Last modified by Xiaoling on 2025/04/23 15:56
<
From version < 59.8 >
edited by Xiaoling
on 2022/06/06 14:21
To version < 38.3 >
edited by Xiaoling
on 2022/06/02 16:10
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -6,18 +6,12 @@
6 6  **RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 -
10 -
11 11  **Table of Contents:**
12 12  
13 -{{toc/}}
14 14  
15 15  
16 16  
17 17  
18 -
19 -
20 -
21 21  = 1.Introduction =
22 22  
23 23  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
... ... @@ -24,33 +24,23 @@
24 24  
25 25  (((
26 26  (((
27 -(((
28 28  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
29 29  )))
30 -)))
31 31  
32 32  (((
33 -(((
34 34  RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
35 35  )))
36 -)))
37 37  
38 38  (((
39 -(((
40 40  (% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
41 41  )))
42 -)))
43 43  
44 44  (((
45 -(((
46 46  (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
47 -)))
48 48  
49 -(((
50 50  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
51 51  )))
52 52  )))
53 -)))
54 54  
55 55  [[image:1653267211009-519.png||height="419" width="724"]]
56 56  
... ... @@ -90,10 +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  )))
... ... @@ -315,8 +315,6 @@
315 315  )))
316 316  )))
317 317  
318 -
319 -
320 320  === 3.3.2 Configure sensors ===
321 321  
322 322  (((
... ... @@ -325,23 +325,16 @@
325 325  )))
326 326  )))
327 327  
328 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
329 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
330 -|AT+CFGDEV|(% style="width:110px" %)(((
331 -(((
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" %)(((
332 332  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
333 -)))
334 334  
335 -(((
336 336  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
337 -)))
338 338  
339 -(((
340 340  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
341 -)))
342 -)))|(% 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
343 343  
344 -
345 345  === 3.3.3 Configure read commands for each sampling ===
346 346  
347 347  (((
... ... @@ -387,8 +387,8 @@
387 387  
388 388  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
389 389  
390 -(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
391 -|(% style="width:510px" %)(((
349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350 +|(% style="width:722px" %)(((
392 392  **AT+DATACUTx=a,b,c**
393 393  
394 394  * **a: length for the return of AT+COMMAND**
... ... @@ -457,7 +457,6 @@
457 457  
458 458  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
459 459  
460 -
461 461  1. PAYVER: Defined by AT+PAYVER
462 462  1. PAYLOAD COUNT: Total how many uplinks of this sampling.
463 463  1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
... ... @@ -512,986 +512,641 @@
512 512  Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
513 513  
514 514  
515 -== 3.4 Uplink Payload ==
473 +1.
474 +11. Uplink Payload
516 516  
476 +|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
477 +|Value|(((
478 +Battery(mV)
517 517  
518 -[[image:image-20220606110929-1.png]]
480 +&
519 519  
482 +Interrupt _Flag
483 +)))|(((
484 +PAYLOAD_VER
485 +
486 +
487 +)))|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 +
520 520  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
521 521  
522 522  
523 -== 3.5 Configure RS485-BL via AT or Downlink ==
492 +function Decoder(bytes, port) {
524 524  
525 -(((
526 -User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
527 -)))
494 +~/~/Payload Formats of RS485-BL Deceive
528 528  
529 -(((
496 +return {
497 +
498 + ~/~/Battery,units:V
499 +
500 + BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
501 +
502 + ~/~/GPIO_EXTI 
503 +
504 + EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
505 +
506 + ~/~/payload of version
507 +
508 + Pay_ver:bytes[2],
509 +
510 + };
511 +
512 + }
513 +
514 +
515 +
516 +
517 +
518 +
519 +
520 +TTN V3 uplink screen shot.
521 +
522 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
523 +
524 +1.
525 +11. Configure RS485-BL via AT or Downlink
526 +
527 +User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
528 +
530 530  There are two kinds of Commands:
531 -)))
532 532  
533 -* (((
534 -(% 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]]
535 -)))
531 +* **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: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
536 536  
537 -* (((
538 -(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
539 -)))
533 +* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
540 540  
541 -(((
542 -
543 -)))
535 +1.
536 +11.
537 +111. Common Commands:
544 544  
539 +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: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
545 545  
546 -=== 3.5.1 Common Commands ===
547 547  
548 -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]]
542 +1.
