Last modified by Xiaoling on 2025/04/23 15:56
<
From version < 60.4 >
edited by Xiaoling
on 2022/06/14 11:06
To version < 40.1 >
edited by Xiaoling
on 2022/06/02 16:33
>
Change comment: Uploaded new attachment "image-20220602163333-5.png", version {1}

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -RS485-LN – RS485 to LoRaWAN Converter User Manual
1 +RS485-LN – RS485 to LoRaWAN Converter
Content
... ... @@ -3,20 +3,15 @@
3 3  
4 4  
5 5  
6 +**RS485-LN – RS485 to LoRaWAN Converter User Manual**
6 6  
7 7  
8 -
9 -
10 10  **Table of Contents:**
11 11  
12 -{{toc/}}
13 13  
14 14  
15 15  
16 16  
17 -
18 -
19 -
20 20  = 1.Introduction =
21 21  
22 22  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
... ... @@ -23,37 +23,23 @@
23 23  
24 24  (((
25 25  (((
26 -(((
27 -
28 -
29 29  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.
30 30  )))
31 -)))
32 32  
33 33  (((
34 -(((
35 35  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.
36 36  )))
37 -)))
38 38  
39 39  (((
40 -(((
41 41  (% 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.
42 42  )))
43 -)))
44 44  
45 45  (((
46 -(((
47 47  (% 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.
48 -)))
49 49  
50 -(((
51 51  (% 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]]
52 -
53 -
54 54  )))
55 55  )))
56 -)))
57 57  
58 58  [[image:1653267211009-519.png||height="419" width="724"]]
59 59  
... ... @@ -69,15 +69,11 @@
69 69  ** Idle: 32mA@12v
70 70  ** 20dB Transmit: 65mA@12v
71 71  
72 -
73 -
74 74  **Interface for Model:**
75 75  
76 76  * RS485
77 77  * Power Input 7~~ 24V DC. 
78 78  
79 -
80 -
81 81  **LoRa Spec:**
82 82  
83 83  * Frequency Range:
... ... @@ -97,11 +97,8 @@
97 97  * Preamble detection.
98 98  * 127 dB Dynamic Range RSSI.
99 99  * Automatic RF Sense and CAD with ultra-fast AFC.
100 -* Packet engine up to 256 bytes with CRC
77 +* Packet engine up to 256 bytes with CRC.
101 101  
102 -
103 -
104 -
105 105  == 1.3 Features ==
106 106  
107 107  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -113,9 +113,6 @@
113 113  * Support Modbus protocol
114 114  * Support Interrupt uplink (Since hardware version v1.2)
115 115  
116 -
117 -
118 -
119 119  == 1.4 Applications ==
120 120  
121 121  * Smart Buildings & Home Automation
... ... @@ -125,9 +125,6 @@
125 125  * Smart Cities
126 126  * Smart Factory
127 127  
128 -
129 -
130 -
131 131  == 1.5 Firmware Change log ==
132 132  
133 133  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -137,13 +137,9 @@
137 137  
138 138  (((
139 139  (((
140 -(((
141 141  v1.2: Add External Interrupt Pin.
142 -)))
143 143  
144 -(((
145 145  v1.0: Release
146 -)))
147 147  
148 148  
149 149  )))
... ... @@ -171,9 +171,7 @@
171 171  == 3.1 How it works? ==
172 172  
173 173  (((
174 -(((
175 175  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.
176 -)))
177 177  
178 178  
179 179  )))
... ... @@ -197,7 +197,7 @@
197 197  [[image:1653268227651-549.png||height="592" width="720"]]
198 198  
199 199  (((
200 -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:
201 201  )))
202 202  
203 203  (((
... ... @@ -249,15 +249,11 @@
249 249  
250 250  (((
251 251  (((
252 -(((
253 -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.
254 254  )))
255 -)))
256 256  
257 257  (((
258 -(((
259 259  (% 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
260 -)))
261 261  
262 262  
263 263  )))
... ... @@ -267,19 +267,19 @@
267 267  
268 268  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:
269 269  
270 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
271 -|=(% style="width: 110px;" %)(((
228 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
229 +|(% style="width:128px" %)(((
272 272  **AT Commands**
273 -)))|=(% style="width: 190px;" %)(((
231 +)))|(% style="width:305px" %)(((
274 274  **Description**
275 -)))|=(% style="width: 190px;" %)(((
233 +)))|(% style="width:346px" %)(((
276 276  **Example**
277 277  )))
278 -|(% style="width:110px" %)(((
236 +|(% style="width:128px" %)(((
279 279  AT+BAUDR
280 -)))|(% style="width:190px" %)(((
238 +)))|(% style="width:305px" %)(((
281 281  Set the baud rate (for RS485 connection). Default Value is: 9600.
