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on 2022/06/14 11:14
To version < 40.1 >
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Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -RS485-LN – RS485 to LoRaWAN Converter User Manual
1 +RS485-LN – RS485 to LoRaWAN Converter
Content
... ... @@ -3,20 +3,15 @@
3 3  
4 4  
5 5  
6 +**RS485-LN – RS485 to LoRaWAN Converter User Manual**
6 6  
7 7  
8 -
9 -
10 10  **Table of Contents:**
11 11  
12 -{{toc/}}
13 13  
14 14  
15 15  
16 16  
17 -
18 -
19 -
20 20  = 1.Introduction =
21 21  
22 22  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
... ... @@ -23,37 +23,23 @@
23 23  
24 24  (((
25 25  (((
26 -(((
27 -
28 -
29 29  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
30 30  )))
31 -)))
32 32  
33 33  (((
34 -(((
35 35  RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
36 36  )))
37 -)))
38 38  
39 39  (((
40 -(((
41 41  (% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
42 42  )))
43 -)))
44 44  
45 45  (((
46 -(((
47 47  (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
48 -)))
49 49  
50 -(((
51 51  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
52 -
53 -
54 54  )))
55 55  )))
56 -)))
57 57  
58 58  [[image:1653267211009-519.png||height="419" width="724"]]
59 59  
... ... @@ -69,13 +69,11 @@
69 69  ** Idle: 32mA@12v
70 70  ** 20dB Transmit: 65mA@12v
71 71  
72 -
73 73  **Interface for Model:**
74 74  
75 75  * RS485
76 76  * Power Input 7~~ 24V DC. 
77 77  
78 -
79 79  **LoRa Spec:**
80 80  
81 81  * Frequency Range:
... ... @@ -95,10 +95,8 @@
95 95  * Preamble detection.
96 96  * 127 dB Dynamic Range RSSI.
97 97  * Automatic RF Sense and CAD with ultra-fast AFC.
98 -* Packet engine up to 256 bytes with CRC
77 +* Packet engine up to 256 bytes with CRC.
99 99  
100 -
101 -
102 102  == 1.3 Features ==
103 103  
104 104  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -110,8 +110,6 @@
110 110  * Support Modbus protocol
111 111  * Support Interrupt uplink (Since hardware version v1.2)
112 112  
113 -
114 -
115 115  == 1.4 Applications ==
116 116  
117 117  * Smart Buildings & Home Automation
... ... @@ -121,8 +121,6 @@
121 121  * Smart Cities
122 122  * Smart Factory
123 123  
124 -
125 -
126 126  == 1.5 Firmware Change log ==
127 127  
128 128  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -132,13 +132,9 @@
132 132  
133 133  (((
134 134  (((
135 -(((
136 136  v1.2: Add External Interrupt Pin.
137 -)))
138 138  
139 -(((
140 140  v1.0: Release
141 -)))
142 142  
143 143  
144 144  )))
... ... @@ -166,9 +166,7 @@
166 166  == 3.1 How it works? ==
167 167  
168 168  (((
169 -(((
170 170  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.
171 -)))
172 172  
173 173  
174 174  )))
... ... @@ -191,13 +191,12 @@
191 191  
192 192  [[image:1653268227651-549.png||height="592" width="720"]]
193 193  
194 -
195 195  (((
196 -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:
197 197  )))
198 198  
199 199  (((
200 -(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
166 +**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
201 201  )))
202 202  
203 203  (((
... ... @@ -207,7 +207,6 @@
207 207  
208 208  [[image:1652953462722-299.png]]
209 209  
210 -
211 211  (((
212 212  (((
213 213  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
... ... @@ -214,7 +214,7 @@
214 214  )))
215 215  
216 216  (((
217 -**Add APP EUI in the application.**
182 +Add APP EUI in the application.
218 218  )))
219 219  )))
220 220  
... ... @@ -230,15 +230,13 @@
230 230  
231 231  [[image:1652953542269-423.png||height="710" width="723"]]
232 232  
198 +Add APP KEY and DEV EUI
233 233  
234 -
235 -**Add APP KEY and DEV EUI**
236 -
237 237  [[image:1652953553383-907.png||height="514" width="724"]]
238 238  
239 239  
240 240  (((
241 -(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
204 +**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
242 242  )))
243 243  
244 244  [[image:1652953568895-172.png||height="232" width="724"]]
... ... @@ -248,15 +248,11 @@
248 248  
249 249  (((
250 250  (((
251 -(((
252 -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.
