Last modified by Xiaoling on 2025/04/23 15:56
<
From version < 60.9 >
edited by Xiaoling
on 2022/06/14 11:15
To version < 39.1 >
edited by Xiaoling
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Change comment: Uploaded new attachment "1654158783574-851.png", version {1}

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -RS485-LN – RS485 to LoRaWAN Converter User Manual
1 +RS485-LN – RS485 to LoRaWAN Converter
Content
... ... @@ -3,20 +3,15 @@
3 3  
4 4  
5 5  
6 +**RS485-LN – RS485 to LoRaWAN Converter User Manual**
6 6  
7 7  
8 -
9 -
10 10  **Table of Contents:**
11 11  
12 -{{toc/}}
13 13  
14 14  
15 15  
16 16  
17 -
18 -
19 -
20 20  = 1.Introduction =
21 21  
22 22  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
... ... @@ -23,37 +23,23 @@
23 23  
24 24  (((
25 25  (((
26 -(((
27 -
28 -
29 29  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
30 30  )))
31 -)))
32 32  
33 33  (((
34 -(((
35 35  RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
36 36  )))
37 -)))
38 38  
39 39  (((
40 -(((
41 41  (% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
42 42  )))
43 -)))
44 44  
45 45  (((
46 -(((
47 47  (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
48 -)))
49 49  
50 -(((
51 51  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
52 -
53 -
54 54  )))
55 55  )))
56 -)))
57 57  
58 58  [[image:1653267211009-519.png||height="419" width="724"]]
59 59  
... ... @@ -69,13 +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  (((
... ... @@ -335,25 +335,16 @@
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 -
355 -
356 -
357 357  === 3.3.3 Configure read commands for each sampling ===
358 358  
359 359  (((
... ... @@ -399,8 +399,8 @@
399 399  
400 400  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
401 401  
402 -(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
403 -|(% style="width:510px" %)(((
349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350 +|(% style="width:722px" %)(((
404 404  **AT+DATACUTx=a,b,c**
405 405  
406 406  * **a: length for the return of AT+COMMAND**
... ... @@ -424,7 +424,6 @@
424 424  
425 425  [[image:image-20220602153621-3.png]]
426 426  
427 -
428 428  
429 429  )))
430 430  
... ... @@ -470,7 +470,6 @@
470 470  
471 471  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
472 472  
473 -
474 474  1. PAYVER: Defined by AT+PAYVER
475 475  1. PAYLOAD COUNT: Total how many uplinks of this sampling.
476 476  1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
... ... @@ -527,33 +527,33 @@
527 527  
528 528  == 3.4 Uplink Payload ==
529 529  
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)
530 530  
531 -[[image:image-20220606110929-1.png]]
480 +&
532 532  
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 +
533 533  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
534 534  
535 535  
536 -== 3.5 Configure RS485-LN via AT or Downlink ==
492 +== 3.5 Configure RS485-BL via AT or Downlink ==
537 537  
538 -(((
539 539  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
540 -)))
541 541  
542 -(((
543 543  There are two kinds of Commands:
544 -)))
545 545  
546 -* (((
547 -(% 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]]
548 -)))
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]]
549 549  
550 -* (((
551 -(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
552 -)))
500 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
553 553  
554 -(((
555 -
556 -)))
557 557  
558 558  
559 559  === 3.5.1 Common Commands ===
... ... @@ -561,950 +561,570 @@
561 561  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]]
562 562  
563 563  
564 -=== 3.5.2 Sensor related commands ===
509 +=== 3.5.2 Sensor related commands: ===
565 565  
566 -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) ====
567 567  
568 -[[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.
569 569  
570 -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
571 571  
517 +**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
572 572  
573 -=== 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.
574 574  
575 575  
522 +* Downlink Payload
576 576  
524 +**0A aa**     à same as AT+MOD=aa
577 577  
578 -==== **RS485 Debug Command** ====
579 579  
580 -(((
581 -This command is used to configure the RS485 devices; they won’t be used during sampling.