282 -)))|(% style="width:190px" %)(((
240 +)))|(% style="width:346px" %)(((
283 283  (((
284 284  AT+BAUDR=9600
285 285  )))
... ... @@ -288,11 +288,11 @@
288 288  Options: (1200,2400,4800,14400,19200,115200)
289 289  )))
290 290  )))
291 -|(% style="width:110px" %)(((
249 +|(% style="width:128px" %)(((
292 292  AT+PARITY
293 -)))|(% style="width:190px" %)(((
251 +)))|(% style="width:305px" %)(((
294 294  Set UART parity (for RS485 connection)
295 -)))|(% style="width:190px" %)(((
253 +)))|(% style="width:346px" %)(((
296 296  (((
297 297  AT+PARITY=0
298 298  )))
... ... @@ -301,9 +301,9 @@
301 301  Option: 0: no parity, 1: odd parity, 2: even parity
302 302  )))
303 303  )))
304 -|(% style="width:110px" %)(((
262 +|(% style="width:128px" %)(((
305 305  AT+STOPBIT
306 -)))|(% style="width:190px" %)(((
264 +)))|(% style="width:305px" %)(((
307 307  (((
308 308  Set serial stopbit (for RS485 connection)
309 309  )))
... ... @@ -311,7 +311,7 @@
311 311  (((
312 312  
313 313  )))
314 -)))|(% style="width:190px" %)(((
272 +)))|(% style="width:346px" %)(((
315 315  (((
316 316  AT+STOPBIT=0 for 1bit
317 317  )))
... ... @@ -333,21 +333,15 @@
333 333  )))
334 334  )))
335 335  
336 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
337 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
338 -|AT+CFGDEV|(% style="width:110px" %)(((
339 -(((
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" %)(((
340 340  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
341 -)))
342 342  
343 -(((
344 344  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
345 -)))
346 346  
347 -(((
348 348  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
349 -)))
350 -)))|(% 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
351 351  
352 352  === 3.3.3 Configure read commands for each sampling ===
353 353  
... ... @@ -394,8 +394,8 @@
394 394  
395 395  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
396 396  
397 -(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
398 -|(% style="width:510px" %)(((
349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350 +|(% style="width:722px" %)(((
399 399  **AT+DATACUTx=a,b,c**
400 400  
401 401  * **a: length for the return of AT+COMMAND**
... ... @@ -464,7 +464,6 @@
464 464  
465 465  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
466 466  
467 -
468 468  1. PAYVER: Defined by AT+PAYVER
469 469  1. PAYLOAD COUNT: Total how many uplinks of this sampling.
470 470  1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
... ... @@ -521,33 +521,33 @@
521 521  
522 522  == 3.4 Uplink Payload ==
523 523  
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)
524 524  
525 -[[image:image-20220606110929-1.png]]
480 +&
526 526  
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 +
527 527  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
528 528  
529 529  
530 530  == 3.5 Configure RS485-BL via AT or Downlink ==
531 531  
532 -(((
533 533  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
534 -)))
535 535  
536 -(((
537 537  There are two kinds of Commands:
538 -)))
539 539  
540 -* (((
541 -(% 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]]
542 -)))
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]]
543 543  
544 -* (((
545 -(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
546 -)))
500 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
547 547  
548 -(((
549 -
550 -)))
551 551  
552 552  
553 553  === 3.5.1 Common Commands ===
... ... @@ -555,950 +555,570 @@
555 555  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]]
556 556  
557 557  
558 -=== 3.5.2 Sensor related commands ===
509 +=== 3.5.2 Sensor related commands: ===
559 559  
560 -Response feature is added to the server's downlink, a special package with a FPort of 200 will be uploaded immediately after receiving the data sent by the server.
511 +==== Choose Device Type (RS485 or TTL) ====
561 561  
562 -[[image:image-20220602163333-5.png||height="263" width="1160"]]
513 +RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
563 563  
564 -The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable)
515 +* AT Command
565 565  
517 +**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
566 566  
567 -=== 3.5.3 Sensor related commands ===
519 +**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
568 568  
569 569  
522 +* Downlink Payload
570 570  
524 +**0A aa**     à same as AT+MOD=aa
571 571  
572 -==== **RS485 Debug Command** ====
573 573  
574 -(((
575 -This command is used to configure the RS485 devices; they won’t be used during sampling.