253 253  )))
254 -)))
255 255  
256 256  (((
257 -(((
258 258  (% 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
259 -)))
260 260  
261 261  
262 262  )))
... ... @@ -266,19 +266,19 @@
266 266  
267 267  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:
268 268  
269 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
270 -|=(% style="width: 110px;" %)(((
228 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
229 +|(% style="width:128px" %)(((
271 271  **AT Commands**
272 -)))|=(% style="width: 190px;" %)(((
231 +)))|(% style="width:305px" %)(((
273 273  **Description**
274 -)))|=(% style="width: 190px;" %)(((
233 +)))|(% style="width:346px" %)(((
275 275  **Example**
276 276  )))
277 -|(% style="width:110px" %)(((
236 +|(% style="width:128px" %)(((
278 278  AT+BAUDR
279 -)))|(% style="width:190px" %)(((
238 +)))|(% style="width:305px" %)(((
280 280  Set the baud rate (for RS485 connection). Default Value is: 9600.
281 -)))|(% style="width:190px" %)(((
240 +)))|(% style="width:346px" %)(((
282 282  (((
283 283  AT+BAUDR=9600
284 284  )))
... ... @@ -287,11 +287,11 @@
287 287  Options: (1200,2400,4800,14400,19200,115200)
288 288  )))
289 289  )))
290 -|(% style="width:110px" %)(((
249 +|(% style="width:128px" %)(((
291 291  AT+PARITY
292 -)))|(% style="width:190px" %)(((
251 +)))|(% style="width:305px" %)(((
293 293  Set UART parity (for RS485 connection)
294 -)))|(% style="width:190px" %)(((
253 +)))|(% style="width:346px" %)(((
295 295  (((
296 296  AT+PARITY=0
297 297  )))
... ... @@ -300,9 +300,9 @@
300 300  Option: 0: no parity, 1: odd parity, 2: even parity
301 301  )))
302 302  )))
303 -|(% style="width:110px" %)(((
262 +|(% style="width:128px" %)(((
304 304  AT+STOPBIT
305 -)))|(% style="width:190px" %)(((
264 +)))|(% style="width:305px" %)(((
306 306  (((
307 307  Set serial stopbit (for RS485 connection)
308 308  )))
... ... @@ -310,7 +310,7 @@
310 310  (((
311 311  
312 312  )))
313 -)))|(% style="width:190px" %)(((
272 +)))|(% style="width:346px" %)(((
314 314  (((
315 315  AT+STOPBIT=0 for 1bit
316 316  )))
... ... @@ -324,9 +324,6 @@
324 324  )))
325 325  )))
326 326  
327 -
328 -
329 -
330 330  === 3.3.2 Configure sensors ===
331 331  
332 332  (((
... ... @@ -335,21 +335,15 @@
335 335  )))
336 336  )))
337 337  
338 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
339 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
340 -|AT+CFGDEV|(% style="width:110px" %)(((
341 -(((
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" %)(((
342 342  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
343 -)))
344 344  
345 -(((
346 346  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
347 -)))
348 348  
349 -(((
350 350  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
351 -)))
352 -)))|(% 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
353 353  
354 354  === 3.3.3 Configure read commands for each sampling ===
355 355  
... ... @@ -396,8 +396,8 @@
396 396  
397 397  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
398 398  
399 -(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
400 -|(% style="width:510px" %)(((
349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350 +|(% style="width:722px" %)(((
401 401  **AT+DATACUTx=a,b,c**
402 402  
403 403  * **a: length for the return of AT+COMMAND**
... ... @@ -466,7 +466,6 @@
466 466  
467 467  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
468 468  
469 -
470 470  1. PAYVER: Defined by AT+PAYVER
471 471  1. PAYLOAD COUNT: Total how many uplinks of this sampling.
