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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  
... ... @@ -93,10 +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 -
100 100  == 1.3 Features ==
101 101  
102 102  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -108,8 +108,6 @@
108 108  * Support Modbus protocol
109 109  * Support Interrupt uplink (Since hardware version v1.2)
110 110  
111 -
112 -
113 113  == 1.4 Applications ==
114 114  
115 115  * Smart Buildings & Home Automation
... ... @@ -119,8 +119,6 @@
119 119  * Smart Cities
120 120  * Smart Factory
121 121  
122 -
123 -
124 124  == 1.5 Firmware Change log ==
125 125  
126 126  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -130,13 +130,9 @@
130 130  
131 131  (((
132 132  (((
133 -(((
134 134  v1.2: Add External Interrupt Pin.
135 -)))
136 136  
137 -(((
138 138  v1.0: Release
139 -)))
140 140  
141 141  
142 142  )))
... ... @@ -164,9 +164,7 @@
164 164  == 3.1 How it works? ==
165 165  
166 166  (((
167 -(((
168 168  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.
169 -)))
170 170  
171 171  
172 172  )))
... ... @@ -189,13 +189,12 @@
189 189  
190 190  [[image:1653268227651-549.png||height="592" width="720"]]
191 191  
192 -
193 193  (((
194 -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:
195 195  )))
196 196  
197 197  (((
198 -(% 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.
199 199  )))
200 200  
201 201  (((
... ... @@ -205,7 +205,6 @@
205 205  
206 206  [[image:1652953462722-299.png]]
207 207  
208 -
209 209  (((
210 210  (((
211 211  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
... ... @@ -212,7 +212,7 @@
212 212  )))
213 213  
214 214  (((
215 -**Add APP EUI in the application.**
182 +Add APP EUI in the application.
216 216  )))
217 217  )))
218 218  
... ... @@ -228,15 +228,13 @@
228 228  
229 229  [[image:1652953542269-423.png||height="710" width="723"]]
230 230  
198 +Add APP KEY and DEV EUI
231 231  
232 -
233 -**Add APP KEY and DEV EUI**
234 -
235 235  [[image:1652953553383-907.png||height="514" width="724"]]
236 236  
237 237  
238 238  (((
239 -(% 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.
240 240  )))
241 241  
242 242  [[image:1652953568895-172.png||height="232" width="724"]]
... ... @@ -246,15 +246,11 @@
246 246  
247 247  (((
248 248  (((
249 -(((
250 -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.
251 251  )))
252 -)))
253 253  
254 254  (((
255 -(((
256 256  (% 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
257 -)))
258 258  
259 259  
260 260  )))
... ... @@ -264,19 +264,19 @@
264 264  
265 265  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:
266 266  
267 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
268 -|=(% style="width: 110px;" %)(((
228 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
229 +|(% style="width:128px" %)(((
269 269  **AT Commands**
270 -)))|=(% style="width: 190px;" %)(((
231 +)))|(% style="width:305px" %)(((
271 271  **Description**
272 -)))|=(% style="width: 190px;" %)(((
233 +)))|(% style="width:346px" %)(((
273 273  **Example**
274 274  )))
275 -|(% style="width:110px" %)(((
236 +|(% style="width:128px" %)(((
276 276  AT+BAUDR
277 -)))|(% style="width:190px" %)(((
238 +)))|(% style="width:305px" %)(((
278 278  Set the baud rate (for RS485 connection). Default Value is: 9600.
