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... ... @@ -6,18 +6,12 @@
6 6  **RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 -
10 -
11 11  **Table of Contents:**
12 12  
13 -{{toc/}}
14 14  
15 15  
16 16  
17 17  
18 -
19 -
20 -
21 21  = 1.Introduction =
22 22  
23 23  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
... ... @@ -24,33 +24,23 @@
24 24  
25 25  (((
26 26  (((
27 -(((
28 28  The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
29 29  )))
30 -)))
31 31  
32 32  (((
33 -(((
34 34  RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
35 35  )))
36 -)))
37 37  
38 38  (((
39 -(((
40 40  (% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
41 41  )))
42 -)))
43 43  
44 44  (((
45 -(((
46 46  (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
47 -)))
48 48  
49 -(((
50 50  (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
51 51  )))
52 52  )))
53 -)))
54 54  
55 55  [[image:1653267211009-519.png||height="419" width="724"]]
56 56  
... ... @@ -90,7 +90,7 @@
90 90  * Preamble detection.
91 91  * 127 dB Dynamic Range RSSI.
92 92  * Automatic RF Sense and CAD with ultra-fast AFC.
93 -* Packet engine up to 256 bytes with CRC
77 +* Packet engine up to 256 bytes with CRC.
94 94  
95 95  
96 96  == 1.3 Features ==
... ... @@ -124,13 +124,9 @@
124 124  
125 125  (((
126 126  (((
127 -(((
128 128  v1.2: Add External Interrupt Pin.
129 -)))
130 130  
131 -(((
132 132  v1.0: Release
133 -)))
134 134  
135 135  
136 136  )))
... ... @@ -158,9 +158,7 @@
158 158  == 3.1 How it works? ==
159 159  
160 160  (((
161 -(((
162 162  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.
163 -)))
164 164  
165 165  
166 166  )))
... ... @@ -184,7 +184,7 @@
184 184  [[image:1653268227651-549.png||height="592" width="720"]]
185 185  
186 186  (((
187 -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:
165 +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:
188 188  )))
189 189  
190 190  (((
... ... @@ -236,15 +236,11 @@
236 236  
237 237  (((
238 238  (((
239 -(((
240 -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.
217 +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.
241 241  )))
242 -)))
243 243  
244 244  (((
245 -(((
246 246  (% 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
247 -)))
248 248  
249 249  
250 250  )))
... ... @@ -254,19 +254,19 @@
254 254  
255 255  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:
256 256  
257 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
258 -|=(% style="width: 110px;" %)(((
231 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
232 +|(% style="width:128px" %)(((
259 259  **AT Commands**
260 -)))|=(% style="width: 190px;" %)(((
234 +)))|(% style="width:305px" %)(((
261 261  **Description**
262 -)))|=(% style="width: 190px;" %)(((
236 +)))|(% style="width:346px" %)(((
263 263  **Example**
264 264  )))
265 -|(% style="width:110px" %)(((
239 +|(% style="width:128px" %)(((
266 266  AT+BAUDR
267 -)))|(% style="width:190px" %)(((
241 +)))|(% style="width:305px" %)(((
268 268  Set the baud rate (for RS485 connection). Default Value is: 9600.
269 -)))|(% style="width:190px" %)(((
243 +)))|(% style="width:346px" %)(((
270 270  (((
271 271  AT+BAUDR=9600
272 272  )))
... ... @@ -275,11 +275,11 @@
275 275  Options: (1200,2400,4800,14400,19200,115200)
276 276  )))
277 277  )))
278 -|(% style="width:110px" %)(((
252 +|(% style="width:128px" %)(((
279 279  AT+PARITY
280 -)))|(% style="width:190px" %)(((
254 +)))|(% style="width:305px" %)(((
281 281  Set UART parity (for RS485 connection)
282 -)))|(% style="width:190px" %)(((
256 +)))|(% style="width:346px" %)(((
283 283  (((
284 284  AT+PARITY=0
285 285  )))
... ... @@ -288,9 +288,9 @@
288 288  Option: 0: no parity, 1: odd parity, 2: even parity
289 289  )))
290 290  )))
291 -|(% style="width:110px" %)(((
265 +|(% style="width:128px" %)(((
292 292  AT+STOPBIT
293 -)))|(% style="width:190px" %)(((
267 +)))|(% style="width:305px" %)(((
294 294  (((
295 295  Set serial stopbit (for RS485 connection)
296 296  )))
... ... @@ -298,7 +298,7 @@
298 298  (((
299 299  
300 300  )))
301 -)))|(% style="width:190px" %)(((
275 +)))|(% style="width:346px" %)(((
302 302  (((
303 303  AT+STOPBIT=0 for 1bit
304 304  )))
... ... @@ -313,7 +313,6 @@
313 313  )))
314 314  
315 315  
316 -
317 317  === 3.3.2 Configure sensors ===
318 318  
319 319  (((
... ... @@ -322,16 +322,17 @@
322 322  )))
323 323  )))
324 324  
325 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
326 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
327 -|AT+CFGDEV|(% style="width:110px" %)(((
298 +(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
299 +|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
300 +|AT+CFGDEV|(% style="width:418px" %)(((
328 328  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
329 329  
330 330  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
331 331  
332 332  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
333 -)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
306 +)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
334 334  
308 +
335 335  === 3.3.3 Configure read commands for each sampling ===
336 336  
337 337  (((