543 +11.
544 +111. Sensor related commands:
549 549  
546 +==== Choose Device Type (RS485 or TTL) ====
550 550  
551 -=== 3.5.2 Sensor related commands ===
548 +RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
552 552  
553 -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.
550 +* AT Command
554 554  
555 -[[image:image-20220602163333-5.png||height="263" width="1160"]]
552 +**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 -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)
554 +**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  
560 -=== 3.5.3 Sensor related commands ===
557 +* Downlink Payload
561 561  
559 +**0A aa**     à same as AT+MOD=aa
562 562  
563 563  
564 564  
565 -==== **RS485 Debug Command** ====
563 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
566 566  
567 -(((
568 -This command is used to configure the RS485 devices; they won’t be used during sampling.
569 -)))
565 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
570 570  
571 -* (((
572 -**AT Command**
573 -)))
567 +* AT Command
574 574  
575 -(% class="box infomessage" %)
576 -(((
577 -(((
578 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
579 -)))
580 -)))
569 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
581 581  
582 -(((
583 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
584 -)))
571 +m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
585 585  
586 -* (((
587 -**Downlink Payload**
588 -)))
589 589  
590 -(((
574 +
575 +* Downlink Payload
576 +
591 591  Format: A8 MM NN XX XX XX XX YY
592 -)))
593 593  
594 -(((
595 595  Where:
596 -)))
597 597  
598 -* (((
599 -MM: 1: add CRC-16/MODBUS ; 0: no CRC
600 -)))
601 -* (((
602 -NN: The length of RS485 command
603 -)))
604 -* (((
605 -XX XX XX XX: RS485 command total NN bytes
606 -)))
607 -* (((
608 -(((
609 -YY: How many bytes will be uplink from the return of this RS485 command,
610 -)))
581 +* MM: 1: add CRC-16/MODBUS ; 0: no CRC
582 +* NN: The length of RS485 command
583 +* XX XX XX XX: RS485 command total NN bytes
584 +* 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
611 611  
612 -* (((
613 -if YY=0, RS485-LN will execute the downlink command without uplink;
614 -)))
615 -* (((
616 -if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
617 -)))
618 -* (((
619 -if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
620 -)))
621 -)))
586 +**Example 1:**
622 622  
623 -(((
624 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
625 -)))
626 -
627 -(((
628 628  To connect a Modbus Alarm with below commands.
629 -)))
630 630  
631 -* (((
632 -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.
633 -)))
590 +* 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.
634 634  
635 -* (((
636 -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.
637 -)))
592 +* 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.
638 638  
639 -(((
640 640  So if user want to use downlink command to control to RS485 Alarm, he can use:
641 -)))
642 642  
643 -(((
644 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
645 -)))
596 +**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
646 646  
647 -(((
648 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
649 -)))
598 +**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
650 650  
651 -(((
652 652  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.
653 -)))
654 654  
655 -(((
656 -
657 -)))
658 658  
659 -(((
660 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
661 -)))
603 +**Example 2:**
662 662  
663 -(((
664 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
665 -)))
605 +Check TTL Sensor return:
666 666  
667 -(((
668 -
669 -)))
607 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
670 670  
671 -(((
672 -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:
673 -)))
674 674  
675 -(((
676 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
677 -)))
678 678  
679 -(((
680 - [[image:1654159460680-153.png]]
681 -)))
682 682  
612 +==== Set Payload version ====
683 683  
684 -
685 -
686 -==== **Set Payload version** ====
687 -
688 -(((
689 689  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.
690 -)))
691 691  
692 -* (((
693 -**AT Command:**
694 -)))
616 +* AT Command:
695 695  
696 -(% class="box infomessage" %)
697 -(((
698 -(((
699 -**AT+PAYVER: Set PAYVER field = 1**
700 -)))
701 -)))
618 +AT+PAYVER: Set PAYVER field = 1
702 702  
703 -* (((
704 -**Downlink Payload:**
705 -)))
706 706  
707 -(((
708 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
709 -)))
621 +* Downlink Payload:
710 710  
711 -(((
712 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
713 -)))
623 +0xAE 01   à Set PAYVER field =  0x01
714 714  
625 +0xAE 0F   à Set PAYVER field =  0x0F
715 715  
716 716  
628 +==== Set RS485 Sampling Commands ====
717 717  
718 -==== **Set RS485 Sampling Commands** ====
630 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
719 719  
720 -(((
721 -AT+COMMANDx or AT+DATACUTx
722 -)))
632 +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]].