472 472  1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
... ... @@ -523,33 +523,33 @@
523 523  
524 524  == 3.4 Uplink Payload ==
525 525  
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)
526 526  
527 -[[image:image-20220606110929-1.png]]
480 +&
528 528  
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 +
529 529  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
530 530  
531 531  
532 532  == 3.5 Configure RS485-BL via AT or Downlink ==
533 533  
534 -(((
535 535  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
536 -)))
537 537  
538 -(((
539 539  There are two kinds of Commands:
540 -)))
541 541  
542 -* (((
543 -(% 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]]
544 -)))
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]]
545 545  
546 -* (((
547 -(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
548 -)))
500 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
549 549  
550 -(((
551 -
552 -)))
553 553  
554 554  
555 555  === 3.5.1 Common Commands ===
... ... @@ -557,950 +557,570 @@
557 557  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]]
558 558  
559 559  
560 -=== 3.5.2 Sensor related commands ===
509 +=== 3.5.2 Sensor related commands: ===
561 561  
562 -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) ====
563 563  
564 -[[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.
565 565  
566 -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
567 567  
517 +**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
568 568  
569 -=== 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.
570 570  
571 571  
522 +* Downlink Payload
572 572  
524 +**0A aa**     à same as AT+MOD=aa
573 573  
574 -==== **RS485 Debug Command** ====
575 575  
576 -(((
577 -This command is used to configure the RS485 devices; they won’t be used during sampling.
578 -)))
579 579  
580 -* (((
581 -**AT Command**
582 -)))
528 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
583 583  
584 -(% class="box infomessage" %)
585 -(((
586 -(((
587 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
588 -)))
589 -)))
530 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
590 590  
591 -(((
592 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
593 -)))
532 +* AT Command
594 594  
595 -* (((
596 -**Downlink Payload**
597 -)))
534 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
598 598  
599 -(((
536 +m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
537 +
538 +
539 +
540 +* Downlink Payload
541 +
600 600  Format: A8 MM NN XX XX XX XX YY
601 -)))
602 602  
603 -(((
604 604  Where:
605 -)))
606 606  
607 -* (((
608 -MM: 1: add CRC-16/MODBUS ; 0: no CRC
609 -)))
610 -* (((
611 -NN: The length of RS485 command
612 -)))
613 -* (((
614 -XX XX XX XX: RS485 command total NN bytes
615 -)))
616 -* (((
617 -(((
618 -YY: How many bytes will be uplink from the return of this RS485 command,
619 -)))
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
620 620  
621 -* (((
622 -if YY=0, RS485-LN will execute the downlink command without uplink;
623 -)))
624 -* (((
625 -if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
626 -)))
627 -* (((
628 -if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
629 -)))
630 -)))
551 +**Example 1:**
631 631  
632 -(((
633 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
634 -)))
635 -
636 -(((
637 637  To connect a Modbus Alarm with below commands.
638 -)))
639 639  
640 -* (((
641 -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.
642 -)))
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.
643 643  
644 -* (((
645 -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.
646 -)))
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.
647 647  
648 -(((
649 649  So if user want to use downlink command to control to RS485 Alarm, he can use:
650 -)))
651 651  
652 -(((
653 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
654 -)))
561 +**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
655 655  
656 -(((
657 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
658 -)))
563 +**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
659 659  
660 -(((
661 661  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.
662 -)))
663 663  
664 -(((
665 -
666 -)))
667 667  
668 -(((
669 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
670 -)))
568 +**Example 2:**
671 671  
672 -(((
673 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
674 -)))
570 +Check TTL Sensor return:
675 675  
676 -(((
677 -
678 -)))
572 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
679 679  
680 -(((
681 -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:
682 -)))
683 683  
684 -(((
685 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
686 -)))
687 687  
688 -(((
689 - [[image:1654159460680-153.png]]
690 -)))
691 691  
577 +==== Set Payload version ====
692 692  
693 -
694 -
695 -==== **Set Payload version** ====
696 -
697 -(((
698 698  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.
699 -)))
700 700  
701 -* (((
702 -**AT Command:**
703 -)))
581 +* AT Command:
704 704  
705 -(% class="box infomessage" %)
706 -(((
707 -(((
708 -**AT+PAYVER: Set PAYVER field = 1**
709 -)))
710 -)))
583 +AT+PAYVER: Set PAYVER field = 1
711 711  
712 -* (((
713 -**Downlink Payload:**
714 -)))
715 715  
716 -(((
717 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
718 -)))
586 +* Downlink Payload:
719 719  
720 -(((
721 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
722 -)))
588 +0xAE 01   à Set PAYVER field =  0x01
723 723  
590 +0xAE 0F   à Set PAYVER field =  0x0F
724 724  
725 725  
593 +==== Set RS485 Sampling Commands ====
726 726  
727 -==== **Set RS485 Sampling Commands** ====
595 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
728 728  
729 -(((
730 -AT+COMMANDx or AT+DATACUTx
731 -)))
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]].