582 -)))
583 583  
584 -* (((
585 -**AT Command**
586 -)))
528 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
587 587  
588 -(% class="box infomessage" %)
589 -(((
590 -(((
591 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
592 -)))
593 -)))
530 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
594 594  
595 -(((
596 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
597 -)))
532 +* AT Command
598 598  
599 -* (((
600 -**Downlink Payload**
601 -)))
534 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
602 602  
603 -(((
536 +m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
537 +
538 +
539 +
540 +* Downlink Payload
541 +
604 604  Format: A8 MM NN XX XX XX XX YY
605 -)))
606 606  
607 -(((
608 608  Where:
609 -)))
610 610  
611 -* (((
612 -MM: 1: add CRC-16/MODBUS ; 0: no CRC
613 -)))
614 -* (((
615 -NN: The length of RS485 command
616 -)))
617 -* (((
618 -XX XX XX XX: RS485 command total NN bytes
619 -)))
620 -* (((
621 -(((
622 -YY: How many bytes will be uplink from the return of this RS485 command,
623 -)))
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
624 624  
625 -* (((
626 -if YY=0, RS485-LN will execute the downlink command without uplink;
627 -)))
628 -* (((
629 -if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
630 -)))
631 -* (((
632 -if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
633 -)))
634 -)))
551 +**Example 1:**
635 635  
636 -(((
637 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
638 -)))
639 -
640 -(((
641 641  To connect a Modbus Alarm with below commands.
642 -)))
643 643  
644 -* (((
645 -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.
646 -)))
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.
647 647  
648 -* (((
649 -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.
650 -)))
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.
651 651  
652 -(((
653 653  So if user want to use downlink command to control to RS485 Alarm, he can use:
654 -)))
655 655  
656 -(((
657 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
658 -)))
561 +**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
659 659  
660 -(((
661 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
662 -)))
563 +**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
663 663  
664 -(((
665 665  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.
666 -)))
667 667  
668 -(((
669 -
670 -)))
671 671  
672 -(((
673 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
674 -)))
568 +**Example 2:**
675 675  
676 -(((
677 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
678 -)))
570 +Check TTL Sensor return:
679 679  
680 -(((
681 -
682 -)))
572 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
683 683  
684 -(((
685 -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:
686 -)))
687 687  
688 -(((
689 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
690 -)))
691 691  
692 -(((
693 - [[image:1654159460680-153.png]]
694 -)))
695 695  
577 +==== Set Payload version ====
696 696  
697 -
698 -
699 -==== **Set Payload version** ====
700 -
701 -(((
702 702  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.
703 -)))
704 704  
705 -* (((
706 -**AT Command:**
707 -)))
581 +* AT Command:
708 708  
709 -(% class="box infomessage" %)
710 -(((
711 -(((
712 -**AT+PAYVER: Set PAYVER field = 1**
713 -)))
714 -)))
583 +AT+PAYVER: Set PAYVER field = 1
715 715  
716 -* (((
717 -**Downlink Payload:**
718 -)))
719 719  
720 -(((
721 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
722 -)))
586 +* Downlink Payload:
723 723  
724 -(((
725 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
726 -)))
588 +0xAE 01   à Set PAYVER field =  0x01
727 727  
590 +0xAE 0F   à Set PAYVER field =  0x0F
728 728  
729 729  
593 +==== Set RS485 Sampling Commands ====
730 730  
731 -==== **Set RS485 Sampling Commands** ====
595 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
732 732  
733 -(((
734 -AT+COMMANDx or AT+DATACUTx
735 -)))
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]].
736 736  
737 -(((
738 -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"]].
739 -)))
740 740  
741 -(((
742 -
743 -)))
600 +* AT Command:
744 744  
745 -* (((
746 -**AT Command:**
747 -)))
602 +AT+COMMANDx: Configure RS485 read command to sensor.
748 748  
749 -(% class="box infomessage" %)
750 -(((
751 -(((
752 -**AT+COMMANDx: Configure RS485 read command to sensor.**
753 -)))
754 -)))
604 +AT+DATACUTx: Configure how to handle return from RS485 devices.
