Last modified by Xiaoling on 2025/04/23 15:56
<
From version < 61.5 >
edited by Xiaoling
on 2022/06/14 11:33
To version < 40.1 >
edited by Xiaoling
on 2022/06/02 16:33
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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  
... ... @@ -93,9 +93,8 @@
93 93  * Preamble detection.
94 94  * 127 dB Dynamic Range RSSI.
95 95  * Automatic RF Sense and CAD with ultra-fast AFC.
96 -* Packet engine up to 256 bytes with CRC
77 +* Packet engine up to 256 bytes with CRC.
97 97  
98 -
99 99  == 1.3 Features ==
100 100  
101 101  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -107,7 +107,6 @@
107 107  * Support Modbus protocol
108 108  * Support Interrupt uplink (Since hardware version v1.2)
109 109  
110 -
111 111  == 1.4 Applications ==
112 112  
113 113  * Smart Buildings & Home Automation
... ... @@ -117,7 +117,6 @@
117 117  * Smart Cities
118 118  * Smart Factory
119 119  
120 -
121 121  == 1.5 Firmware Change log ==
122 122  
123 123  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -127,13 +127,9 @@
127 127  
128 128  (((
129 129  (((
130 -(((
131 131  v1.2: Add External Interrupt Pin.
132 -)))
133 133  
134 -(((
135 135  v1.0: Release
136 -)))
137 137  
138 138  
139 139  )))
... ... @@ -161,9 +161,7 @@
161 161  == 3.1 How it works? ==
162 162  
163 163  (((
164 -(((
165 165  The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
166 -)))
167 167  
168 168  
169 169  )))
... ... @@ -186,13 +186,12 @@
186 186  
187 187  [[image:1653268227651-549.png||height="592" width="720"]]
188 188  
189 -
190 190  (((
191 -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:
192 192  )))
193 193  
194 194  (((
195 -(% 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.
196 196  )))
197 197  
198 198  (((
... ... @@ -202,7 +202,6 @@
202 202  
203 203  [[image:1652953462722-299.png]]
204 204  
205 -
206 206  (((
207 207  (((
208 208  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
... ... @@ -209,7 +209,7 @@
209 209  )))
210 210  
211 211  (((
212 -**Add APP EUI in the application.**
182 +Add APP EUI in the application.
213 213  )))
214 214  )))
215 215  
... ... @@ -225,15 +225,13 @@
225 225  
226 226  [[image:1652953542269-423.png||height="710" width="723"]]
227 227  
198 +Add APP KEY and DEV EUI
228 228  
229 -
230 -**Add APP KEY and DEV EUI**
231 -
232 232  [[image:1652953553383-907.png||height="514" width="724"]]
233 233  
234 234  
235 235  (((
236 -(% 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.
237 237  )))
238 238  
239 239  [[image:1652953568895-172.png||height="232" width="724"]]
... ... @@ -243,15 +243,11 @@
243 243  
244 244  (((
245 245  (((
246 -(((
247 -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-LNviaATorDownlink"]] 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.
248 248  )))
249 -)))
250 250  
251 251  (((
252 -(((
253 253  (% 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
254 -)))
255 255  
256 256  
257 257  )))
... ... @@ -261,19 +261,19 @@
261 261  
262 262  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:
263 263  
264 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
265 -|=(% style="width: 110px;" %)(((
228 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
229 +|(% style="width:128px" %)(((
266 266  **AT Commands**
267 -)))|=(% style="width: 190px;" %)(((
231 +)))|(% style="width:305px" %)(((
268 268  **Description**
269 -)))|=(% style="width: 190px;" %)(((
233 +)))|(% style="width:346px" %)(((
270 270  **Example**
271 271  )))
272 -|(% style="width:110px" %)(((
236 +|(% style="width:128px" %)(((
273 273  AT+BAUDR
274 -)))|(% style="width:190px" %)(((
238 +)))|(% style="width:305px" %)(((
275 275  Set the baud rate (for RS485 connection). Default Value is: 9600.