279 -)))|(% style="width:190px" %)(((
240 +)))|(% style="width:346px" %)(((
280 280  (((
281 281  AT+BAUDR=9600
282 282  )))
... ... @@ -285,11 +285,11 @@
285 285  Options: (1200,2400,4800,14400,19200,115200)
286 286  )))
287 287  )))
288 -|(% style="width:110px" %)(((
249 +|(% style="width:128px" %)(((
289 289  AT+PARITY
290 -)))|(% style="width:190px" %)(((
251 +)))|(% style="width:305px" %)(((
291 291  Set UART parity (for RS485 connection)
292 -)))|(% style="width:190px" %)(((
253 +)))|(% style="width:346px" %)(((
293 293  (((
294 294  AT+PARITY=0
295 295  )))
... ... @@ -298,9 +298,9 @@
298 298  Option: 0: no parity, 1: odd parity, 2: even parity
299 299  )))
300 300  )))
301 -|(% style="width:110px" %)(((
262 +|(% style="width:128px" %)(((
302 302  AT+STOPBIT
303 -)))|(% style="width:190px" %)(((
264 +)))|(% style="width:305px" %)(((
304 304  (((
305 305  Set serial stopbit (for RS485 connection)
306 306  )))
... ... @@ -308,7 +308,7 @@
308 308  (((
309 309  
310 310  )))
311 -)))|(% style="width:190px" %)(((
272 +)))|(% style="width:346px" %)(((
312 312  (((
313 313  AT+STOPBIT=0 for 1bit
314 314  )))
... ... @@ -322,9 +322,6 @@
322 322  )))
323 323  )))
324 324  
325 -
326 -
327 -
328 328  === 3.3.2 Configure sensors ===
329 329  
330 330  (((
... ... @@ -333,21 +333,15 @@
333 333  )))
334 334  )))
335 335  
336 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
337 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
338 -|AT+CFGDEV|(% style="width:110px" %)(((
339 -(((
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" %)(((
340 340  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
341 -)))
342 342  
343 -(((
344 344  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
345 -)))
346 346  
347 -(((
348 348  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
349 -)))
350 -)))|(% 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
351 351  
352 352  === 3.3.3 Configure read commands for each sampling ===
353 353  
... ... @@ -361,7 +361,7 @@
361 361  During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
362 362  
363 363  
364 -(% style="color:#037691" %)**Each RS485 commands include two parts:**
316 +**Each RS485 commands include two parts:**
365 365  
366 366  ~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.
367 367  
... ... @@ -376,11 +376,11 @@
376 376  Below are examples for the how above AT Commands works.
377 377  
378 378  
379 -(% 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:
380 380  
381 381  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
382 382  |(% style="width:496px" %)(((
383 -(% 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**
384 384  
385 385  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
386 386  
... ... @@ -392,10 +392,10 @@
392 392  In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
393 393  
394 394  
395 -(% 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.
396 396  
397 -(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
398 -|(% style="width:510px" %)(((
349 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
350 +|(% style="width:722px" %)(((
399 399  **AT+DATACUTx=a,b,c**
400 400  
401 401  * **a: length for the return of AT+COMMAND**
... ... @@ -405,21 +405,20 @@
405 405  
406 406  **Examples:**
407 407  
408 -* (% style="color:#037691" %)**Grab bytes**
360 +* Grab bytes:
409 409  
410 410  [[image:image-20220602153621-1.png]]
411 411  
412 412  
413 -* (% style="color:#037691" %)**Grab a section**
365 +* Grab a section.
414 414  
415 415  [[image:image-20220602153621-2.png]]
416 416  
417 417  
418 -* (% style="color:#037691" %)**Grab different sections**
370 +* Grab different sections.
419 419  
420 420  [[image:image-20220602153621-3.png]]
421 421  
422 -
423 423  
424 424  )))
425 425  
... ... @@ -465,7 +465,6 @@
465 465  
466 466  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
467 467  
468 -
469 469  1. PAYVER: Defined by AT+PAYVER
470 470  1. PAYLOAD COUNT: Total how many uplinks of this sampling.
471 471  1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
... ... @@ -522,33 +522,33 @@
522 522  
523 523  == 3.4 Uplink Payload ==
524 524  
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)
525 525  
526 -[[image:image-20220606110929-1.png]]
480 +&
527 527  
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 +
528 528  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
529 529  
530 530  
531 -== 3.5 Configure RS485-LN via AT or Downlink ==
492 +== 3.5 Configure RS485-BL via AT or Downlink ==
532 532  
533 -(((
534 534  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
535 -)))
536 536  
537 -(((
538 538  There are two kinds of Commands:
539 -)))
540 540  
541 -* (((
542 -(% 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]]
543 -)))
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]]
544 544  
545 -* (((
546 -(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
547 -)))
500 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
548 548  
549 -(((
550 -
551 -)))
552 552  
553 553  
554 554  === 3.5.1 Common Commands ===
... ... @@ -556,950 +556,570 @@
556 556  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]]
557 557  
558 558  
559 -=== 3.5.2 Sensor related commands ===
509 +=== 3.5.2 Sensor related commands: ===
560 560  
561 -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) ====
562 562  
563 -[[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.
564 564  
565 -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
566 566  
517 +**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
567 567  
568 -=== 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.
