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Summary

Details

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... ... @@ -6,18 +6,12 @@
6 6  **RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 -
10 -
11 11  **Table of Contents:**
12 12  
13 -{{toc/}}
14 14  
15 15  
16 16  
17 17  
18 -
19 -
20 -
21 21  = 1.Introduction =
22 22  
23 23  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
... ... @@ -24,33 +24,23 @@
24 24  
25 25  (((
26 26  (((
27 -(((
28 28  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
29 29  )))
30 -)))
31 31  
32 32  (((
33 -(((
34 34  RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
35 35  )))
36 -)))
37 37  
38 38  (((
39 -(((
40 40  (% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
41 41  )))
42 -)))
43 43  
44 44  (((
45 -(((
46 46  (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
47 -)))
48 48  
49 -(((
50 50  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
51 51  )))
52 52  )))
53 -)))
54 54  
55 55  [[image:1653267211009-519.png||height="419" width="724"]]
56 56  
... ... @@ -90,10 +90,8 @@
90 90  * Preamble detection.
91 91  * 127 dB Dynamic Range RSSI.
92 92  * Automatic RF Sense and CAD with ultra-fast AFC.
93 -* Packet engine up to 256 bytes with CRC
77 +* Packet engine up to 256 bytes with CRC.
94 94  
95 -
96 -
97 97  == 1.3 Features ==
98 98  
99 99  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -105,8 +105,6 @@
105 105  * Support Modbus protocol
106 106  * Support Interrupt uplink (Since hardware version v1.2)
107 107  
108 -
109 -
110 110  == 1.4 Applications ==
111 111  
112 112  * Smart Buildings & Home Automation
... ... @@ -116,8 +116,6 @@
116 116  * Smart Cities
117 117  * Smart Factory
118 118  
119 -
120 -
121 121  == 1.5 Firmware Change log ==
122 122  
123 123  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -127,13 +127,9 @@
127 127  
128 128  (((
129 129  (((
130 -(((
131 131  v1.2: Add External Interrupt Pin.
132 -)))
133 133  
134 -(((
135 135  v1.0: Release
136 -)))
137 137  
138 138  
139 139  )))
... ... @@ -161,9 +161,7 @@
161 161  == 3.1 How it works? ==
162 162  
163 163  (((
164 -(((
165 165  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.
166 -)))
167 167  
168 168  
169 169  )))
... ... @@ -187,7 +187,7 @@
187 187  [[image:1653268227651-549.png||height="592" width="720"]]
188 188  
189 189  (((
190 -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:
191 191  )))
192 192  
193 193  (((
... ... @@ -239,15 +239,11 @@
239 239  
240 240  (((
241 241  (((
242 -(((
243 -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.
244 244  )))
245 -)))
246 246  
247 247  (((
248 -(((
249 249  (% 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
250 -)))
251 251  
252 252  
253 253  )))
... ... @@ -257,19 +257,19 @@
257 257  
258 258  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:
259 259  
260 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
261 -|=(% style="width: 110px;" %)(((
228 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
229 +|(% style="width:128px" %)(((
262 262  **AT Commands**
263 -)))|=(% style="width: 190px;" %)(((
231 +)))|(% style="width:305px" %)(((
264 264  **Description**
265 -)))|=(% style="width: 190px;" %)(((
233 +)))|(% style="width:346px" %)(((
266 266  **Example**
267 267  )))
268 -|(% style="width:110px" %)(((
236 +|(% style="width:128px" %)(((
269 269  AT+BAUDR
270 -)))|(% style="width:190px" %)(((
238 +)))|(% style="width:305px" %)(((
271 271  Set the baud rate (for RS485 connection). Default Value is: 9600.
