  Same as: AT+CMDDLaa=hex(bb cc)*1000
878 +)))
693 693  
880 +(((
694 694   **Example:**
882 +)))
695 695  
884 +(((
696 696   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
886 +)))
697 697  
698 698  
699 699  
890 +
700 700  ==== **Uplink payload mode** ====
701 701  
893 +(((
702 702  Define to use one uplink or multiple uplinks for the sampling.
895 +)))
703 703  
897 +(((
704 704  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
899 +)))
705 705  
706 -* **AT Command:**
901 +* (((
902 +**AT Command:**
903 +)))
707 707  
708 708  (% class="box infomessage" %)
709 709  (((
907 +(((
710 710  **AT+DATAUP=0**
711 711  )))
910 +)))
712 712  
713 713  (% class="box infomessage" %)
714 714  (((
914 +(((
715 715  **AT+DATAUP=1**
716 716  )))
917 +)))
717 717  
919 +(((
920 +
921 +)))
718 718  
719 -* **Downlink Payload:**
923 +* (((
924 +**Downlink Payload:**
925 +)))
720 720  
927 +(((
721 721  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
929 +)))
722 722  
931 +(((
723 723  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
933 +)))
724 724  
725 725  
726 726  
937 +
727 727  ==== **Manually trigger an Uplink** ====
728 728  
940 +(((
729 729  Ask device to send an uplink immediately.
942 +)))
730 730  
731 -* **AT Command:**
944 +* (((
945 +**AT Command:**
946 +)))
732 732  
948 +(((
733 733  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
950 +)))
734 734  
952 +(((
953 +
954 +)))
735 735  
736 -* **Downlink Payload:**
956 +* (((
957 +**Downlink Payload:**
958 +)))
737 737  
960 +(((
738 738  **0x08 FF**, RS485-LN will immediately send an uplink.
962 +)))
739 739  
740 740  
741 741  
966 +
742 742  ==== **Clear RS485 Command** ====
743 743  
969 +(((
744 744  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
971 +)))
745 745  
746 -* **AT Command:**
973 +* (((
974 +**AT Command:**
975 +)))
747 747  
977 +(((
748 748  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
979 +)))
749 749  
981 +(((
750 750  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
983 +)))
751 751  
985 +(((
752 752  Example screen shot after clear all RS485 commands. 
987 +)))
753 753  
989 +(((
990 +
991 +)))
754 754  
993 +(((
755 755  The uplink screen shot is:
995 +)))
756 756  
757 757  [[image:1654160691922-496.png]]
758 758  
759 759  
760 -* **Downlink Payload:**
1000 +* (((
1001 +**Downlink Payload:**
1002 +)))
761 761  
1004 +(((
762 762  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1006 +)))
763 763  
764 764  
765 765  
1010 +
766 766  ==== **Set Serial Communication Parameters** ====
767 767  
1013 +(((
768 768  Set the Rs485 serial communication parameters:
1015 +)))
769 769  
770 -* **AT Command:**
1017 +* (((
1018 +**AT Command:**
1019 +)))
771 771  
1021 +(((
772 772  Set Baud Rate:
1023 +)))
773 773  
774 774  (% class="box infomessage" %)
775 775  (((
1027 +(((
776 776  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
777 777  )))
1030 +)))
778 778  
1032 +(((
779 779  Set UART Parity
1034 +)))
780 780  
781 781  (% class="box infomessage" %)
782 782  (((
1038 +(((
783 783  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
784 784  )))
1041 +)))
785 785  
1043 +(((
786 786  Set STOPBIT
1045 +)))
787 787  
788 788  (% class="box infomessage" %)
789 789  (((
1049 +(((
790 790  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
791 791  )))
1052 +)))
792 792  
1054 +(((
1055 +
1056 +)))
793 793  
794 -* **Downlink Payload:**
1058 +* (((
1059 +**Downlink Payload:**
1060 +)))
795 795  
1062 +(((
796 796  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1064 +)))
797 797  
1066 +(((
798 798  **Example:**
1068 +)))
799 799  
800 -* A7 01 00 60   same as AT+BAUDR=9600
801 -* 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 +)))
802 802  
1077 +(((
803 803  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1079 +)))
804 804  
1081 +(((
805 805  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1083 +)))
806 806  
807 807  
1086 +
1087 +
808 808  == 3.6 Listening mode for RS485 network ==
809 809  
1090 +(((
810 810  This feature support since firmware v1.4
1092 +)))
811 811  
1094 +(((
812 812  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 +)))
813 813  
814 814  [[image:image-20220602171200-8.png||height="567" width="1007"]]
815 815  
1100 +(((
816 816  To enable the listening mode, use can run the command AT+RXMODE.