732 732  
733 -(((
734 -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"]].
735 -)))
736 736  
737 -(((
738 -
739 -)))
600 +* AT Command:
740 740  
741 -* (((
742 -**AT Command:**
743 -)))
602 +AT+COMMANDx: Configure RS485 read command to sensor.
744 744  
745 -(% class="box infomessage" %)
746 -(((
747 -(((
748 -**AT+COMMANDx: Configure RS485 read command to sensor.**
749 -)))
750 -)))
604 +AT+DATACUTx: Configure how to handle return from RS485 devices.
751 751  
752 -(% class="box infomessage" %)
753 -(((
754 -(((
755 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
756 -)))
757 -)))
606 +AT+SEARCHx: Configure search command
758 758  
759 -(((
760 -
761 -)))
762 762  
763 -* (((
764 -**Downlink Payload:**
765 -)))
609 +* Downlink Payload:
766 766  
767 -(((
768 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
769 -)))
611 +0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
770 770  
771 -(((
772 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
773 -)))
613 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
774 774  
775 -(((
776 776  Format: AF MM NN LL XX XX XX XX YY
777 -)))
778 778  
779 -(((
780 780  Where:
781 -)))
782 782  
783 -* (((
784 -MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
785 -)))
786 -* (((
787 -NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
788 -)))
789 -* (((
790 -LL:  The length of AT+COMMAND or AT+DATACUT command
791 -)))
792 -* (((
793 -XX XX XX XX: AT+COMMAND or AT+DATACUT command
794 -)))
795 -* (((
796 -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.
797 -)))
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.
798 798  
799 -(((
800 -**Example:**
801 -)))
625 +Example:
802 802  
803 -(((
804 -(% 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
805 -)))
627 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
806 806  
807 -(((
808 -(% 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**
809 -)))
629 +**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
810 810  
811 -(((
812 -(% 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**
813 -)))
631 +**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
814 814  
815 815  
634 +0xAB downlink command can be used for set AT+SEARCHx
816 816  
636 +Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
817 817  
818 -==== **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
819 819  
820 -(((
821 -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]].
822 -)))
641 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
823 823  
824 -(((
825 -This command is valid since v1.3 firmware version
826 -)))
827 827  
828 -(((
829 -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.
830 -)))
644 +==== Fast command to handle MODBUS device ====
831 831  
832 -(((
833 -
834 -)))
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]].
835 835  
836 -(((
837 -**Example:**
838 -)))
648 +This command is valid since v1.3 firmware version
839 839  
840 -* (((
841 -AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
842 -)))
843 -* (((
844 -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.
845 -)))
846 -* (((
847 -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.
848 -)))
849 849  
850 -[[image:image-20220602165351-6.png]]
651 +AT+MBFUN has only two value:
851 851  
852 -[[image:image-20220602165351-7.png]]
653 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
853 853  
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.
854 854  
657 +* AT+MBFUN=0: Disable Modbus fast reading.
855 855  
659 +Example:
856 856  
857 -==== **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.
858 858  
859 -(((
860 -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.
861 -)))
665 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
862 862  
863 -(((
864 -Default value: 0, range:  0 ~~ 65 seconds
865 -)))
866 866  
867 -* (((
868 -**AT Command:**
869 -)))
668 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
870 870  
871 -(% class="box infomessage" %)
872 -(((
873 -(((
874 -**AT+CMDDLaa=hex(bb cc)*1000**
875 -)))
876 -)))
877 877  
878 -(((
879 -**Example:**
880 -)))
671 +* Downlink Commands:
881 881  
882 -(((
883 -**AT+CMDDL1=1000** to send the open time to 1000ms
884 -)))
673 +A9 aa -à Same as AT+MBFUN=aa
885 885  
886 -(((
887 -
888 -)))
889 889  
890 -* (((
891 -**Downlink Payload:**
892 -)))
676 +==== RS485 command timeout ====
893 893  
894 -(((
895 -**0x AA aa bb cc**
896 -)))
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.