272 -)))|(% style="width:190px" %)(((
240 +)))|(% style="width:346px" %)(((
273 273  (((
274 274  AT+BAUDR=9600
275 275  )))
... ... @@ -278,11 +278,11 @@
278 278  Options: (1200,2400,4800,14400,19200,115200)
279 279  )))
280 280  )))
281 -|(% style="width:110px" %)(((
249 +|(% style="width:128px" %)(((
282 282  AT+PARITY
283 -)))|(% style="width:190px" %)(((
251 +)))|(% style="width:305px" %)(((
284 284  Set UART parity (for RS485 connection)
285 -)))|(% style="width:190px" %)(((
253 +)))|(% style="width:346px" %)(((
286 286  (((
287 287  AT+PARITY=0
288 288  )))
... ... @@ -291,9 +291,9 @@
291 291  Option: 0: no parity, 1: odd parity, 2: even parity
292 292  )))
293 293  )))
294 -|(% style="width:110px" %)(((
262 +|(% style="width:128px" %)(((
295 295  AT+STOPBIT
296 -)))|(% style="width:190px" %)(((
264 +)))|(% style="width:305px" %)(((
297 297  (((
298 298  Set serial stopbit (for RS485 connection)
299 299  )))
... ... @@ -301,7 +301,7 @@
301 301  (((
302 302  
303 303  )))
304 -)))|(% style="width:190px" %)(((
272 +)))|(% style="width:346px" %)(((
305 305  (((
306 306  AT+STOPBIT=0 for 1bit
307 307  )))
... ... @@ -323,21 +323,15 @@
323 323  )))
324 324  )))
325 325  
326 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
327 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
328 -|AT+CFGDEV|(% style="width:110px" %)(((
329 -(((
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" %)(((
330 330  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
331 -)))
332 332  
333 -(((
334 334  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
335 -)))
336 336  
337 -(((
338 338  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
339 -)))
340 -)))|(% 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
341 341  
342 342  === 3.3.3 Configure read commands for each sampling ===
343 343  
... ... @@ -384,8 +384,8 @@
384 384  
385 385  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
386 386  
387 -(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
388 -|(% style="width:510px" %)(((
349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350 +|(% style="width:722px" %)(((
389 389  **AT+DATACUTx=a,b,c**
390 390  
391 391  * **a: length for the return of AT+COMMAND**
... ... @@ -454,7 +454,6 @@
454 454  
455 455  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
456 456  
457 -
458 458  1. PAYVER: Defined by AT+PAYVER
459 459  1. PAYLOAD COUNT: Total how many uplinks of this sampling.
460 460  1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
... ... @@ -511,33 +511,33 @@
511 511  
512 512  == 3.4 Uplink Payload ==
513 513  
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)
514 514  
515 -[[image:image-20220606110929-1.png]]
480 +&
516 516  
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 +
517 517  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
518 518  
519 519  
520 520  == 3.5 Configure RS485-BL via AT or Downlink ==
521 521  
522 -(((
523 523  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
524 -)))
525 525  
526 -(((
527 527  There are two kinds of Commands:
528 -)))
529 529  
530 -* (((
531 -(% 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]]
532 -)))
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]]
533 533  
534 -* (((
535 -(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
536 -)))
500 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
537 537  
538 -(((
539 -
540 -)))
541 541  
542 542  
543 543  === 3.5.1 Common Commands ===
... ... @@ -545,950 +545,570 @@
545 545  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
546 546  
547 547  
548 -=== 3.5.2 Sensor related commands ===
509 +=== 3.5.2 Sensor related commands: ===
549 549  
550 -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) ====
551 551  
552 -[[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.
553 553  
554 -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
555 555  
517 +**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
556 556  
557 -=== 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.
558 558  
559 559  
522 +* Downlink Payload
560 560  
524 +**0A aa**     à same as AT+MOD=aa
561 561  
562 -==== **RS485 Debug Command** ====
563 563  
564 -(((
565 -This command is used to configure the RS485 devices; they won’t be used during sampling.