755 755  
756 -(% class="box infomessage" %)
757 -(((
758 -(((
759 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
760 -)))
761 -)))
606 +AT+SEARCHx: Configure search command
762 762  
763 -(((
764 -
765 -)))
766 766  
767 -* (((
768 -**Downlink Payload:**
769 -)))
609 +* Downlink Payload:
770 770  
771 -(((
772 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
773 -)))
611 +0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
774 774  
775 -(((
776 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
777 -)))
613 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
778 778  
779 -(((
780 780  Format: AF MM NN LL XX XX XX XX YY
781 -)))
782 782  
783 -(((
784 784  Where:
785 -)))
786 786  
787 -* (((
788 -MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
789 -)))
790 -* (((
791 -NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
792 -)))
793 -* (((
794 -LL:  The length of AT+COMMAND or AT+DATACUT command
795 -)))
796 -* (((
797 -XX XX XX XX: AT+COMMAND or AT+DATACUT command
798 -)))
799 -* (((
800 -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.
801 -)))
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.
802 802  
803 -(((
804 -**Example:**
805 -)))
625 +Example:
806 806  
807 -(((
808 -(% 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
809 -)))
627 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
810 810  
811 -(((
812 -(% 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**
813 -)))
629 +**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
814 814  
815 -(((
816 -(% 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**
817 -)))
631 +**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
818 818  
819 819  
634 +0xAB downlink command can be used for set AT+SEARCHx
820 820  
636 +Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
821 821  
822 -==== **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
823 823  
824 -(((
825 -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 -)))
641 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
827 827  
828 -(((
829 -This command is valid since v1.3 firmware version
830 -)))
831 831  
832 -(((
833 -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.
834 -)))
644 +==== Fast command to handle MODBUS device ====
835 835  
836 -(((
837 -
838 -)))
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]].
839 839  
840 -(((
841 -**Example:**
842 -)))
648 +This command is valid since v1.3 firmware version
843 843  
844 -* (((
845 -AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
846 -)))
847 -* (((
848 -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.
849 -)))
850 -* (((
851 -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.
852 -)))
853 853  
854 -[[image:image-20220602165351-6.png]]
651 +AT+MBFUN has only two value:
855 855  
856 -[[image:image-20220602165351-7.png]]
653 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
857 857  
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.
858 858  
657 +* AT+MBFUN=0: Disable Modbus fast reading.
859 859  
659 +Example:
860 860  
861 -==== **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.
862 862  
863 -(((
864 -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.
865 -)))
665 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
866 866  
867 -(((
868 -Default value: 0, range:  0 ~~ 65 seconds
869 -)))
870 870  
871 -* (((
872 -**AT Command:**
873 -)))
668 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
874 874  
875 -(% class="box infomessage" %)
876 -(((
877 -(((
878 -**AT+CMDDLaa=hex(bb cc)*1000**
879 -)))
880 -)))
881 881  
882 -(((
883 -**Example:**
884 -)))
671 +* Downlink Commands:
885 885  
886 -(((
887 -**AT+CMDDL1=1000** to send the open time to 1000ms
888 -)))
673 +A9 aa -à Same as AT+MBFUN=aa
889 889  
890 -(((
891 -
892 -)))
893 893  
894 -* (((
895 -**Downlink Payload:**
896 -)))
676 +==== RS485 command timeout ====
897 897  
898 -(((
899 -**0x AA aa bb cc**
900 -)))
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.
901 901  
902 -(((
903 -Same as: AT+CMDDLaa=hex(bb cc)*1000
904 -)))
680 +Default value: 0, range:  0 ~~ 5 seconds
905 905  
906 -(((
907 - **Example:**
908 -)))
909 909  
910 -(((
911 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
912 -)))
683 +* AT Command:
913 913  
685 +AT+CMDDLaa=hex(bb cc)
914 914  
687 +Example:
915 915  
689 +**AT+CMDDL1=1000** to send the open time to 1000ms
916 916  
917 -==== **Uplink payload mode** ====
918 918  
919 -(((
920 -Define to use one uplink or multiple uplinks for the sampling.