723 723  
724 -(((
725 -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"]].
726 -)))
727 727  
728 -(((
729 -
730 -)))
635 +* AT Command:
731 731  
732 -* (((
733 -**AT Command:**
734 -)))
637 +AT+COMMANDx: Configure RS485 read command to sensor.
735 735  
736 -(% class="box infomessage" %)
737 -(((
738 -(((
739 -**AT+COMMANDx: Configure RS485 read command to sensor.**
740 -)))
741 -)))
639 +AT+DATACUTx: Configure how to handle return from RS485 devices.
742 742  
743 -(% class="box infomessage" %)
744 -(((
745 -(((
746 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
747 -)))
748 -)))
641 +AT+SEARCHx: Configure search command
749 749  
750 -(((
751 -
752 -)))
753 753  
754 -* (((
755 -**Downlink Payload:**
756 -)))
644 +* Downlink Payload:
757 757  
758 -(((
759 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
760 -)))
646 +0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
761 761  
762 -(((
763 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
764 -)))
648 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
765 765  
766 -(((
767 767  Format: AF MM NN LL XX XX XX XX YY
768 -)))
769 769  
770 -(((
771 771  Where:
772 -)))
773 773  
774 -* (((
775 -MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
776 -)))
777 -* (((
778 -NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
779 -)))
780 -* (((
781 -LL:  The length of AT+COMMAND or AT+DATACUT command
782 -)))
783 -* (((
784 -XX XX XX XX: AT+COMMAND or AT+DATACUT command
785 -)))
786 -* (((
787 -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.
788 -)))
654 +* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
655 +* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
656 +* LL: The length of AT+COMMAND or AT+DATACUT command
657 +* XX XX XX XX: AT+COMMAND or AT+DATACUT command
658 +* 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.
789 789  
790 -(((
791 -**Example:**
792 -)))
660 +Example:
793 793  
794 -(((
795 -(% 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
796 -)))
662 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
797 797  
798 -(((
799 -(% 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**
800 -)))
664 +**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
801 801  
802 -(((
803 -(% 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**
804 -)))
666 +**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
805 805  
806 806  
669 +0xAB downlink command can be used for set AT+SEARCHx
807 807  
671 +Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
808 808  
809 -==== **Fast command to handle MODBUS device** ====
673 +* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
674 +* 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
810 810  
811 -(((
812 -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]].
813 -)))
676 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
814 814  
815 -(((
816 -This command is valid since v1.3 firmware version
817 -)))
818 818  
819 -(((
820 -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.
821 -)))
679 +==== Fast command to handle MODBUS device ====
822 822  
823 -(((
824 -
825 -)))
681 +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]].
826 826  
827 -(((
828 -**Example:**
829 -)))
683 +This command is valid since v1.3 firmware version
830 830  
831 -* (((
832 -AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
833 -)))
834 -* (((
835 -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.
836 -)))
837 -* (((
838 -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.
839 -)))
840 840  
841 -[[image:image-20220602165351-6.png]]
686 +AT+MBFUN has only two value:
842 842  
843 -[[image:image-20220602165351-7.png]]
688 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
844 844  
690 +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.
845 845  
692 +* AT+MBFUN=0: Disable Modbus fast reading.
846 846  
694 +Example:
847 847  
848 -==== **RS485 command timeout** ====
696 +* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
697 +* 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.
698 +* 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.
849 849  
850 -(((
851 -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.
852 -)))
700 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
853 853  
854 -(((
855 -Default value: 0, range:  0 ~~ 65 seconds
856 -)))
857 857  
858 -* (((
859 -**AT Command:**
860 -)))
703 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
861 861  
862 -(% class="box infomessage" %)
863 -(((
864 -(((
865 -**AT+CMDDLaa=hex(bb cc)*1000**
866 -)))
867 -)))
868 868  
869 -(((
870 -**Example:**
871 -)))
706 +* Downlink Commands:
872 872  
873 -(((
874 -**AT+CMDDL1=1000** to send the open time to 1000ms
875 -)))
708 +A9 aa -à Same as AT+MBFUN=aa
876 876  
877 -(((
878 -
879 -)))
880 880  
881 -* (((
882 -**Downlink Payload:**
883 -)))
711 +==== RS485 command timeout ====
884 884  
885 -(((
886 -**0x AA aa bb cc**
887 -)))
713 +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.