... ... @@ -377,8 +377,8 @@
377 377  
378 378  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
379 379  
380 -(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
381 -|(% style="width:510px" %)(((
354 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
355 +|(% style="width:722px" %)(((
382 382  **AT+DATACUTx=a,b,c**
383 383  
384 384  * **a: length for the return of AT+COMMAND**
... ... @@ -438,7 +438,7 @@
438 438  [[image:1653269759169-150.png||height="513" width="716"]]
439 439  
440 440  
441 -(% style="color:#037691" %)**Examples: AT+DATAUP=1**
415 +(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
442 442  
443 443  
444 444  Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
... ... @@ -447,1027 +447,700 @@
447 447  
448 448  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
449 449  
424 +1. Battery Info (2 bytes): Battery voltage
425 +1. PAYVER (1 byte): Defined by AT+PAYVER
426 +1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
427 +1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
428 +1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
450 450  
451 -1. PAYVER: Defined by AT+PAYVER
452 -1. PAYLOAD COUNT: Total how many uplinks of this sampling.
453 -1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
454 -1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
430 +[[image:1653269916228-732.png||height="433" width="711"]]
455 455  
456 -[[image:image-20220602155039-4.png]]
457 457  
433 +So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
458 458  
459 -So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
435 +DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
460 460  
461 -DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
437 +DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
462 462  
463 -DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
439 +DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
464 464  
465 -DATA3=the rest of Valid value of RETURN10= **30**
441 +Below are the uplink payloads:
466 466  
443 +[[image:1653270130359-810.png]]
467 467  
468 -(% style="color:red" %)Notice: In firmware v1.3, the Max bytes has been changed according to the max bytes in different Frequency Bands for lowest SF. As below:
469 469  
470 - ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
446 +(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
471 471  
472 - * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
448 + ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
473 473  
474 - * For US915 band, max 11 bytes for each uplink.
450 + * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
475 475  
476 - ~* For all other bands: max 51 bytes for each uplink.
452 + * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
477 477  
454 + ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
478 478  
479 -Below are the uplink payloads:
456 +=== 3.3.5 Uplink on demand ===
480 480  
481 -[[image:1654157178836-407.png]]
458 +Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
482 482  
460 +Downlink control command:
483 483  
484 -=== 3.3.5 Uplink on demand ===
462 +[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
485 485  
486 -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.
464 +[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
487 487  
488 -Downlink control command:
489 489  
490 -**0x08 command**: Poll an uplink with current command set in RS485-LN.
491 491  
492 -**0xA8 command**: Send a command to RS485-LN and uplink the output from sensors.
468 +1.
469 +11.
470 +111. Uplink on Interrupt
493 493  
472 +Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
494 494  
474 +AT+INTMOD=0  Disable Interrupt
495 495  
496 -=== 3.3.6 Uplink on Interrupt ===
476 +AT+INTMOD=1  Interrupt trigger by rising or falling edge.
497 497  
498 -RS485-LN support external Interrupt uplink since hardware v1.2 release.
478 +AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
499 499  
500 -[[image:1654157342174-798.png]]
480 +AT+INTMOD=3  Interrupt trigger by rising edge.
501 501  
502 -Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
503 503  
483 +1.
484 +11. Uplink Payload
504 504  
505 -== 3.4 Uplink Payload ==
486 +|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
487 +|Value|(((
488 +Battery(mV)
506 506  
490 +&
507 507  
508 -[[image:image-20220606110929-1.png]]
492 +Interrupt _Flag
493 +)))|(((
494 +PAYLOAD_VER
509 509  
496 +
497 +)))|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.
498 +
510 510  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
511 511  
512 512  
513 -== 3.5 Configure RS485-BL via AT or Downlink ==
502 +function Decoder(bytes, port) {
514 514  
515 -(((
516 -User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
517 -)))
504 +~/~/Payload Formats of RS485-BL Deceive
518 518  
519 -(((
506 +return {
507 +
508 + ~/~/Battery,units:V
509 +
510 + BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
511 +
512 + ~/~/GPIO_EXTI 
513 +
514 + EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
515 +
516 + ~/~/payload of version
517 +
518 + Pay_ver:bytes[2],
519 +
520 + };
521 +
522 + }
523 +
524 +
525 +
526 +
527 +
528 +
529 +
530 +TTN V3 uplink screen shot.
