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<
From version < 58.9 >
edited by Xiaoling
on 2022/06/06 11:22
To version < 47.1 >
edited by Xiaoling
on 2022/06/02 17:12
>
Change comment: Uploaded new attachment "image-20220602171200-9.png", version {1}

Summary

Details

Page properties
Content
... ... @@ -6,18 +6,12 @@
6 6  **RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 -
10 -
11 11  **Table of Contents:**
12 12  
13 -{{toc/}}
14 14  
15 15  
16 16  
17 17  
18 -
19 -
20 -
21 21  = 1.Introduction =
22 22  
23 23  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
... ... @@ -24,33 +24,23 @@
24 24  
25 25  (((
26 26  (((
27 -(((
28 28  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.
29 29  )))
30 -)))
31 31  
32 32  (((
33 -(((
34 34  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.
35 35  )))
36 -)))
37 37  
38 38  (((
39 -(((
40 40  (% 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.
41 41  )))
42 -)))
43 43  
44 44  (((
45 -(((
46 46  (% 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 -)))
48 48  
49 -(((
50 50  (% 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]]
51 51  )))
52 52  )))
53 -)))
54 54  
55 55  [[image:1653267211009-519.png||height="419" width="724"]]
56 56  
... ... @@ -90,7 +90,7 @@
90 90  * Preamble detection.
91 91  * 127 dB Dynamic Range RSSI.
92 92  * Automatic RF Sense and CAD with ultra-fast AFC.
93 -* Packet engine up to 256 bytes with CRC
77 +* Packet engine up to 256 bytes with CRC.
94 94  
95 95  == 1.3 Features ==
96 96  
... ... @@ -103,7 +103,6 @@
103 103  * Support Modbus protocol
104 104  * Support Interrupt uplink (Since hardware version v1.2)
105 105  
106 -
107 107  == 1.4 Applications ==
108 108  
109 109  * Smart Buildings & Home Automation
... ... @@ -113,7 +113,6 @@
113 113  * Smart Cities
114 114  * Smart Factory
115 115  
116 -
117 117  == 1.5 Firmware Change log ==
118 118  
119 119  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -123,13 +123,9 @@
123 123  
124 124  (((
125 125  (((
126 -(((
127 127  v1.2: Add External Interrupt Pin.
128 -)))
129 129  
130 -(((
131 131  v1.0: Release
132 -)))
133 133  
134 134  
135 135  )))
... ... @@ -157,9 +157,7 @@
157 157  == 3.1 How it works? ==
158 158  
159 159  (((
160 -(((
161 161  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 -)))
163 163  
164 164  
165 165  )))
... ... @@ -183,7 +183,7 @@
183 183  [[image:1653268227651-549.png||height="592" width="720"]]
184 184  
185 185  (((
186 -The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
162 +The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3:
187 187  )))
188 188  
189 189  (((
... ... @@ -235,7 +235,7 @@
235 235  
236 236  (((
237 237  (((
238 -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.
214 +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>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
239 239  )))
240 240  
241 241  (((
... ... @@ -249,19 +249,19 @@
249 249  
250 250  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:
251 251  
252 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
253 -|=(% style="width: 110px;" %)(((
228 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
229 +|(% style="width:128px" %)(((
254 254  **AT Commands**
255 -)))|=(% style="width: 190px;" %)(((
231 +)))|(% style="width:305px" %)(((
256 256  **Description**
257 -)))|=(% style="width: 190px;" %)(((
233 +)))|(% style="width:346px" %)(((
258 258  **Example**
259 259  )))
260 -|(% style="width:110px" %)(((
236 +|(% style="width:128px" %)(((
261 261  AT+BAUDR
262 -)))|(% style="width:190px" %)(((
238 +)))|(% style="width:305px" %)(((
263 263  Set the baud rate (for RS485 connection). Default Value is: 9600.