276 -)))|(% style="width:190px" %)(((
240 +)))|(% style="width:346px" %)(((
277 277  (((
278 278  AT+BAUDR=9600
279 279  )))
... ... @@ -282,11 +282,11 @@
282 282  Options: (1200,2400,4800,14400,19200,115200)
283 283  )))
284 284  )))
285 -|(% style="width:110px" %)(((
249 +|(% style="width:128px" %)(((
286 286  AT+PARITY
287 -)))|(% style="width:190px" %)(((
251 +)))|(% style="width:305px" %)(((
288 288  Set UART parity (for RS485 connection)
289 -)))|(% style="width:190px" %)(((
253 +)))|(% style="width:346px" %)(((
290 290  (((
291 291  AT+PARITY=0
292 292  )))
... ... @@ -295,9 +295,9 @@
295 295  Option: 0: no parity, 1: odd parity, 2: even parity
296 296  )))
297 297  )))
298 -|(% style="width:110px" %)(((
262 +|(% style="width:128px" %)(((
299 299  AT+STOPBIT
300 -)))|(% style="width:190px" %)(((
264 +)))|(% style="width:305px" %)(((
301 301  (((
302 302  Set serial stopbit (for RS485 connection)
303 303  )))
... ... @@ -305,7 +305,7 @@
305 305  (((
306 306  
307 307  )))
308 -)))|(% style="width:190px" %)(((
272 +)))|(% style="width:346px" %)(((
309 309  (((
310 310  AT+STOPBIT=0 for 1bit
311 311  )))
... ... @@ -319,8 +319,6 @@
319 319  )))
320 320  )))
321 321  
322 -
323 -
324 324  === 3.3.2 Configure sensors ===
325 325  
326 326  (((
... ... @@ -329,24 +329,16 @@
329 329  )))
330 330  )))
331 331  
332 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
333 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
334 -|AT+CFGDEV|(% style="width:110px" %)(((
335 -(((
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" %)(((
336 336  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
337 -)))
338 338  
339 -(((
340 340  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
341 -)))
342 342  
343 -(((
344 344  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
345 -)))
346 -)))|(% 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
347 347  
348 -
349 -
350 350  === 3.3.3 Configure read commands for each sampling ===
351 351  
352 352  (((
... ... @@ -359,7 +359,7 @@
359 359  During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
360 360  
361 361  
362 -(% style="color:#037691" %)**Each RS485 commands include two parts:**
316 +**Each RS485 commands include two parts:**
363 363  
364 364  ~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
365 365  
... ... @@ -370,14 +370,15 @@
370 370  
371 371  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
372 372  
327 +
373 373  Below are examples for the how above AT Commands works.
374 374  
375 375  
376 -(% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
331 +**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
377 377  
378 378  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
379 379  |(% style="width:496px" %)(((
380 -(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
335 +**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
381 381  
382 382  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
383 383  
... ... @@ -389,10 +389,10 @@
389 389  In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
390 390  
391 391  
392 -(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
347 +**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
393 393  
394 -(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
395 -|(% style="width:510px" %)(((
349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350 +|(% style="width:722px" %)(((
396 396  **AT+DATACUTx=a,b,c**
397 397  
398 398  * **a: length for the return of AT+COMMAND**
... ... @@ -402,21 +402,20 @@
402 402  
403 403  **Examples:**
404 404  
405 -* (% style="color:#037691" %)**Grab bytes**
360 +* Grab bytes:
406 406  
407 407  [[image:image-20220602153621-1.png]]
408 408  
409 409  
410 -* (% style="color:#037691" %)**Grab a section**
365 +* Grab a section.
411 411  
412 412  [[image:image-20220602153621-2.png]]
413 413  
414 414  
415 -* (% style="color:#037691" %)**Grab different sections**
370 +* Grab different sections.
416 416  
417 417  [[image:image-20220602153621-3.png]]
418 418  
419 -
420 420  
421 421  )))
422 422  
... ... @@ -462,7 +462,6 @@
462 462  
463 463  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
464 464  
465 -
466 466  1. PAYVER: Defined by AT+PAYVER
467 467  1. PAYLOAD COUNT: Total how many uplinks of this sampling.
468 468  1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
... ... @@ -496,7 +496,6 @@
496 496  [[image:1654157178836-407.png]]
497 497  
498 498  
499 -
500 500  === 3.3.5 Uplink on demand ===
501 501  
502 502  Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command.