576 -)))
577 577  
578 -* (((
579 -**AT Command**
580 -)))
528 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
581 581  
582 -(% class="box infomessage" %)
583 -(((
584 -(((
585 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
586 -)))
587 -)))
530 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
588 588  
589 -(((
590 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
591 -)))
532 +* AT Command
592 592  
593 -* (((
594 -**Downlink Payload**
595 -)))
534 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
596 596  
597 -(((
536 +m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
537 +
538 +
539 +
540 +* Downlink Payload
541 +
598 598  Format: A8 MM NN XX XX XX XX YY
599 -)))
600 600  
601 -(((
602 602  Where:
603 -)))
604 604  
605 -* (((
606 -MM: 1: add CRC-16/MODBUS ; 0: no CRC
607 -)))
608 -* (((
609 -NN: The length of RS485 command
610 -)))
611 -* (((
612 -XX XX XX XX: RS485 command total NN bytes
613 -)))
614 -* (((
615 -(((
616 -YY: How many bytes will be uplink from the return of this RS485 command,
617 -)))
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, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
618 618  
619 -* (((
620 -if YY=0, RS485-LN will execute the downlink command without uplink;
621 -)))
622 -* (((
623 -if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
624 -)))
625 -* (((
626 -if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
627 -)))
628 -)))
551 +**Example 1:**
629 629  
630 -(((
631 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
632 -)))
633 -
634 -(((
635 635  To connect a Modbus Alarm with below commands.
636 -)))
637 637  
638 -* (((
639 -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.
640 -)))
555 +* 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.
641 641  
642 -* (((
643 -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.
644 -)))
557 +* 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.
645 645  
646 -(((
647 647  So if user want to use downlink command to control to RS485 Alarm, he can use:
648 -)))
649 649  
650 -(((
651 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
652 -)))
561 +**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
653 653  
654 -(((
655 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
656 -)))
563 +**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
657 657  
658 -(((
659 659  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.
660 -)))
661 661  
662 -(((
663 -
664 -)))
665 665  
666 -(((
667 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
668 -)))
568 +**Example 2:**
669 669  
670 -(((
671 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
672 -)))
570 +Check TTL Sensor return:
673 673  
674 -(((
675 -
676 -)))
572 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
677 677  
678 -(((
679 -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:
680 -)))
681 681  
682 -(((
683 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
684 -)))
685 685  
686 -(((
687 - [[image:1654159460680-153.png]]
688 -)))
689 689  
577 +==== Set Payload version ====
690 690  
691 -
692 -
693 -==== **Set Payload version** ====
694 -
695 -(((
696 696  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.
697 -)))
698 698  
699 -* (((
700 -**AT Command:**
701 -)))
581 +* AT Command:
702 702  
703 -(% class="box infomessage" %)
704 -(((
705 -(((
706 -**AT+PAYVER: Set PAYVER field = 1**
707 -)))
708 -)))
583 +AT+PAYVER: Set PAYVER field = 1
709 709  
710 -* (((
711 -**Downlink Payload:**
712 -)))
713 713  
714 -(((
715 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
716 -)))
586 +* Downlink Payload:
717 717  
718 -(((
719 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
720 -)))
588 +0xAE 01   à Set PAYVER field =  0x01
721 721  
590 +0xAE 0F   à Set PAYVER field =  0x0F
722 722  
723 723  
593 +==== Set RS485 Sampling Commands ====
724 724  
725 -==== **Set RS485 Sampling Commands** ====
595 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
726 726  
727 -(((
728 -AT+COMMANDx or AT+DATACUTx
729 -)))
597 +These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
730 730  
731 -(((
732 -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"]].
733 -)))
734 734  
735 -(((
736 -
737 -)))
600 +* AT Command:
738 738  
739 -* (((
740 -**AT Command:**
741 -)))
602 +AT+COMMANDx: Configure RS485 read command to sensor.
742 742  
743 -(% class="box infomessage" %)
744 -(((
745 -(((
746 -**AT+COMMANDx: Configure RS485 read command to sensor.**
747 -)))
748 -)))
604 +AT+DATACUTx: Configure how to handle return from RS485 devices.
749 749  
750 -(% class="box infomessage" %)
751 -(((
752 -(((
753 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
754 -)))
755 -)))
606 +AT+SEARCHx: Configure search command
756 756  
757 -(((
758 -
759 -)))
760 760  
761 -* (((
762 -**Downlink Payload:**
763 -)))
609 +* Downlink Payload:
764 764  
765 -(((
766 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
767 -)))
611 +0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
768 768  
769 -(((
770 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
771 -)))
613 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
772 772  
773 -(((
774 774  Format: AF MM NN LL XX XX XX XX YY
775 -)))
776 776  
777 -(((
778 778  Where:
779 -)))
780 780  
781 -* (((
782 -MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
783 -)))
784 -* (((
785 -NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
786 -)))
787 -* (((
788 -LL:  The length of AT+COMMAND or AT+DATACUT command
789 -)))
790 -* (((
791 -XX XX XX XX: AT+COMMAND or AT+DATACUT command
792 -)))
793 -* (((
794 -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.