531 +
532 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
533 +
534 +1.
535 +11. Configure RS485-BL via AT or Downlink
536 +
537 +User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
538 +
520 520  There are two kinds of Commands:
521 -)))
522 522  
523 -* (((
524 -(% 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]]
525 -)))
541 +* **Common Commands**: They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
526 526  
527 -* (((
528 -(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
529 -)))
543 +* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
530 530  
531 -(((
532 -
533 -)))
545 +1.
546 +11.
547 +111. Common Commands:
534 534  
549 +They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
535 535  
536 -=== 3.5.1 Common Commands ===
537 537  
538 -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]]
552 +1.
553 +11.
554 +111. Sensor related commands:
539 539  
556 +==== Choose Device Type (RS485 or TTL) ====
540 540  
541 -=== 3.5.2 Sensor related commands ===
558 +RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
542 542  
543 -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.
560 +* AT Command
544 544  
545 -[[image:image-20220602163333-5.png||height="263" width="1160"]]
562 +**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
546 546  
547 -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)
564 +**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
548 548  
549 549  
550 -=== 3.5.3 Sensor related commands ===
567 +* Downlink Payload
551 551  
569 +**0A aa**     à same as AT+MOD=aa
552 552  
553 553  
554 554  
555 -==== **RS485 Debug Command** ====
573 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
556 556  
557 -(((
558 -This command is used to configure the RS485 devices; they won’t be used during sampling.
559 -)))
575 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
560 560  
561 -* (((
562 -**AT Command**
563 -)))
577 +* AT Command
564 564  
565 -(% class="box infomessage" %)
566 -(((
567 -(((
568 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
569 -)))
570 -)))
579 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
571 571  
572 -(((
573 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
574 -)))
581 +m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
575 575  
576 -* (((
577 -**Downlink Payload**
578 -)))
579 579  
580 -(((
584 +
585 +* Downlink Payload
586 +
581 581  Format: A8 MM NN XX XX XX XX YY
582 -)))
583 583  
584 -(((
585 585  Where:
586 -)))
587 587  
588 -* (((
589 -MM: 1: add CRC-16/MODBUS ; 0: no CRC
590 -)))
591 -* (((
592 -NN: The length of RS485 command
593 -)))
594 -* (((
595 -XX XX XX XX: RS485 command total NN bytes
596 -)))
597 -* (((
598 -(((
599 -YY: How many bytes will be uplink from the return of this RS485 command,
600 -)))
591 +* MM: 1: add CRC-16/MODBUS ; 0: no CRC
592 +* NN: The length of RS485 command
593 +* XX XX XX XX: RS485 command total NN bytes
594 +* 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
601 601  
602 -* (((
603 -if YY=0, RS485-LN will execute the downlink command without uplink;
604 -)))
605 -* (((
606 -if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
607 -)))
608 -* (((
609 -if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
610 -)))
611 -)))
596 +**Example 1:**
612 612  
613 -(((
614 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
615 -)))
616 -
617 -(((
618 618  To connect a Modbus Alarm with below commands.
619 -)))
620 620  
621 -* (((
622 -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.
623 -)))
600 +* 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.
624 624  
625 -* (((
626 -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.
627 -)))
602 +* 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.
628 628  
629 -(((
630 630  So if user want to use downlink command to control to RS485 Alarm, he can use:
631 -)))
632 632  
633 -(((
634 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
635 -)))
606 +**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
636 636  
637 -(((
638 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
639 -)))
608 +**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
640 640  
641 -(((
642 642  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.
643 -)))
644 644  
645 -(((
646 -
647 -)))
648 648  
649 -(((
650 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
651 -)))
613 +**Example 2:**
652 652  
653 -(((
654 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
655 -)))
615 +Check TTL Sensor return:
656 656  
657 -(((
658 -
659 -)))
617 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
660 660  
661 -(((
662 -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:
663 -)))
664 664  
665 -(((
666 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
667 -)))
668 668  
669 -(((
670 - [[image:1654159460680-153.png]]
671 -)))
672 672  
622 +==== Set Payload version ====
673 673  
674 -
675 -
676 -==== **Set Payload version** ====
677 -
678 -(((
679 679  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.
680 -)))
681 681  
682 -* (((
683 -**AT Command:**
684 -)))
626 +* AT Command:
685 685  
686 -(% class="box infomessage" %)
687 -(((
688 -(((
689 -**AT+PAYVER: Set PAYVER field = 1**
690 -)))
691 -)))
628 +AT+PAYVER: Set PAYVER field = 1
692 692  
693 -* (((
694 -**Downlink Payload:**
695 -)))
696 696  
697 -(((
698 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
699 -)))
631 +* Downlink Payload:
700 700  
701 -(((
702 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
703 -)))
633 +0xAE 01   à Set PAYVER field =  0x01
704 704  
635 +0xAE 0F   à Set PAYVER field =  0x0F
705 705  
706 706  
638 +==== Set RS485 Sampling Commands ====
707 707  
708 -==== **Set RS485 Sampling Commands** ====
640 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
709 709  
710 -(((
711 -AT+COMMANDx or AT+DATACUTx
712 -)))
642 +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]].