... ... @@ -520,33 +520,33 @@
520 520  
521 521  == 3.4 Uplink Payload ==
522 522  
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)
523 523  
524 -[[image:image-20220606110929-1.png]]
480 +&
525 525  
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 +
526 526  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
527 527  
528 528  
529 -== 3.5 Configure RS485-LN via AT or Downlink ==
492 +== 3.5 Configure RS485-BL via AT or Downlink ==
530 530  
531 -(((
532 532  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
533 -)))
534 534  
535 -(((
536 536  There are two kinds of Commands:
537 -)))
538 538  
539 -* (((
540 -(% 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]]
541 -)))
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]]
542 542  
543 -* (((
544 -(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
545 -)))
500 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
546 546  
547 -(((
548 -
549 -)))
550 550  
551 551  
552 552  === 3.5.1 Common Commands ===
... ... @@ -554,947 +554,570 @@
554 554  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]]
555 555  
556 556  
557 -=== 3.5.2 Sensor related commands ===
509 +=== 3.5.2 Sensor related commands: ===
558 558  
559 -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) ====
560 560  
561 -[[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.
562 562  
563 -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
564 564  
517 +**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
565 565  
566 -=== 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.
567 567  
568 568  
522 +* Downlink Payload
569 569  
524 +**0A aa**     à same as AT+MOD=aa
570 570  
571 -==== (% style="color:#037691" %)**RS485 Debug Command**(%%) ====
572 572  
573 -(((
574 -This command is used to configure the RS485 devices; they won’t be used during sampling.
575 -)))
576 576  
577 -* (((
578 -(% style="color:#037691" %)**AT Command**
528 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
579 579  
580 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
530 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
581 581  
582 -
583 -)))
532 +* AT Command
584 584  
585 -(((
586 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
587 -)))
534 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
588 588  
589 -* (((
590 -(% style="color:#037691" %)**Downlink Payload**
591 -)))
536 +m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
592 592  
593 -(((
538 +
539 +
540 +* Downlink Payload
541 +
594 594  Format: A8 MM NN XX XX XX XX YY
595 -)))
596 596  
597 -(((
598 598  Where:
599 -)))
600 600  
601 -* (((
602 -MM: 1: add CRC-16/MODBUS ; 0: no CRC
603 -)))
604 -* (((
605 -NN: The length of RS485 command
606 -)))
607 -* (((
608 -XX XX XX XX: RS485 command total NN bytes
609 -)))
610 -* (((
611 -(((
612 -YY: How many bytes will be uplink from the return of this RS485 command,
613 -)))
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
614 614  
615 -* (((
616 -if YY=0, RS485-LN will execute the downlink command without uplink;
617 -)))
618 -* (((
619 -if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
620 -)))
621 -* (((
622 -if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
623 -)))
624 -)))
551 +**Example 1:**
625 625  
626 -(((
627 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
628 -)))
629 -
630 -(((
631 631  To connect a Modbus Alarm with below commands.
632 -)))
633 633  
634 -* (((
635 -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.
636 -)))
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.
637 637  
638 -* (((
639 -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.
640 -)))
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.
641 641  
642 -(((
643 643  So if user want to use downlink command to control to RS485 Alarm, he can use:
644 -)))
645 645  
646 -(((
647 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
648 -)))
561 +**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
649 649  
650 -(((
651 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
652 -)))
563 +**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
653 653  
654 -(((
655 655  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.
656 -)))
657 657  
658 -(((
659 -
660 -)))
661 661  
662 -(((
663 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
664 -)))
568 +**Example 2:**
665 665  
666 -(((
667 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
668 -)))
570 +Check TTL Sensor return:
669 669  
670 -(((
671 -
672 -)))
572 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
673 673  
674 -(((
675 -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:
676 -)))
677 677  
678 -(((
679 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
680 -)))
681 681  
682 -(((
683 - [[image:1654159460680-153.png]]
684 -)))
685 685  
577 +==== Set Payload version ====
686 686  
579 +This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
687 687  
581 +* AT Command:
688 688  
689 -==== **Set Payload version** ====
583 +AT+PAYVER: Set PAYVER field = 1
690 690  
691 -(((
692 -This is the first byte of the uplink payload. RS485-LN can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
693 -)))
694 694  
695 -* (((
696 -**AT Command:**
697 -)))
586 +* Downlink Payload:
698 698  
699 -(% class="box infomessage" %)
700 -(((
701 -(((
702 -**AT+PAYVER: Set PAYVER field = 1**
703 -)))
704 -)))
588 +0xAE 01   à Set PAYVER field =  0x01
705 705  
706 -* (((
707 -**Downlink Payload:**
708 -)))
590 +0xAE 0F   à Set PAYVER field =  0x0F
709 709  
710 -(((
711 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
712 -)))
713 713  
714 -(((
715 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
716 -)))
593 +==== Set RS485 Sampling Commands ====
717 717  
595 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
718 718  
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]].