795 -)))
619 +* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
620 +* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
621 +* LL: The length of AT+COMMAND or AT+DATACUT command
622 +* XX XX XX XX: AT+COMMAND or AT+DATACUT command
623 +* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
796 796  
797 -(((
798 -**Example:**
799 -)))
625 +Example:
800 800  
801 -(((
802 -(% 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
803 -)))
627 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
804 804  
805 -(((
806 -(% 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**
807 -)))
629 +**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
808 808  
809 -(((
810 -(% 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**
811 -)))
631 +**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
812 812  
813 813  
634 +0xAB downlink command can be used for set AT+SEARCHx
814 814  
636 +Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
815 815  
816 -==== **Fast command to handle MODBUS device** ====
638 +* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
639 +* AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
817 817  
818 -(((
819 -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]].
820 -)))
641 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
821 821  
822 -(((
823 -This command is valid since v1.3 firmware version
824 -)))
825 825  
826 -(((
827 -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.
828 -)))
644 +==== Fast command to handle MODBUS device ====
829 829  
830 -(((
831 -
832 -)))
646 +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]].
833 833  
834 -(((
835 -**Example:**
836 -)))
648 +This command is valid since v1.3 firmware version
837 837  
838 -* (((
839 -AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
840 -)))
841 -* (((
842 -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.
843 -)))
844 -* (((
845 -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.
846 -)))
847 847  
848 -[[image:image-20220602165351-6.png]]
651 +AT+MBFUN has only two value:
849 849  
850 -[[image:image-20220602165351-7.png]]
653 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
851 851  
655 +AT+MBFUN=1, device 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.
852 852  
657 +* AT+MBFUN=0: Disable Modbus fast reading.
853 853  
659 +Example:
854 854  
855 -==== **RS485 command timeout** ====
661 +* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
662 +* 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.
663 +* 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.
856 856  
857 -(((
858 -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.
859 -)))
665 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
860 860  
861 -(((
862 -Default value: 0, range:  0 ~~ 65 seconds
863 -)))
864 864  
865 -* (((
866 -**AT Command:**
867 -)))
668 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
868 868  
869 -(% class="box infomessage" %)
870 -(((
871 -(((
872 -**AT+CMDDLaa=hex(bb cc)*1000**
873 -)))
874 -)))
875 875  
876 -(((
877 -**Example:**
878 -)))
671 +* Downlink Commands:
879 879  
880 -(((
881 -**AT+CMDDL1=1000** to send the open time to 1000ms
882 -)))
673 +A9 aa -à Same as AT+MBFUN=aa
883 883  
884 -(((
885 -
886 -)))
887 887  
888 -* (((
889 -**Downlink Payload:**
890 -)))
676 +==== RS485 command timeout ====
891 891  
892 -(((
893 -**0x AA aa bb cc**
894 -)))
678 +Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
895 895  
896 -(((
897 -Same as: AT+CMDDLaa=hex(bb cc)*1000
898 -)))
680 +Default value: 0, range:  0 ~~ 5 seconds
899 899  
900 -(((
901 - **Example:**
902 -)))
903 903  
904 -(((
905 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
906 -)))
683 +* AT Command:
907 907  
685 +AT+CMDDLaa=hex(bb cc)
908 908  
687 +Example:
909 909  
689 +**AT+CMDDL1=1000** to send the open time to 1000ms
910 910  
911 -==== **Uplink payload mode** ====
912 912  
913 -(((
914 -Define to use one uplink or multiple uplinks for the sampling.
915 -)))
692 +* Downlink Payload:
916 916  
917 -(((
918 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
919 -)))
694 +0x AA aa bb cc
920 920  
921 -* (((
922 -**AT Command:**
923 -)))
696 +Same as: AT+CMDDLaa=hex(bb cc)
924 924  
925 -(% class="box infomessage" %)
926 -(((
927 -(((
928 -**AT+DATAUP=0**
929 -)))
930 -)))
698 + Example:
931 931  
932 -(% class="box infomessage" %)
933 -(((
934 -(((
935 -**AT+DATAUP=1**
936 -)))
937 -)))
700 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
938 938  
939 -(((
940 -
941 -)))
942 942  
943 -* (((
944 -**Downlink Payload:**
945 -)))
703 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
946 946  
947 -(((
948 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
949 -)))
705 +Define to use one uplink or multiple uplinks for the sampling.
950 950  
951 -(((
952 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
953 -)))
707 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
954 954  
709 +* AT Command:
955 955  
711 +AT+DATAUP=0
956 956  
713 +AT+DATAUP=1
957 957  
958 -==== **Manually trigger an Uplink** ====
959 959  
960 -(((
961 -Ask device to send an uplink immediately.