713 713  
714 -(((
715 -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"]].
716 -)))
717 717  
718 -(((
719 -
720 -)))
645 +* AT Command:
721 721  
722 -* (((
723 -**AT Command:**
724 -)))
647 +AT+COMMANDx: Configure RS485 read command to sensor.
725 725  
726 -(% class="box infomessage" %)
727 -(((
728 -(((
729 -**AT+COMMANDx: Configure RS485 read command to sensor.**
730 -)))
731 -)))
649 +AT+DATACUTx: Configure how to handle return from RS485 devices.
732 732  
733 -(% class="box infomessage" %)
734 -(((
735 -(((
736 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
737 -)))
738 -)))
651 +AT+SEARCHx: Configure search command
739 739  
740 -(((
741 -
742 -)))
743 743  
744 -* (((
745 -**Downlink Payload:**
746 -)))
654 +* Downlink Payload:
747 747  
748 -(((
749 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
750 -)))
656 +0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
751 751  
752 -(((
753 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
754 -)))
658 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
755 755  
756 -(((
757 757  Format: AF MM NN LL XX XX XX XX YY
758 -)))
759 759  
760 -(((
761 761  Where:
762 -)))
763 763  
764 -* (((
765 -MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
766 -)))
767 -* (((
768 -NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
769 -)))
770 -* (((
771 -LL:  The length of AT+COMMAND or AT+DATACUT command
772 -)))
773 -* (((
774 -XX XX XX XX: AT+COMMAND or AT+DATACUT command
775 -)))
776 -* (((
777 -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.
778 -)))
664 +* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
665 +* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
666 +* LL: The length of AT+COMMAND or AT+DATACUT command
667 +* XX XX XX XX: AT+COMMAND or AT+DATACUT command
668 +* 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.
779 779  
780 -(((
781 -**Example:**
782 -)))
670 +Example:
783 783  
784 -(((
785 -(% 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
786 -)))
672 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
787 787  
788 -(((
789 -(% 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**
790 -)))
674 +**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
791 791  
792 -(((
793 -(% 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**
794 -)))
676 +**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
795 795  
796 796  
679 +0xAB downlink command can be used for set AT+SEARCHx
797 797  
681 +Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
798 798  
799 -==== **Fast command to handle MODBUS device** ====
683 +* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
684 +* 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
800 800  
801 -(((
802 -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]].
803 -)))
686 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
804 804  
805 -(((
806 -This command is valid since v1.3 firmware version
807 -)))
808 808  
809 -(((
810 -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.
811 -)))
689 +==== Fast command to handle MODBUS device ====
812 812  
813 -(((
814 -
815 -)))
691 +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]].
816 816  
817 -(((
818 -**Example:**
819 -)))
693 +This command is valid since v1.3 firmware version
820 820  
821 -* (((
822 -AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
823 -)))
824 -* (((
825 -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.
826 -)))
827 -* (((
828 -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.
829 -)))
830 830  
831 -[[image:image-20220602165351-6.png]]
696 +AT+MBFUN has only two value:
832 832  
833 -[[image:image-20220602165351-7.png]]
698 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
834 834  
700 +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.
835 835  
702 +* AT+MBFUN=0: Disable Modbus fast reading.
836 836  
704 +Example:
837 837  
838 -==== **RS485 command timeout** ====
706 +* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
707 +* 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.
708 +* AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
839 839  
840 -(((
841 -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.
842 -)))
710 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
843 843  
844 -(((
845 -Default value: 0, range:  0 ~~ 65 seconds
846 -)))
847 847  
848 -* (((
849 -**AT Command:**
850 -)))
713 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
851 851  
852 -(% class="box infomessage" %)
853 -(((
854 -(((
855 -**AT+CMDDLaa=hex(bb cc)*1000**
856 -)))
857 -)))
858 858  
859 -(((
860 -**Example:**
861 -)))
716 +* Downlink Commands:
862 862  
863 -(((
864 -**AT+CMDDL1=1000** to send the open time to 1000ms
865 -)))
718 +A9 aa -à Same as AT+MBFUN=aa
866 866  
867 -(((
868 -
869 -)))
870 870  
871 -* (((
872 -**Downlink Payload:**
873 -)))
721 +==== RS485 command timeout ====
874 874  
875 -(((
876 -**0x AA aa bb cc**
877 -)))
723 +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.