921 -)))
692 +* Downlink Payload:
922 922  
923 -(((
924 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
925 -)))
694 +0x AA aa bb cc
926 926  
927 -* (((
928 -**AT Command:**
929 -)))
696 +Same as: AT+CMDDLaa=hex(bb cc)
930 930  
931 -(% class="box infomessage" %)
932 -(((
933 -(((
934 -**AT+DATAUP=0**
935 -)))
936 -)))
698 + Example:
937 937  
938 -(% class="box infomessage" %)
939 -(((
940 -(((
941 -**AT+DATAUP=1**
942 -)))
943 -)))
700 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
944 944  
945 -(((
946 -
947 -)))
948 948  
949 -* (((
950 -**Downlink Payload:**
951 -)))
703 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
952 952  
953 -(((
954 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
955 -)))
705 +Define to use one uplink or multiple uplinks for the sampling.
956 956  
957 -(((
958 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
959 -)))
707 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
960 960  
709 +* AT Command:
961 961  
711 +AT+DATAUP=0
962 962  
713 +AT+DATAUP=1
963 963  
964 -==== **Manually trigger an Uplink** ====
965 965  
966 -(((
967 -Ask device to send an uplink immediately.
968 -)))
716 +* Downlink Payload:
969 969  
970 -* (((
971 -**AT Command:**
972 -)))
718 +0xAD 00   à Same as AT+DATAUP=0
973 973  
974 -(((
975 -No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
976 -)))
720 +0xAD 01   à Same as AT+DATAUP=1
977 977  
978 -(((
979 -
980 -)))
981 981  
982 -* (((
983 -**Downlink Payload:**
984 -)))
723 +==== Manually trigger an Uplink ====
985 985  
986 -(((
987 -**0x08 FF**, RS485-LN will immediately send an uplink.
988 -)))
725 +Ask device to send an uplink immediately.
989 989  
727 +* Downlink Payload:
990 990  
729 +0x08 FF, RS485-BL will immediately send an uplink.
991 991  
992 992  
993 -==== **Clear RS485 Command** ====
732 +==== Clear RS485 Command ====
994 994  
995 -(((
996 996  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
997 -)))
998 998  
999 -* (((
1000 -**AT Command:**
1001 -)))
1002 1002  
1003 -(((
737 +* AT Command:
738 +
1004 1004  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
1005 -)))
1006 1006  
1007 -(((
1008 1008  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1009 -)))
1010 1010  
1011 -(((
1012 1012  Example screen shot after clear all RS485 commands. 
1013 -)))
1014 1014  
1015 -(((
1016 -
1017 -)))
1018 1018  
1019 -(((
746 +
1020 1020  The uplink screen shot is:
1021 -)))
1022 1022  
1023 -[[image:1654160691922-496.png]]
749 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1024 1024  
1025 1025  
1026 -* (((
1027 -**Downlink Payload:**
1028 -)))
752 +* Downlink Payload:
1029 1029  
1030 -(((
1031 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
1032 -)))
754 +0x09 aa bb same as AT+CMDEAR=aa,bb
1033 1033  
1034 1034  
757 +==== Set Serial Communication Parameters ====
1035 1035  
1036 -
1037 -==== **Set Serial Communication Parameters** ====
1038 -
1039 -(((
1040 1040  Set the Rs485 serial communication parameters:
1041 -)))
1042 1042  
1043 -* (((
1044 -**AT Command:**
1045 -)))
761 +* AT Command:
1046 1046  
1047 -(((
1048 1048  Set Baud Rate:
1049 -)))
1050 1050  
1051 -(% class="box infomessage" %)
1052 -(((
1053 -(((
1054 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1055 -)))
1056 -)))
765 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1057 1057  
1058 -(((
1059 -Set UART Parity
1060 -)))
1061 1061  
1062 -(% class="box infomessage" %)
1063 -(((
1064 -(((
1065 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1066 -)))
1067 -)))
768 +Set UART parity
1068 1068  
1069 -(((
770 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
771 +
772 +
1070 1070  Set STOPBIT
1071 -)))
1072 1072  
1073 -(% class="box infomessage" %)
1074 -(((
1075 -(((
1076 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1077 -)))
1078 -)))
775 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1079 1079  
1080 -(((
1081 -
1082 -)))
1083 1083  
1084 -* (((
1085 -**Downlink Payload:**
1086 -)))
778 +* Downlink Payload:
1087 1087  
1088 -(((
1089 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1090 -)))
780 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1091 1091  
1092 -(((
1093 -**Example:**
1094 -)))
782 +Example:
1095 1095  
1096 -* (((
1097 -A7 01 00 60   same as AT+BAUDR=9600
1098 -)))
1099 -* (((
1100 -A7 01 04 80  same as AT+BAUDR=115200
1101 -)))
784 +* A7 01 00 60   same as AT+BAUDR=9600
785 +* A7 01 04 80  same as AT+BAUDR=115200
1102 1102  
1103 -(((
1104 1104  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1105 -)))
1106 1106  
1107 -(((
1108 1108  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1109 -)))
1110 1110  
1111 1111  
792 +==== Control output power duration ====
1112 1112  
794 +User can set the output power duration before each sampling.
