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<
From version < 60.3 >
edited by Xiaoling
on 2022/06/14 11:06
To version < 39.1 >
edited by Xiaoling
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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  
... ... @@ -69,13 +69,11 @@
69 69  ** Idle: 32mA@12v
70 70  ** 20dB Transmit: 65mA@12v
71 71  
72 -
73 73  **Interface for Model:**
74 74  
75 75  * RS485
76 76  * Power Input 7~~ 24V DC. 
77 77  
78 -
79 79  **LoRa Spec:**
80 80  
81 81  * Frequency Range:
... ... @@ -95,11 +95,8 @@
95 95  * Preamble detection.
96 96  * 127 dB Dynamic Range RSSI.
97 97  * Automatic RF Sense and CAD with ultra-fast AFC.
98 -* Packet engine up to 256 bytes with CRC
77 +* Packet engine up to 256 bytes with CRC.
99 99  
100 -
101 -
102 -
103 103  == 1.3 Features ==
104 104  
105 105  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -111,9 +111,6 @@
111 111  * Support Modbus protocol
112 112  * Support Interrupt uplink (Since hardware version v1.2)
113 113  
114 -
115 -
116 -
117 117  == 1.4 Applications ==
118 118  
119 119  * Smart Buildings & Home Automation
... ... @@ -123,9 +123,6 @@
123 123  * Smart Cities
124 124  * Smart Factory
125 125  
126 -
127 -
128 -
129 129  == 1.5 Firmware Change log ==
130 130  
131 131  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -135,13 +135,9 @@
135 135  
136 136  (((
137 137  (((
138 -(((
139 139  v1.2: Add External Interrupt Pin.
140 -)))
141 141  
142 -(((
143 143  v1.0: Release
144 -)))
145 145  
146 146  
147 147  )))
... ... @@ -169,9 +169,7 @@
169 169  == 3.1 How it works? ==
170 170  
171 171  (((
172 -(((
173 173  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.
174 -)))
175 175  
176 176  
177 177  )))
... ... @@ -195,7 +195,7 @@
195 195  [[image:1653268227651-549.png||height="592" width="720"]]
196 196  
197 197  (((
198 -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:
199 199  )))
200 200  
201 201  (((
... ... @@ -247,15 +247,11 @@
247 247  
248 248  (((
249 249  (((
250 -(((
251 -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.
252 252  )))
253 -)))
254 254  
255 255  (((
256 -(((
257 257  (% 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
258 -)))
259 259  
260 260  
261 261  )))
... ... @@ -265,19 +265,19 @@
265 265  
266 266  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:
267 267  
268 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
269 -|=(% style="width: 110px;" %)(((
228 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
229 +|(% style="width:128px" %)(((
270 270  **AT Commands**
271 -)))|=(% style="width: 190px;" %)(((
231 +)))|(% style="width:305px" %)(((
272 272  **Description**
273 -)))|=(% style="width: 190px;" %)(((
233 +)))|(% style="width:346px" %)(((
274 274  **Example**
275 275  )))
276 -|(% style="width:110px" %)(((
236 +|(% style="width:128px" %)(((
277 277  AT+BAUDR
278 -)))|(% style="width:190px" %)(((
238 +)))|(% style="width:305px" %)(((
279 279  Set the baud rate (for RS485 connection). Default Value is: 9600.
