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 < 59.3 >
edited by Xiaoling
on 2022/06/06 14:20
>
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  
... ... @@ -82,6 +82,8 @@
82 82  * Automatic RF Sense and CAD with ultra-fast AFC.
83 83  * Packet engine up to 256 bytes with CRC
84 84  
95 +
96 +
85 85  == 1.3 Features ==
86 86  
87 87  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -93,6 +93,8 @@
93 93  * Support Modbus protocol
94 94  * Support Interrupt uplink (Since hardware version v1.2)
95 95  
108 +
109 +
96 96  == 1.4 Applications ==
97 97  
98 98  * Smart Buildings & Home Automation
... ... @@ -111,9 +111,13 @@
111 111  
112 112  (((
113 113  (((
128 +(((
114 114  v1.2: Add External Interrupt Pin.
130 +)))
115 115  
132 +(((
116 116  v1.0: Release
134 +)))
117 117  
118 118  
119 119  )))
... ... @@ -141,7 +141,9 @@
141 141  == 3.1 How it works? ==
142 142  
143 143  (((
162 +(((
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.
164 +)))
145 145  
146 146  
147 147  )))
... ... @@ -217,11 +217,15 @@
217 217  
218 218  (((
219 219  (((
240 +(((
220 220  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.
221 221  )))
243 +)))
222 222  
223 223  (((
246 +(((
224 224  (% 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
248 +)))
225 225  
226 226  
227 227  )))
... ... @@ -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" %)(((
258 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
259 +|=(% style="width: 110px;" %)(((
236 236  **AT Commands**
237 -)))|(% style="width:305px" %)(((
261 +)))|=(% style="width: 190px;" %)(((
238 238  **Description**
239 -)))|(% style="width:346px" %)(((
263 +)))|=(% style="width: 190px;" %)(((
240 240  **Example**
241 241  )))
242 -|(% style="width:128px" %)(((
266 +|(% style="width:110px" %)(((
243 243  AT+BAUDR
244 -)))|(% style="width:305px" %)(((
268 +)))|(% style="width:190px" %)(((
245 245  Set the baud rate (for RS485 connection). Default Value is: 9600.
246 -)))|(% style="width:346px" %)(((
270 +)))|(% 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" %)(((
279 +|(% style="width:110px" %)(((
256 256  AT+PARITY
257 -)))|(% style="width:305px" %)(((
281 +)))|(% style="width:190px" %)(((
258 258  Set UART parity (for RS485 connection)
259 -)))|(% style="width:346px" %)(((
283 +)))|(% 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" %)(((
292 +|(% style="width:110px" %)(((
269 269  AT+STOPBIT
270 -)))|(% style="width:305px" %)(((
294 +)))|(% 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" %)(((
302 +)))|(% style="width:190px" %)(((
279 279  (((
280 280  AT+STOPBIT=0 for 1bit
281 281  )))
... ... @@ -297,15 +297,21 @@
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" %)(((
324 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
325 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
326 +|AT+CFGDEV|(% style="width:110px" %)(((
327 +(((
303 303  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
329 +)))
304 304  
331 +(((
305 305  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
333 +)))
306 306  
335 +(((
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
337 +)))
338 +)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
309 309  
310 310  === 3.3.3 Configure read commands for each sampling ===
311 311  
... ... @@ -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" %)(((
385 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
386 +|(% 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 -&
513 +[[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  
520 +(((
501 501  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
522 +)))
502 502  
524 +(((
503 503  There are two kinds of Commands:
526 +)))
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]]
528 +* (((
529 +(% 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]]
530 +)))
506 506  
507 -* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
532 +* (((
533 +(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
534 +)))
508 508  
536 +(((
537 +
538 +)))
539 +
540 +
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  
559 +
527 527  ==== **RS485 Debug Command** ====
528 528  
562 +(((
529 529  This command is used to configure the RS485 devices; they won’t be used during sampling.