719 719  
720 720  
721 -==== **Set RS485 Sampling Commands** ====
600 +* AT Command:
722 722  
723 -(((
724 -AT+COMMANDx or AT+DATACUTx
725 -)))
602 +AT+COMMANDx: Configure RS485 read command to sensor.
726 726  
727 -(((
728 -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"]].
729 -)))
604 +AT+DATACUTx: Configure how to handle return from RS485 devices.
730 730  
731 -(((
732 -
733 -)))
606 +AT+SEARCHx: Configure search command
734 734  
735 -* (((
736 -**AT Command:**
737 -)))
738 738  
739 -(% class="box infomessage" %)
740 -(((
741 -(((
742 -**AT+COMMANDx: Configure RS485 read command to sensor.**
743 -)))
744 -)))
609 +* Downlink Payload:
745 745  
746 -(% class="box infomessage" %)
747 -(((
748 -(((
749 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
750 -)))
751 -)))
611 +0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
752 752  
753 -(((
754 -
755 -)))
613 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
756 756  
757 -* (((
758 -**Downlink Payload:**
759 -)))
615 +Format: AF MM NN LL XX XX XX XX YY
760 760  
761 -(((
762 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
763 -)))
617 +Where:
764 764  
765 -(((
766 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
767 -)))
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.
768 768  
769 -(((
770 -Format: AF MM NN LL XX XX XX XX YY
771 -)))
625 +Example:
772 772  
773 -(((
774 -Where:
775 -)))
627 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
776 776  
777 -* (((
778 -MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
779 -)))
780 -* (((
781 -NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
782 -)))
783 -* (((
784 -LL:  The length of AT+COMMAND or AT+DATACUT command
785 -)))
786 -* (((
787 -XX XX XX XX: AT+COMMAND or AT+DATACUT command
788 -)))
789 -* (((
790 -YY:  If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
791 -)))
629 +**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
792 792  
793 -(((
794 -**Example:**
795 -)))
631 +**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
796 796  
797 -(((
798 -(% 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
799 -)))
800 800  
801 -(((
802 -(% 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**
803 -)))
634 +0xAB downlink command can be used for set AT+SEARCHx
804 804  
805 -(((
806 -(% 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**
807 -)))
636 +Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
808 808  
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
809 809  
641 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
810 810  
811 811  
812 -==== **Fast command to handle MODBUS device** ====
644 +==== Fast command to handle MODBUS device ====
813 813  
814 -(((
815 815  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]].
816 -)))
817 817  
818 -(((
819 819  This command is valid since v1.3 firmware version
820 -)))
821 821  
822 -(((
823 -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.
824 -)))
825 825  
826 -(((
827 -
828 -)))
651 +AT+MBFUN has only two value:
829 829  
830 -(((
831 -**Example:**
832 -)))
653 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
833 833  
834 -* (((
835 -AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
836 -)))
837 -* (((
838 -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.
839 -)))
840 -* (((
841 -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.
842 -)))
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.
843 843  
844 -[[image:image-20220602165351-6.png]]
657 +* AT+MBFUN=0: Disable Modbus fast reading.
845 845  
846 -[[image:image-20220602165351-7.png]]
659 +Example:
847 847  
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.
848 848  
665 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
849 849  
850 850  
851 -==== **RS485 command timeout** ====
668 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
852 852  
853 -(((
854 -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.
855 -)))
856 856  
857 -(((
858 -Default value: 0, range:  0 ~~ 65 seconds
859 -)))
671 +* Downlink Commands:
860 860  
861 -* (((
862 -**AT Command:**
863 -)))
673 +A9 aa -à Same as AT+MBFUN=aa
864 864  
865 -(% class="box infomessage" %)
866 -(((
867 -(((
868 -**AT+CMDDLaa=hex(bb cc)*1000**
869 -)))
870 -)))
871 871  
872 -(((
873 -**Example:**
874 -)))
676 +==== RS485 command timeout ====
875 875  
876 -(((
877 -**AT+CMDDL1=1000** to send the open time to 1000ms
878 -)))
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.