569 569  
570 570  
522 +* Downlink Payload
571 571  
524 +**0A aa**     à same as AT+MOD=aa
572 572  
573 -==== **RS485 Debug Command** ====
574 574  
575 -(((
576 -This command is used to configure the RS485 devices; they won’t be used during sampling.
577 -)))
578 578  
579 -* (((
580 -**AT Command**
581 -)))
528 +==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
582 582  
583 -(% class="box infomessage" %)
584 -(((
585 -(((
586 -**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
587 -)))
588 -)))
530 +This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
589 589  
590 -(((
591 -m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
592 -)))
532 +* AT Command
593 593  
594 -* (((
595 -**Downlink Payload**
596 -)))
534 +AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
597 597  
598 -(((
536 +m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
537 +
538 +
539 +
540 +* Downlink Payload
541 +
599 599  Format: A8 MM NN XX XX XX XX YY
600 -)))
601 601  
602 -(((
603 603  Where:
604 -)))
605 605  
606 -* (((
607 -MM: 1: add CRC-16/MODBUS ; 0: no CRC
608 -)))
609 -* (((
610 -NN: The length of RS485 command
611 -)))
612 -* (((
613 -XX XX XX XX: RS485 command total NN bytes
614 -)))
615 -* (((
616 -(((
617 -YY: How many bytes will be uplink from the return of this RS485 command,
618 -)))
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
619 619  
620 -* (((
621 -if YY=0, RS485-LN will execute the downlink command without uplink;
622 -)))
623 -* (((
624 -if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
625 -)))
626 -* (((
627 -if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
628 -)))
629 -)))
551 +**Example 1:**
630 630  
631 -(((
632 -**Example 1** ~-~-> Configure without ask for uplink (YY=0)
633 -)))
634 -
635 -(((
636 636  To connect a Modbus Alarm with below commands.
637 -)))
638 638  
639 -* (((
640 -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.
641 -)))
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.
642 642  
643 -* (((
644 -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.
645 -)))
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.
646 646  
647 -(((
648 648  So if user want to use downlink command to control to RS485 Alarm, he can use:
649 -)))
650 650  
651 -(((
652 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
653 -)))
561 +**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
654 654  
655 -(((
656 -(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
657 -)))
563 +**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
658 658  
659 -(((
660 660  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.
661 -)))
662 662  
663 -(((
664 -
665 -)))
666 666  
667 -(((
668 -**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
669 -)))
568 +**Example 2:**
670 670  
671 -(((
672 -User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
673 -)))
570 +Check TTL Sensor return:
674 674  
675 -(((
676 -
677 -)))
572 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
678 678  
679 -(((
680 -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:
681 -)))
682 682  
683 -(((
684 - **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
685 -)))
686 686  
687 -(((
688 - [[image:1654159460680-153.png]]
689 -)))
690 690  
577 +==== Set Payload version ====
691 691  
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.
692 692  
581 +* AT Command:
693 693  
694 -==== **Set Payload version** ====
583 +AT+PAYVER: Set PAYVER field = 1
695 695  
696 -(((
697 -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.
698 -)))
699 699  
700 -* (((
701 -**AT Command:**
702 -)))
586 +* Downlink Payload:
703 703  
704 -(% class="box infomessage" %)
705 -(((
706 -(((
707 -**AT+PAYVER: Set PAYVER field = 1**
708 -)))
709 -)))
588 +0xAE 01   à Set PAYVER field =  0x01
710 710  
711 -* (((
712 -**Downlink Payload:**
713 -)))
590 +0xAE 0F   à Set PAYVER field =  0x0F
714 714  
715 -(((
716 -**0xAE 01**  ~-~-> Set PAYVER field =  0x01
717 -)))
718 718  
719 -(((
720 -**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
721 -)))
593 +==== Set RS485 Sampling Commands ====
722 722  
595 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
723 723  
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]].
724 724  
725 725  
726 -==== **Set RS485 Sampling Commands** ====
600 +* AT Command:
727 727  
728 -(((
729 -AT+COMMANDx or AT+DATACUTx
730 -)))
602 +AT+COMMANDx: Configure RS485 read command to sensor.
731 731  
732 -(((
733 -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"]].
734 -)))
604 +AT+DATACUTx: Configure how to handle return from RS485 devices.