566 -)))
567 567  
568 -* (((
569 -**AT Command**
570 -)))
528 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
571 571  
572 -(% class="box infomessage" %)
573 -(((
574 -(((
575 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
576 -)))
577 -)))
530 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
578 578  
579 -(((
580 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
581 -)))
532 +* AT Command
582 582  
583 -* (((
584 -**Downlink Payload**
585 -)))
534 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
586 586  
587 -(((
536 +m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
537 +
538 +
539 +
540 +* Downlink Payload
541 +
588 588  Format: A8 MM NN XX XX XX XX YY
589 -)))
590 590  
591 -(((
592 592  Where:
593 -)))
594 594  
595 -* (((
596 -MM: 1: add CRC-16/MODBUS ; 0: no CRC
597 -)))
598 -* (((
599 -NN: The length of RS485 command
600 -)))
601 -* (((
602 -XX XX XX XX: RS485 command total NN bytes
603 -)))
604 -* (((
605 -(((
606 -YY: How many bytes will be uplink from the return of this RS485 command,
607 -)))
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
608 608  
609 -* (((
610 -if YY=0, RS485-LN will execute the downlink command without uplink;
611 -)))
612 -* (((
613 -if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
614 -)))
615 -* (((
616 -if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
617 -)))
618 -)))
551 +**Example 1:**
619 619  
620 -(((
621 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
622 -)))
623 -
624 -(((
625 625  To connect a Modbus Alarm with below commands.
626 -)))
627 627  
628 -* (((
629 -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.
630 -)))
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.
631 631  
632 -* (((
633 -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.
634 -)))
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.
635 635  
636 -(((
637 637  So if user want to use downlink command to control to RS485 Alarm, he can use:
638 -)))
639 639  
640 -(((
641 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
642 -)))
561 +**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
643 643  
644 -(((
645 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
646 -)))
563 +**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
647 647  
648 -(((
649 649  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.
650 -)))
651 651  
652 -(((
653 -
654 -)))
655 655  
656 -(((
657 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
658 -)))
568 +**Example 2:**
659 659  
660 -(((
661 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
662 -)))
570 +Check TTL Sensor return:
663 663  
664 -(((
665 -
666 -)))
572 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
667 667  
668 -(((
669 -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:
670 -)))
671 671  
672 -(((
673 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
674 -)))
675 675  
676 -(((
677 - [[image:1654159460680-153.png]]
678 -)))
679 679  
577 +==== Set Payload version ====
680 680  
681 -
682 -
683 -==== **Set Payload version** ====
684 -
685 -(((
686 686  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.
687 -)))
688 688  
689 -* (((
690 -**AT Command:**
691 -)))
581 +* AT Command:
692 692  
693 -(% class="box infomessage" %)
694 -(((
695 -(((
696 -**AT+PAYVER: Set PAYVER field = 1**
697 -)))
698 -)))
583 +AT+PAYVER: Set PAYVER field = 1
699 699  
700 -* (((
701 -**Downlink Payload:**
702 -)))
703 703  
704 -(((
705 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
706 -)))
586 +* Downlink Payload:
707 707  
708 -(((
709 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
710 -)))
588 +0xAE 01   à Set PAYVER field =  0x01
711 711  
590 +0xAE 0F   à Set PAYVER field =  0x0F
712 712  
713 713  
593 +==== Set RS485 Sampling Commands ====
714 714  
715 -==== **Set RS485 Sampling Commands** ====
595 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
716 716  
717 -(((
718 -AT+COMMANDx or AT+DATACUTx
719 -)))
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]].
720 720  
721 -(((
722 -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"]].
723 -)))
724 724  
725 -(((
726 -
727 -)))
600 +* AT Command:
728 728  
729 -* (((
730 -**AT Command:**
731 -)))
602 +AT+COMMANDx: Configure RS485 read command to sensor.
732 732  
733 -(% class="box infomessage" %)
734 -(((
735 -(((
736 -**AT+COMMANDx: Configure RS485 read command to sensor.**
737 -)))
738 -)))
604 +AT+DATACUTx: Configure how to handle return from RS485 devices.
739 739  
740 -(% class="box infomessage" %)
741 -(((
742 -(((
743 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
744 -)))
745 -)))
606 +AT+SEARCHx: Configure search command
746 746  
747 -(((
748 -
749 -)))
750 750  
751 -* (((
752 -**Downlink Payload:**
753 -)))
609 +* Downlink Payload:
754 754  
755 -(((
756 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
757 -)))
611 +0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
758 758  
759 -(((
760 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
761 -)))
613 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
762 762  
763 -(((
764 764  Format: AF MM NN LL XX XX XX XX YY
765 -)))
766 766  
767 -(((
768 768  Where:
769 -)))
770 770  
771 -* (((
772 -MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
773 -)))
774 -* (((
775 -NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
776 -)))
777 -* (((
778 -LL:  The length of AT+COMMAND or AT+DATACUT command
779 -)))
780 -* (((
781 -XX XX XX XX: AT+COMMAND or AT+DATACUT command
782 -)))
783 -* (((
784 -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.