564 +)))
530 530  
531 -* **AT Command**
566 +* (((
567 +**AT Command**
568 +)))
532 532  
533 533  (% class="box infomessage" %)
534 534  (((
572 +(((
535 535  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
536 536  )))
575 +)))
537 537  
577 +(((
538 538  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
579 +)))
539 539  
540 -* **Downlink Payload**
581 +* (((
582 +**Downlink Payload**
583 +)))
541 541  
585 +(((
542 542  Format: A8 MM NN XX XX XX XX YY
587 +)))
543 543  
589 +(((
544 544  Where:
591 +)))
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.
593 +* (((
594 +MM: 1: add CRC-16/MODBUS ; 0: no CRC
595 +)))
596 +* (((
597 +NN: The length of RS485 command
598 +)))
599 +* (((
600 +XX XX XX XX: RS485 command total NN bytes
601 +)))
602 +* (((
603 +(((
604 +YY: How many bytes will be uplink from the return of this RS485 command,
605 +)))
553 553  
607 +* (((
608 +if YY=0, RS485-LN will execute the downlink command without uplink;
609 +)))
610 +* (((
611 +if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
612 +)))
613 +* (((
614 +if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
615 +)))
616 +)))
617 +
618 +(((
554 554  **Example 1** ~-~-> Configure without ask for uplink (YY=0)
620 +)))
555 555  
622 +(((
556 556  To connect a Modbus Alarm with below commands.
624 +)))
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.
626 +* (((
627 +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.
628 +)))
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.
630 +* (((
631 +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.
632 +)))
561 561  
634 +(((
562 562  So if user want to use downlink command to control to RS485 Alarm, he can use:
636 +)))
563 563  
638 +(((
564 564  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
640 +)))
565 565  
642 +(((
566 566  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
644 +)))
567 567  
646 +(((
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.
648 +)))
569 569  
650 +(((
651 +
652 +)))
570 570  
654 +(((
571 571  **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
656 +)))
572 572  
658 +(((
573 573  User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
660 +)))
574 574  
662 +(((
663 +
664 +)))
575 575  
666 +(((
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:
668 +)))
577 577  
670 +(((
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**
672 +)))
579 579  
674 +(((
580 580   [[image:1654159460680-153.png]]
676 +)))
581 581  
582 582  
583 583  
680 +
584 584  ==== **Set Payload version** ====
585 585  
683 +(((
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.
685 +)))
587 587  
588 -* **AT Command:**
687 +* (((
688 +**AT Command:**
689 +)))
589 589  
590 590  (% class="box infomessage" %)
591 591  (((
693 +(((
592 592  **AT+PAYVER: Set PAYVER field = 1**
593 593  )))
696 +)))
594 594  
595 -* **Downlink Payload:**
698 +* (((
699 +**Downlink Payload:**
700 +)))
596 596  
702 +(((
597 597  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
704 +)))
598 598  
706 +(((
599 599  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
708 +)))
600 600  
601 601  
602 602  
712 +
603 603  ==== **Set RS485 Sampling Commands** ====
604 604  
715 +(((
605 605  AT+COMMANDx or AT+DATACUTx
717 +)))
606 606  
719 +(((
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"]].
721 +)))
608 608  
723 +(((
724 +
725 +)))
609 609  
610 -* **AT Command:**
727 +* (((
728 +**AT Command:**
729 +)))
611 611  
612 612  (% class="box infomessage" %)
613 613  (((
733 +(((
614 614  **AT+COMMANDx: Configure RS485 read command to sensor.**
615 615  )))
736 +)))
616 616  
617 617  (% class="box infomessage" %)
618 618  (((
740 +(((
619 619  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
620 620  )))
743 +)))
621 621  
745 +(((
746 +
747 +)))
622 622  
623 -* **Downlink Payload:**
749 +* (((
750 +**Downlink Payload:**
751 +)))
624 624  
753 +(((
625 625  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
755 +)))
626 626  
757 +(((
627 627  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
759 +)))
628 628  
761 +(((
629 629  Format: AF MM NN LL XX XX XX XX YY
763 +)))
630 630  
765 +(((
631 631  Where:
767 +)))
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.
769 +* (((
770 +MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
771 +)))
772 +* (((
773 +NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
774 +)))
775 +* (((
776 +LL:  The length of AT+COMMAND or AT+DATACUT command
777 +)))
778 +* (((
779 +XX XX XX XX: AT+COMMAND or AT+DATACUT command
780 +)))
781 +* (((
782 +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.