962 -)))
716 +* Downlink Payload:
963 963  
964 -* (((
965 -**AT Command:**
966 -)))
718 +0xAD 00   à Same as AT+DATAUP=0
967 967  
968 -(((
969 -No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
970 -)))
720 +0xAD 01   à Same as AT+DATAUP=1
971 971  
972 -(((
973 -
974 -)))
975 975  
976 -* (((
977 -**Downlink Payload:**
978 -)))
723 +==== Manually trigger an Uplink ====
979 979  
980 -(((
981 -**0x08 FF**, RS485-LN will immediately send an uplink.
982 -)))
725 +Ask device to send an uplink immediately.
983 983  
727 +* Downlink Payload:
984 984  
729 +0x08 FF, RS485-BL will immediately send an uplink.
985 985  
986 986  
987 -==== **Clear RS485 Command** ====
732 +==== Clear RS485 Command ====
988 988  
989 -(((
990 990  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
991 -)))
992 992  
993 -* (((
994 -**AT Command:**
995 -)))
996 996  
997 -(((
737 +* AT Command:
738 +
998 998  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
999 -)))
1000 1000  
1001 -(((
1002 1002  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1003 -)))
1004 1004  
1005 -(((
1006 1006  Example screen shot after clear all RS485 commands. 
1007 -)))
1008 1008  
1009 -(((
1010 -
1011 -)))
1012 1012  
1013 -(((
746 +
1014 1014  The uplink screen shot is:
1015 -)))
1016 1016  
1017 -[[image:1654160691922-496.png]]
749 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1018 1018  
1019 1019  
1020 -* (((
1021 -**Downlink Payload:**
1022 -)))
752 +* Downlink Payload:
1023 1023  
1024 -(((
1025 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
1026 -)))
754 +0x09 aa bb same as AT+CMDEAR=aa,bb
1027 1027  
1028 1028  
757 +==== Set Serial Communication Parameters ====
1029 1029  
1030 -
1031 -==== **Set Serial Communication Parameters** ====
1032 -
1033 -(((
1034 1034  Set the Rs485 serial communication parameters:
1035 -)))
1036 1036  
1037 -* (((
1038 -**AT Command:**
1039 -)))
761 +* AT Command:
1040 1040  
1041 -(((
1042 1042  Set Baud Rate:
1043 -)))
1044 1044  
1045 -(% class="box infomessage" %)
1046 -(((
1047 -(((
1048 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1049 -)))
1050 -)))
765 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1051 1051  
1052 -(((
1053 -Set UART Parity
1054 -)))
1055 1055  
1056 -(% class="box infomessage" %)
1057 -(((
1058 -(((
1059 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1060 -)))
1061 -)))
768 +Set UART parity
1062 1062  
1063 -(((
770 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
771 +
772 +
1064 1064  Set STOPBIT
1065 -)))
1066 1066  
1067 -(% class="box infomessage" %)
1068 -(((
1069 -(((
1070 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1071 -)))
1072 -)))
775 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1073 1073  
1074 -(((
1075 -
1076 -)))
1077 1077  
1078 -* (((
1079 -**Downlink Payload:**
1080 -)))
778 +* Downlink Payload:
1081 1081  
1082 -(((
1083 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1084 -)))
780 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1085 1085  
1086 -(((
1087 -**Example:**
1088 -)))
782 +Example:
1089 1089  
1090 -* (((
1091 -A7 01 00 60   same as AT+BAUDR=9600
1092 -)))
1093 -* (((
1094 -A7 01 04 80  same as AT+BAUDR=115200
1095 -)))
784 +* A7 01 00 60   same as AT+BAUDR=9600
785 +* A7 01 04 80  same as AT+BAUDR=115200
1096 1096  
1097 -(((
1098 1098  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1099 -)))
1100 1100  
1101 -(((
1102 1102  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1103 -)))
1104 1104  
1105 1105  
792 +==== Control output power duration ====
1106 1106  
794 +User can set the output power duration before each sampling.
1107 1107  
1108 -== 3.6 Listening mode for RS485 network ==
796 +* AT Command:
1109 1109  
1110 -(((
1111 -This feature support since firmware v1.4
1112 -)))
798 +Example:
1113 1113  
1114 -(((
1115 -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.
1116 -)))
800 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1117 1117  
1118 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
802 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1119 1119  
1120 -(((
1121 -To enable the listening mode, use can run the command AT+RXMODE.