878 878  
879 -(((
880 -Same as: AT+CMDDLaa=hex(bb cc)*1000
881 -)))
725 +Default value: 0, range:  0 ~~ 5 seconds
882 882  
883 -(((
884 - **Example:**
885 -)))
886 886  
887 -(((
888 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
889 -)))
728 +* AT Command:
890 890  
730 +AT+CMDDLaa=hex(bb cc)
891 891  
732 +Example:
892 892  
734 +**AT+CMDDL1=1000** to send the open time to 1000ms
893 893  
894 -==== **Uplink payload mode** ====
895 895  
896 -(((
897 -Define to use one uplink or multiple uplinks for the sampling.
898 -)))
737 +* Downlink Payload:
899 899  
900 -(((
901 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
902 -)))
739 +0x AA aa bb cc
903 903  
904 -* (((
905 -**AT Command:**
906 -)))
741 +Same as: AT+CMDDLaa=hex(bb cc)
907 907  
908 -(% class="box infomessage" %)
909 -(((
910 -(((
911 -**AT+DATAUP=0**
912 -)))
913 -)))
743 + Example:
914 914  
915 -(% class="box infomessage" %)
916 -(((
917 -(((
918 -**AT+DATAUP=1**
919 -)))
920 -)))
745 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
921 921  
922 -(((
923 -
924 -)))
925 925  
926 -* (((
927 -**Downlink Payload:**
928 -)))
748 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
929 929  
930 -(((
931 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
932 -)))
750 +Define to use one uplink or multiple uplinks for the sampling.
933 933  
934 -(((
935 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
936 -)))
752 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
937 937  
754 +* AT Command:
938 938  
756 +AT+DATAUP=0
939 939  
758 +AT+DATAUP=1
940 940  
941 -==== **Manually trigger an Uplink** ====
942 942  
943 -(((
944 -Ask device to send an uplink immediately.
945 -)))
761 +* Downlink Payload:
946 946  
947 -* (((
948 -**AT Command:**
949 -)))
763 +0xAD 00   à Same as AT+DATAUP=0
950 950  
951 -(((
952 -No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
953 -)))
765 +0xAD 01   à Same as AT+DATAUP=1
954 954  
955 -(((
956 -
957 -)))
958 958  
959 -* (((
960 -**Downlink Payload:**
961 -)))
768 +==== Manually trigger an Uplink ====
962 962  
963 -(((
964 -**0x08 FF**, RS485-LN will immediately send an uplink.
965 -)))
770 +Ask device to send an uplink immediately.
966 966  
772 +* Downlink Payload:
967 967  
774 +0x08 FF, RS485-BL will immediately send an uplink.
968 968  
969 969  
970 -==== **Clear RS485 Command** ====
777 +==== Clear RS485 Command ====
971 971  
972 -(((
973 973  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
974 -)))
975 975  
976 -* (((
977 -**AT Command:**
978 -)))
979 979  
980 -(((
782 +* AT Command:
783 +
981 981  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
982 -)))
983 983  
984 -(((
985 985  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
986 -)))
987 987  
988 -(((
989 989  Example screen shot after clear all RS485 commands. 
990 -)))
991 991  
992 -(((
993 -
994 -)))
995 995  
996 -(((
791 +
997 997  The uplink screen shot is:
998 -)))
999 999  
1000 -[[image:1654160691922-496.png]]
794 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1001 1001  
1002 1002  
1003 -* (((
1004 -**Downlink Payload:**
1005 -)))
797 +* Downlink Payload:
1006 1006  
1007 -(((
1008 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
1009 -)))
799 +0x09 aa bb same as AT+CMDEAR=aa,bb
1010 1010  
1011 1011  
802 +==== Set Serial Communication Parameters ====
1012 1012  
1013 -
1014 -==== **Set Serial Communication Parameters** ====
1015 -
1016 -(((
1017 1017  Set the Rs485 serial communication parameters:
1018 -)))
1019 1019  
1020 -* (((
1021 -**AT Command:**
1022 -)))
806 +* AT Command:
1023 1023  
1024 -(((
1025 1025  Set Baud Rate:
1026 -)))
1027 1027  
1028 -(% class="box infomessage" %)
1029 -(((
1030 -(((
1031 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1032 -)))
1033 -)))
810 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1034 1034  
1035 -(((
1036 -Set UART Parity
1037 -)))
1038 1038  
1039 -(% class="box infomessage" %)
1040 -(((
1041 -(((
1042 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1043 -)))
1044 -)))
813 +Set UART parity
1045 1045  
1046 -(((
815 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
816 +
817 +
1047 1047  Set STOPBIT
1048 -)))
1049 1049  
1050 -(% class="box infomessage" %)
1051 -(((
1052 -(((
1053 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1054 -)))
1055 -)))
820 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1056 1056  
1057 -(((
1058 -
1059 -)))
1060 1060  
1061 -* (((
1062 -**Downlink Payload:**
1063 -)))
823 +* Downlink Payload:
1064 1064  
1065 -(((
1066 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1067 -)))
825 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1068 1068  
1069 -(((
1070 -**Example:**
1071 -)))
827 +Example:
1072 1072  
1073 -* (((
1074 -A7 01 00 60   same as AT+BAUDR=9600
1075 -)))
1076 -* (((
1077 -A7 01 04 80  same as AT+BAUDR=115200
1078 -)))
829 +* A7 01 00 60   same as AT+BAUDR=9600
830 +* A7 01 04 80  same as AT+BAUDR=115200
1079 1079  
1080 -(((
1081 1081  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1082 -)))
1083 1083  
1084 -(((
1085 1085  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1086 -)))
1087 1087  
1088 1088  
837 +==== Control output power duration ====
1089 1089  
839 +User can set the output power duration before each sampling.