735 735  
736 -(((
737 -
738 -)))
606 +AT+SEARCHx: Configure search command
739 739  
740 -* (((
741 -**AT Command:**
742 -)))
743 743  
744 -(% class="box infomessage" %)
745 -(((
746 -(((
747 -**AT+COMMANDx: Configure RS485 read command to sensor.**
748 -)))
749 -)))
609 +* Downlink Payload:
750 750  
751 -(% class="box infomessage" %)
752 -(((
753 -(((
754 -**AT+DATACUTx: Configure how to handle return from RS485 devices.**
755 -)))
756 -)))
611 +0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
757 757  
758 -(((
759 -
760 -)))
613 +Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
761 761  
762 -* (((
763 -**Downlink Payload:**
764 -)))
615 +Format: AF MM NN LL XX XX XX XX YY
765 765  
766 -(((
767 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
768 -)))
617 +Where:
769 769  
770 -(((
771 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
772 -)))
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.
773 773  
774 -(((
775 -Format: AF MM NN LL XX XX XX XX YY
776 -)))
625 +Example:
777 777  
778 -(((
779 -Where:
780 -)))
627 +**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
781 781  
782 -* (((
783 -MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
784 -)))
785 -* (((
786 -NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
787 -)))
788 -* (((
789 -LL:  The length of AT+COMMAND or AT+DATACUT command
790 -)))
791 -* (((
792 -XX XX XX XX: AT+COMMAND or AT+DATACUT command
793 -)))
794 -* (((
795 -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.
796 -)))
629 +**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
797 797  
798 -(((
799 -**Example:**
800 -)))
631 +**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
801 801  
802 -(((
803 -(% 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
804 -)))
805 805  
806 -(((
807 -(% 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**
808 -)))
634 +0xAB downlink command can be used for set AT+SEARCHx
809 809  
810 -(((
811 -(% 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**
812 -)))
636 +Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
813 813  
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
814 814  
641 +**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
815 815  
816 816  
817 -==== **Fast command to handle MODBUS device** ====
644 +==== Fast command to handle MODBUS device ====
818 818  
819 -(((
820 820  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]].
821 -)))
822 822  
823 -(((
824 824  This command is valid since v1.3 firmware version
825 -)))
826 826  
827 -(((
828 -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.
829 -)))
830 830  
831 -(((
832 -
833 -)))
651 +AT+MBFUN has only two value:
834 834  
835 -(((
836 -**Example:**
837 -)))
653 +* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
838 838  
839 -* (((
840 -AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
841 -)))
842 -* (((
843 -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.
844 -)))
845 -* (((
846 -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.
847 -)))
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.
848 848  
849 -[[image:image-20220602165351-6.png]]
657 +* AT+MBFUN=0: Disable Modbus fast reading.
850 850  
851 -[[image:image-20220602165351-7.png]]
659 +Example:
852 852  
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.
853 853  
665 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
854 854  
855 855  
856 -==== **RS485 command timeout** ====
668 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
857 857  
858 -(((
859 -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.
860 -)))
861 861  
862 -(((
863 -Default value: 0, range:  0 ~~ 65 seconds
864 -)))
671 +* Downlink Commands:
865 865  
866 -* (((
867 -**AT Command:**
868 -)))
673 +A9 aa -à Same as AT+MBFUN=aa
869 869  
870 -(% class="box infomessage" %)
871 -(((
872 -(((
873 -**AT+CMDDLaa=hex(bb cc)*1000**
874 -)))
875 -)))
876 876  
877 -(((
878 -**Example:**
879 -)))
676 +==== RS485 command timeout ====
880 880  
881 -(((
882 -**AT+CMDDL1=1000** to send the open time to 1000ms
883 -)))
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.
884 884  
885 -(((
886 -
887 -)))
680 +Default value: 0, range:  0 ~~ 5 seconds
888 888  
889 -* (((
890 -**Downlink Payload:**
891 -)))
892 892  
893 -(((
894 -**0x AA aa bb cc**
895 -)))
683 +* AT Command:
896 896  
897 -(((
898 -Same as: AT+CMDDLaa=hex(bb cc)*1000
899 -)))
685 +AT+CMDDLaa=hex(bb cc)
900 900  
901 -(((
902 - **Example:**
903 -)))
687 +Example:
904 904  
905 -(((
906 - 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
907 -)))
689 +**AT+CMDDL1=1000** to send the open time to 1000ms
908 908  
909 909  
692 +* Downlink Payload:
910 910  
694 +0x AA aa bb cc
911 911  
912 -==== **Uplink payload mode** ====
696 +Same as: AT+CMDDLaa=hex(bb cc)
913 913  
914 -(((
915 -Define to use one uplink or multiple uplinks for the sampling.