785 -)))
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.
786 786  
787 -(((
788 -**Example:**
789 -)))
625 +Example:
790 790  
791 -(((
792 -(% 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
793 -)))
627 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
794 794  
795 -(((
796 -(% 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**
797 -)))
629 +**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
798 798  
799 -(((
800 -(% 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**
801 -)))
631 +**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
802 802  
803 803  
634 +0xAB downlink command can be used for set AT+SEARCHx
804 804  
636 +Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
805 805  
806 -==== **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
807 807  
808 -(((
809 -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]].
810 -)))
641 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
811 811  
812 -(((
813 -This command is valid since v1.3 firmware version
814 -)))
815 815  
816 -(((
817 -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.
818 -)))
644 +==== Fast command to handle MODBUS device ====
819 819  
820 -(((
821 -
822 -)))
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]].
823 823  
824 -(((
825 -**Example:**
826 -)))
648 +This command is valid since v1.3 firmware version
827 827  
828 -* (((
829 -AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
830 -)))
831 -* (((
832 -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.
833 -)))
834 -* (((
835 -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.
836 -)))
837 837  
838 -[[image:image-20220602165351-6.png]]
651 +AT+MBFUN has only two value:
839 839  
840 -[[image:image-20220602165351-7.png]]
653 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
841 841  
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.
842 842  
657 +* AT+MBFUN=0: Disable Modbus fast reading.
843 843  
659 +Example:
844 844  
845 -==== **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.
846 846  
847 -(((
848 -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.
849 -)))
665 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
850 850  
851 -(((
852 -Default value: 0, range:  0 ~~ 65 seconds
853 -)))
854 854  
855 -* (((
856 -**AT Command:**
857 -)))
668 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
858 858  
859 -(% class="box infomessage" %)
860 -(((
861 -(((
862 -**AT+CMDDLaa=hex(bb cc)*1000**
863 -)))
864 -)))
865 865  
866 -(((
867 -**Example:**
868 -)))
671 +* Downlink Commands:
869 869  
870 -(((
871 -**AT+CMDDL1=1000** to send the open time to 1000ms
872 -)))
673 +A9 aa -à Same as AT+MBFUN=aa
873 873  
874 -(((
875 -
876 -)))
877 877  
878 -* (((
879 -**Downlink Payload:**
880 -)))
676 +==== RS485 command timeout ====
881 881  
882 -(((
883 -**0x AA aa bb cc**
884 -)))
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.
885 885  
886 -(((
887 -Same as: AT+CMDDLaa=hex(bb cc)*1000
888 -)))
680 +Default value: 0, range:  0 ~~ 5 seconds
889 889  
890 -(((
891 - **Example:**
892 -)))
893 893  
894 -(((
895 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
896 -)))
683 +* AT Command:
897 897  
685 +AT+CMDDLaa=hex(bb cc)
898 898  
687 +Example:
899 899  
689 +**AT+CMDDL1=1000** to send the open time to 1000ms
900 900  
901 -==== **Uplink payload mode** ====
902 902  
903 -(((
904 -Define to use one uplink or multiple uplinks for the sampling.
905 -)))
692 +* Downlink Payload:
906 906  
907 -(((
908 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
909 -)))
694 +0x AA aa bb cc
910 910  
911 -* (((
912 -**AT Command:**
913 -)))
696 +Same as: AT+CMDDLaa=hex(bb cc)
914 914  
915 -(% class="box infomessage" %)
916 -(((
917 -(((
918 -**AT+DATAUP=0**
919 -)))
920 -)))
698 + Example:
921 921  
922 -(% class="box infomessage" %)
923 -(((
924 -(((
925 -**AT+DATAUP=1**
926 -)))
927 -)))
700 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
928 928  
929 -(((
930 -
931 -)))
932 932  
933 -* (((
934 -**Downlink Payload:**
935 -)))
703 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
936 936  
937 -(((
938 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
939 -)))
705 +Define to use one uplink or multiple uplinks for the sampling.