783 +)))
638 638  
785 +(((
639 639  **Example:**
787 +)))
640 640  
789 +(((
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
791 +)))
642 642  
793 +(((
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**
795 +)))
644 644  
797 +(((
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**
799 +)))
646 646  
647 647  
648 648  
803 +
649 649  ==== **Fast command to handle MODBUS device** ====
650 650  
806 +(((
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]].
808 +)))
652 652  
810 +(((
653 653  This command is valid since v1.3 firmware version
812 +)))
654 654  
814 +(((
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.
816 +)))
656 656  
818 +(((
819 +
820 +)))
657 657  
822 +(((
658 658  **Example:**
824 +)))
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.
826 +* (((
827 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
828 +)))
829 +* (((
830 +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.
831 +)))
832 +* (((
833 +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.
834 +)))
663 663  
664 664  [[image:image-20220602165351-6.png]]
665 665  
... ... @@ -667,203 +667,375 @@
667 667  
668 668  
669 669  
842 +
670 670  ==== **RS485 command timeout** ====
671 671  
845 +(((
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.
847 +)))
673 673  
849 +(((
674 674  Default value: 0, range:  0 ~~ 65 seconds
851 +)))
675 675  
676 -* **AT Command:**
853 +* (((
854 +**AT Command:**
855 +)))
677 677  
678 678  (% class="box infomessage" %)
679 679  (((
859 +(((
680 680  **AT+CMDDLaa=hex(bb cc)*1000**
681 681  )))
862 +)))
682 682  
864 +(((
683 683  **Example:**
866 +)))
684 684  
868 +(((
685 685  **AT+CMDDL1=1000** to send the open time to 1000ms
870 +)))
686 686  
872 +(((
873 +
874 +)))
687 687  
688 -* **Downlink Payload:**
876 +* (((
877 +**Downlink Payload:**
878 +)))
689 689  
880 +(((
690 690  **0x AA aa bb cc**
882 +)))
691 691  
884 +(((
692 692  Same as: AT+CMDDLaa=hex(bb cc)*1000
886 +)))
693 693  
888 +(((
694 694   **Example:**
890 +)))
695 695  
892 +(((
696 696   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
894 +)))
697 697  
698 698  
699 699  
898 +
700 700  ==== **Uplink payload mode** ====
701 701  
901 +(((
702 702  Define to use one uplink or multiple uplinks for the sampling.
903 +)))
703 703  
905 +(((
704 704  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
907 +)))
705 705  
706 -* **AT Command:**
909 +* (((
910 +**AT Command:**
911 +)))
707 707  
708 708  (% class="box infomessage" %)
709 709  (((
915 +(((
710 710  **AT+DATAUP=0**
711 711  )))
918 +)))
712 712  
713 713  (% class="box infomessage" %)
714 714  (((
922 +(((
715 715  **AT+DATAUP=1**
716 716  )))
925 +)))
717 717  
927 +(((
928 +
929 +)))
718 718  
719 -* **Downlink Payload:**
931 +* (((
932 +**Downlink Payload:**
933 +)))
720 720  
935 +(((
721 721  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
937 +)))
722 722  
939 +(((
723 723  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
941 +)))
724 724  
725 725  
726 726  
945 +
727 727  ==== **Manually trigger an Uplink** ====
728 728  
948 +(((
729 729  Ask device to send an uplink immediately.
950 +)))
730 730  
731 -* **AT Command:**
952 +* (((
953 +**AT Command:**
954 +)))
732 732  
956 +(((
733 733  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
958 +)))
734 734  
960 +(((
961 +
962 +)))
735 735  
736 -* **Downlink Payload:**
964 +* (((
965 +**Downlink Payload:**
966 +)))
737 737  
968 +(((
738 738  **0x08 FF**, RS485-LN will immediately send an uplink.