916 -)))
698 + Example:
917 917  
918 -(((
919 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
920 -)))
700 + 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
921 921  
922 -* (((
923 -**AT Command:**
924 -)))
925 925  
926 -(% class="box infomessage" %)
927 -(((
928 -(((
929 -**AT+DATAUP=0**
930 -)))
931 -)))
703 +==== [[Uplink>>path:#downlink_A8]] payload mode ====
932 932  
933 -(% class="box infomessage" %)
934 -(((
935 -(((
936 -**AT+DATAUP=1**
937 -)))
938 -)))
705 +Define to use one uplink or multiple uplinks for the sampling.
939 939  
940 -(((
941 -
942 -)))
707 +The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
943 943  
944 -* (((
945 -**Downlink Payload:**
946 -)))
709 +* AT Command:
947 947  
948 -(((
949 -**0xAD 00**  **~-~->** Same as AT+DATAUP=0
950 -)))
711 +AT+DATAUP=0
951 951  
952 -(((
953 -**0xAD 01**  **~-~->** Same as AT+DATAUP=1
954 -)))
713 +AT+DATAUP=1
955 955  
956 956  
716 +* Downlink Payload:
957 957  
718 +0xAD 00   à Same as AT+DATAUP=0
958 958  
959 -==== **Manually trigger an Uplink** ====
720 +0xAD 01   à Same as AT+DATAUP=1
960 960  
961 -(((
962 -Ask device to send an uplink immediately.
963 -)))
964 964  
965 -* (((
966 -**AT Command:**
967 -)))
723 +==== Manually trigger an Uplink ====
968 968  
969 -(((
970 -No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
971 -)))
725 +Ask device to send an uplink immediately.
972 972  
973 -(((
974 -
975 -)))
727 +* Downlink Payload:
976 976  
977 -* (((
978 -**Downlink Payload:**
979 -)))
729 +0x08 FF, RS485-BL will immediately send an uplink.
980 980  
981 -(((
982 -**0x08 FF**, RS485-LN will immediately send an uplink.
983 -)))
984 984  
732 +==== Clear RS485 Command ====
985 985  
986 -
987 -
988 -==== **Clear RS485 Command** ====
989 -
990 -(((
991 991  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
992 -)))
993 993  
994 -* (((
995 -**AT Command:**
996 -)))
997 997  
998 -(((
737 +* AT Command:
738 +
999 999  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
1000 -)))
1001 1001  
1002 -(((
1003 1003  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1004 -)))
1005 1005  
1006 -(((
1007 1007  Example screen shot after clear all RS485 commands. 
1008 -)))
1009 1009  
1010 -(((
1011 -
1012 -)))
1013 1013  
1014 -(((
746 +
1015 1015  The uplink screen shot is:
1016 -)))
1017 1017  
1018 -[[image:1654160691922-496.png]]
749 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1019 1019  
1020 1020  
1021 -* (((
1022 -**Downlink Payload:**
1023 -)))
752 +* Downlink Payload:
1024 1024  
1025 -(((
1026 -**0x09 aa bb** same as AT+CMDEAR=aa,bb
1027 -)))
754 +0x09 aa bb same as AT+CMDEAR=aa,bb
1028 1028  
1029 1029  
757 +==== Set Serial Communication Parameters ====
1030 1030  
1031 -
1032 -==== **Set Serial Communication Parameters** ====
1033 -
1034 -(((
1035 1035  Set the Rs485 serial communication parameters:
1036 -)))
1037 1037  
1038 -* (((
1039 -**AT Command:**
1040 -)))
761 +* AT Command:
1041 1041  
1042 -(((
1043 1043  Set Baud Rate:
1044 -)))
1045 1045  
1046 -(% class="box infomessage" %)
1047 -(((
1048 -(((
1049 -**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1050 -)))
1051 -)))
765 +AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1052 1052  
1053 -(((
1054 -Set UART Parity
1055 -)))
1056 1056  
1057 -(% class="box infomessage" %)
1058 -(((
1059 -(((
1060 -**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1061 -)))
1062 -)))
768 +Set UART parity
1063 1063  
1064 -(((
770 +AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
771 +
772 +
1065 1065  Set STOPBIT
1066 -)))
1067 1067  
1068 -(% class="box infomessage" %)
1069 -(((
1070 -(((
1071 -**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1072 -)))
1073 -)))
775 +AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1074 1074  
1075 -(((
1076 -
1077 -)))
1078 1078  
1079 -* (((
1080 -**Downlink Payload:**
1081 -)))
778 +* Downlink Payload:
1082 1082  
1083 -(((
1084 -**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1085 -)))
780 +A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1086 1086  
1087 -(((
1088 -**Example:**
1089 -)))
782 +Example:
1090 1090  
1091 -* (((
1092 -A7 01 00 60   same as AT+BAUDR=9600
1093 -)))
1094 -* (((
1095 -A7 01 04 80  same as AT+BAUDR=115200
1096 -)))
784 +* A7 01 00 60   same as AT+BAUDR=9600
785 +* A7 01 04 80  same as AT+BAUDR=115200
1097 1097  
1098 -(((
1099 1099  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1100 -)))
1101 1101  
1102 -(((
1103 1103  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1104 -)))
1105 1105  
1106 1106  
792 +==== Control output power duration ====
1107 1107  
794 +User can set the output power duration before each sampling.