888 888  
889 -(((
890 -Same as: AT+CMDDLaa=hex(bb cc)*1000
891 -)))
715 +Default value: 0, range:  0 ~~ 5 seconds
892 892  
893 -(((
894 - **Example:**
895 -)))
896 896  
897 -(((
898 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
899 -)))
718 +* AT Command:
900 900  
720 +AT+CMDDLaa=hex(bb cc)
901 901  
722 +Example:
902 902  
724 +**AT+CMDDL1=1000** to send the open time to 1000ms
903 903  
904 -==== **Uplink payload mode** ====
905 905  
906 -(((
907 -Define to use one uplink or multiple uplinks for the sampling.
908 -)))
727 +* Downlink Payload:
909 909  
910 -(((
911 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
912 -)))
729 +0x AA aa bb cc
913 913  
914 -* (((
915 -**AT Command:**
916 -)))
731 +Same as: AT+CMDDLaa=hex(bb cc)
917 917  
918 -(% class="box infomessage" %)
919 -(((
920 -(((
921 -**AT+DATAUP=0**
922 -)))
923 -)))
733 + Example:
924 924  
925 -(% class="box infomessage" %)
926 -(((
927 -(((
928 -**AT+DATAUP=1**
929 -)))
930 -)))
735 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
931 931  
932 -(((
933 -
934 -)))
935 935  
936 -* (((
937 -**Downlink Payload:**
938 -)))
738 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
939 939  
940 -(((
941 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
942 -)))
740 +Define to use one uplink or multiple uplinks for the sampling.
943 943  
944 -(((
945 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
946 -)))
742 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
947 947  
744 +* AT Command:
948 948  
746 +AT+DATAUP=0
949 949  
748 +AT+DATAUP=1
950 950  
951 -==== **Manually trigger an Uplink** ====
952 952  
953 -(((
954 -Ask device to send an uplink immediately.
955 -)))
751 +* Downlink Payload:
956 956  
957 -* (((
958 -**AT Command:**
959 -)))
753 +0xAD 00   à Same as AT+DATAUP=0
960 960  
961 -(((
962 -No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
963 -)))
755 +0xAD 01   à Same as AT+DATAUP=1
964 964  
965 -(((
966 -
967 -)))
968 968  
969 -* (((
970 -**Downlink Payload:**
971 -)))
758 +==== Manually trigger an Uplink ====
972 972  
973 -(((
974 -**0x08 FF**, RS485-LN will immediately send an uplink.
975 -)))
760 +Ask device to send an uplink immediately.
976 976  
762 +* Downlink Payload:
977 977  
764 +0x08 FF, RS485-BL will immediately send an uplink.
978 978  
979 979  
980 -==== **Clear RS485 Command** ====
767 +==== Clear RS485 Command ====
981 981  
982 -(((
983 983  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
984 -)))
985 985  
986 -* (((
987 -**AT Command:**
988 -)))
989 989  
990 -(((
772 +* AT Command:
773 +
991 991  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
992 -)))
993 993  
994 -(((
995 995  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
996 -)))
997 997  
998 -(((
999 999  Example screen shot after clear all RS485 commands. 