970 +)))
739 739  
740 740  
741 741  
974 +
742 742  ==== **Clear RS485 Command** ====
743 743  
977 +(((
744 744  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
979 +)))
745 745  
746 -* **AT Command:**
981 +* (((
982 +**AT Command:**
983 +)))
747 747  
985 +(((
748 748  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
987 +)))
749 749  
989 +(((
750 750  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
991 +)))
751 751  
993 +(((
752 752  Example screen shot after clear all RS485 commands. 
995 +)))
753 753  
997 +(((
998 +
999 +)))
754 754  
1001 +(((
755 755  The uplink screen shot is:
1003 +)))
756 756  
757 757  [[image:1654160691922-496.png]]
758 758  
759 759  
760 -* **Downlink Payload:**
1008 +* (((
1009 +**Downlink Payload:**
1010 +)))
761 761  
1012 +(((
762 762  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1014 +)))
763 763  
764 764  
765 765  
1018 +
766 766  ==== **Set Serial Communication Parameters** ====
767 767  
1021 +(((
768 768  Set the Rs485 serial communication parameters:
1023 +)))
769 769  
770 -* **AT Command:**
1025 +* (((
1026 +**AT Command:**
1027 +)))
771 771  
1029 +(((
772 772  Set Baud Rate:
1031 +)))
773 773  
774 774  (% class="box infomessage" %)
775 775  (((
1035 +(((
776 776  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
777 777  )))
1038 +)))
778 778  
1040 +(((
779 779  Set UART Parity
1042 +)))
780 780  
781 781  (% class="box infomessage" %)
782 782  (((
1046 +(((
783 783  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
784 784  )))
1049 +)))
785 785  
1051 +(((
786 786  Set STOPBIT
1053 +)))
787 787  
788 788  (% class="box infomessage" %)
789 789  (((
1057 +(((
790 790  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
791 791  )))
1060 +)))
792 792  
1062 +(((
1063 +
1064 +)))
793 793  
794 -* **Downlink Payload:**
1066 +* (((
1067 +**Downlink Payload:**
1068 +)))
795 795  
1070 +(((
796 796  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1072 +)))
797 797  
1074 +(((
798 798  **Example:**
1076 +)))
799 799  
800 -* A7 01 00 60   same as AT+BAUDR=9600
801 -* A7 01 04 80  same as AT+BAUDR=115200
1078 +* (((
1079 +A7 01 00 60   same as AT+BAUDR=9600
1080 +)))
1081 +* (((
1082 +A7 01 04 80  same as AT+BAUDR=115200
1083 +)))
802 802  
1085 +(((
803 803  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1087 +)))
804 804  
1089 +(((
805 805  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1091 +)))
806 806  
807 807  
1094 +
1095 +
808 808  == 3.6 Listening mode for RS485 network ==
809 809  
1098 +(((
810 810  This feature support since firmware v1.4
1100 +)))
811 811  
1102 +(((
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.
1104 +)))
813 813  
814 814  [[image:image-20220602171200-8.png||height="567" width="1007"]]
815 815  
1108 +(((
816 816  To enable the listening mode, use can run the command AT+RXMODE.
1110 +)))
817 817  
1112 +(((
1113 +
1114 +)))
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)
1116 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1117 +|=(% style="width: 100px;" %)(((
1118 +**Command example**
1119 +)))|=(% style="width: 400px;" %)(((
1120 +**Function**
1121 +)))
1122 +|(% style="width:100px" %)(((
1123 +AT+RXMODE=1,10
1124 +)))|(% style="width:400px" %)(((
1125 +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.
1126 +)))
1127 +|(% style="width:100px" %)(((
1128 +AT+RXMODE=2,500
1129 +)))|(% style="width:400px" %)(((
1130 +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
1131 +)))
1132 +|(% style="width:100px" %)(((
1133 +AT+RXMODE=0,0
1134 +)))|(% style="width:400px" %)(((
1135 +Disable listening mode. This is the default settings.