897 897  
898 -(((
899 -Same as: AT+CMDDLaa=hex(bb cc)*1000
900 -)))
680 +Default value: 0, range:  0 ~~ 5 seconds
901 901  
902 -(((
903 - **Example:**
904 -)))
905 905  
906 -(((
907 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
908 -)))
683 +* AT Command:
909 909  
685 +AT+CMDDLaa=hex(bb cc)
910 910  
687 +Example:
911 911  
689 +**AT+CMDDL1=1000** to send the open time to 1000ms
912 912  
913 -==== **Uplink payload mode** ====
914 914  
915 -(((
916 -Define to use one uplink or multiple uplinks for the sampling.
917 -)))
692 +* Downlink Payload:
918 918  
919 -(((
920 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
921 -)))
694 +0x AA aa bb cc
922 922  
923 -* (((
924 -**AT Command:**
925 -)))
696 +Same as: AT+CMDDLaa=hex(bb cc)
926 926  
927 -(% class="box infomessage" %)
928 -(((
929 -(((
930 -**AT+DATAUP=0**
931 -)))
932 -)))
698 + Example:
933 933  
934 -(% class="box infomessage" %)
935 -(((
936 -(((
937 -**AT+DATAUP=1**
938 -)))
939 -)))
700 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
940 940  
941 -(((
942 -
943 -)))
944 944  
945 -* (((
946 -**Downlink Payload:**
947 -)))
703 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
948 948  
949 -(((
950 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
951 -)))
705 +Define to use one uplink or multiple uplinks for the sampling.
952 952  
953 -(((
954 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
955 -)))
707 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
956 956  
709 +* AT Command:
957 957  
711 +AT+DATAUP=0
958 958  
713 +AT+DATAUP=1
959 959  
960 -==== **Manually trigger an Uplink** ====
961 961  
962 -(((
963 -Ask device to send an uplink immediately.
964 -)))
716 +* Downlink Payload:
965 965  
966 -* (((
967 -**AT Command:**
968 -)))
718 +0xAD 00   à Same as AT+DATAUP=0
969 969  
970 -(((
971 -No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
972 -)))
720 +0xAD 01   à Same as AT+DATAUP=1
973 973  
974 -(((
975 -
976 -)))
977 977  
978 -* (((
979 -**Downlink Payload:**
980 -)))
723 +==== Manually trigger an Uplink ====
981 981  
982 -(((
983 -**0x08 FF**, RS485-LN will immediately send an uplink.
984 -)))
725 +Ask device to send an uplink immediately.
985 985  
727 +* Downlink Payload:
986 986  
729 +0x08 FF, RS485-BL will immediately send an uplink.
987 987  
988 988  
989 -==== **Clear RS485 Command** ====
732 +==== Clear RS485 Command ====
990 990  
991 -(((
992 992  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
993 -)))
994 994  
995 -* (((
996 -**AT Command:**
997 -)))
998 998  
999 -(((
737 +* AT Command:
738 +
1000 1000  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
1001 -)))
1002 1002  
1003 -(((
1004 1004  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1005 -)))
1006 1006  
1007 -(((
1008 1008  Example screen shot after clear all RS485 commands. 
1009 -)))
1010 1010  
1011 -(((
1012 -
1013 -)))
1014 1014  
1015 -(((
746 +
1016 1016  The uplink screen shot is:
1017 -)))
1018 1018  
1019 -[[image:1654160691922-496.png]]
749 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1020 1020  
1021 1021  
1022 -* (((
1023 -**Downlink Payload:**
1024 -)))
752 +* Downlink Payload:
1025 1025  
1026 -(((
1027 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
1028 -)))
754 +0x09 aa bb same as AT+CMDEAR=aa,bb
1029 1029  
1030 1030  
757 +==== Set Serial Communication Parameters ====
1031 1031  
1032 -
1033 -==== **Set Serial Communication Parameters** ====
1034 -
1035 -(((
1036 1036  Set the Rs485 serial communication parameters:
1037 -)))
1038 1038  
1039 -* (((
1040 -**AT Command:**
1041 -)))
761 +* AT Command:
1042 1042  
1043 -(((
1044 1044  Set Baud Rate:
1045 -)))
1046 1046  
1047 -(% class="box infomessage" %)
1048 -(((
1049 -(((
1050 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1051 -)))
1052 -)))
765 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1053 1053  
1054 -(((
1055 -Set UART Parity
1056 -)))
1057 1057  
1058 -(% class="box infomessage" %)
1059 -(((
1060 -(((
1061 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1062 -)))
1063 -)))
768 +Set UART parity
1064 1064  
1065 -(((
770 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
771 +
772 +
1066 1066  Set STOPBIT
1067 -)))
1068 1068  
1069 -(% class="box infomessage" %)
1070 -(((
1071 -(((
1072 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1073 -)))
1074 -)))
775 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1075 1075  
1076 -(((
1077 -
1078 -)))
1079 1079  
1080 -* (((
1081 -**Downlink Payload:**
1082 -)))
778 +* Downlink Payload:
1083 1083  
1084 -(((
1085 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1086 -)))
780 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1087 1087  
1088 -(((
1089 -**Example:**
1090 -)))
782 +Example:
1091 1091  
1092 -* (((
1093 -A7 01 00 60   same as AT+BAUDR=9600
1094 -)))
1095 -* (((
1096 -A7 01 04 80  same as AT+BAUDR=115200
1097 -)))
784 +* A7 01 00 60   same as AT+BAUDR=9600
785 +* A7 01 04 80  same as AT+BAUDR=115200
1098 1098  
1099 -(((
1100 1100  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1101 -)))
1102 1102  
1103 -(((
1104 1104  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1105 -)))
1106 1106  
1107 1107  
792 +==== Control output power duration ====
1108 1108  
794 +User can set the output power duration before each sampling.