1000 -)))
1001 1001  
1002 -(((
1003 -
1004 -)))
1005 1005  
1006 -(((
781 +
1007 1007  The uplink screen shot is:
1008 -)))
1009 1009  
1010 -[[image:1654160691922-496.png]]
784 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1011 1011  
1012 1012  
1013 -* (((
1014 -**Downlink Payload:**
1015 -)))
787 +* Downlink Payload:
1016 1016  
1017 -(((
1018 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
1019 -)))
789 +0x09 aa bb same as AT+CMDEAR=aa,bb
1020 1020  
1021 1021  
792 +==== Set Serial Communication Parameters ====
1022 1022  
1023 -
1024 -==== **Set Serial Communication Parameters** ====
1025 -
1026 -(((
1027 1027  Set the Rs485 serial communication parameters:
1028 -)))
1029 1029  
1030 -* (((
1031 -**AT Command:**
1032 -)))
796 +* AT Command:
1033 1033  
1034 -(((
1035 1035  Set Baud Rate:
1036 -)))
1037 1037  
1038 -(% class="box infomessage" %)
1039 -(((
1040 -(((
1041 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1042 -)))
1043 -)))
800 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1044 1044  
1045 -(((
1046 -Set UART Parity
1047 -)))
1048 1048  
1049 -(% class="box infomessage" %)
1050 -(((
1051 -(((
1052 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1053 -)))
1054 -)))
803 +Set UART parity
1055 1055  
1056 -(((
805 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
806 +
807 +
1057 1057  Set STOPBIT
1058 -)))
1059 1059  
1060 -(% class="box infomessage" %)
1061 -(((
1062 -(((
1063 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1064 -)))
1065 -)))
810 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1066 1066  
1067 -(((
1068 -
1069 -)))
1070 1070  
1071 -* (((
1072 -**Downlink Payload:**
1073 -)))
813 +* Downlink Payload:
1074 1074  
1075 -(((
1076 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1077 -)))
815 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1078 1078  
1079 -(((
1080 -**Example:**
1081 -)))
817 +Example:
1082 1082  
1083 -* (((
1084 -A7 01 00 60   same as AT+BAUDR=9600
1085 -)))
1086 -* (((
1087 -A7 01 04 80  same as AT+BAUDR=115200
1088 -)))
819 +* A7 01 00 60   same as AT+BAUDR=9600
820 +* A7 01 04 80  same as AT+BAUDR=115200
1089 1089  
1090 -(((
1091 1091  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1092 -)))
1093 1093  
1094 -(((
1095 1095  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1096 -)))
1097 1097  
1098 1098  
827 +==== Control output power duration ====
1099 1099  
829 +User can set the output power duration before each sampling.
1100 1100  
1101 -== 3.6 Listening mode for RS485 network ==
831 +* AT Command:
1102 1102  
1103 -(((
1104 -This feature support since firmware v1.4
1105 -)))
833 +Example:
1106 1106  
1107 -(((
1108 -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.
1109 -)))
835 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1110 1110  
1111 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
837 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1112 1112  
1113 -(((
1114 -To enable the listening mode, use can run the command AT+RXMODE.
1115 -)))
1116 1116  
1117 -(((
1118 -
1119 -)))
840 +* LoRaWAN Downlink Command:
1120 1120  
1121 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1122 -|=(% style="width: 100px;" %)(((
1123 -**Command example**
1124 -)))|=(% style="width: 400px;" %)(((
1125 -**Function**
1126 -)))
1127 -|(% style="width:100px" %)(((
1128 -AT+RXMODE=1,10
1129 -)))|(% style="width:400px" %)(((
1130 -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.
1131 -)))
1132 -|(% style="width:100px" %)(((
1133 -AT+RXMODE=2,500
1134 -)))|(% style="width:400px" %)(((
1135 -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
1136 -)))
1137 -|(% style="width:100px" %)(((
1138 -AT+RXMODE=0,0
1139 -)))|(% style="width:400px" %)(((
1140 -Disable listening mode. This is the default settings.
1141 -)))
1142 -|(% style="width:100px" %)(((
1143 -
1144 -)))|(% style="width:400px" %)(((
1145 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1146 -)))
842 +07 01 aa bb  Same as AT+5VT=(aa bb)
1147 1147  
1148 -(((
1149 -**Downlink Command:**
1150 -)))
844 +07 02 aa bb  Same as AT+3V3T=(aa bb)
1151 1151  
1152 -(((
1153 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1154 -)))
1155 1155  
1156 -(((
1157 -
1158 -)))
1159 1159  
1160 -(((
1161 -**Example**:
1162 -)))
1163 1163  
1164 -(((
1165 -The RS485-LN is set to AT+RXMODE=2,1000
1166 -)))
849 +1.
850 +11. Buttons
1167 1167  
1168 -(((
1169 -There is a two Modbus commands in the RS485 network as below:
1170 -)))
852 +|**Button**|**Feature**
853 +|**RST**|Reboot RS485-BL
1171 1171  
1172 -(((
1173 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1174 -)))
855 +1.