879 879  
880 -(((
881 -
882 -)))
680 +Default value: 0, range:  0 ~~ 5 seconds
883 883  
884 -* (((
885 -**Downlink Payload:**
886 -)))
887 887  
888 -(((
889 -**0x AA aa bb cc**
890 -)))
683 +* AT Command:
891 891  
892 -(((
893 -Same as: AT+CMDDLaa=hex(bb cc)*1000
894 -)))
685 +AT+CMDDLaa=hex(bb cc)
895 895  
896 -(((
897 - **Example:**
898 -)))
687 +Example:
899 899  
900 -(((
901 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
902 -)))
689 +**AT+CMDDL1=1000** to send the open time to 1000ms
903 903  
904 904  
692 +* Downlink Payload:
905 905  
694 +0x AA aa bb cc
906 906  
907 -==== **Uplink payload mode** ====
696 +Same as: AT+CMDDLaa=hex(bb cc)
908 908  
909 -(((
910 -Define to use one uplink or multiple uplinks for the sampling.
911 -)))
698 + Example:
912 912  
913 -(((
914 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
915 -)))
700 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
916 916  
917 -* (((
918 -**AT Command:**
919 -)))
920 920  
921 -(% class="box infomessage" %)
922 -(((
923 -(((
924 -**AT+DATAUP=0**
925 -)))
926 -)))
703 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
927 927  
928 -(% class="box infomessage" %)
929 -(((
930 -(((
931 -**AT+DATAUP=1**
932 -)))
933 -)))
705 +Define to use one uplink or multiple uplinks for the sampling.
934 934  
935 -(((
936 -
937 -)))
707 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
938 938  
939 -* (((
940 -**Downlink Payload:**
941 -)))
709 +* AT Command:
942 942  
943 -(((
944 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
945 -)))
711 +AT+DATAUP=0
946 946  
947 -(((
948 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
949 -)))
713 +AT+DATAUP=1
950 950  
951 951  
716 +* Downlink Payload:
952 952  
718 +0xAD 00   à Same as AT+DATAUP=0
953 953  
954 -==== **Manually trigger an Uplink** ====
720 +0xAD 01   à Same as AT+DATAUP=1
955 955  
956 -(((
957 -Ask device to send an uplink immediately.
958 -)))
959 959  
960 -* (((
961 -**AT Command:**
962 -)))
723 +==== Manually trigger an Uplink ====
963 963  
964 -(((
965 -No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
966 -)))
725 +Ask device to send an uplink immediately.
967 967  
968 -(((
969 -
970 -)))
727 +* Downlink Payload:
971 971  
972 -* (((
973 -**Downlink Payload:**
974 -)))
729 +0x08 FF, RS485-BL will immediately send an uplink.
975 975  
976 -(((
977 -**0x08 FF**, RS485-LN will immediately send an uplink.
978 -)))
979 979  
732 +==== Clear RS485 Command ====
980 980  
981 -
982 -
983 -==== **Clear RS485 Command** ====
984 -
985 -(((
986 986  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
987 -)))
988 988  
989 -* (((
990 -**AT Command:**
991 -)))
992 992  
993 -(((
737 +* AT Command:
738 +
994 994  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
995 -)))
996 996  
997 -(((
998 998  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
999 -)))
1000 1000  
1001 -(((
1002 1002  Example screen shot after clear all RS485 commands. 
1003 -)))
1004 1004  
1005 -(((
1006 -
1007 -)))
1008 1008  
1009 -(((
746 +
1010 1010  The uplink screen shot is:
1011 -)))
1012 1012  
1013 -[[image:1654160691922-496.png]]
749 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1014 1014  
1015 1015  
1016 -* (((
1017 -**Downlink Payload:**
1018 -)))
752 +* Downlink Payload:
1019 1019  
1020 -(((
1021 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
1022 -)))
754 +0x09 aa bb same as AT+CMDEAR=aa,bb
1023 1023  
1024 1024  
757 +==== Set Serial Communication Parameters ====
1025 1025  
1026 -
1027 -==== **Set Serial Communication Parameters** ====
1028 -
1029 -(((
1030 1030  Set the Rs485 serial communication parameters:
1031 -)))
1032 1032  
1033 -* (((
1034 -**AT Command:**
1035 -)))
761 +* AT Command:
1036 1036  
1037 -(((
1038 1038  Set Baud Rate:
1039 -)))
1040 1040  
1041 -(% class="box infomessage" %)
1042 -(((
1043 -(((
1044 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1045 -)))
1046 -)))
765 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1047 1047  
1048 -(((
1049 -Set UART Parity
1050 -)))
1051 1051  
1052 -(% class="box infomessage" %)
1053 -(((
1054 -(((
1055 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1056 -)))
1057 -)))
768 +Set UART parity
1058 1058  
1059 -(((
770 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
771 +
772 +
1060 1060  Set STOPBIT
1061 -)))
1062 1062  
1063 -(% class="box infomessage" %)
1064 -(((
1065 -(((
1066 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1067 -)))
1068 -)))
775 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1069 1069  
1070 -(((
1071 -
1072 -)))
1073 1073  
1074 -* (((
1075 -**Downlink Payload:**
1076 -)))
778 +* Downlink Payload:
1077 1077  
1078 -(((
1079 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1080 -)))
780 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1081 1081  
1082 -(((
1083 -**Example:**
1084 -)))
782 +Example:
1085 1085  
1086 -* (((
1087 -A7 01 00 60   same as AT+BAUDR=9600
1088 -)))
1089 -* (((
1090 -A7 01 04 80  same as AT+BAUDR=115200
1091 -)))
784 +* A7 01 00 60   same as AT+BAUDR=9600
785 +* A7 01 04 80  same as AT+BAUDR=115200
1092 1092  
1093 -(((
1094 1094  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1095 -)))
1096 1096  
1097 -(((
1098 1098  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1099 -)))
1100 1100  
1101 1101  
792 +==== Control output power duration ====
1102 1102  
794 +User can set the output power duration before each sampling.