280 -)))|(% style="width:190px" %)(((
240 +)))|(% style="width:346px" %)(((
281 281  (((
282 282  AT+BAUDR=9600
283 283  )))
... ... @@ -286,11 +286,11 @@
286 286  Options: (1200,2400,4800,14400,19200,115200)
287 287  )))
288 288  )))
289 -|(% style="width:110px" %)(((
249 +|(% style="width:128px" %)(((
290 290  AT+PARITY
291 -)))|(% style="width:190px" %)(((
251 +)))|(% style="width:305px" %)(((
292 292  Set UART parity (for RS485 connection)
293 -)))|(% style="width:190px" %)(((
253 +)))|(% style="width:346px" %)(((
294 294  (((
295 295  AT+PARITY=0
296 296  )))
... ... @@ -299,9 +299,9 @@
299 299  Option: 0: no parity, 1: odd parity, 2: even parity
300 300  )))
301 301  )))
302 -|(% style="width:110px" %)(((
262 +|(% style="width:128px" %)(((
303 303  AT+STOPBIT
304 -)))|(% style="width:190px" %)(((
264 +)))|(% style="width:305px" %)(((
305 305  (((
306 306  Set serial stopbit (for RS485 connection)
307 307  )))
... ... @@ -309,7 +309,7 @@
309 309  (((
310 310  
311 311  )))
312 -)))|(% style="width:190px" %)(((
272 +)))|(% style="width:346px" %)(((
313 313  (((
314 314  AT+STOPBIT=0 for 1bit
315 315  )))
... ... @@ -331,21 +331,15 @@
331 331  )))
332 332  )))
333 333  
334 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
335 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
336 -|AT+CFGDEV|(% style="width:110px" %)(((
337 -(((
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" %)(((
338 338  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
339 -)))
340 340  
341 -(((
342 342  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
343 -)))
344 344  
345 -(((
346 346  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
347 -)))
348 -)))|(% 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
349 349  
350 350  === 3.3.3 Configure read commands for each sampling ===
351 351  
... ... @@ -392,8 +392,8 @@
392 392  
393 393  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
394 394  
395 -(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
396 -|(% style="width:510px" %)(((
349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350 +|(% style="width:722px" %)(((
397 397  **AT+DATACUTx=a,b,c**
398 398  
399 399  * **a: length for the return of AT+COMMAND**
... ... @@ -462,7 +462,6 @@
462 462  
463 463  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
464 464  
465 -
466 466  1. PAYVER: Defined by AT+PAYVER
467 467  1. PAYLOAD COUNT: Total how many uplinks of this sampling.
468 468  1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
... ... @@ -519,33 +519,33 @@
519 519  
520 520  == 3.4 Uplink Payload ==
521 521  
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)
522 522  
523 -[[image:image-20220606110929-1.png]]
480 +&
524 524  
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 +
525 525  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
526 526  
527 527  
528 528  == 3.5 Configure RS485-BL via AT or Downlink ==
529 529  
530 -(((
531 531  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
532 -)))
533 533  
534 -(((
535 535  There are two kinds of Commands:
536 -)))
537 537  
538 -* (((
539 -(% 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]]
540 -)))
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]]
541 541  
542 -* (((
543 -(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
544 -)))
500 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
545 545  
546 -(((
547 -
548 -)))
549 549  
550 550  
551 551  === 3.5.1 Common Commands ===
... ... @@ -553,950 +553,570 @@
553 553  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]]
554 554  
555 555  
556 -=== 3.5.2 Sensor related commands ===
509 +=== 3.5.2 Sensor related commands: ===
557 557  
558 -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) ====
559 559  
560 -[[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.
561 561  
562 -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
563 563  
517 +**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
564 564  
565 -=== 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.
566 566  
567 567  
522 +* Downlink Payload
568 568  
524 +**0A aa**     à same as AT+MOD=aa
569 569  
570 -==== **RS485 Debug Command** ====
571 571  
572 -(((
573 -This command is used to configure the RS485 devices; they won’t be used during sampling.
574 -)))
575 575  
576 -* (((
577 -**AT Command**
578 -)))
528 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
579 579  
580 -(% class="box infomessage" %)
581 -(((
582 -(((
583 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
584 -)))
585 -)))
530 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
586 586  
587 -(((
588 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
589 -)))
532 +* AT Command
590 590  
591 -* (((
592 -**Downlink Payload**
593 -)))
534 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
594 594  
595 -(((
536 +m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
537 +
538 +
539 +
540 +* Downlink Payload
541 +
596 596  Format: A8 MM NN XX XX XX XX YY
597 -)))
598 598  
599 -(((
600 600  Where:
601 -)))
602 602  
603 -* (((
604 -MM: 1: add CRC-16/MODBUS ; 0: no CRC
605 -)))
606 -* (((
607 -NN: The length of RS485 command
608 -)))
609 -* (((
610 -XX XX XX XX: RS485 command total NN bytes
611 -)))
612 -* (((
613 -(((
614 -YY: How many bytes will be uplink from the return of this RS485 command,
615 -)))
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
616 616  
617 -* (((
618 -if YY=0, RS485-LN will execute the downlink command without uplink;
619 -)))
620 -* (((
621 -if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
622 -)))
623 -* (((
624 -if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
625 -)))
626 -)))
551 +**Example 1:**
627 627  
628 -(((
629 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
630 -)))
631 -
632 -(((
633 633  To connect a Modbus Alarm with below commands.