1108 1108  
1109 -== 3.6 Listening mode for RS485 network ==
796 +* AT Command:
1110 1110  
1111 -(((
1112 -This feature support since firmware v1.4
1113 -)))
798 +Example:
1114 1114  
1115 -(((
1116 -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.
1117 -)))
800 +AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1118 1118  
1119 -[[image:image-20220602171200-8.png||height="567" width="1007"]]
802 +AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1120 1120  
1121 -(((
1122 -To enable the listening mode, use can run the command AT+RXMODE.
1123 -)))
1124 1124  
1125 -(((
1126 -
1127 -)))
805 +* LoRaWAN Downlink Command:
1128 1128  
1129 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1130 -|=(% style="width: 100px;" %)(((
1131 -**Command example**
1132 -)))|=(% style="width: 400px;" %)(((
1133 -**Function**
1134 -)))
1135 -|(% style="width:100px" %)(((
1136 -AT+RXMODE=1,10
1137 -)))|(% style="width:400px" %)(((
1138 -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.
1139 -)))
1140 -|(% style="width:100px" %)(((
1141 -AT+RXMODE=2,500
1142 -)))|(% style="width:400px" %)(((
1143 -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
1144 -)))
1145 -|(% style="width:100px" %)(((
1146 -AT+RXMODE=0,0
1147 -)))|(% style="width:400px" %)(((
1148 -Disable listening mode. This is the default settings.
1149 -)))
1150 -|(% style="width:100px" %)(((
1151 -
1152 -)))|(% style="width:400px" %)(((
1153 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1154 -)))
807 +07 01 aa bb  Same as AT+5VT=(aa bb)
1155 1155  
1156 -(((
1157 -**Downlink Command:**
1158 -)))
809 +07 02 aa bb  Same as AT+3V3T=(aa bb)
1159 1159  
1160 -(((
1161 -**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1162 -)))
1163 1163  
1164 -(((
1165 -
1166 -)))
1167 1167  
1168 -(((
1169 -**Example**:
1170 -)))
1171 1171  
1172 -(((
1173 -The RS485-LN is set to AT+RXMODE=2,1000
1174 -)))
814 +1.
815 +11. Buttons
1175 1175  
1176 -(((
1177 -There is a two Modbus commands in the RS485 network as below:
1178 -)))
817 +|**Button**|**Feature**
818 +|**RST**|Reboot RS485-BL
1179 1179  
1180 -(((
1181 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1182 -)))
820 +1.
821 +11. +3V3 Output
1183 1183  
1184 -(((
1185 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1186 -)))
823 +RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1187 1187  
1188 -(((
1189 -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
1190 -)))
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. 
1191 1191  
1192 -(((
1193 -[[image:image-20220602171200-9.png]]
1194 -)))
1195 1195  
1196 -(((
1197 -
1198 -)))
828 +The +3V3 output time can be controlled by AT Command.
1199 1199  
1200 -(((
1201 -(((
1202 -(% 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.
1203 -)))
1204 -)))
830 +**AT+3V3T=1000**
1205 1205  
832 +Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1206 1206  
1207 -== 3.7 Buttons ==
1208 1208  
835 +By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1209 1209  
1210 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1211 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1212 -|(% 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**
1213 -|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1214 -|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1215 1215  
1216 -== 3.8 LEDs ==
838 +1.