856 +11. +3V3 Output
1175 1175  
1176 -(((
1177 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1178 -)))
858 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1179 1179  
1180 -(((
1181 -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
1182 -)))
860 +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. 
1183 1183  
1184 -(((
1185 -[[image:image-20220602171200-9.png]]
1186 -)))
1187 1187  
1188 -(((
1189 -
1190 -)))
863 +The +3V3 output time can be controlled by AT Command.
1191 1191  
1192 -(((
1193 -(((
1194 -(% 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.
1195 -)))
1196 -)))
865 +**AT+3V3T=1000**
1197 1197  
867 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1198 1198  
1199 -== 3.7 Buttons ==
1200 1200  
870 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1201 1201  
1202 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1203 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1204 -|(% 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**
1205 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1206 -|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1207 1207  
1208 -== 3.8 LEDs ==
873 +1.
874 +11. +5V Output
1209 1209  
876 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1210 1210  
1211 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1212 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1213 -|**PWR**|Always on if there is power
1214 -|**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.
878 +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. 
1215 1215  
1216 -= 4. Case Study =
1217 1217  
1218 -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]]
881 +The 5V output time can be controlled by AT Command.
1219 1219  
883 +**AT+5VT=1000**
1220 1220  
1221 -= 5. Use AT Command =
885 +Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1222 1222  
1223 -== 5.1 Access AT Command ==
1224 1224  
1225 -(((
1226 -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.
1227 -)))
888 +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.
1228 1228  
1229 -[[image:1654162355560-817.png]]
1230 1230  
1231 1231  
1232 -(((
1233 -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:
1234 -)))
1235 1235  
1236 -[[image:1654162368066-342.png]]
893 +1.
894 +11. LEDs
1237 1237  
896 +|**LEDs**|**Feature**
897 +|**LED1**|Blink when device transmit a packet.
1238 1238  
1239 -(((
1240 -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/]]
899 +1.
900 +11. Switch Jumper
901 +
902 +|**Switch Jumper**|**Feature**
903 +|**SW1**|(((
904 +ISP position: Upgrade firmware via UART
905 +
906 +Flash position: Configure device, check running status.
1241 1241  )))
908 +|**SW2**|(((
909 +5V position: set to compatible with 5v I/O.
1242 1242  
911 +3.3v position: set to compatible with 3.3v I/O.,
912 +)))
1243 1243  
914 ++3.3V: is always ON
1244 1244  
1245 -== 5.2 Common AT Command Sequence ==
916 ++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1246 1246  
1247 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
918 +1. Case Study
1248 1248  
1249 -If device has not joined network yet:
920 +User can check this URL for some case studies.
1250 1250  
1251 -(% class="box infomessage" %)
1252 -(((
1253 -**AT+FDR**
1254 -)))
922 +[[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]]
1255 1255  
1256 -(% class="box infomessage" %)
1257 -(((
1258 -**AT+NJM=0**
1259 -)))
1260 1260  
1261 -(% class="box infomessage" %)
1262 -(((
1263 -**ATZ**
1264 -)))
1265 1265  
1266 1266  
1267 -(((
1268 -If device already joined network:
1269 -)))
927 +1. Use AT Command
928 +11. Access AT Command
1270 1270  
1271 -(% class="box infomessage" %)
1272 -(((
1273 -**AT+NJM=0**
1274 -)))
930 +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.
1275 1275  
1276 -(% class="box infomessage" %)
1277 -(((
1278 -**ATZ**
1279 -)))
932 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1280 1280  
1281 1281  
1282 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
935 +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:
1283 1283  
937 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1284 1284  
1285 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1286 1286  
1287 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1288 1288  
1289 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
941 +More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1290 1290  
1291 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1292 1292  
1293 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1294 1294  
1295 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
945 +1.
946 +11. Common AT Command Sequence
947 +111. Multi-channel ABP mode (Use with SX1301/LG308)
1296 1296  
1297 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
949 +If device has not joined network yet:
1298 1298  
1299 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
951 +AT+FDR
1300 1300  
1301 -(% 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.