1103 1103  
1104 -== 3.6 Listening mode for RS485 network ==
796 +* AT Command:
1105 1105  
1106 -(((
1107 -This feature support since firmware v1.4
1108 -)))
798 +Example:
1109 1109  
1110 -(((
1111 -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.
1112 -)))
800 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1113 1113  
1114 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
802 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1115 1115  
1116 -(((
1117 -To enable the listening mode, use can run the command AT+RXMODE.
1118 -)))
1119 1119  
1120 -(((
1121 -
1122 -)))
805 +* LoRaWAN Downlink Command:
1123 1123  
1124 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1125 -|=(% style="width: 100px;" %)(((
1126 -**Command example**
1127 -)))|=(% style="width: 400px;" %)(((
1128 -**Function**
1129 -)))
1130 -|(% style="width:100px" %)(((
1131 -AT+RXMODE=1,10
1132 -)))|(% style="width:400px" %)(((
1133 -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.
1134 -)))
1135 -|(% style="width:100px" %)(((
1136 -AT+RXMODE=2,500
1137 -)))|(% style="width:400px" %)(((
1138 -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
1139 -)))
1140 -|(% style="width:100px" %)(((
1141 -AT+RXMODE=0,0
1142 -)))|(% style="width:400px" %)(((
1143 -Disable listening mode. This is the default settings.
1144 -)))
1145 -|(% style="width:100px" %)(((
1146 -
1147 -)))|(% style="width:400px" %)(((
1148 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1149 -)))
807 +07 01 aa bb  Same as AT+5VT=(aa bb)
1150 1150  
1151 -(((
1152 -**Downlink Command:**
1153 -)))
809 +07 02 aa bb  Same as AT+3V3T=(aa bb)
1154 1154  
1155 -(((
1156 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1157 -)))
1158 1158  
1159 -(((
1160 -
1161 -)))
1162 1162  
1163 -(((
1164 -**Example**:
1165 -)))
1166 1166  
1167 -(((
1168 -The RS485-LN is set to AT+RXMODE=2,1000
1169 -)))
814 +1.
815 +11. Buttons
1170 1170  
1171 -(((
1172 -There is a two Modbus commands in the RS485 network as below:
1173 -)))
817 +|**Button**|**Feature**
818 +|**RST**|Reboot RS485-BL
1174 1174  
1175 -(((
1176 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1177 -)))
820 +1.
821 +11. +3V3 Output
1178 1178  
1179 -(((
1180 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1181 -)))
823 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1182 1182  
1183 -(((
1184 -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
1185 -)))
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. 
1186 1186  
1187 -(((
1188 -[[image:image-20220602171200-9.png]]
1189 -)))
1190 1190  
1191 -(((
1192 -
1193 -)))
828 +The +3V3 output time can be controlled by AT Command.
1194 1194  
1195 -(((
1196 -(((
1197 -(% 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.
1198 -)))
1199 -)))
830 +**AT+3V3T=1000**
1200 1200  
832 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1201 1201  
1202 -== 3.7 Buttons ==
1203 1203  
835 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1204 1204  
1205 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1206 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1207 -|(% 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**
1208 -|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1209 -|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1210 1210  
1211 -== 3.8 LEDs ==
838 +1.