1102 +)))
817 817  
1104 +(((
1105 +
1106 +)))
818 818  
819 -(% border="1" style="background-color:#ffffcc; width:500px" %)
820 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
821 -|(% 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.
822 -|(% 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
823 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
824 -|(% 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: 161px;" %)(((
1110 +**Command example:**
1111 +)))|=(% style="width: 337px;" %)(((
1112 +**Function**
1113 +)))
1114 +|(% style="width:161px" %)(((
1115 +AT+RXMODE=1,10
1116 +)))|(% style="width:337px" %)(((
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:161px" %)(((
1120 +AT+RXMODE=2,500
1121 +)))|(% style="width:337px" %)(((
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:161px" %)(((
1125 +AT+RXMODE=0,0
1126 +)))|(% style="width:337px" %)(((
1127 +Disable listening mode. This is the default settings.
1128 +)))
1129 +|(% style="width:161px" %)(((
1130 +
1131 +)))|(% style="width:337px" %)(((
1132 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1133 +)))
825 825  
1135 +(((
826 826  **Downlink Command:**
1137 +)))
827 827  
1139 +(((
828 828  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1141 +)))
829 829  
1143 +(((
1144 +
1145 +)))
830 830  
1147 +(((
831 831  **Example**:
1149 +)))
832 832  
1151 +(((
833 833  The RS485-LN is set to AT+RXMODE=2,1000
1153 +)))
834 834  
1155 +(((
835 835  There is a two Modbus commands in the RS485 network as below:
1157 +)))
836 836  
1159 +(((
837 837  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1161 +)))
838 838  
1163 +(((
839 839  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1165 +)))
840 840  
1167 +(((
841 841  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 +)))
842 842  
1171 +(((
843 843  [[image:image-20220602171200-9.png]]
1173 +)))
844 844  
1175 +(((
1176 +
1177 +)))
845 845  
1179 +(((
846 846  (% 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 +)))
847 847  
848 848  
849 849  == 3.7 Buttons ==
850 850  
851 851  
852 -(% border="1" style="background-color:#f7faff; width:500px" %)
1187 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:500px" %)
853 853  |=**Button**|=(% style="width: 1420px;" %)**Feature**
854 854  |**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**
855 855  |**RST**|(% style="width:1420px" %)Reboot RS485
... ... @@ -856,14 +856,16 @@
856 856  |**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
857 857  
858 858  
1194 +
859 859  == 3.8 LEDs ==
860 860  
861 -(% border="1" style="background-color:#f7faff; width:500px" %)
1197 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:500px" %)
862 862  |=**LEDs**|=**Feature**
863 863  |**PWR**|Always on if there is power
864 864  |**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.
865 865  
866 866  
1203 +
867 867  = 4. Case Study =
868 868  
869 869  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]]
... ... @@ -873,17 +873,23 @@
873 873  
874 874  == 5.1 Access AT Command ==
875 875  
1213 +(((
876 876  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.
1215 +)))
877 877  
878 878  [[image:1654162355560-817.png]]
879 879  
880 880  
1220 +(((
881 881  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:
1222 +)))
882 882  
883 883  [[image:1654162368066-342.png]]
884 884  
885 885  
1227 +(((
886 886  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/]]
1229 +)))
887 887  
888 888  
889 889  == 5.2 Common AT Command Sequence ==
... ... @@ -1041,7 +1041,6 @@
1041 1041  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1042 1042  
1043 1043  
1044 -
1045 1045  = 9.Packing Info =
1046 1046  
1047 1047  
... ... @@ -1059,7 +1059,6 @@
1059 1059  * Weight / pcs : 170g
1060 1060  
1061 1061  
1062 -
1063 1063  = 10. FCC Caution for RS485LN-US915 =
1064 1064  
1065 1065  (((
... ... @@ -1113,5 +1113,9 @@
1113 1113  
1114 1114  = 11. Support =
1115 1115  
1116 -* Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1117 -* Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
1457 +* (((
1458 +Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1459 +)))
1460 +* (((
1461 +Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
1462 +)))
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