1090 1090  
1091 -== 3.6 Listening mode for RS485 network ==
841 +* AT Command:
1092 1092  
1093 -(((
1094 -This feature support since firmware v1.4
1095 -)))
843 +Example:
1096 1096  
1097 -(((
1098 -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.
1099 -)))
845 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1100 1100  
1101 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
847 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1102 1102  
1103 -(((
1104 -To enable the listening mode, use can run the command AT+RXMODE.
1105 -)))
1106 1106  
1107 -(((
1108 -
1109 -)))
850 +* LoRaWAN Downlink Command:
1110 1110  
1111 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1112 -|=(% style="width: 161px;" %)(((
1113 -**Command example:**
1114 -)))|=(% style="width: 337px;" %)(((
1115 -**Function**
1116 -)))
1117 -|(% style="width:161px" %)(((
1118 -AT+RXMODE=1,10
1119 -)))|(% style="width:337px" %)(((
1120 -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.
1121 -)))
1122 -|(% style="width:161px" %)(((
1123 -AT+RXMODE=2,500
1124 -)))|(% style="width:337px" %)(((
1125 -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
1126 -)))
1127 -|(% style="width:161px" %)(((
1128 -AT+RXMODE=0,0
1129 -)))|(% style="width:337px" %)(((
1130 -Disable listening mode. This is the default settings.
1131 -)))
1132 -|(% style="width:161px" %)(((
1133 -
1134 -)))|(% style="width:337px" %)(((
1135 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1136 -)))
852 +07 01 aa bb  Same as AT+5VT=(aa bb)
1137 1137  
1138 -(((
1139 -**Downlink Command:**
1140 -)))
854 +07 02 aa bb  Same as AT+3V3T=(aa bb)
1141 1141  
1142 -(((
1143 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1144 -)))
1145 1145  
1146 -(((
1147 -
1148 -)))
1149 1149  
1150 -(((
1151 -**Example**:
1152 -)))
1153 1153  
1154 -(((
1155 -The RS485-LN is set to AT+RXMODE=2,1000
1156 -)))
859 +1.
860 +11. Buttons
1157 1157  
1158 -(((
1159 -There is a two Modbus commands in the RS485 network as below:
1160 -)))
862 +|**Button**|**Feature**
863 +|**RST**|Reboot RS485-BL
1161 1161  
1162 -(((
1163 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1164 -)))
865 +1.
866 +11. +3V3 Output
1165 1165  
1166 -(((
1167 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1168 -)))
868 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1169 1169  
1170 -(((
1171 -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
1172 -)))
870 +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. 
1173 1173  
1174 -(((
1175 -[[image:image-20220602171200-9.png]]
1176 -)))
1177 1177  
1178 -(((
1179 -
1180 -)))
873 +The +3V3 output time can be controlled by AT Command.
1181 1181  
1182 -(((
1183 -(% 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.
1184 -)))
875 +**AT+3V3T=1000**
1185 1185  
877 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1186 1186  
1187 -== 3.7 Buttons ==
1188 1188  
880 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1189 1189  
1190 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1191 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1192 -|(% style="width:50px" %)**ACT**|(% style="width:350px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1193 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1194 -|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1195 1195  
1196 -== 3.8 LEDs ==
883 +1.
884 +11. +5V Output
1197 1197  
886 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1198 1198  
1199 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1200 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1201 -|**PWR**|Always on if there is power
1202 -|**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.
888 +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. 
1203 1203  
1204 -= 4. Case Study =
1205 1205  
1206 -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]]
891 +The 5V output time can be controlled by AT Command.
1207 1207  
893 +**AT+5VT=1000**
1208 1208  
1209 -= 5. Use AT Command =
895 +Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1210 1210  
1211 -== 5.1 Access AT Command ==
1212 1212  
1213 -(((
1214 -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.
1215 -)))
898 +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.
1216 1216  
1217 -[[image:1654162355560-817.png]]
1218 1218  
1219 1219  
1220 -(((
1221 -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:
1222 -)))
1223 1223  
1224 -[[image:1654162368066-342.png]]
903 +1.