634 -)))
635 635  
636 -* (((
637 -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.
638 -)))
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.
639 639  
640 -* (((
641 -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.
642 -)))
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.
643 643  
644 -(((
645 645  So if user want to use downlink command to control to RS485 Alarm, he can use:
646 -)))
647 647  
648 -(((
649 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
650 -)))
561 +**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
651 651  
652 -(((
653 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
654 -)))
563 +**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
655 655  
656 -(((
657 657  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.
658 -)))
659 659  
660 -(((
661 -
662 -)))
663 663  
664 -(((
665 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
666 -)))
568 +**Example 2:**
667 667  
668 -(((
669 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
670 -)))
570 +Check TTL Sensor return:
671 671  
672 -(((
673 -
674 -)))
572 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
675 675  
676 -(((
677 -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:
678 -)))
679 679  
680 -(((
681 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
682 -)))
683 683  
684 -(((
685 - [[image:1654159460680-153.png]]
686 -)))
687 687  
577 +==== Set Payload version ====
688 688  
689 -
690 -
691 -==== **Set Payload version** ====
692 -
693 -(((
694 694  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.
695 -)))
696 696  
697 -* (((
698 -**AT Command:**
699 -)))
581 +* AT Command:
700 700  
701 -(% class="box infomessage" %)
702 -(((
703 -(((
704 -**AT+PAYVER: Set PAYVER field = 1**
705 -)))
706 -)))
583 +AT+PAYVER: Set PAYVER field = 1
707 707  
708 -* (((
709 -**Downlink Payload:**
710 -)))
711 711  
712 -(((
713 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
714 -)))
586 +* Downlink Payload:
715 715  
716 -(((
717 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
718 -)))
588 +0xAE 01   à Set PAYVER field =  0x01
719 719  
590 +0xAE 0F   à Set PAYVER field =  0x0F
720 720  
721 721  
593 +==== Set RS485 Sampling Commands ====
722 722  
723 -==== **Set RS485 Sampling Commands** ====
595 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
724 724  
725 -(((
726 -AT+COMMANDx or AT+DATACUTx
727 -)))
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]].
728 728  
729 -(((
730 -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"]].
731 -)))
732 732  
733 -(((
734 -
735 -)))
600 +* AT Command:
736 736  
737 -* (((
738 -**AT Command:**
739 -)))
602 +AT+COMMANDx: Configure RS485 read command to sensor.
740 740  
741 -(% class="box infomessage" %)
742 -(((
743 -(((
744 -**AT+COMMANDx: Configure RS485 read command to sensor.**
745 -)))
746 -)))
604 +AT+DATACUTx: Configure how to handle return from RS485 devices.
747 747  
748 -(% class="box infomessage" %)
749 -(((
750 -(((
751 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
752 -)))
753 -)))
606 +AT+SEARCHx: Configure search command
754 754  
755 -(((
756 -
757 -)))
758 758  
759 -* (((
760 -**Downlink Payload:**
761 -)))
609 +* Downlink Payload:
762 762  
763 -(((
764 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
765 -)))
611 +0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
766 766  
767 -(((
768 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
769 -)))
613 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
770 770  
771 -(((
772 772  Format: AF MM NN LL XX XX XX XX YY
773 -)))
774 774  
775 -(((
776 776  Where:
777 -)))
778 778  
779 -* (((
780 -MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
781 -)))
782 -* (((
783 -NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
784 -)))
785 -* (((
786 -LL:  The length of AT+COMMAND or AT+DATACUT command
787 -)))
788 -* (((
789 -XX XX XX XX: AT+COMMAND or AT+DATACUT command
790 -)))
791 -* (((
792 -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.