839 +11. +5V Output
1217 1217  
841 +RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1218 1218  
1219 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1220 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1221 -|**PWR**|Always on if there is power
1222 -|**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. 
1223 1223  
1224 -= 4. Case Study =
1225 1225  
1226 -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.
1227 1227  
848 +**AT+5VT=1000**
1228 1228  
1229 -= 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.
1230 1230  
1231 -== 5.1 Access AT Command ==
1232 1232  
1233 -(((
1234 -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.
1235 -)))
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.
1236 1236  
1237 -[[image:1654162355560-817.png]]
1238 1238  
1239 1239  
1240 -(((
1241 -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:
1242 -)))
1243 1243  
1244 -[[image:1654162368066-342.png]]
858 +1.
859 +11. LEDs
1245 1245  
861 +|**LEDs**|**Feature**
862 +|**LED1**|Blink when device transmit a packet.
1246 1246  
1247 -(((
1248 -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.
1249 1249  )))
873 +|**SW2**|(((
874 +5V position: set to compatible with 5v I/O.
1250 1250  
876 +3.3v position: set to compatible with 3.3v I/O.,
877 +)))
1251 1251  
879 ++3.3V: is always ON
1252 1252  
1253 -== 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.
1254 1254  
1255 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
883 +1. Case Study
1256 1256  
1257 -If device has not joined network yet:
885 +User can check this URL for some case studies.
1258 1258  
1259 -(% class="box infomessage" %)
1260 -(((
1261 -**AT+FDR**
1262 -)))
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]]
1263 1263  
1264 -(% class="box infomessage" %)
1265 -(((
1266 -**AT+NJM=0**
1267 -)))
1268 1268  
1269 -(% class="box infomessage" %)
1270 -(((
1271 -**ATZ**
1272 -)))
1273 1273  
1274 1274  
1275 -(((
1276 -If device already joined network:
1277 -)))
892 +1. Use AT Command
893 +11. Access AT Command
1278 1278  
1279 -(% class="box infomessage" %)
1280 -(((
1281 -**AT+NJM=0**
1282 -)))
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.
1283 1283  
1284 -(% class="box infomessage" %)
1285 -(((
1286 -**ATZ**
1287 -)))
897 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1288 1288  
1289 1289  
1290 -=== 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:
1291 1291  
902 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1292 1292  
1293 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1294 1294  
1295 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1296 1296  
1297 -(% 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]]
1298 1298  
1299 -(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1300 1300  
1301 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1302 1302  
1303 -(% 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)
1304 1304  
1305 -(% 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:
1306 1306  
1307 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
916 +AT+FDR
1308 1308  
1309 -(% 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
1310 1310  
1311 -(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
920 +ATZ
1312 1312  
1313 1313  
1314 -(% style="color:red" %)**Note:**
923 +If device already joined network:
1315 1315  
1316 -(((
1317 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1318 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1319 -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.
1320 -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
1321 -)))
925 +AT+NJM=0
1322 1322  
1323 -[[image:1654162478620-421.png]]
927 +ATZ
1324 1324  
929 +1.
930 +11.
931 +111. Single-channel ABP mode (Use with LG01/LG02)
1325 1325  
1326 -= 6. FAQ =
933 +AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1327 1327  
1328 -== 6.1 How to upgrade the image? ==
935 +AT+NJM=0 Set to ABP mode
1329 1329  
1330 -(((
1331 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1332 -)))
937 +AT+ADR=0 Set the Adaptive Data Rate Off
1333 1333  
1334 -* (((
1335 -Support new features
1336 -)))
1337 -* (((
1338 -For bug fix
1339 -)))
1340 -* (((
1341 -Change LoRaWAN bands.
1342 -)))
939 +AT+DR=5  Set Data Rate
1343 1343  
1344 -(((
1345 -Below shows the hardware connection for how to upload an image to RS485-LN:
1346 -)))
941 +AT+TDC=60000  Set transmit interval to 60 seconds
1347 1347  
1348 -[[image:1654162535040-878.png]]
943 +AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1349 1349  
1350 -(((
1351 -**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 -)))
945 +AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1353 1353  
1354 -(((
1355 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1356 -)))
947 +AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1357 1357  
1358 -(((
1359 -**Step3: **Open flashloader; choose the correct COM port to update.
1360 -)))
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.