1109 1109  
1110 -== 3.6 Listening mode for RS485 network ==
796 +* AT Command:
1111 1111  
1112 -(((
1113 -This feature support since firmware v1.4
1114 -)))
798 +Example:
1115 1115  
1116 -(((
1117 -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.
1118 -)))
800 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1119 1119  
1120 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
802 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1121 1121  
1122 -(((
1123 -To enable the listening mode, use can run the command AT+RXMODE.
1124 -)))
1125 1125  
1126 -(((
1127 -
1128 -)))
805 +* LoRaWAN Downlink Command:
1129 1129  
1130 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1131 -|=(% style="width: 100px;" %)(((
1132 -**Command example**
1133 -)))|=(% style="width: 400px;" %)(((
1134 -**Function**
1135 -)))
1136 -|(% style="width:100px" %)(((
1137 -AT+RXMODE=1,10
1138 -)))|(% style="width:400px" %)(((
1139 -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.
1140 -)))
1141 -|(% style="width:100px" %)(((
1142 -AT+RXMODE=2,500
1143 -)))|(% style="width:400px" %)(((
1144 -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
1145 -)))
1146 -|(% style="width:100px" %)(((
1147 -AT+RXMODE=0,0
1148 -)))|(% style="width:400px" %)(((
1149 -Disable listening mode. This is the default settings.
1150 -)))
1151 -|(% style="width:100px" %)(((
1152 -
1153 -)))|(% style="width:400px" %)(((
1154 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1155 -)))
807 +07 01 aa bb  Same as AT+5VT=(aa bb)
1156 1156  
1157 -(((
1158 -**Downlink Command:**
1159 -)))
809 +07 02 aa bb  Same as AT+3V3T=(aa bb)
1160 1160  
1161 -(((
1162 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1163 -)))
1164 1164  
1165 -(((
1166 -
1167 -)))
1168 1168  
1169 -(((
1170 -**Example**:
1171 -)))
1172 1172  
1173 -(((
1174 -The RS485-LN is set to AT+RXMODE=2,1000
1175 -)))
814 +1.
815 +11. Buttons
1176 1176  
1177 -(((
1178 -There is a two Modbus commands in the RS485 network as below:
1179 -)))
817 +|**Button**|**Feature**
818 +|**RST**|Reboot RS485-BL
1180 1180  
1181 -(((
1182 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1183 -)))
820 +1.
821 +11. +3V3 Output
1184 1184  
1185 -(((
1186 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1187 -)))
823 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1188 1188  
1189 -(((
1190 -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
1191 -)))
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. 
1192 1192  
1193 -(((
1194 -[[image:image-20220602171200-9.png]]
1195 -)))
1196 1196  
1197 -(((
1198 -
1199 -)))
828 +The +3V3 output time can be controlled by AT Command.
1200 1200  
1201 -(((
1202 -(((
1203 -(% 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.
1204 -)))
1205 -)))
830 +**AT+3V3T=1000**
1206 1206  
832 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1207 1207  
1208 -== 3.7 Buttons ==
1209 1209  
835 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1210 1210  
1211 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1212 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1213 -|(% style="width:50px" %)**ACT**|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1214 -|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1215 -|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1216 1216  
1217 -== 3.8 LEDs ==
838 +1.