793 -)))
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.
794 794  
795 -(((
796 -**Example:**
797 -)))
625 +Example:
798 798  
799 -(((
800 -(% 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
801 -)))
627 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
802 802  
803 -(((
804 -(% 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**
805 -)))
629 +**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
806 806  
807 -(((
808 -(% 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**
809 -)))
631 +**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
810 810  
811 811  
634 +0xAB downlink command can be used for set AT+SEARCHx
812 812  
636 +Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
813 813  
814 -==== **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
815 815  
816 -(((
817 -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]].
818 -)))
641 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
819 819  
820 -(((
821 -This command is valid since v1.3 firmware version
822 -)))
823 823  
824 -(((
825 -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.
826 -)))
644 +==== Fast command to handle MODBUS device ====
827 827  
828 -(((
829 -
830 -)))
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]].
831 831  
832 -(((
833 -**Example:**
834 -)))
648 +This command is valid since v1.3 firmware version
835 835  
836 -* (((
837 -AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
838 -)))
839 -* (((
840 -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.
841 -)))
842 -* (((
843 -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.
844 -)))
845 845  
846 -[[image:image-20220602165351-6.png]]
651 +AT+MBFUN has only two value:
847 847  
848 -[[image:image-20220602165351-7.png]]
653 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
849 849  
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.
850 850  
657 +* AT+MBFUN=0: Disable Modbus fast reading.
851 851  
659 +Example:
852 852  
853 -==== **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.
854 854  
855 -(((
856 -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.
857 -)))
665 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
858 858  
859 -(((
860 -Default value: 0, range:  0 ~~ 65 seconds
861 -)))
862 862  
863 -* (((
864 -**AT Command:**
865 -)))
668 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
866 866  
867 -(% class="box infomessage" %)
868 -(((
869 -(((
870 -**AT+CMDDLaa=hex(bb cc)*1000**
871 -)))
872 -)))
873 873  
874 -(((
875 -**Example:**
876 -)))
671 +* Downlink Commands:
877 877  
878 -(((
879 -**AT+CMDDL1=1000** to send the open time to 1000ms
880 -)))
673 +A9 aa -à Same as AT+MBFUN=aa
881 881  
882 -(((
883 -
884 -)))
885 885  
886 -* (((
887 -**Downlink Payload:**
888 -)))
676 +==== RS485 command timeout ====
889 889  
890 -(((
891 -**0x AA aa bb cc**
892 -)))
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.
893 893  
894 -(((
895 -Same as: AT+CMDDLaa=hex(bb cc)*1000
896 -)))
680 +Default value: 0, range:  0 ~~ 5 seconds
897 897  
898 -(((
899 - **Example:**
900 -)))
901 901  
902 -(((
903 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
904 -)))
683 +* AT Command:
905 905  
685 +AT+CMDDLaa=hex(bb cc)
906 906  
687 +Example:
907 907  
689 +**AT+CMDDL1=1000** to send the open time to 1000ms
908 908  
909 -==== **Uplink payload mode** ====
910 910  
911 -(((
912 -Define to use one uplink or multiple uplinks for the sampling.
913 -)))
692 +* Downlink Payload:
914 914  
915 -(((
916 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
917 -)))
694 +0x AA aa bb cc
918 918  
919 -* (((
920 -**AT Command:**
921 -)))
696 +Same as: AT+CMDDLaa=hex(bb cc)
922 922  
923 -(% class="box infomessage" %)
924 -(((
925 -(((
926 -**AT+DATAUP=0**
927 -)))
928 -)))
698 + Example:
929 929  
930 -(% class="box infomessage" %)
931 -(((
932 -(((
933 -**AT+DATAUP=1**
934 -)))
935 -)))
700 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
936 936  
937 -(((
938 -
939 -)))
940 940  
941 -* (((
942 -**Downlink Payload:**
943 -)))
703 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
944 944  
945 -(((
946 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
947 -)))
705 +Define to use one uplink or multiple uplinks for the sampling.