264 -)))|(% style="width:190px" %)(((
240 +)))|(% style="width:346px" %)(((
265 265  (((
266 266  AT+BAUDR=9600
267 267  )))
... ... @@ -270,11 +270,11 @@
270 270  Options: (1200,2400,4800,14400,19200,115200)
271 271  )))
272 272  )))
273 -|(% style="width:110px" %)(((
249 +|(% style="width:128px" %)(((
274 274  AT+PARITY
275 -)))|(% style="width:190px" %)(((
251 +)))|(% style="width:305px" %)(((
276 276  Set UART parity (for RS485 connection)
277 -)))|(% style="width:190px" %)(((
253 +)))|(% style="width:346px" %)(((
278 278  (((
279 279  AT+PARITY=0
280 280  )))
... ... @@ -283,9 +283,9 @@
283 283  Option: 0: no parity, 1: odd parity, 2: even parity
284 284  )))
285 285  )))
286 -|(% style="width:110px" %)(((
262 +|(% style="width:128px" %)(((
287 287  AT+STOPBIT
288 -)))|(% style="width:190px" %)(((
264 +)))|(% style="width:305px" %)(((
289 289  (((
290 290  Set serial stopbit (for RS485 connection)
291 291  )))
... ... @@ -293,7 +293,7 @@
293 293  (((
294 294  
295 295  )))
296 -)))|(% style="width:190px" %)(((
272 +)))|(% style="width:346px" %)(((
297 297  (((
298 298  AT+STOPBIT=0 for 1bit
299 299  )))
... ... @@ -307,8 +307,6 @@
307 307  )))
308 308  )))
309 309  
310 -
311 -
312 312  === 3.3.2 Configure sensors ===
313 313  
314 314  (((
... ... @@ -317,18 +317,16 @@
317 317  )))
318 318  )))
319 319  
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" %)(((
294 +(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
295 +|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
296 +|AT+CFGDEV|(% style="width:418px" %)(((
323 323  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
324 324  
325 325  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
326 326  
327 327  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
328 -)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
302 +)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
329 329  
330 -
331 -
332 332  === 3.3.3 Configure read commands for each sampling ===
333 333  
334 334  (((
... ... @@ -374,8 +374,8 @@
374 374  
375 375  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
376 376  
377 -(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
378 -|(% style="width:510px" %)(((
349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350 +|(% style="width:722px" %)(((
379 379  **AT+DATACUTx=a,b,c**
380 380  
381 381  * **a: length for the return of AT+COMMAND**
... ... @@ -444,7 +444,6 @@
444 444  
445 445  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
446 446  
447 -
448 448  1. PAYVER: Defined by AT+PAYVER
449 449  1. PAYLOAD COUNT: Total how many uplinks of this sampling.
450 450  1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
... ... @@ -501,35 +501,33 @@
501 501  
502 502  == 3.4 Uplink Payload ==
503 503  
475 +(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
476 +|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
477 +|Value|(% style="width:120px" %)(((
478 +Battery(mV)
504 504  
505 -[[image:image-20220606110929-1.png]]
480 +&
506 506  
482 +Interrupt _Flag
483 +)))|(% style="width:116px" %)(((
484 +PAYLOAD_VER
485 +
486 +
487 +)))|(% 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.
488 +
507 507  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
508 508  
509 509  
510 510  == 3.5 Configure RS485-BL via AT or Downlink ==
511 511  
512 -(((
513 513  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
514 -)))
515 515  
516 -(((
517 517  There are two kinds of Commands:
518 -)))
519 519  
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 -)))
498 +* (% 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: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
523 523  
524 -* (((
525 -(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
526 -)))
500 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
527 527  
528 -(((
529 -
530 -)))
531 -
532 -
533 533  === 3.5.1 Common Commands ===
534 534  
535 535  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]]
... ... @@ -546,284 +546,144 @@
546 546  
547 547  === 3.5.3 Sensor related commands ===
548 548  
518 +==== ====
549 549  
550 -
551 -
552 552  ==== **RS485 Debug Command** ====
553 553  
554 -(((
555 555  This command is used to configure the RS485 devices; they won’t be used during sampling.