839 +11. +5V Output
1212 1212  
841 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1213 1213  
1214 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1215 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1216 -|**PWR**|Always on if there is power
1217 -|**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. 
1218 1218  
1219 -= 4. Case Study =
1220 1220  
1221 -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.
1222 1222  
848 +**AT+5VT=1000**
1223 1223  
1224 -= 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.
1225 1225  
1226 -== 5.1 Access AT Command ==
1227 1227  
1228 -(((
1229 -RS485-LN supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-LN to use AT command, as below.
1230 -)))
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.
1231 1231  
1232 -[[image:1654162355560-817.png]]
1233 1233  
1234 1234  
1235 -(((
1236 -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-LN. The default password is 123456. Below is the output for reference:
1237 -)))
1238 1238  
1239 -[[image:1654162368066-342.png]]
858 +1.
859 +11. LEDs
1240 1240  
861 +|**LEDs**|**Feature**
862 +|**LED1**|Blink when device transmit a packet.
1241 1241  
1242 -(((
1243 -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.
1244 1244  )))
873 +|**SW2**|(((
874 +5V position: set to compatible with 5v I/O.
1245 1245  
876 +3.3v position: set to compatible with 3.3v I/O.,
877 +)))
1246 1246  
879 ++3.3V: is always ON
1247 1247  
1248 -== 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.
1249 1249  
1250 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
883 +1. Case Study
1251 1251  
1252 -If device has not joined network yet:
885 +User can check this URL for some case studies.
1253 1253  
1254 -(% class="box infomessage" %)
1255 -(((
1256 -**AT+FDR**
1257 -)))
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]]
1258 1258  
1259 -(% class="box infomessage" %)
1260 -(((
1261 -**AT+NJM=0**
1262 -)))
1263 1263  
1264 -(% class="box infomessage" %)
1265 -(((
1266 -**ATZ**
1267 -)))
1268 1268  
1269 1269  
1270 -(((
1271 -If device already joined network:
1272 -)))
892 +1. Use AT Command
893 +11. Access AT Command
1273 1273  
1274 -(% class="box infomessage" %)
1275 -(((
1276 -**AT+NJM=0**
1277 -)))
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.
1278 1278  
1279 -(% class="box infomessage" %)
1280 -(((
1281 -**ATZ**
1282 -)))
897 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1283 1283  
1284 1284  
1285 -=== 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:
1286 1286  
902 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1287 1287  
1288 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1289 1289  
1290 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1291 1291  
1292 -(% 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]]
1293 1293  
1294 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1295 1295  
1296 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1297 1297  
1298 -(% 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)
1299 1299  
1300 -(% 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:
1301 1301  
1302 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
916 +AT+FDR
1303 1303  
1304 -(% 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
1305 1305  
1306 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
920 +ATZ
1307 1307  
1308 1308  
1309 -(% style="color:red" %)**Note:**
923 +If device already joined network:
1310 1310  
1311 -(((
1312 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1313 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1314 -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.
1315 -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
1316 -)))
925 +AT+NJM=0
1317 1317  
1318 -[[image:1654162478620-421.png]]
927 +ATZ
1319 1319  
929 +1.
930 +11.
931 +111. Single-channel ABP mode (Use with LG01/LG02)
1320 1320  
1321 -= 6. FAQ =
933 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1322 1322  
1323 -== 6.1 How to upgrade the image? ==
935 +AT+NJM=0 Set to ABP mode
1324 1324  
1325 -(((
1326 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1327 -)))
937 +AT+ADR=0 Set the Adaptive Data Rate Off
1328 1328  
1329 -* (((
1330 -Support new features
1331 -)))
1332 -* (((
1333 -For bug fix
1334 -)))
1335 -* (((
1336 -Change LoRaWAN bands.
1337 -)))
939 +AT+DR=5  Set Data Rate
1338 1338  
1339 -(((
1340 -Below shows the hardware connection for how to upload an image to RS485-LN:
1341 -)))
941 +AT+TDC=60000  Set transmit interval to 60 seconds
1342 1342  
1343 -[[image:1654162535040-878.png]]
943 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1344 1344  
1345 -(((
1346 -**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]].
1347 -)))
945 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1348 1348  
1349 -(((
1350 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1351 -)))
947 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1352 1352  
1353 -(((
1354 -**Step3: **Open flashloader; choose the correct COM port to update.
1355 -)))
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.
1356 1356  
1357 -(((
1358 -(((
1359 -(((
1360 -(% 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.