1136 +)))
1137 +|(% style="width:100px" %)(((
1138 +
1139 +)))|(% style="width:400px" %)(((
1140 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1141 +)))
825 825  
1143 +(((
826 826  **Downlink Command:**
1145 +)))
827 827  
1147 +(((
828 828  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1149 +)))
829 829  
1151 +(((
1152 +
1153 +)))
830 830  
1155 +(((
831 831  **Example**:
1157 +)))
832 832  
1159 +(((
833 833  The RS485-LN is set to AT+RXMODE=2,1000
1161 +)))
834 834  
1163 +(((
835 835  There is a two Modbus commands in the RS485 network as below:
1165 +)))
836 836  
1167 +(((
837 837  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1169 +)))
838 838  
1171 +(((
839 839  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1173 +)))
840 840  
1175 +(((
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
1177 +)))
842 842  
1179 +(((
843 843  [[image:image-20220602171200-9.png]]
1181 +)))
844 844  
1183 +(((
1184 +
1185 +)))
845 845  
1187 +(((
1188 +(((
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.
1190 +)))
1191 +)))
847 847  
848 848  
849 849  == 3.7 Buttons ==
850 850  
851 851  
852 -(% border="1" style="background-color:#f7faff; width:500px" %)
853 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
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 -|**RST**|(% style="width:1420px" %)Reboot RS485
856 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1197 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1198 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1199 +|(% 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**
1200 +|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1201 +|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
857 857  
858 -
859 859  == 3.8 LEDs ==
860 860  
861 -(% border="1" style="background-color:#f7faff; width:500px" %)
862 -|=**LEDs**|=**Feature**
1205 +
1206 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1207 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
863 863  |**PWR**|Always on if there is power
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.
1209 +|**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 -
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]]
... ... @@ -873,19 +873,26 @@
873 873  
874 874  == 5.1 Access AT Command ==
875 875  
1220 +(((
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.
1222 +)))
877 877  
878 878  [[image:1654162355560-817.png]]
879 879  
880 880  
1227 +(((
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:
1229 +)))
882 882  
883 883  [[image:1654162368066-342.png]]
884 884  
885 885  
1234 +(((
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/]]
1236 +)))
887 887  
888 888  
1239 +
889 889  == 5.2 Common AT Command Sequence ==
890 890  
891 891  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -908,7 +908,9 @@
908 908  )))
909 909  
910 910  
1262 +(((
911 911  If device already joined network:
1264 +)))
912 912  
913 913  (% class="box infomessage" %)
914 914  (((
... ... @@ -947,10 +947,12 @@
947 947  
948 948  (% style="color:red" %)**Note:**
949 949  
1303 +(((
950 950  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
951 951  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
952 952  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.
953 953  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 +)))
954 954  
955 955  [[image:1654162478620-421.png]]
956 956  
... ... @@ -959,25 +959,45 @@
959 959  
960 960  == 6.1 How to upgrade the image? ==
961 961  
1317 +(((
962 962  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1319 +)))
963 963  
964 -* Support new features
965 -* For bug fix
966 -* Change LoRaWAN bands.
1321 +* (((
1322 +Support new features
1323 +)))
1324 +* (((
1325 +For bug fix
1326 +)))
1327 +* (((
1328 +Change LoRaWAN bands.
1329 +)))
967 967  
1331 +(((
968 968  Below shows the hardware connection for how to upload an image to RS485-LN:
1333 +)))
969 969  
970 970  [[image:1654162535040-878.png]]
971 971  
1337 +(((
972 972  **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 +)))
973 973  
1341 +(((
974 974  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1343 +)))
975 975  
1345 +(((
976 976  **Step3: **Open flashloader; choose the correct COM port to update.
1347 +)))
977 977  
978 978  (((
1350 +(((
1351 +(((
979 979  (% 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.
980 980  )))
1354 +)))
1355 +)))
981 981  
982 982  
983 983  [[image:image-20220602175818-12.png]]
... ... @@ -1040,8 +1040,6 @@
1040 1040  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1041 1041  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1042 1042  
1043 -
1044 -
1045 1045  = 9.Packing Info =
1046 1046  
1047 1047  
... ... @@ -1058,8 +1058,6 @@
1058 1058  * Package Size / pcs : 14.5 x 8 x 5 cm
1059 1059  * Weight / pcs : 170g
1060 1060  
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]].
1487 +* (((
1488 +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.
1489 +)))
1490 +* (((
1491 +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]].
1492 +)))
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