953 +AT+NJM=0
1302 1302  
1303 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
955 +ATZ
1304 1304  
1305 1305  
1306 -(% style="color:red" %)**Note:**
958 +If device already joined network:
1307 1307  
1308 -(((
1309 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1310 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1311 -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.
1312 -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
1313 -)))
960 +AT+NJM=0
1314 1314  
1315 -[[image:1654162478620-421.png]]
962 +ATZ
1316 1316  
964 +1.
965 +11.
966 +111. Single-channel ABP mode (Use with LG01/LG02)
1317 1317  
1318 -= 6. FAQ =
968 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1319 1319  
1320 -== 6.1 How to upgrade the image? ==
970 +AT+NJM=0 Set to ABP mode
1321 1321  
1322 -(((
1323 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1324 -)))
972 +AT+ADR=0 Set the Adaptive Data Rate Off
1325 1325  
1326 -* (((
1327 -Support new features
1328 -)))
1329 -* (((
1330 -For bug fix
1331 -)))
1332 -* (((
1333 -Change LoRaWAN bands.
1334 -)))
974 +AT+DR=5  Set Data Rate
1335 1335  
1336 -(((
1337 -Below shows the hardware connection for how to upload an image to RS485-LN:
1338 -)))
976 +AT+TDC=60000  Set transmit interval to 60 seconds
1339 1339  
1340 -[[image:1654162535040-878.png]]
978 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1341 1341  
1342 -(((
1343 -**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]].
1344 -)))
980 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1345 1345  
1346 -(((
1347 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1348 -)))
982 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1349 1349  
1350 -(((
1351 -**Step3: **Open flashloader; choose the correct COM port to update.
1352 -)))
984 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1353 1353  
1354 -(((
1355 -(((
1356 -(((
1357 -(% 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.
1358 -)))
1359 -)))
1360 -)))
986 +ATZ          Reset MCU
1361 1361  
988 +**Note:**
1362 1362  
1363 -[[image:image-20220602175818-12.png]]
990 +1. Make sure the device is set to ABP mode in the IoT Server.
991 +1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
992 +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.
993 +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
1364 1364  
995 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1365 1365  
1366 -[[image:image-20220602175848-13.png]]
1367 1367  
998 +1. FAQ
999 +11. How to upgrade the image?
1368 1368  
1369 -[[image:image-20220602175912-14.png]]
1001 +The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1370 1370  
1003 +* Support new features
1004 +* For bug fix
1005 +* Change LoRaWAN bands.
1371 1371  
1372 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1007 +Below shows the hardware connection for how to upload an image to RS485-BL:
1373 1373  
1374 -[[image:image-20220602175638-10.png]]
1009 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1375 1375  
1011 +**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]].
1376 1376  
1377 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
1013 +**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1378 1378  
1379 -User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1015 +**Step3: **Open flashloader; choose the correct COM port to update.
1380 1380  
1381 1381  
1382 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1018 +|(((
1019 +HOLD PRO then press the RST button, SYS will be ON, then click next
1020 +)))
1383 1383  
1384 -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"]].
1022 +|(((
1023 +Board detected
1024 +)))
1385 1385  
1026 +|(((
1027 +
1028 +)))
1386 1386  
1387 -== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1030 +[[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]]
1388 1388  
1389 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1390 1390  
1391 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1392 1392  
1034 +[[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]]
1393 1393  
1394 -= 7. Trouble Shooting =
1395 1395  
1396 -== 7.1 Downlink doesn’t work, how to solve it? ==
1037 +[[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]]
1397 1397  
1398 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1399 1399  
1040 +1.
1041 +11. How to change the LoRa Frequency Bands/Region?
1400 1400  
1401 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1043 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1402 1402  
1403 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1404 1404  
1405 1405  
1406 -= 8. Order Info =
1047 +1.
1048 +11. How many RS485-Slave can RS485-BL connects?
1407 1407  
1408 -(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1050 +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]].
1409 1409  
1410 -(% style="color:blue" %)**XXX:**
1411 1411  
1412 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1413 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1414 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1415 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1416 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1417 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1418 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1419 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1420 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1421 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1422 1422  
1423 -= 9.Packing Info =
1424 1424  
1055 +1. Trouble Shooting     
1056 +11. Downlink doesn’t work, how to solve it?