940 940  
941 -(((
942 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
943 -)))
707 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
944 944  
709 +* AT Command:
945 945  
711 +AT+DATAUP=0
946 946  
713 +AT+DATAUP=1
947 947  
948 -==== **Manually trigger an Uplink** ====
949 949  
950 -(((
951 -Ask device to send an uplink immediately.
952 -)))
716 +* Downlink Payload:
953 953  
954 -* (((
955 -**AT Command:**
956 -)))
718 +0xAD 00   à Same as AT+DATAUP=0
957 957  
958 -(((
959 -No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
960 -)))
720 +0xAD 01   à Same as AT+DATAUP=1
961 961  
962 -(((
963 -
964 -)))
965 965  
966 -* (((
967 -**Downlink Payload:**
968 -)))
723 +==== Manually trigger an Uplink ====
969 969  
970 -(((
971 -**0x08 FF**, RS485-LN will immediately send an uplink.
972 -)))
725 +Ask device to send an uplink immediately.
973 973  
727 +* Downlink Payload:
974 974  
729 +0x08 FF, RS485-BL will immediately send an uplink.
975 975  
976 976  
977 -==== **Clear RS485 Command** ====
732 +==== Clear RS485 Command ====
978 978  
979 -(((
980 980  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
981 -)))
982 982  
983 -* (((
984 -**AT Command:**
985 -)))
986 986  
987 -(((
737 +* AT Command:
738 +
988 988  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
989 -)))
990 990  
991 -(((
992 992  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
993 -)))
994 994  
995 -(((
996 996  Example screen shot after clear all RS485 commands. 
997 -)))
998 998  
999 -(((
1000 -
1001 -)))
1002 1002  
1003 -(((
746 +
1004 1004  The uplink screen shot is:
1005 -)))
1006 1006  
1007 -[[image:1654160691922-496.png]]
749 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1008 1008  
1009 1009  
1010 -* (((
1011 -**Downlink Payload:**
1012 -)))
752 +* Downlink Payload:
1013 1013  
1014 -(((
1015 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
1016 -)))
754 +0x09 aa bb same as AT+CMDEAR=aa,bb
1017 1017  
1018 1018  
757 +==== Set Serial Communication Parameters ====
1019 1019  
1020 -
1021 -==== **Set Serial Communication Parameters** ====
1022 -
1023 -(((
1024 1024  Set the Rs485 serial communication parameters:
1025 -)))
1026 1026  
1027 -* (((
1028 -**AT Command:**
1029 -)))
761 +* AT Command:
1030 1030  
1031 -(((
1032 1032  Set Baud Rate:
1033 -)))
1034 1034  
1035 -(% class="box infomessage" %)
1036 -(((
1037 -(((
1038 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1039 -)))
1040 -)))
765 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1041 1041  
1042 -(((
1043 -Set UART Parity
1044 -)))
1045 1045  
1046 -(% class="box infomessage" %)
1047 -(((
1048 -(((
1049 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1050 -)))
1051 -)))
768 +Set UART parity
1052 1052  
1053 -(((
770 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
771 +
772 +
1054 1054  Set STOPBIT
1055 -)))
1056 1056  
1057 -(% class="box infomessage" %)
1058 -(((
1059 -(((
1060 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1061 -)))
1062 -)))
775 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1063 1063  
1064 -(((
1065 -
1066 -)))
1067 1067  
1068 -* (((
1069 -**Downlink Payload:**
1070 -)))
778 +* Downlink Payload:
1071 1071  
1072 -(((
1073 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1074 -)))
780 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1075 1075  
1076 -(((
1077 -**Example:**
1078 -)))
782 +Example:
1079 1079  
1080 -* (((
1081 -A7 01 00 60   same as AT+BAUDR=9600
1082 -)))
1083 -* (((
1084 -A7 01 04 80  same as AT+BAUDR=115200
1085 -)))
784 +* A7 01 00 60   same as AT+BAUDR=9600
785 +* A7 01 04 80  same as AT+BAUDR=115200
1086 1086  
1087 -(((
1088 1088  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1089 -)))
1090 1090  
1091 -(((
1092 1092  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1093 -)))
1094 1094  
1095 1095  
792 +==== Control output power duration ====
1096 1096  
794 +User can set the output power duration before each sampling.