1122 -)))
1123 1123  
1124 -(((
1125 -
1126 -)))
805 +* LoRaWAN Downlink Command:
1127 1127  
1128 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1129 -|=(% style="width: 100px;" %)(((
1130 -**Command example**
1131 -)))|=(% style="width: 400px;" %)(((
1132 -**Function**
1133 -)))
1134 -|(% style="width:100px" %)(((
1135 -AT+RXMODE=1,10
1136 -)))|(% style="width:400px" %)(((
1137 -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.
1138 -)))
1139 -|(% style="width:100px" %)(((
1140 -AT+RXMODE=2,500
1141 -)))|(% style="width:400px" %)(((
1142 -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
1143 -)))
1144 -|(% style="width:100px" %)(((
1145 -AT+RXMODE=0,0
1146 -)))|(% style="width:400px" %)(((
1147 -Disable listening mode. This is the default settings.
1148 -)))
1149 -|(% style="width:100px" %)(((
1150 -
1151 -)))|(% style="width:400px" %)(((
1152 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1153 -)))
807 +07 01 aa bb  Same as AT+5VT=(aa bb)
1154 1154  
1155 -(((
1156 -**Downlink Command:**
1157 -)))
809 +07 02 aa bb  Same as AT+3V3T=(aa bb)
1158 1158  
1159 -(((
1160 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1161 -)))
1162 1162  
1163 -(((
1164 -
1165 -)))
1166 1166  
1167 -(((
1168 -**Example**:
1169 -)))
1170 1170  
1171 -(((
1172 -The RS485-LN is set to AT+RXMODE=2,1000
1173 -)))
814 +1.
815 +11. Buttons
1174 1174  
1175 -(((
1176 -There is a two Modbus commands in the RS485 network as below:
1177 -)))
817 +|**Button**|**Feature**
818 +|**RST**|Reboot RS485-BL
1178 1178  
1179 -(((
1180 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1181 -)))
820 +1.
821 +11. +3V3 Output
1182 1182  
1183 -(((
1184 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1185 -)))
823 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1186 1186  
1187 -(((
1188 -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
1189 -)))
825 +The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling. 
1190 1190  
1191 -(((
1192 -[[image:image-20220602171200-9.png]]
1193 -)))
1194 1194  
1195 -(((
1196 -
1197 -)))
828 +The +3V3 output time can be controlled by AT Command.
1198 1198  
1199 -(((
1200 -(((
1201 -(% 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.
1202 -)))
1203 -)))
830 +**AT+3V3T=1000**
1204 1204  
832 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1205 1205  
1206 -== 3.7 Buttons ==
1207 1207  
835 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1208 1208  
1209 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1210 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1211 -|(% style="width:50px" %)**ACT**|(% style="width:361px" %)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**
1212 -|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1213 -|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1214 1214  
1215 -== 3.8 LEDs ==
838 +1.
839 +11. +5V Output
1216 1216  
841 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1217 1217  
1218 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1219 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1220 -|**PWR**|Always on if there is power
1221 -|**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.
843 +The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling. 
1222 1222  
1223 -= 4. Case Study =
1224 1224  
1225 -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]]
846 +The 5V output time can be controlled by AT Command.
1226 1226  
848 +**AT+5VT=1000**
1227 1227  
1228 -= 5. Use AT Command =
850 +Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1229 1229  
1230 -== 5.1 Access AT Command ==
1231 1231  
1232 -(((
1233 -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.
1234 -)))
853 +By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
1235 1235  
1236 -[[image:1654162355560-817.png]]
1237 1237  
1238 1238  
1239 -(((
1240 -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:
1241 -)))
1242 1242  
1243 -[[image:1654162368066-342.png]]
858 +1.
859 +11. LEDs
1244 1244  
861 +|**LEDs**|**Feature**
862 +|**LED1**|Blink when device transmit a packet.
1245 1245  
1246 -(((
1247 -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/]]
864 +1.
865 +11. Switch Jumper
866 +
867 +|**Switch Jumper**|**Feature**
868 +|**SW1**|(((
869 +ISP position: Upgrade firmware via UART
870 +
871 +Flash position: Configure device, check running status.
1248 1248  )))
873 +|**SW2**|(((
874 +5V position: set to compatible with 5v I/O.
1249 1249  
876 +3.3v position: set to compatible with 3.3v I/O.,
877 +)))
1250 1250  
879 ++3.3V: is always ON
1251 1251  
1252 -== 5.2 Common AT Command Sequence ==
881 ++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1253 1253  
1254 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
883 +1. Case Study
1255 1255  
1256 -If device has not joined network yet:
885 +User can check this URL for some case studies.