556 -)))
557 557  
558 -* (((
559 -**AT Command**
560 -)))
524 +* **AT Command**
561 561  
562 562  (% class="box infomessage" %)
563 563  (((
564 -(((
565 565  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
566 566  )))
567 -)))
568 568  
569 -(((
570 570  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
571 -)))
572 572  
573 -* (((
574 -**Downlink Payload**
575 -)))
533 +* **Downlink Payload**
576 576  
577 -(((
578 578  Format: A8 MM NN XX XX XX XX YY
579 -)))
580 580  
581 -(((
582 582  Where:
583 -)))
584 584  
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 -)))
539 +* MM: 1: add CRC-16/MODBUS ; 0: no CRC
540 +* NN: The length of RS485 command
541 +* XX XX XX XX: RS485 command total NN bytes
542 +* YY: How many bytes will be uplink from the return of this RS485 command,
543 +** if YY=0, RS485-LN will execute the downlink command without uplink;
544 +** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
545 +** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
598 598  
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 -(((
611 611  **Example 1** ~-~-> Configure without ask for uplink (YY=0)
612 -)))
613 613  
614 -(((
615 615  To connect a Modbus Alarm with below commands.
616 -)))
617 617  
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 -)))
551 +* 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.
621 621  
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 -)))
553 +* 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.
625 625  
626 -(((
627 627  So if user want to use downlink command to control to RS485 Alarm, he can use:
628 -)))
629 629  
630 -(((
631 631  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
632 -)))
633 633  
634 -(((
635 635  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
636 -)))
637 637  
638 -(((
639 639  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 -)))
641 641  
642 -(((
643 -
644 -)))
645 645  
646 -(((
647 647  **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
648 -)))
649 649  
650 -(((
651 651  User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
652 -)))
653 653  
654 -(((
655 -
656 -)))
657 657  
658 -(((
659 659  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 -)))
661 661  
662 -(((
663 663   **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
664 -)))
665 665  
666 -(((
667 667   [[image:1654159460680-153.png]]
668 -)))
669 669  
670 670  
671 671  
672 -
673 673  ==== **Set Payload version** ====
674 674  
675 -(((
676 676  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 -)))
678 678  
679 -* (((
680 -**AT Command:**
681 -)))
581 +* **AT Command:**
682 682  
683 683  (% class="box infomessage" %)
684 684  (((
685 -(((
686 686  **AT+PAYVER: Set PAYVER field = 1**
687 687  )))
688 -)))
689 689  
690 -* (((
691 -**Downlink Payload:**
692 -)))
588 +* **Downlink Payload:**
693 693  
694 -(((
695 695  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
696 -)))
697 697  
698 -(((
699 699  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
700 -)))
701 701  
702 702  
703 703  
704 -
705 705  ==== **Set RS485 Sampling Commands** ====
706 706  
707 -(((
708 708  AT+COMMANDx or AT+DATACUTx
709 -)))
710 710  
711 -(((
712 712  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 -)))
714 714  
715 -(((
716 -
717 -)))
718 718  
719 -* (((
720 -**AT Command:**
721 -)))
603 +* **AT Command:**
722 722  
723 723  (% class="box infomessage" %)
724 724  (((
725 -(((
726 726  **AT+COMMANDx: Configure RS485 read command to sensor.**
727 727  )))
728 -)))
729 729  
730 730  (% class="box infomessage" %)
731 731  (((
732 -(((
733 733  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
734 734  )))
735 -)))
736 736  
737 -(((
738 -
739 -)))
740 740  
741 -* (((
742 -**Downlink Payload:**
743 -)))
616 +* **Downlink Payload:**
744 744  
745 -(((
746 746  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
747 -)))
748 748  
749 -(((
750 750  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
751 -)))
752 752  
753 -(((
754 754  Format: AF MM NN LL XX XX XX XX YY
755 -)))
756 756  
757 -(((
758 758  Where:
759 -)))
760 760  
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 -)))
626 +* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
627 +* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
628 +* LL:  The length of AT+COMMAND or AT+DATACUT command
629 +* XX XX XX XX: AT+COMMAND or AT+DATACUT command
630 +* 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.