1361 -)))
1362 -)))
1363 -)))
951 +ATZ          Reset MCU
1364 1364  
953 +**Note:**
1365 1365  
1366 -[[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
1367 1367  
960 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1368 1368  
1369 -[[image:image-20220602175848-13.png]]
1370 1370  
963 +1. FAQ
964 +11. How to upgrade the image?
1371 1371  
1372 -[[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:
1373 1373  
968 +* Support new features
969 +* For bug fix
970 +* Change LoRaWAN bands.
1374 1374  
1375 -**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:
1376 1376  
1377 -[[image:image-20220602175638-10.png]]
974 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1378 1378  
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]].
1379 1379  
1380 -== 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/]].
1381 1381  
1382 -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.
1383 1383  
1384 1384  
1385 -== 6.3 How many RS485-Slave can RS485-LN connects? ==
983 +|(((
984 +HOLD PRO then press the RST button, SYS will be ON, then click next
985 +)))
1386 1386  
1387 -The RS485-LN can support max 32 RS485 devices. Each uplink command of RS485-LN can support max 16 different RS485 command. So RS485-LN 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 +)))
1388 1388  
991 +|(((
992 +
993 +)))
1389 1389  
1390 -== 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]]
1391 1391  
1392 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1393 1393  
1394 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1395 1395  
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]]
1396 1396  
1397 -= 7. Trouble Shooting =
1398 1398  
1399 -== 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]]
1400 1400  
1401 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1402 1402  
1005 +1.
1006 +11. How to change the LoRa Frequency Bands/Region?
1403 1403  
1404 -== 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.
1405 1405  
1406 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1407 1407  
1408 1408  
1409 -= 8. Order Info =
1012 +1.
1013 +11. How many RS485-Slave can RS485-BL connects?
1410 1410  
1411 -(% 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]].
1412 1412  
1413 -(% style="color:blue" %)**XXX:**
1414 1414  
1415 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1416 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1417 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1418 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1419 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1420 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1421 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1422 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1423 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1424 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1425 1425  
1426 -= 9.Packing Info =
1427 1427  
1020 +1. Trouble Shooting     
1021 +11. Downlink doesn’t work, how to solve it?
1428 1428  
1429 -**Package Includes**:
1023 +Please see this link for debug:
1430 1430  
1431 -* RS485-LN x 1
1432 -* Stick Antenna for LoRa RF part x 1
1433 -* 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]] 
1434 1434  
1435 -**Dimension and weight**:
1436 1436  
1437 -* Device Size: 13.5 x 7 x 3 cm
1438 -* Device Weight: 105g
1439 -* Package Size / pcs : 14.5 x 8 x 5 cm
1440 -* Weight / pcs : 170g
1441 1441  
1442 -= 10. FCC Caution for RS485LN-US915 =
1029 +1.
1030 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1443 1443  
1444 -(((
1445 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1446 -)))
1032 +It might about the channels mapping. Please see for detail.
1447 1447  
1448 -(((
1449 -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.
1450 -)))
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]]
1451 1451  
1452 -(((
1453 -
1454 -)))
1455 1455  
1456 -(((
1457 -**IMPORTANT NOTE:**
1458 -)))
1459 1459  
1460 -(((
1461 -**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:
1462 -)))
1038 +1. Order Info
1463 1463  
1464 -(((
1465 -—Reorient or relocate the receiving antenna.
1466 -)))
1040 +**Part Number: RS485-BL-XXX**
1467 1467  
1468 -(((
1469 -—Increase the separation between the equipment and receiver.
1470 -)))
1042 +**XXX:**
1471 1471  
1472 -(((
1473 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1474 -)))
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
1475 1475  
1476 -(((
1477 -—Consult the dealer or an experienced radio/TV technician for help.
1478 -)))
1055 +1. Packing Info
1479 1479  
1480 -(((
1481 -
1482 -)))
1057 +**Package Includes**:
1483 1483  
1484 -(((
1485 -**FCC Radiation Exposure Statement:**
1486 -)))
1059 +* RS485-BL x 1
1060 +* Stick Antenna for LoRa RF part x 1
1061 +* Program cable x 1
1487 1487  
1488 -(((
1489 -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.
1490 -)))
1063 +**Dimension and weight**:
1491 1491  
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
1492 1492  
1493 -= 11. Support =
1070 +1. Support
1494 1494  
1495 -* (((
1496 -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.
1497 -)))
1498 -* (((
1499 -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]].
1500 -)))
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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