904 +11. LEDs
1225 1225  
906 +|**LEDs**|**Feature**
907 +|**LED1**|Blink when device transmit a packet.
1226 1226  
1227 -(((
1228 -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/]]
909 +1.
910 +11. Switch Jumper
911 +
912 +|**Switch Jumper**|**Feature**
913 +|**SW1**|(((
914 +ISP position: Upgrade firmware via UART
915 +
916 +Flash position: Configure device, check running status.
1229 1229  )))
918 +|**SW2**|(((
919 +5V position: set to compatible with 5v I/O.
1230 1230  
921 +3.3v position: set to compatible with 3.3v I/O.,
922 +)))
1231 1231  
924 ++3.3V: is always ON
1232 1232  
1233 -== 5.2 Common AT Command Sequence ==
926 ++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1234 1234  
1235 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
928 +1. Case Study
1236 1236  
1237 -If device has not joined network yet:
930 +User can check this URL for some case studies.
1238 1238  
1239 -(% class="box infomessage" %)
1240 -(((
1241 -**AT+FDR**
1242 -)))
932 +[[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]]
1243 1243  
1244 -(% class="box infomessage" %)
1245 -(((
1246 -**AT+NJM=0**
1247 -)))
1248 1248  
1249 -(% class="box infomessage" %)
1250 -(((
1251 -**ATZ**
1252 -)))
1253 1253  
1254 1254  
1255 -If device already joined network:
937 +1. Use AT Command
938 +11. Access AT Command
1256 1256  
1257 -(% class="box infomessage" %)
1258 -(((
1259 -**AT+NJM=0**
1260 -)))
940 +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.
1261 1261  
1262 -(% class="box infomessage" %)
1263 -(((
1264 -**ATZ**
1265 -)))
942 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1266 1266  
1267 1267  
1268 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
945 +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:
1269 1269  
947 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1270 1270  
1271 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1272 1272  
1273 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1274 1274  
1275 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
951 +More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1276 1276  
1277 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1278 1278  
1279 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1280 1280  
1281 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
955 +1.
956 +11. Common AT Command Sequence
957 +111. Multi-channel ABP mode (Use with SX1301/LG308)
1282 1282  
1283 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
959 +If device has not joined network yet:
1284 1284  
1285 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
961 +AT+FDR
1286 1286  
1287 -(% 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.
963 +AT+NJM=0
1288 1288  
1289 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
965 +ATZ
1290 1290  
1291 1291  
1292 -(% style="color:red" %)**Note:**
968 +If device already joined network:
1293 1293  
1294 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1295 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1296 -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.
1297 -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
970 +AT+NJM=0
1298 1298  
1299 -[[image:1654162478620-421.png]]
972 +ATZ
1300 1300  
974 +1.
975 +11.
976 +111. Single-channel ABP mode (Use with LG01/LG02)
1301 1301  
1302 -= 6. FAQ =
978 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1303 1303  
1304 -== 6.1 How to upgrade the image? ==
980 +AT+NJM=0 Set to ABP mode
1305 1305  
1306 -(((
1307 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1308 -)))
982 +AT+ADR=0 Set the Adaptive Data Rate Off
1309 1309  
1310 -* (((
1311 -Support new features
1312 -)))
1313 -* (((
1314 -For bug fix
1315 -)))
1316 -* (((
1317 -Change LoRaWAN bands.
1318 -)))
984 +AT+DR=5  Set Data Rate
1319 1319  
1320 -(((
1321 -Below shows the hardware connection for how to upload an image to RS485-LN:
1322 -)))
986 +AT+TDC=60000  Set transmit interval to 60 seconds
1323 1323  
1324 -[[image:1654162535040-878.png]]
988 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1325 1325  
1326 -**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]].
990 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1327 1327  
1328 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
992 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1329 1329  
1330 -**Step3: **Open flashloader; choose the correct COM port to update.
994 +AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1331 1331  
1332 -(((
1333 -(((
1334 -(% 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.
1335 -)))
1336 -)))
996 +ATZ          Reset MCU
1337 1337  
998 +**Note:**
1338 1338  
1339 -[[image:image-20220602175818-12.png]]
1000 +1. Make sure the device is set to ABP mode in the IoT Server.
1001 +1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1002 +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.
1003 +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
1340 1340  
1005 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1341 1341  
1342 -[[image:image-20220602175848-13.png]]
1343 1343  
1008 +1. FAQ
1009 +11. How to upgrade the image?
1344 1344  
1345 -[[image:image-20220602175912-14.png]]
1011 +The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1346 1346  
1013 +* Support new features
1014 +* For bug fix
1015 +* Change LoRaWAN bands.
1347 1347  
1348 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1017 +Below shows the hardware connection for how to upload an image to RS485-BL:
1349 1349  
1350 -[[image:image-20220602175638-10.png]]
1019 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1351 1351  
1021 +**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]].