776 776  
777 -(((
778 778  **Example:**
779 -)))
780 780  
781 -(((
782 782  (% 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 -)))
784 784  
785 -(((
786 786  (% 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 -)))
788 788  
789 -(((
790 790  (% 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 -)))
792 792  
793 793  
794 794  
795 -
796 796  ==== **Fast command to handle MODBUS device** ====
797 797  
798 -(((
799 799  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 -)))
801 801  
802 -(((
803 803  This command is valid since v1.3 firmware version
804 -)))
805 805  
806 -(((
807 807  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 -)))
809 809  
810 -(((
811 -
812 -)))
813 813  
814 -(((
815 815  **Example:**
816 -)))
817 817  
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 -)))
653 +* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
654 +* 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.
655 +* 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.
827 827  
828 828  [[image:image-20220602165351-6.png]]
829 829  
... ... @@ -894,7 +894,7 @@
894 894  
895 895  * **AT Command:**
896 896  
897 -No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
726 +No AT Command for this, user can press the [[ACT button>>path:#Button]] for 1 second for the same.
898 898  
899 899  
900 900  * **Downlink Payload:**
... ... @@ -902,6 +902,7 @@
902 902  **0x08 FF**, RS485-LN will immediately send an uplink.
903 903  
904 904  
734 +==== ====
905 905  
906 906  ==== **Clear RS485 Command** ====
907 907  
... ... @@ -913,12 +913,12 @@
913 913  
914 914  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
915 915  
916 -Example screen shot after clear all RS485 commands. 
746 +Example screen shot after clear all RS485 commands.
917 917  
918 918  
919 919  The uplink screen shot is:
920 920  
921 -[[image:1654160691922-496.png]]
751 +[[image:1654160691922-496.png]][[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
922 922  
923 923  
924 924  * **Downlink Payload:**
... ... @@ -969,313 +969,5 @@
969 969  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
970 970  
971 971  
972 -== 3.6 Listening mode for RS485 network ==
973 973  
974 -This feature support since firmware v1.4
975 -
976 -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.
977 -
978 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
979 -
980 -To enable the listening mode, use can run the command AT+RXMODE.
981 -
982 -
983 -(% border="1" style="background-color:#ffffcc; width:500px" %)
984 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
985 -|(% 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.
986 -|(% 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
987 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
988 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
989 -
990 -**Downlink Command:**
991 -
992 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
993 -
994 -
995 -**Example**:
996 -
997 -The RS485-LN is set to AT+RXMODE=2,1000
998 -
999 -There is a two Modbus commands in the RS485 network as below:
1000 -
1001 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1002 -
1003 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1004 -
1005 -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
1006 -
1007 -[[image:image-20220602171200-9.png]]
1008 -
1009 -
1010 -(% 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.
1011 -
1012 -
1013 -== 3.7 Buttons ==
1014 -
1015 -
1016 -(% border="1" style="background-color:#f7faff; width:500px" %)
1017 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1018 -|**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**
1019 -|**RST**|(% style="width:1420px" %)Reboot RS485
1020 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1021 -
1022 -== 3.8 LEDs ==
1023 -
1024 -(% border="1" style="background-color:#f7faff; width:500px" %)
1025 -|=**LEDs**|=**Feature**
1026 -|**PWR**|Always on if there is power
1027 -|**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.
1028 -
1029 -= 4. Case Study =
1030 -
1031 -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]]
1032 -
1033 -
1034 -= 5. Use AT Command =
1035 -
1036 -== 5.1 Access AT Command ==
1037 -
1038 -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.
1039 -
1040 -[[image:1654162355560-817.png]]
1041 -
1042 -
1043 -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:
1044 -
1045 -[[image:1654162368066-342.png]]
1046 -
1047 -
1048 -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/]]
1049 -
1050 -
1051 -== 5.2 Common AT Command Sequence ==
1052 -
1053 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1054 -
1055 -If device has not joined network yet:
1056 -
1057 -(% class="box infomessage" %)
1058 -(((
1059 -**AT+FDR**
1060 -)))
1061 -
1062 -(% class="box infomessage" %)
1063 -(((
1064 -**AT+NJM=0**
1065 -)))
1066 -
1067 -(% class="box infomessage" %)
1068 -(((
1069 -**ATZ**
1070 -)))
1071 -
1072 -
1073 -If device already joined network:
1074 -
1075 -(% class="box infomessage" %)
1076 -(((
1077 -**AT+NJM=0**
1078 -)))
1079 -
1080 -(% class="box infomessage" %)
1081 -(((
1082 -**ATZ**
1083 -)))
1084 -
1085 -
1086 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1087 -
1088 -
1089 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1090 -
1091 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1092 -
1093 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
1094 -
1095 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1096 -
1097 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1098 -
1099 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
1100 -
1101 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1102 -
1103 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1104 -
1105 -(% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1106 -
1107 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1108 -
1109 -
1110 -(% style="color:red" %)**Note:**
1111 -
1112 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1113 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1114 -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.