839 +11. +5V Output
1218 1218  
841 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1219 1219  
1220 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1221 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1222 -|**PWR**|Always on if there is power
1223 -|**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. 
1224 1224  
1225 -= 4. Case Study =
1226 1226  
1227 -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.
1228 1228  
848 +**AT+5VT=1000**
1229 1229  
1230 -= 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.
1231 1231  
1232 -== 5.1 Access AT Command ==
1233 1233  
1234 -(((
1235 -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.
1236 -)))
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.
1237 1237  
1238 -[[image:1654162355560-817.png]]
1239 1239  
1240 1240  
1241 -(((
1242 -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:
1243 -)))
1244 1244  
1245 -[[image:1654162368066-342.png]]
858 +1.
859 +11. LEDs
1246 1246  
861 +|**LEDs**|**Feature**
862 +|**LED1**|Blink when device transmit a packet.
1247 1247  
1248 -(((
1249 -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.
1250 1250  )))
873 +|**SW2**|(((
874 +5V position: set to compatible with 5v I/O.
1251 1251  
876 +3.3v position: set to compatible with 3.3v I/O.,
877 +)))
1252 1252  
879 ++3.3V: is always ON
1253 1253  
1254 -== 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.
1255 1255  
1256 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
883 +1. Case Study
1257 1257  
1258 -If device has not joined network yet:
885 +User can check this URL for some case studies.
1259 1259  
1260 -(% class="box infomessage" %)
1261 -(((
1262 -**AT+FDR**
1263 -)))
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]]
1264 1264  
1265 -(% class="box infomessage" %)
1266 -(((
1267 -**AT+NJM=0**
1268 -)))
1269 1269  
1270 -(% class="box infomessage" %)
1271 -(((
1272 -**ATZ**
1273 -)))
1274 1274  
1275 1275  
1276 -(((
1277 -If device already joined network:
1278 -)))
892 +1. Use AT Command
893 +11. Access AT Command
1279 1279  
1280 -(% class="box infomessage" %)
1281 -(((
1282 -**AT+NJM=0**
1283 -)))
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.
1284 1284  
1285 -(% class="box infomessage" %)
1286 -(((
1287 -**ATZ**
1288 -)))
897 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1289 1289  
1290 1290  
1291 -=== 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:
1292 1292  
902 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1293 1293  
1294 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1295 1295  
1296 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1297 1297  
1298 -(% 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]]
1299 1299  
1300 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1301 1301  
1302 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1303 1303  
1304 -(% 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)
1305 1305  
1306 -(% 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:
1307 1307  
1308 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
916 +AT+FDR
1309 1309  
1310 -(% 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
1311 1311  
1312 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
920 +ATZ
1313 1313  
1314 1314  
1315 -(% style="color:red" %)**Note:**
923 +If device already joined network:
1316 1316  
1317 -(((
1318 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1319 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1320 -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.
1321 -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
1322 -)))
925 +AT+NJM=0
1323 1323  
1324 -[[image:1654162478620-421.png]]
927 +ATZ
1325 1325  
929 +1.
930 +11.
931 +111. Single-channel ABP mode (Use with LG01/LG02)
1326 1326  
1327 -= 6. FAQ =
933 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1328 1328  
1329 -== 6.1 How to upgrade the image? ==
935 +AT+NJM=0 Set to ABP mode
1330 1330  
1331 -(((
1332 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1333 -)))
937 +AT+ADR=0 Set the Adaptive Data Rate Off
1334 1334  
1335 -* (((
1336 -Support new features
1337 -)))
1338 -* (((
1339 -For bug fix
1340 -)))
1341 -* (((
1342 -Change LoRaWAN bands.
1343 -)))
939 +AT+DR=5  Set Data Rate
1344 1344  
1345 -(((
1346 -Below shows the hardware connection for how to upload an image to RS485-LN:
1347 -)))
941 +AT+TDC=60000  Set transmit interval to 60 seconds
1348 1348  
1349 -[[image:1654162535040-878.png]]
943 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1350 1350  
1351 -(((
1352 -**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]].
1353 -)))
945 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1354 1354  
1355 -(((
1356 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1357 -)))
947 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1358 1358  
1359 -(((
1360 -**Step3: **Open flashloader; choose the correct COM port to update.