948 948  
949 -(((
950 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
951 -)))
707 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
952 952  
709 +* AT Command:
953 953  
711 +AT+DATAUP=0
954 954  
713 +AT+DATAUP=1
955 955  
956 -==== **Manually trigger an Uplink** ====
957 957  
958 -(((
959 -Ask device to send an uplink immediately.
960 -)))
716 +* Downlink Payload:
961 961  
962 -* (((
963 -**AT Command:**
964 -)))
718 +0xAD 00   à Same as AT+DATAUP=0
965 965  
966 -(((
967 -No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
968 -)))
720 +0xAD 01   à Same as AT+DATAUP=1
969 969  
970 -(((
971 -
972 -)))
973 973  
974 -* (((
975 -**Downlink Payload:**
976 -)))
723 +==== Manually trigger an Uplink ====
977 977  
978 -(((
979 -**0x08 FF**, RS485-LN will immediately send an uplink.
980 -)))
725 +Ask device to send an uplink immediately.
981 981  
727 +* Downlink Payload:
982 982  
729 +0x08 FF, RS485-BL will immediately send an uplink.
983 983  
984 984  
985 -==== **Clear RS485 Command** ====
732 +==== Clear RS485 Command ====
986 986  
987 -(((
988 988  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
989 -)))
990 990  
991 -* (((
992 -**AT Command:**
993 -)))
994 994  
995 -(((
737 +* AT Command:
738 +
996 996  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
997 -)))
998 998  
999 -(((
1000 1000  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1001 -)))
1002 1002  
1003 -(((
1004 1004  Example screen shot after clear all RS485 commands. 
1005 -)))
1006 1006  
1007 -(((
1008 -
1009 -)))
1010 1010  
1011 -(((
746 +
1012 1012  The uplink screen shot is:
1013 -)))
1014 1014  
1015 -[[image:1654160691922-496.png]]
749 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1016 1016  
1017 1017  
1018 -* (((
1019 -**Downlink Payload:**
1020 -)))
752 +* Downlink Payload:
1021 1021  
1022 -(((
1023 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
1024 -)))
754 +0x09 aa bb same as AT+CMDEAR=aa,bb
1025 1025  
1026 1026  
757 +==== Set Serial Communication Parameters ====
1027 1027  
1028 -
1029 -==== **Set Serial Communication Parameters** ====
1030 -
1031 -(((
1032 1032  Set the Rs485 serial communication parameters:
1033 -)))
1034 1034  
1035 -* (((
1036 -**AT Command:**
1037 -)))
761 +* AT Command:
1038 1038  
1039 -(((
1040 1040  Set Baud Rate:
1041 -)))
1042 1042  
1043 -(% class="box infomessage" %)
1044 -(((
1045 -(((
1046 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1047 -)))
1048 -)))
765 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1049 1049  
1050 -(((
1051 -Set UART Parity
1052 -)))
1053 1053  
1054 -(% class="box infomessage" %)
1055 -(((
1056 -(((
1057 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1058 -)))
1059 -)))
768 +Set UART parity
1060 1060  
1061 -(((
770 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
771 +
772 +
1062 1062  Set STOPBIT
1063 -)))
1064 1064  
1065 -(% class="box infomessage" %)
1066 -(((
1067 -(((
1068 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1069 -)))
1070 -)))
775 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1071 1071  
1072 -(((
1073 -
1074 -)))
1075 1075  
1076 -* (((
1077 -**Downlink Payload:**
1078 -)))
778 +* Downlink Payload:
1079 1079  
1080 -(((
1081 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1082 -)))
780 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1083 1083  
1084 -(((
1085 -**Example:**
1086 -)))
782 +Example:
1087 1087  
1088 -* (((
1089 -A7 01 00 60   same as AT+BAUDR=9600
1090 -)))
1091 -* (((
1092 -A7 01 04 80  same as AT+BAUDR=115200
1093 -)))
784 +* A7 01 00 60   same as AT+BAUDR=9600
785 +* A7 01 04 80  same as AT+BAUDR=115200
1094 1094  
1095 -(((
1096 1096  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1097 -)))
1098 1098  
1099 -(((
1100 1100  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1101 -)))
1102 1102  
1103 1103  
792 +==== Control output power duration ====
1104 1104  
794 +User can set the output power duration before each sampling.