1115 -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
1116 -
1117 -[[image:1654162478620-421.png]]
1118 -
1119 -
1120 -= 6. FAQ =
1121 -
1122 -== 6.1 How to upgrade the image? ==
1123 -
1124 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1125 -
1126 -* Support new features
1127 -* For bug fix
1128 -* Change LoRaWAN bands.
1129 -
1130 -Below shows the hardware connection for how to upload an image to RS485-LN:
1131 -
1132 -[[image:1654162535040-878.png]]
1133 -
1134 -**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]].
1135 -
1136 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1137 -
1138 -**Step3: **Open flashloader; choose the correct COM port to update.
1139 -
1140 -(((
1141 -(% 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.
1142 -)))
1143 -
1144 -
1145 -[[image:image-20220602175818-12.png]]
1146 -
1147 -
1148 -[[image:image-20220602175848-13.png]]
1149 -
1150 -
1151 -[[image:image-20220602175912-14.png]]
1152 -
1153 -
1154 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1155 -
1156 -[[image:image-20220602175638-10.png]]
1157 -
1158 -
1159 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
1160 -
1161 -User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1162 -
1163 -
1164 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1165 -
1166 -The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1167 -
1168 -
1169 -== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1170 -
1171 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1172 -
1173 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1174 -
1175 -
1176 -= 7. Trouble Shooting =
1177 -
1178 -== 7.1 Downlink doesn’t work, how to solve it? ==
1179 -
1180 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1181 -
1182 -
1183 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1184 -
1185 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1186 -
1187 -
1188 -= 8. Order Info =
1189 -
1190 -(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1191 -
1192 -(% style="color:blue" %)**XXX:**
1193 -
1194 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1195 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1196 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1197 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1198 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1199 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1200 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1201 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1202 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1203 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1204 -
1205 -
1206 -= 9.Packing Info =
1207 -
1208 -
1209 -**Package Includes**:
1210 -
1211 -* RS485-LN x 1
1212 -* Stick Antenna for LoRa RF part x 1
1213 -* Program cable x 1
1214 -
1215 -**Dimension and weight**:
1216 -
1217 -* Device Size: 13.5 x 7 x 3 cm
1218 -* Device Weight: 105g
1219 -* Package Size / pcs : 14.5 x 8 x 5 cm
1220 -* Weight / pcs : 170g
1221 -
1222 -
1223 -= 10. FCC Caution for RS485LN-US915 =
1224 -
1225 -(((
1226 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1227 -)))
1228 -
1229 -(((
1230 -This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
1231 -)))
1232 -
1233 -(((
1234 -
1235 -)))
1236 -
1237 -(((
1238 -**IMPORTANT NOTE:**
1239 -)))
1240 -
1241 -(((
1242 -**Note: **This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
1243 -)))
1244 -
1245 -(((
1246 -—Reorient or relocate the receiving antenna.
1247 -)))
1248 -
1249 -(((
1250 -—Increase the separation between the equipment and receiver.
1251 -)))
1252 -
1253 -(((
1254 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1255 -)))
1256 -
1257 -(((
1258 -—Consult the dealer or an experienced radio/TV technician for help.
1259 -)))
1260 -
1261 -(((
1262 -
1263 -)))
1264 -
1265 -(((
1266 -**FCC Radiation Exposure Statement:**
1267 -)))
1268 -
1269 -(((
1270 -This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
1271 -)))
1272 -
1273 -
1274 -= 11. Support =
1275 -
1276 -* (((
1277 -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.
1278 -)))
1279 -* (((
1280 -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]].
1281 -)))
803 +==== ====
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