1425 1425  
1426 -**Package Includes**:
1058 +Please see this link for debug:
1427 1427  
1428 -* RS485-LN x 1
1429 -* Stick Antenna for LoRa RF part x 1
1430 -* Program cable x 1
1060 +[[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]] 
1431 1431  
1432 -**Dimension and weight**:
1433 1433  
1434 -* Device Size: 13.5 x 7 x 3 cm
1435 -* Device Weight: 105g
1436 -* Package Size / pcs : 14.5 x 8 x 5 cm
1437 -* Weight / pcs : 170g
1438 1438  
1439 -= 10. FCC Caution for RS485LN-US915 =
1064 +1.
1065 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1440 1440  
1441 -(((
1442 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1443 -)))
1067 +It might about the channels mapping. Please see for detail.
1444 1444  
1445 -(((
1446 -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.
1447 -)))
1069 +[[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]]
1448 1448  
1449 -(((
1450 -
1451 -)))
1452 1452  
1453 -(((
1454 -**IMPORTANT NOTE:**
1455 -)))
1456 1456  
1457 -(((
1458 -**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:
1459 -)))
1073 +1. Order Info
1460 1460  
1461 -(((
1462 -—Reorient or relocate the receiving antenna.
1463 -)))
1075 +**Part Number: RS485-BL-XXX**
1464 1464  
1465 -(((
1466 -—Increase the separation between the equipment and receiver.
1467 -)))
1077 +**XXX:**
1468 1468  
1469 -(((
1470 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1471 -)))
1079 +* **EU433**: frequency bands EU433
1080 +* **EU868**: frequency bands EU868
1081 +* **KR920**: frequency bands KR920
1082 +* **CN470**: frequency bands CN470
1083 +* **AS923**: frequency bands AS923
1084 +* **AU915**: frequency bands AU915
1085 +* **US915**: frequency bands US915
1086 +* **IN865**: frequency bands IN865
1087 +* **RU864**: frequency bands RU864
1088 +* **KZ865: **frequency bands KZ865
1472 1472  
1473 -(((
1474 -—Consult the dealer or an experienced radio/TV technician for help.
1475 -)))
1090 +1. Packing Info
1476 1476  
1477 -(((
1478 -
1479 -)))
1092 +**Package Includes**:
1480 1480  
1481 -(((
1482 -**FCC Radiation Exposure Statement:**
1483 -)))
1094 +* RS485-BL x 1
1095 +* Stick Antenna for LoRa RF part x 1
1096 +* Program cable x 1
1484 1484  
1485 -(((
1486 -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.
1487 -)))
1098 +**Dimension and weight**:
1488 1488  
1100 +* Device Size: 13.5 x 7 x 3 cm
1101 +* Device Weight: 105g
1102 +* Package Size / pcs : 14.5 x 8 x 5 cm
1103 +* Weight / pcs : 170g
1489 1489  
1490 -= 11. Support =
1105 +1. Support
1491 1491  
1492 -* (((
1493 -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.
1494 -)))
1495 -* (((
1496 -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]].
1497 -)))
1107 +* 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.
1108 +* 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
1109 +
1110 +[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1654158783574-851.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -40.6 KB
Content
1654159460680-153.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -24.9 KB
Content
1654160691922-496.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -109.3 KB
Content
1654162355560-817.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -670.0 KB
Content
1654162368066-342.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -192.9 KB
Content
1654162478620-421.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -158.9 KB
Content
1654162535040-878.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -670.0 KB
Content
image-20220602163333-5.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -48.2 KB
Content
image-20220602165351-6.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -10.6 KB
Content
image-20220602165351-7.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -19.3 KB
Content
image-20220602171200-8.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -276.1 KB
Content
image-20220602171200-9.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -10.0 KB
Content
image-20220602175638-10.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -85.5 KB
Content
image-20220602175743-11.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -85.5 KB
Content
image-20220602175818-12.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -102.5 KB
Content
image-20220602175848-13.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -250.9 KB
Content
image-20220602175912-14.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -176.1 KB
Content
image-20220606110929-1.png
Author
... ... @@ -1,1 +1,0 @@
1 -XWiki.Xiaoling
Size
... ... @@ -1,1 +1,0 @@
1 -13.9 KB
Content

Applications

Navigation

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