1105 1105  
1106 -== 3.6 Listening mode for RS485 network ==
796 +* AT Command:
1107 1107  
1108 -(((
1109 -This feature support since firmware v1.4
1110 -)))
798 +Example:
1111 1111  
1112 -(((
1113 -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.
1114 -)))
800 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1115 1115  
1116 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
802 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1117 1117  
1118 -(((
1119 -To enable the listening mode, use can run the command AT+RXMODE.
1120 -)))
1121 1121  
1122 -(((
1123 -
1124 -)))
805 +* LoRaWAN Downlink Command:
1125 1125  
1126 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1127 -|=(% style="width: 100px;" %)(((
1128 -**Command example**
1129 -)))|=(% style="width: 400px;" %)(((
1130 -**Function**
1131 -)))
1132 -|(% style="width:100px" %)(((
1133 -AT+RXMODE=1,10
1134 -)))|(% style="width:400px" %)(((
1135 -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.
1136 -)))
1137 -|(% style="width:100px" %)(((
1138 -AT+RXMODE=2,500
1139 -)))|(% style="width:400px" %)(((
1140 -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
1141 -)))
1142 -|(% style="width:100px" %)(((
1143 -AT+RXMODE=0,0
1144 -)))|(% style="width:400px" %)(((
1145 -Disable listening mode. This is the default settings.
1146 -)))
1147 -|(% style="width:100px" %)(((
1148 -
1149 -)))|(% style="width:400px" %)(((
1150 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1151 -)))
807 +07 01 aa bb  Same as AT+5VT=(aa bb)
1152 1152  
1153 -(((
1154 -**Downlink Command:**
1155 -)))
809 +07 02 aa bb  Same as AT+3V3T=(aa bb)
1156 1156  
1157 -(((
1158 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1159 -)))
1160 1160  
1161 -(((
1162 -
1163 -)))
1164 1164  
1165 -(((
1166 -**Example**:
1167 -)))
1168 1168  
1169 -(((
1170 -The RS485-LN is set to AT+RXMODE=2,1000
1171 -)))
814 +1.
815 +11. Buttons
1172 1172  
1173 -(((
1174 -There is a two Modbus commands in the RS485 network as below:
1175 -)))
817 +|**Button**|**Feature**
818 +|**RST**|Reboot RS485-BL
1176 1176  
1177 -(((
1178 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1179 -)))
820 +1.
821 +11. +3V3 Output
1180 1180  
1181 -(((
1182 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1183 -)))
823 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1184 1184  
1185 -(((
1186 -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
1187 -)))
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. 
1188 1188  
1189 -(((
1190 -[[image:image-20220602171200-9.png]]
1191 -)))
1192 1192  
1193 -(((
1194 -
1195 -)))
828 +The +3V3 output time can be controlled by AT Command.
1196 1196  
1197 -(((
1198 -(((
1199 -(% 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.
1200 -)))
1201 -)))
830 +**AT+3V3T=1000**
1202 1202  
832 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1203 1203  
1204 -== 3.7 Buttons ==
1205 1205  
835 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1206 1206  
1207 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1208 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1209 -|(% 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**
1210 -|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1211 -|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1212 1212  
1213 -== 3.8 LEDs ==
838 +1.
839 +11. +5V Output
1214 1214  
841 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1215 1215  
1216 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1217 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1218 -|**PWR**|Always on if there is power
1219 -|**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. 
1220 1220  
1221 -= 4. Case Study =
1222 1222  
1223 -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.
1224 1224  
848 +**AT+5VT=1000**
1225 1225  
1226 -= 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.
1227 1227  
1228 -== 5.1 Access AT Command ==
1229 1229  
1230 -(((
1231 -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.