1113 1113  
1114 -== 3.6 Listening mode for RS485 network ==
796 +* AT Command:
1115 1115  
1116 -(((
1117 -This feature support since firmware v1.4
1118 -)))
798 +Example:
1119 1119  
1120 -(((
1121 -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.
1122 -)))
800 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1123 1123  
1124 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
802 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1125 1125  
1126 -(((
1127 -To enable the listening mode, use can run the command AT+RXMODE.
1128 -)))
1129 1129  
1130 -(((
1131 -
1132 -)))
805 +* LoRaWAN Downlink Command:
1133 1133  
1134 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1135 -|=(% style="width: 100px;" %)(((
1136 -**Command example**
1137 -)))|=(% style="width: 400px;" %)(((
1138 -**Function**
1139 -)))
1140 -|(% style="width:100px" %)(((
1141 -AT+RXMODE=1,10
1142 -)))|(% style="width:400px" %)(((
1143 -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.
1144 -)))
1145 -|(% style="width:100px" %)(((
1146 -AT+RXMODE=2,500
1147 -)))|(% style="width:400px" %)(((
1148 -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
1149 -)))
1150 -|(% style="width:100px" %)(((
1151 -AT+RXMODE=0,0
1152 -)))|(% style="width:400px" %)(((
1153 -Disable listening mode. This is the default settings.
1154 -)))
1155 -|(% style="width:100px" %)(((
1156 -
1157 -)))|(% style="width:400px" %)(((
1158 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1159 -)))
807 +07 01 aa bb  Same as AT+5VT=(aa bb)
1160 1160  
1161 -(((
1162 -**Downlink Command:**
1163 -)))
809 +07 02 aa bb  Same as AT+3V3T=(aa bb)
1164 1164  
1165 -(((
1166 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1167 -)))
1168 1168  
1169 -(((
1170 -
1171 -)))
1172 1172  
1173 -(((
1174 -**Example**:
1175 -)))
1176 1176  
1177 -(((
1178 -The RS485-LN is set to AT+RXMODE=2,1000
1179 -)))
814 +1.
815 +11. Buttons
1180 1180  
1181 -(((
1182 -There is a two Modbus commands in the RS485 network as below:
1183 -)))
817 +|**Button**|**Feature**
818 +|**RST**|Reboot RS485-BL
1184 1184  
1185 -(((
1186 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1187 -)))
820 +1.
821 +11. +3V3 Output
1188 1188  
1189 -(((
1190 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1191 -)))
823 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1192 1192  
1193 -(((
1194 -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
1195 -)))
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. 
1196 1196  
1197 -(((
1198 -[[image:image-20220602171200-9.png]]
1199 -)))
1200 1200  
1201 -(((
1202 -
1203 -)))
828 +The +3V3 output time can be controlled by AT Command.
1204 1204  
1205 -(((
1206 -(((
1207 -(% 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.
1208 -)))
1209 -)))
830 +**AT+3V3T=1000**
1210 1210  
832 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1211 1211  
1212 -== 3.7 Buttons ==
1213 1213  
835 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1214 1214  
1215 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1216 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1217 -|(% 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**
1218 -|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1219 -|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1220 1220  
1221 -== 3.8 LEDs ==
838 +1.
839 +11. +5V Output
1222 1222  
841 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1223 1223  
1224 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1225 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1226 -|**PWR**|Always on if there is power
1227 -|**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. 
1228 1228  
1229 -= 4. Case Study =
1230 1230  
1231 -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.