1257 1257  
1258 -(% class="box infomessage" %)
1259 -(((
1260 -**AT+FDR**
1261 -)))
887 +[[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
1262 1262  
1263 -(% class="box infomessage" %)
1264 -(((
1265 -**AT+NJM=0**
1266 -)))
1267 1267  
1268 -(% class="box infomessage" %)
1269 -(((
1270 -**ATZ**
1271 -)))
1272 1272  
1273 1273  
1274 -(((
1275 -If device already joined network:
1276 -)))
892 +1. Use AT Command
893 +11. Access AT Command
1277 1277  
1278 -(% class="box infomessage" %)
1279 -(((
1280 -**AT+NJM=0**
1281 -)))
895 +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.
1282 1282  
1283 -(% class="box infomessage" %)
1284 -(((
1285 -**ATZ**
1286 -)))
897 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1287 1287  
1288 1288  
1289 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
900 +In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1290 1290  
902 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1291 1291  
1292 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1293 1293  
1294 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1295 1295  
1296 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
906 +More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1297 1297  
1298 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1299 1299  
1300 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1301 1301  
1302 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
910 +1.
911 +11. Common AT Command Sequence
912 +111. Multi-channel ABP mode (Use with SX1301/LG308)
1303 1303  
1304 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
914 +If device has not joined network yet:
1305 1305  
1306 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
916 +AT+FDR
1307 1307  
1308 -(% 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.
918 +AT+NJM=0
1309 1309  
1310 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
920 +ATZ
1311 1311  
1312 1312  
1313 -(% style="color:red" %)**Note:**
923 +If device already joined network:
1314 1314  
1315 -(((
1316 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1317 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1318 -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.
1319 -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
1320 -)))
925 +AT+NJM=0
1321 1321  
1322 -[[image:1654162478620-421.png]]
927 +ATZ
1323 1323  
929 +1.
930 +11.
931 +111. Single-channel ABP mode (Use with LG01/LG02)
1324 1324  
1325 -= 6. FAQ =
933 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1326 1326  
1327 -== 6.1 How to upgrade the image? ==
935 +AT+NJM=0 Set to ABP mode
1328 1328  
1329 -(((
1330 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1331 -)))
937 +AT+ADR=0 Set the Adaptive Data Rate Off
1332 1332  
1333 -* (((
1334 -Support new features
1335 -)))
1336 -* (((
1337 -For bug fix
1338 -)))
1339 -* (((
1340 -Change LoRaWAN bands.
1341 -)))
939 +AT+DR=5  Set Data Rate
1342 1342  
1343 -(((
1344 -Below shows the hardware connection for how to upload an image to RS485-LN:
1345 -)))
941 +AT+TDC=60000  Set transmit interval to 60 seconds
1346 1346  
1347 -[[image:1654162535040-878.png]]
943 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1348 1348  
1349 -(((
1350 -**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]].
1351 -)))
945 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1352 1352  
1353 -(((
1354 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1355 -)))
947 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1356 1356  
1357 -(((
1358 -**Step3: **Open flashloader; choose the correct COM port to update.
1359 -)))
949 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1360 1360  
1361 -(((
1362 -(((
1363 -(((
1364 -(% 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.
1365 -)))
1366 -)))
1367 -)))
951 +ATZ          Reset MCU
1368 1368  
953 +**Note:**
1369 1369  
1370 -[[image:image-20220602175818-12.png]]
955 +1. Make sure the device is set to ABP mode in the IoT Server.
956 +1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
957 +1. 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.
958 +1. 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
1371 1371  
960 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1372 1372  
1373 -[[image:image-20220602175848-13.png]]
1374 1374  
963 +1. FAQ
964 +11. How to upgrade the image?
1375 1375  
1376 -[[image:image-20220602175912-14.png]]
966 +The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1377 1377  
968 +* Support new features
969 +* For bug fix
970 +* Change LoRaWAN bands.
1378 1378  
1379 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
972 +Below shows the hardware connection for how to upload an image to RS485-BL:
1380 1380  
1381 -[[image:image-20220602175638-10.png]]
974 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1382 1382  
976 +**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]].
1383 1383  
1384 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
978 +**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1385 1385  
1386 -User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
980 +**Step3: **Open flashloader; choose the correct COM port to update.
1387 1387  
1388 1388  
1389 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
983 +|(((
984 +HOLD PRO then press the RST button, SYS will be ON, then click next
985 +)))
1390 1390  
1391 -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"]].
987 +|(((
988 +Board detected
989 +)))
1392 1392  
991 +|(((
992 +
993 +)))
1393 1393  
1394 -== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
995 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
1395 1395  
1396 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1397 1397  
1398 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1399 1399  
999 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
1400 1400  
1401 -= 7. Trouble Shooting =
1402 1402  
1403 -== 7.1 Downlink doesn’t work, how to solve it? ==
1002 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1404 1404  
1405 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1406 1406  
1005 +1.