1361 -)))
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.
1362 1362  
1363 -(((
1364 -(((
1365 -(((
1366 -(% 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.
1367 -)))
1368 -)))
1369 -)))
951 +ATZ          Reset MCU
1370 1370  
953 +**Note:**
1371 1371  
1372 -[[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
1373 1373  
960 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1374 1374  
1375 -[[image:image-20220602175848-13.png]]
1376 1376  
963 +1. FAQ
964 +11. How to upgrade the image?
1377 1377  
1378 -[[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:
1379 1379  
968 +* Support new features
969 +* For bug fix
970 +* Change LoRaWAN bands.
1380 1380  
1381 -**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:
1382 1382  
1383 -[[image:image-20220602175638-10.png]]
974 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1384 1384  
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]].
1385 1385  
1386 -== 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/]].
1387 1387  
1388 -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.
1389 1389  
1390 1390  
1391 -== 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 +)))
1392 1392  
1393 -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 +)))
1394 1394  
991 +|(((
992 +
993 +)))
1395 1395  
1396 -== 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]]
1397 1397  
1398 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1399 1399  
1400 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1401 1401  
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]]
1402 1402  
1403 -= 7. Trouble Shooting =
1404 1404  
1405 -== 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]]
1406 1406  
1407 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1408 1408  
1005 +1.
1006 +11. How to change the LoRa Frequency Bands/Region?
1409 1409  
1410 -== 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.
1411 1411  
1412 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1413 1413  
1414 1414  
1415 -= 8. Order Info =
1012 +1.
1013 +11. How many RS485-Slave can RS485-BL connects?
1416 1416  
1417 -(% 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]].
1418 1418  
1419 -(% style="color:blue" %)**XXX:**
1420 1420  
1421 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1422 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1423 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1424 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1425 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1426 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1427 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1428 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1429 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1430 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1431 1431  
1432 -= 9.Packing Info =
1433 1433  
1020 +1. Trouble Shooting     
1021 +11. Downlink doesn’t work, how to solve it?
1434 1434  
1435 -**Package Includes**:
1023 +Please see this link for debug:
1436 1436  
1437 -* RS485-LN x 1
1438 -* Stick Antenna for LoRa RF part x 1
1439 -* 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]] 
1440 1440  
1441 -**Dimension and weight**:
1442 1442  
1443 -* Device Size: 13.5 x 7 x 3 cm
1444 -* Device Weight: 105g
1445 -* Package Size / pcs : 14.5 x 8 x 5 cm
1446 -* Weight / pcs : 170g
1447 1447  
1448 -= 10. FCC Caution for RS485LN-US915 =
1029 +1.
1030 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1449 1449  
1450 -(((
1451 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1452 -)))
1032 +It might about the channels mapping. Please see for detail.
1453 1453  
1454 -(((
1455 -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.
1456 -)))
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]]
1457 1457  
1458 -(((
1459 -
1460 -)))
1461 1461  
1462 -(((
1463 -**IMPORTANT NOTE:**
1464 -)))
1465 1465  
1466 -(((
1467 -**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:
1468 -)))
1038 +1. Order Info
1469 1469  
1470 -(((
1471 -—Reorient or relocate the receiving antenna.
1472 -)))
1040 +**Part Number: RS485-BL-XXX**
1473 1473  
1474 -(((
1475 -—Increase the separation between the equipment and receiver.
1476 -)))
1042 +**XXX:**
1477 1477  
1478 -(((
1479 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1480 -)))
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
1481 1481  
1482 -(((
1483 -—Consult the dealer or an experienced radio/TV technician for help.
1484 -)))
1055 +1. Packing Info
1485 1485  
1486 -(((
1487 -
1488 -)))
1057 +**Package Includes**:
1489 1489  
1490 -(((
1491 -**FCC Radiation Exposure Statement:**
1492 -)))
1059 +* RS485-BL x 1
1060 +* Stick Antenna for LoRa RF part x 1
1061 +* Program cable x 1
1493 1493  
1494 -(((
1495 -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.
1496 -)))
1063 +**Dimension and weight**:
1497 1497  
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
1498 1498  
1499 -= 11. Support =
1070 +1. Support
1500 1500  
1501 -* (((
1502 -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.
1503 -)))
1504 -* (((
1505 -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]].
1506 -)))
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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