1232 1232  
848 +**AT+5VT=1000**
1233 1233  
1234 -= 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.
1235 1235  
1236 -== 5.1 Access AT Command ==
1237 1237  
1238 -(((
1239 -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.
1240 -)))
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.
1241 1241  
1242 -[[image:1654162355560-817.png]]
1243 1243  
1244 1244  
1245 -(((
1246 -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:
1247 -)))
1248 1248  
1249 -[[image:1654162368066-342.png]]
858 +1.
859 +11. LEDs
1250 1250  
861 +|**LEDs**|**Feature**
862 +|**LED1**|Blink when device transmit a packet.
1251 1251  
1252 -(((
1253 -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.
1254 1254  )))
873 +|**SW2**|(((
874 +5V position: set to compatible with 5v I/O.
1255 1255  
876 +3.3v position: set to compatible with 3.3v I/O.,
877 +)))
1256 1256  
879 ++3.3V: is always ON
1257 1257  
1258 -== 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.
1259 1259  
1260 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
883 +1. Case Study
1261 1261  
1262 -If device has not joined network yet:
885 +User can check this URL for some case studies.
1263 1263  
1264 -(% class="box infomessage" %)
1265 -(((
1266 -**AT+FDR**
1267 -)))
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]]
1268 1268  
1269 -(% class="box infomessage" %)
1270 -(((
1271 -**AT+NJM=0**
1272 -)))
1273 1273  
1274 -(% class="box infomessage" %)
1275 -(((
1276 -**ATZ**
1277 -)))
1278 1278  
1279 1279  
1280 -(((
1281 -If device already joined network:
1282 -)))
892 +1. Use AT Command
893 +11. Access AT Command
1283 1283  
1284 -(% class="box infomessage" %)
1285 -(((
1286 -**AT+NJM=0**
1287 -)))
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.
1288 1288  
1289 -(% class="box infomessage" %)
1290 -(((
1291 -**ATZ**
1292 -)))
897 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1293 1293  
1294 1294  
1295 -=== 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:
1296 1296  
902 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1297 1297  
1298 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1299 1299  
1300 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1301 1301  
1302 -(% 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]]
1303 1303  
1304 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1305 1305  
1306 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1307 1307  
1308 -(% 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)
1309 1309  
1310 -(% 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:
1311 1311  
1312 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
916 +AT+FDR
1313 1313  
1314 -(% 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
1315 1315  
1316 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
920 +ATZ
1317 1317  
1318 1318  
1319 -(% style="color:red" %)**Note:**
923 +If device already joined network:
1320 1320  
1321 -(((
1322 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1323 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1324 -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.
1325 -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
1326 -)))
925 +AT+NJM=0
1327 1327  
1328 -[[image:1654162478620-421.png]]
927 +ATZ
1329 1329  
929 +1.
930 +11.
931 +111. Single-channel ABP mode (Use with LG01/LG02)
1330 1330  
1331 -= 6. FAQ =
933 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1332 1332  
1333 -== 6.1 How to upgrade the image? ==
935 +AT+NJM=0 Set to ABP mode
1334 1334  
1335 -(((
1336 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1337 -)))
937 +AT+ADR=0 Set the Adaptive Data Rate Off
1338 1338  
1339 -* (((
1340 -Support new features
1341 -)))
1342 -* (((
1343 -For bug fix
1344 -)))
1345 -* (((
1346 -Change LoRaWAN bands.
1347 -)))
939 +AT+DR=5  Set Data Rate
1348 1348  
1349 -(((
1350 -Below shows the hardware connection for how to upload an image to RS485-LN:
1351 -)))
941 +AT+TDC=60000  Set transmit interval to 60 seconds
1352 1352  
1353 -[[image:1654162535040-878.png]]
943 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1354 1354  
1355 -(((
1356 -**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]].
1357 -)))
945 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1358 1358  
1359 -(((
1360 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1361 -)))
947 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1362 1362  
1363 -(((
1364 -**Step3: **Open flashloader; choose the correct COM port to update.
1365 -)))
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.
1366 1366  
1367 -(((
1368 -(((
1369 -(((
1370 -(% 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.