1097 1097  
1098 -== 3.6 Listening mode for RS485 network ==
796 +* AT Command:
1099 1099  
1100 -(((
1101 -This feature support since firmware v1.4
1102 -)))
798 +Example:
1103 1103  
1104 -(((
1105 -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.
1106 -)))
800 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1107 1107  
1108 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
802 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1109 1109  
1110 -(((
1111 -To enable the listening mode, use can run the command AT+RXMODE.
1112 -)))
1113 1113  
1114 -(((
1115 -
1116 -)))
805 +* LoRaWAN Downlink Command:
1117 1117  
1118 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1119 -|=(% style="width: 100px;" %)(((
1120 -**Command example**
1121 -)))|=(% style="width: 400px;" %)(((
1122 -**Function**
1123 -)))
1124 -|(% style="width:100px" %)(((
1125 -AT+RXMODE=1,10
1126 -)))|(% style="width:400px" %)(((
1127 -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.
1128 -)))
1129 -|(% style="width:100px" %)(((
1130 -AT+RXMODE=2,500
1131 -)))|(% style="width:400px" %)(((
1132 -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
1133 -)))
1134 -|(% style="width:100px" %)(((
1135 -AT+RXMODE=0,0
1136 -)))|(% style="width:400px" %)(((
1137 -Disable listening mode. This is the default settings.
1138 -)))
1139 -|(% style="width:100px" %)(((
1140 -
1141 -)))|(% style="width:400px" %)(((
1142 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1143 -)))
807 +07 01 aa bb  Same as AT+5VT=(aa bb)
1144 1144  
1145 -(((
1146 -**Downlink Command:**
1147 -)))
809 +07 02 aa bb  Same as AT+3V3T=(aa bb)
1148 1148  
1149 -(((
1150 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1151 -)))
1152 1152  
1153 -(((
1154 -
1155 -)))
1156 1156  
1157 -(((
1158 -**Example**:
1159 -)))
1160 1160  
1161 -(((
1162 -The RS485-LN is set to AT+RXMODE=2,1000
1163 -)))
814 +1.
815 +11. Buttons
1164 1164  
1165 -(((
1166 -There is a two Modbus commands in the RS485 network as below:
1167 -)))
817 +|**Button**|**Feature**
818 +|**RST**|Reboot RS485-BL
1168 1168  
1169 -(((
1170 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1171 -)))
820 +1.
821 +11. +3V3 Output
1172 1172  
1173 -(((
1174 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1175 -)))
823 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1176 1176  
1177 -(((
1178 -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
1179 -)))
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. 
1180 1180  
1181 -(((
1182 -[[image:image-20220602171200-9.png]]
1183 -)))
1184 1184  
1185 -(((
1186 -
1187 -)))
828 +The +3V3 output time can be controlled by AT Command.
1188 1188  
1189 -(((
1190 -(((
1191 -(% 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.
1192 -)))
1193 -)))
830 +**AT+3V3T=1000**
1194 1194  
832 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1195 1195  
1196 -== 3.7 Buttons ==
1197 1197  
835 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1198 1198  
1199 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1200 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1201 -|(% style="width:50px" %)**ACT**|(% style="width:350px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1202 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1203 -|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1204 1204  
1205 -== 3.8 LEDs ==
838 +1.
839 +11. +5V Output
1206 1206  
841 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1207 1207  
1208 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1209 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1210 -|**PWR**|Always on if there is power
1211 -|**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. 
1212 1212  
1213 -= 4. Case Study =
1214 1214  
1215 -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.
1216 1216  
848 +**AT+5VT=1000**
1217 1217  
1218 -= 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.