1006 +11. How to change the LoRa Frequency Bands/Region?
1407 1407  
1408 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1008 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1409 1409  
1410 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1411 1411  
1412 1412  
1413 -= 8. Order Info =
1012 +1.
1013 +11. How many RS485-Slave can RS485-BL connects?
1414 1414  
1415 -(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1015 +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>>path:#downlink_A8]].
1416 1416  
1417 -(% style="color:blue" %)**XXX:**
1418 1418  
1419 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1420 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1421 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1422 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1423 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1424 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1425 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1426 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1427 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1428 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1429 1429  
1430 -= 9.Packing Info =
1431 1431  
1020 +1. Trouble Shooting     
1021 +11. Downlink doesn’t work, how to solve it?
1432 1432  
1433 -**Package Includes**:
1023 +Please see this link for debug:
1434 1434  
1435 -* RS485-LN x 1
1436 -* Stick Antenna for LoRa RF part x 1
1437 -* Program cable x 1
1025 +[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]] 
1438 1438  
1439 -**Dimension and weight**:
1440 1440  
1441 -* Device Size: 13.5 x 7 x 3 cm
1442 -* Device Weight: 105g
1443 -* Package Size / pcs : 14.5 x 8 x 5 cm
1444 -* Weight / pcs : 170g
1445 1445  
1446 -= 10. FCC Caution for RS485LN-US915 =
1029 +1.
1030 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1447 1447  
1448 -(((
1449 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1450 -)))
1032 +It might about the channels mapping. Please see for detail.
1451 1451  
1452 -(((
1453 -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.
1454 -)))
1034 +[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1455 1455  
1456 -(((
1457 -
1458 -)))
1459 1459  
1460 -(((
1461 -**IMPORTANT NOTE:**
1462 -)))
1463 1463  
1464 -(((
1465 -**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:
1466 -)))
1038 +1. Order Info
1467 1467  
1468 -(((
1469 -—Reorient or relocate the receiving antenna.
1470 -)))
1040 +**Part Number: RS485-BL-XXX**
1471 1471  
1472 -(((
1473 -—Increase the separation between the equipment and receiver.
1474 -)))
1042 +**XXX:**
1475 1475  
1476 -(((
1477 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1478 -)))
1044 +* **EU433**: frequency bands EU433
1045 +* **EU868**: frequency bands EU868
1046 +* **KR920**: frequency bands KR920
1047 +* **CN470**: frequency bands CN470
1048 +* **AS923**: frequency bands AS923
1049 +* **AU915**: frequency bands AU915
1050 +* **US915**: frequency bands US915
1051 +* **IN865**: frequency bands IN865
1052 +* **RU864**: frequency bands RU864
1053 +* **KZ865: **frequency bands KZ865
1479 1479  
1480 -(((
1481 -—Consult the dealer or an experienced radio/TV technician for help.
1482 -)))
1055 +1. Packing Info
1483 1483  
1484 -(((
1485 -
1486 -)))
1057 +**Package Includes**:
1487 1487  
1488 -(((
1489 -**FCC Radiation Exposure Statement:**
1490 -)))
1059 +* RS485-BL x 1
1060 +* Stick Antenna for LoRa RF part x 1
1061 +* Program cable x 1
1491 1491  
1492 -(((
1493 -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.
1494 -)))
1063 +**Dimension and weight**:
1495 1495  
1065 +* Device Size: 13.5 x 7 x 3 cm
1066 +* Device Weight: 105g
1067 +* Package Size / pcs : 14.5 x 8 x 5 cm
1068 +* Weight / pcs : 170g
1496 1496  
1497 -= 11. Support =
1070 +1. Support
1498 1498  
1499 -* (((
1500 -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.
1501 -)))
1502 -* (((
1503 -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]].
1504 -)))
1072 +* 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.
1073 +* 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
1074 +
1075 +[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1654159460680-153.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -24.9 KB
Content
1654160691922-496.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -109.3 KB
Content
1654162355560-817.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -670.0 KB
Content
1654162368066-342.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -192.9 KB
Content
1654162478620-421.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -158.9 KB
Content
1654162535040-878.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -670.0 KB
Content
image-20220602165351-6.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -10.6 KB
Content
image-20220602165351-7.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -19.3 KB
Content
image-20220602171200-8.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -276.1 KB
Content
image-20220602171200-9.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -10.0 KB
Content
image-20220602175638-10.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -85.5 KB
Content
image-20220602175743-11.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -85.5 KB
Content
image-20220602175818-12.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -102.5 KB
Content
image-20220602175848-13.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -250.9 KB
Content
image-20220602175912-14.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -176.1 KB
Content
image-20220606110929-1.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -13.9 KB
Content

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0