1232 -)))
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.
1233 1233  
1234 -[[image:1654162355560-817.png]]
1235 1235  
1236 1236  
1237 -(((
1238 -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:
1239 -)))
1240 1240  
1241 -[[image:1654162368066-342.png]]
858 +1.
859 +11. LEDs
1242 1242  
861 +|**LEDs**|**Feature**
862 +|**LED1**|Blink when device transmit a packet.
1243 1243  
1244 -(((
1245 -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.
1246 1246  )))
873 +|**SW2**|(((
874 +5V position: set to compatible with 5v I/O.
1247 1247  
876 +3.3v position: set to compatible with 3.3v I/O.,
877 +)))
1248 1248  
879 ++3.3V: is always ON
1249 1249  
1250 -== 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.
1251 1251  
1252 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
883 +1. Case Study
1253 1253  
1254 -If device has not joined network yet:
885 +User can check this URL for some case studies.
1255 1255  
1256 -(% class="box infomessage" %)
1257 -(((
1258 -**AT+FDR**
1259 -)))
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]]
1260 1260  
1261 -(% class="box infomessage" %)
1262 -(((
1263 -**AT+NJM=0**
1264 -)))
1265 1265  
1266 -(% class="box infomessage" %)
1267 -(((
1268 -**ATZ**
1269 -)))
1270 1270  
1271 1271  
1272 -(((
1273 -If device already joined network:
1274 -)))
892 +1. Use AT Command
893 +11. Access AT Command
1275 1275  
1276 -(% class="box infomessage" %)
1277 -(((
1278 -**AT+NJM=0**
1279 -)))
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.
1280 1280  
1281 -(% class="box infomessage" %)
1282 -(((
1283 -**ATZ**
1284 -)))
897 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1285 1285  
1286 1286  
1287 -=== 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:
1288 1288  
902 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1289 1289  
1290 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1291 1291  
1292 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1293 1293  
1294 -(% 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]]
1295 1295  
1296 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1297 1297  
1298 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1299 1299  
1300 -(% 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)
1301 1301  
1302 -(% 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:
1303 1303  
1304 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
916 +AT+FDR
1305 1305  
1306 -(% 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
1307 1307  
1308 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
920 +ATZ
1309 1309  
1310 1310  
1311 -(% style="color:red" %)**Note:**
923 +If device already joined network:
1312 1312  
1313 -(((
1314 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1315 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1316 -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.
1317 -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
1318 -)))
925 +AT+NJM=0
1319 1319  
1320 -[[image:1654162478620-421.png]]
927 +ATZ
1321 1321  
929 +1.
930 +11.
931 +111. Single-channel ABP mode (Use with LG01/LG02)
1322 1322  
1323 -= 6. FAQ =
933 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1324 1324  
1325 -== 6.1 How to upgrade the image? ==
935 +AT+NJM=0 Set to ABP mode
1326 1326  
1327 -(((
1328 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1329 -)))
937 +AT+ADR=0 Set the Adaptive Data Rate Off
1330 1330  
1331 -* (((
1332 -Support new features
1333 -)))
1334 -* (((
1335 -For bug fix
1336 -)))
1337 -* (((
1338 -Change LoRaWAN bands.
1339 -)))
939 +AT+DR=5  Set Data Rate
1340 1340  
1341 -(((
1342 -Below shows the hardware connection for how to upload an image to RS485-LN:
1343 -)))
941 +AT+TDC=60000  Set transmit interval to 60 seconds
1344 1344  
1345 -[[image:1654162535040-878.png]]
943 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1346 1346  
1347 -(((
1348 -**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]].
1349 -)))
945 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1350 1350  
1351 -(((
1352 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1353 -)))
947 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1354 1354  
1355 -(((
1356 -**Step3: **Open flashloader; choose the correct COM port to update.
1357 -)))
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.
1358 1358  
1359 -(((
1360 -(((
1361 -(((
1362 -(% 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.