1352 1352  
1353 -== 6.2 How to change the LoRa Frequency Bands/Region? ==
1023 +**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1354 1354  
1355 -User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1025 +**Step3: **Open flashloader; choose the correct COM port to update.
1356 1356  
1357 1357  
1358 -== 6.3 How many RS485-Slave can RS485-BL connects? ==
1028 +|(((
1029 +HOLD PRO then press the RST button, SYS will be ON, then click next
1030 +)))
1359 1359  
1360 -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"]].
1032 +|(((
1033 +Board detected
1034 +)))
1361 1361  
1036 +|(((
1037 +
1038 +)))
1362 1362  
1363 -== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1040 +[[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]]
1364 1364  
1365 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1366 1366  
1367 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1368 1368  
1044 +[[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]]
1369 1369  
1370 -= 7. Trouble Shooting =
1371 1371  
1372 -== 7.1 Downlink doesn’t work, how to solve it? ==
1047 +[[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]]
1373 1373  
1374 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1375 1375  
1050 +1.
1051 +11. How to change the LoRa Frequency Bands/Region?
1376 1376  
1377 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1053 +User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1378 1378  
1379 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1380 1380  
1381 1381  
1382 -= 8. Order Info =
1057 +1.
1058 +11. How many RS485-Slave can RS485-BL connects?
1383 1383  
1384 -(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1060 +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]].
1385 1385  
1386 -(% style="color:blue" %)**XXX:**
1387 1387  
1388 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1389 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1390 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1391 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1392 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1393 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1394 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1395 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1396 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1397 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1398 1398  
1399 -= 9.Packing Info =
1400 1400  
1065 +1. Trouble Shooting     
1066 +11. Downlink doesn’t work, how to solve it?
1401 1401  
1402 -**Package Includes**:
1068 +Please see this link for debug:
1403 1403  
1404 -* RS485-LN x 1
1405 -* Stick Antenna for LoRa RF part x 1
1406 -* Program cable x 1
1070 +[[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]] 
1407 1407  
1408 -**Dimension and weight**:
1409 1409  
1410 -* Device Size: 13.5 x 7 x 3 cm
1411 -* Device Weight: 105g
1412 -* Package Size / pcs : 14.5 x 8 x 5 cm
1413 -* Weight / pcs : 170g
1414 1414  
1415 -= 10. FCC Caution for RS485LN-US915 =
1074 +1.
1075 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1416 1416  
1417 -(((
1418 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1419 -)))
1077 +It might about the channels mapping. Please see for detail.
1420 1420  
1421 -(((
1422 -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.
1423 -)))
1079 +[[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]]
1424 1424  
1425 -(((
1426 -
1427 -)))
1428 1428  
1429 -(((
1430 -**IMPORTANT NOTE:**
1431 -)))
1432 1432  
1433 -(((
1434 -**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:
1435 -)))
1083 +1. Order Info
1436 1436  
1437 -(((
1438 -—Reorient or relocate the receiving antenna.
1439 -)))
1085 +**Part Number: RS485-BL-XXX**
1440 1440  
1441 -(((
1442 -—Increase the separation between the equipment and receiver.
1443 -)))
1087 +**XXX:**
1444 1444  
1445 -(((
1446 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1447 -)))
1089 +* **EU433**: frequency bands EU433
1090 +* **EU868**: frequency bands EU868
1091 +* **KR920**: frequency bands KR920
1092 +* **CN470**: frequency bands CN470
1093 +* **AS923**: frequency bands AS923
1094 +* **AU915**: frequency bands AU915
1095 +* **US915**: frequency bands US915
1096 +* **IN865**: frequency bands IN865
1097 +* **RU864**: frequency bands RU864
1098 +* **KZ865: **frequency bands KZ865
1448 1448  
1449 -(((
1450 -—Consult the dealer or an experienced radio/TV technician for help.
1451 -)))
1100 +1. Packing Info
1452 1452  
1453 -(((
1454 -
1455 -)))
1102 +**Package Includes**:
1456 1456  
1457 -(((
1458 -**FCC Radiation Exposure Statement:**
1459 -)))
1104 +* RS485-BL x 1
1105 +* Stick Antenna for LoRa RF part x 1
1106 +* Program cable x 1
1460 1460  
1461 -(((
1462 -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.
1463 -)))
1108 +**Dimension and weight**:
1464 1464  
1110 +* Device Size: 13.5 x 7 x 3 cm
1111 +* Device Weight: 105g
1112 +* Package Size / pcs : 14.5 x 8 x 5 cm
1113 +* Weight / pcs : 170g
1465 1465  
1466 -= 11. Support =
1115 +1. Support
1467 1467  
1468 -* (((
1469 -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.
1470 -)))
1471 -* (((
1472 -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]].
1473 -)))
1117 +* 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.
1118 +* 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
1119 +
1120 +[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
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