1219 1219  
1220 -== 5.1 Access AT Command ==
1221 1221  
1222 -(((
1223 -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.
1224 -)))
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.
1225 1225  
1226 -[[image:1654162355560-817.png]]
1227 1227  
1228 1228  
1229 -(((
1230 -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:
1231 -)))
1232 1232  
1233 -[[image:1654162368066-342.png]]
858 +1.
859 +11. LEDs
1234 1234  
861 +|**LEDs**|**Feature**
862 +|**LED1**|Blink when device transmit a packet.
1235 1235  
1236 -(((
1237 -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.
1238 1238  )))
873 +|**SW2**|(((
874 +5V position: set to compatible with 5v I/O.
1239 1239  
876 +3.3v position: set to compatible with 3.3v I/O.,
877 +)))
1240 1240  
879 ++3.3V: is always ON
1241 1241  
1242 -== 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.
1243 1243  
1244 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
883 +1. Case Study
1245 1245  
1246 -If device has not joined network yet:
885 +User can check this URL for some case studies.
1247 1247  
1248 -(% class="box infomessage" %)
1249 -(((
1250 -**AT+FDR**
1251 -)))
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]]
1252 1252  
1253 -(% class="box infomessage" %)
1254 -(((
1255 -**AT+NJM=0**
1256 -)))
1257 1257  
1258 -(% class="box infomessage" %)
1259 -(((
1260 -**ATZ**
1261 -)))
1262 1262  
1263 1263  
1264 -(((
1265 -If device already joined network:
1266 -)))
892 +1. Use AT Command
893 +11. Access AT Command
1267 1267  
1268 -(% class="box infomessage" %)
1269 -(((
1270 -**AT+NJM=0**
1271 -)))
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.
1272 1272  
1273 -(% class="box infomessage" %)
1274 -(((
1275 -**ATZ**
1276 -)))
897 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1277 1277  
1278 1278  
1279 -=== 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:
1280 1280  
902 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1281 1281  
1282 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1283 1283  
1284 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1285 1285  
1286 -(% 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]]
1287 1287  
1288 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1289 1289  
1290 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1291 1291  
1292 -(% 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)
1293 1293  
1294 -(% 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:
1295 1295  
1296 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
916 +AT+FDR
1297 1297  
1298 -(% 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
1299 1299  
1300 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
920 +ATZ
1301 1301  
1302 1302  
1303 -(% style="color:red" %)**Note:**
923 +If device already joined network:
1304 1304  
1305 -(((
1306 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1307 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1308 -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.
1309 -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
1310 -)))
925 +AT+NJM=0
1311 1311  
1312 -[[image:1654162478620-421.png]]
927 +ATZ
1313 1313  
929 +1.
930 +11.
931 +111. Single-channel ABP mode (Use with LG01/LG02)
1314 1314  
1315 -= 6. FAQ =
933 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1316 1316  
1317 -== 6.1 How to upgrade the image? ==
935 +AT+NJM=0 Set to ABP mode
1318 1318  
1319 -(((
1320 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1321 -)))
937 +AT+ADR=0 Set the Adaptive Data Rate Off
1322 1322  
1323 -* (((
1324 -Support new features
1325 -)))
1326 -* (((
1327 -For bug fix
1328 -)))
1329 -* (((
1330 -Change LoRaWAN bands.
1331 -)))
939 +AT+DR=5  Set Data Rate
1332 1332  
1333 -(((
1334 -Below shows the hardware connection for how to upload an image to RS485-LN:
1335 -)))
941 +AT+TDC=60000  Set transmit interval to 60 seconds
1336 1336  
1337 -[[image:1654162535040-878.png]]
943 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1338 1338  
1339 -(((
1340 -**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]].
1341 -)))
945 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1342 1342  
1343 -(((
1344 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1345 -)))
947 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1346 1346  
1347 -(((
1348 -**Step3: **Open flashloader; choose the correct COM port to update.
1349 -)))
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.
1350 1350  
1351 -(((
1352 -(((
1353 -(((
1354 -(% 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.