1363 -)))
1364 -)))
1365 -)))
951 +ATZ          Reset MCU
1366 1366  
953 +**Note:**
1367 1367  
1368 -[[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
1369 1369  
960 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1370 1370  
1371 -[[image:image-20220602175848-13.png]]
1372 1372  
963 +1. FAQ
964 +11. How to upgrade the image?
1373 1373  
1374 -[[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:
1375 1375  
968 +* Support new features
969 +* For bug fix
970 +* Change LoRaWAN bands.
1376 1376  
1377 -**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:
1378 1378  
1379 -[[image:image-20220602175638-10.png]]
974 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1380 1380  
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]].
1381 1381  
1382 -== 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/]].
1383 1383  
1384 -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.
1385 1385  
1386 1386  
1387 -== 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 +)))
1388 1388  
1389 -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 +)))
1390 1390  
991 +|(((
992 +
993 +)))
1391 1391  
1392 -== 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]]
1393 1393  
1394 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1395 1395  
1396 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1397 1397  
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]]
1398 1398  
1399 -= 7. Trouble Shooting =
1400 1400  
1401 -== 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]]
1402 1402  
1403 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1404 1404  
1005 +1.
1006 +11. How to change the LoRa Frequency Bands/Region?
1405 1405  
1406 -== 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.
1407 1407  
1408 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1409 1409  
1410 1410  
1411 -= 8. Order Info =
1012 +1.
1013 +11. How many RS485-Slave can RS485-BL connects?
1412 1412  
1413 -(% 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]].
1414 1414  
1415 -(% style="color:blue" %)**XXX:**
1416 1416  
1417 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1418 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1419 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1420 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1421 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1422 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1423 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1424 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1425 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1426 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1427 1427  
1428 -= 9.Packing Info =
1429 1429  
1020 +1. Trouble Shooting     
1021 +11. Downlink doesn’t work, how to solve it?
1430 1430  
1431 -**Package Includes**:
1023 +Please see this link for debug:
1432 1432  
1433 -* RS485-LN x 1
1434 -* Stick Antenna for LoRa RF part x 1
1435 -* 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]] 
1436 1436  
1437 -**Dimension and weight**:
1438 1438  
1439 -* Device Size: 13.5 x 7 x 3 cm
1440 -* Device Weight: 105g
1441 -* Package Size / pcs : 14.5 x 8 x 5 cm
1442 -* Weight / pcs : 170g
1443 1443  
1444 -= 10. FCC Caution for RS485LN-US915 =
1029 +1.
1030 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1445 1445  
1446 -(((
1447 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1448 -)))
1032 +It might about the channels mapping. Please see for detail.
1449 1449  
1450 -(((
1451 -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.
1452 -)))
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]]
1453 1453  
1454 -(((
1455 -
1456 -)))
1457 1457  
1458 -(((
1459 -**IMPORTANT NOTE:**
1460 -)))
1461 1461  
1462 -(((
1463 -**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:
1464 -)))
1038 +1. Order Info
1465 1465  
1466 -(((
1467 -—Reorient or relocate the receiving antenna.
1468 -)))
1040 +**Part Number: RS485-BL-XXX**
1469 1469  
1470 -(((
1471 -—Increase the separation between the equipment and receiver.
1472 -)))
1042 +**XXX:**
1473 1473  
1474 -(((
1475 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1476 -)))
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
1477 1477  
1478 -(((
1479 -—Consult the dealer or an experienced radio/TV technician for help.
1480 -)))
1055 +1. Packing Info
1481 1481  
1482 -(((
1483 -
1484 -)))
1057 +**Package Includes**:
1485 1485  
1486 -(((
1487 -**FCC Radiation Exposure Statement:**
1488 -)))
1059 +* RS485-BL x 1
1060 +* Stick Antenna for LoRa RF part x 1
1061 +* Program cable x 1
1489 1489  
1490 -(((
1491 -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.
1492 -)))
1063 +**Dimension and weight**:
1493 1493  
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
1494 1494  
1495 -= 11. Support =
1070 +1. Support
1496 1496  
1497 -* (((
1498 -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.
1499 -)))
1500 -* (((
1501 -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]].
1502 -)))
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]]
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