1371 -)))
1372 -)))
1373 -)))
951 +ATZ          Reset MCU
1374 1374  
953 +**Note:**
1375 1375  
1376 -[[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
1377 1377  
960 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1378 1378  
1379 -[[image:image-20220602175848-13.png]]
1380 1380  
963 +1. FAQ
964 +11. How to upgrade the image?
1381 1381  
1382 -[[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:
1383 1383  
968 +* Support new features
969 +* For bug fix
970 +* Change LoRaWAN bands.
1384 1384  
1385 -**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:
1386 1386  
1387 -[[image:image-20220602175638-10.png]]
974 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1388 1388  
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]].
1389 1389  
1390 -== 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/]].
1391 1391  
1392 -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.
1393 1393  
1394 1394  
1395 -== 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 +)))
1396 1396  
1397 -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 +)))
1398 1398  
991 +|(((
992 +
993 +)))
1399 1399  
1400 -== 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]]
1401 1401  
1402 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1403 1403  
1404 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1405 1405  
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]]
1406 1406  
1407 -= 7. Trouble Shooting =
1408 1408  
1409 -== 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]]
1410 1410  
1411 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1412 1412  
1005 +1.
1006 +11. How to change the LoRa Frequency Bands/Region?
1413 1413  
1414 -== 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.
1415 1415  
1416 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1417 1417  
1418 1418  
1419 -= 8. Order Info =
1012 +1.
1013 +11. How many RS485-Slave can RS485-BL connects?
1420 1420  
1421 -(% 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]].
1422 1422  
1423 -(% style="color:blue" %)**XXX:**
1424 1424  
1425 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1426 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1427 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1428 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1429 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1430 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1431 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1432 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1433 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1434 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1435 1435  
1436 -= 9.Packing Info =
1437 1437  
1020 +1. Trouble Shooting     
1021 +11. Downlink doesn’t work, how to solve it?
1438 1438  
1439 -**Package Includes**:
1023 +Please see this link for debug:
1440 1440  
1441 -* RS485-LN x 1
1442 -* Stick Antenna for LoRa RF part x 1
1443 -* 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]] 
1444 1444  
1445 -**Dimension and weight**:
1446 1446  
1447 -* Device Size: 13.5 x 7 x 3 cm
1448 -* Device Weight: 105g
1449 -* Package Size / pcs : 14.5 x 8 x 5 cm
1450 -* Weight / pcs : 170g
1451 1451  
1452 -= 10. FCC Caution for RS485LN-US915 =
1029 +1.
1030 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1453 1453  
1454 -(((
1455 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1456 -)))
1032 +It might about the channels mapping. Please see for detail.
1457 1457  
1458 -(((
1459 -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.
1460 -)))
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]]
1461 1461  
1462 -(((
1463 -
1464 -)))
1465 1465  
1466 -(((
1467 -**IMPORTANT NOTE:**
1468 -)))
1469 1469  
1470 -(((
1471 -**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:
1472 -)))
1038 +1. Order Info
1473 1473  
1474 -(((
1475 -—Reorient or relocate the receiving antenna.
1476 -)))
1040 +**Part Number: RS485-BL-XXX**
1477 1477  
1478 -(((
1479 -—Increase the separation between the equipment and receiver.
1480 -)))
1042 +**XXX:**
1481 1481  
1482 -(((
1483 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1484 -)))
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
1485 1485  
1486 -(((
1487 -—Consult the dealer or an experienced radio/TV technician for help.
1488 -)))
1055 +1. Packing Info
1489 1489  
1490 -(((
1491 -
1492 -)))
1057 +**Package Includes**:
1493 1493  
1494 -(((
1495 -**FCC Radiation Exposure Statement:**
1496 -)))
1059 +* RS485-BL x 1
1060 +* Stick Antenna for LoRa RF part x 1
1061 +* Program cable x 1
1497 1497  
1498 -(((
1499 -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.
1500 -)))
1063 +**Dimension and weight**:
1501 1501  
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
1502 1502  
1503 -= 11. Support =
1070 +1. Support
1504 1504  
1505 -* (((
1506 -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.
1507 -)))
1508 -* (((
1509 -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]].
1510 -)))
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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