1355 -)))
1356 -)))
1357 -)))
951 +ATZ          Reset MCU
1358 1358  
953 +**Note:**
1359 1359  
1360 -[[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
1361 1361  
960 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1362 1362  
1363 -[[image:image-20220602175848-13.png]]
1364 1364  
963 +1. FAQ
964 +11. How to upgrade the image?
1365 1365  
1366 -[[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:
1367 1367  
968 +* Support new features
969 +* For bug fix
970 +* Change LoRaWAN bands.
1368 1368  
1369 -**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:
1370 1370  
1371 -[[image:image-20220602175638-10.png]]
974 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1372 1372  
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]].
1373 1373  
1374 -== 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/]].
1375 1375  
1376 -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.
1377 1377  
1378 1378  
1379 -== 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 +)))
1380 1380  
1381 -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 +)))
1382 1382  
991 +|(((
992 +
993 +)))
1383 1383  
1384 -== 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]]
1385 1385  
1386 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1387 1387  
1388 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1389 1389  
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]]
1390 1390  
1391 -= 7. Trouble Shooting =
1392 1392  
1393 -== 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]]
1394 1394  
1395 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1396 1396  
1005 +1.
1006 +11. How to change the LoRa Frequency Bands/Region?
1397 1397  
1398 -== 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.
1399 1399  
1400 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1401 1401  
1402 1402  
1403 -= 8. Order Info =
1012 +1.
1013 +11. How many RS485-Slave can RS485-BL connects?
1404 1404  
1405 -(% 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]].
1406 1406  
1407 -(% style="color:blue" %)**XXX:**
1408 1408  
1409 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1410 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1411 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1412 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1413 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1414 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1415 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1416 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1417 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1418 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1419 1419  
1420 -= 9.Packing Info =
1421 1421  
1020 +1. Trouble Shooting     
1021 +11. Downlink doesn’t work, how to solve it?
1422 1422  
1423 -**Package Includes**:
1023 +Please see this link for debug:
1424 1424  
1425 -* RS485-LN x 1
1426 -* Stick Antenna for LoRa RF part x 1
1427 -* 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]] 
1428 1428  
1429 -**Dimension and weight**:
1430 1430  
1431 -* Device Size: 13.5 x 7 x 3 cm
1432 -* Device Weight: 105g
1433 -* Package Size / pcs : 14.5 x 8 x 5 cm
1434 -* Weight / pcs : 170g
1435 1435  
1436 -= 10. FCC Caution for RS485LN-US915 =
1029 +1.
1030 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1437 1437  
1438 -(((
1439 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1440 -)))
1032 +It might about the channels mapping. Please see for detail.
1441 1441  
1442 -(((
1443 -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.
1444 -)))
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]]
1445 1445  
1446 -(((
1447 -
1448 -)))
1449 1449  
1450 -(((
1451 -**IMPORTANT NOTE:**
1452 -)))
1453 1453  
1454 -(((
1455 -**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:
1456 -)))
1038 +1. Order Info
1457 1457  
1458 -(((
1459 -—Reorient or relocate the receiving antenna.
1460 -)))
1040 +**Part Number: RS485-BL-XXX**
1461 1461  
1462 -(((
1463 -—Increase the separation between the equipment and receiver.
1464 -)))
1042 +**XXX:**
1465 1465  
1466 -(((
1467 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1468 -)))
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
1469 1469  
1470 -(((
1471 -—Consult the dealer or an experienced radio/TV technician for help.
1472 -)))
1055 +1. Packing Info
1473 1473  
1474 -(((
1475 -
1476 -)))
1057 +**Package Includes**:
1477 1477  
1478 -(((
1479 -**FCC Radiation Exposure Statement:**
1480 -)))
1059 +* RS485-BL x 1
1060 +* Stick Antenna for LoRa RF part x 1
1061 +* Program cable x 1
1481 1481  
1482 -(((
1483 -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.
1484 -)))
1063 +**Dimension and weight**:
1485 1485  
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
1486 1486  
1487 -= 11. Support =
1070 +1. Support
1488 1488  
1489 -* (((
1490 -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.
1491 -)))
1492 -* (((
1493 -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]].
1494 -)))
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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