1361 1361  
1362 -(((
1363 -(((
1364 -(((
1365 -(% 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.
1366 -)))
1367 -)))
1368 -)))
951 +ATZ          Reset MCU
1369 1369  
953 +**Note:**
1370 1370  
1371 -[[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
1372 1372  
960 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1373 1373  
1374 -[[image:image-20220602175848-13.png]]
1375 1375  
963 +1. FAQ
964 +11. How to upgrade the image?
1376 1376  
1377 -[[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:
1378 1378  
968 +* Support new features
969 +* For bug fix
970 +* Change LoRaWAN bands.
1379 1379  
1380 -**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:
1381 1381  
1382 -[[image:image-20220602175638-10.png]]
974 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1383 1383  
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]].
1384 1384  
1385 -== 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/]].
1386 1386  
1387 -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.
1388 1388  
1389 1389  
1390 -== 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 +)))
1391 1391  
1392 -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 +)))
1393 1393  
991 +|(((
992 +
993 +)))
1394 1394  
1395 -== 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]]
1396 1396  
1397 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1398 1398  
1399 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1400 1400  
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]]
1401 1401  
1402 -= 7. Trouble Shooting =
1403 1403  
1404 -== 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]]
1405 1405  
1406 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1407 1407  
1005 +1.
1006 +11. How to change the LoRa Frequency Bands/Region?
1408 1408  
1409 -== 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.
1410 1410  
1411 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1412 1412  
1413 1413  
1414 -= 8. Order Info =
1012 +1.
1013 +11. How many RS485-Slave can RS485-BL connects?
1415 1415  
1416 -(% 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]].
1417 1417  
1418 -(% style="color:blue" %)**XXX:**
1419 1419  
1420 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1421 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1422 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1423 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1424 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1425 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1426 -* (% style="color:blue" %)**US915**(%%): frequency bands US915
1427 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1428 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1429 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1430 1430  
1431 -= 9.Packing Info =
1432 1432  
1020 +1. Trouble Shooting     
1021 +11. Downlink doesn’t work, how to solve it?
1433 1433  
1434 -**Package Includes**:
1023 +Please see this link for debug:
1435 1435  
1436 -* RS485-LN x 1
1437 -* Stick Antenna for LoRa RF part x 1
1438 -* 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]] 
1439 1439  
1440 -**Dimension and weight**:
1441 1441  
1442 -* Device Size: 13.5 x 7 x 3 cm
1443 -* Device Weight: 105g
1444 -* Package Size / pcs : 14.5 x 8 x 5 cm
1445 -* Weight / pcs : 170g
1446 1446  
1447 -= 10. FCC Caution for RS485LN-US915 =
1029 +1.
1030 +11. Why I can’t join TTN V3 in US915 /AU915 bands?
1448 1448  
1449 -(((
1450 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1451 -)))
1032 +It might about the channels mapping. Please see for detail.
1452 1452  
1453 -(((
1454 -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.
1455 -)))
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]]
1456 1456  
1457 -(((
1458 -
1459 -)))
1460 1460  
1461 -(((
1462 -**IMPORTANT NOTE:**
1463 -)))
1464 1464  
1465 -(((
1466 -**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:
1467 -)))
1038 +1. Order Info
1468 1468  
1469 -(((
1470 -—Reorient or relocate the receiving antenna.
1471 -)))
1040 +**Part Number: RS485-BL-XXX**
1472 1472  
1473 -(((
1474 -—Increase the separation between the equipment and receiver.
1475 -)))
1042 +**XXX:**
1476 1476  
1477 -(((
1478 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1479 -)))
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
1480 1480  
1481 -(((
1482 -—Consult the dealer or an experienced radio/TV technician for help.
1483 -)))
1055 +1. Packing Info
1484 1484  
1485 -(((
1486 -
1487 -)))
1057 +**Package Includes**:
1488 1488  
1489 -(((
1490 -**FCC Radiation Exposure Statement:**
1491 -)))
1059 +* RS485-BL x 1
1060 +* Stick Antenna for LoRa RF part x 1
1061 +* Program cable x 1
1492 1492  
1493 -(((
1494 -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.
1495 -)))
1063 +**Dimension and weight**:
1496 1496  
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
1497 1497  
1498 -= 11. Support =
1070 +1. Support
1499 1499  
1500 -* (((
1501 -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.
1502 -)))
1503 -* (((
1504 -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]].
1505 -)))
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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