Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 57.45 >
edited by Xiaoling
on 2022/06/06 10:13
To version < 60.7 >
edited by Xiaoling
on 2022/06/14 11:14
>
Change comment: There is no comment for this version

Summary

Details

Page properties
Title
... ... @@ -1,1 +1,1 @@
1 -RS485-LN – RS485 to LoRaWAN Converter
1 +RS485-LN – RS485 to LoRaWAN Converter User Manual
Content
... ... @@ -3,7 +3,6 @@
3 3  
4 4  
5 5  
6 -**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 9  
... ... @@ -25,6 +25,8 @@
25 25  (((
26 26  (((
27 27  (((
27 +
28 +
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 30  )))
... ... @@ -48,6 +48,8 @@
48 48  
49 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]]
52 +
53 +
51 51  )))
52 52  )))
53 53  )))
... ... @@ -66,11 +66,13 @@
66 66  ** Idle: 32mA@12v
67 67  ** 20dB Transmit: 65mA@12v
68 68  
72 +
69 69  **Interface for Model:**
70 70  
71 71  * RS485
72 72  * Power Input 7~~ 24V DC. 
73 73  
78 +
74 74  **LoRa Spec:**
75 75  
76 76  * Frequency Range:
... ... @@ -92,6 +92,8 @@
92 92  * Automatic RF Sense and CAD with ultra-fast AFC.
93 93  * Packet engine up to 256 bytes with CRC
94 94  
100 +
101 +
95 95  == 1.3 Features ==
96 96  
97 97  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -125,9 +125,13 @@
125 125  
126 126  (((
127 127  (((
135 +(((
128 128  v1.2: Add External Interrupt Pin.
137 +)))
129 129  
139 +(((
130 130  v1.0: Release
141 +)))
131 131  
132 132  
133 133  )))
... ... @@ -180,12 +180,13 @@
180 180  
181 181  [[image:1653268227651-549.png||height="592" width="720"]]
182 182  
194 +
183 183  (((
184 184  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:
185 185  )))
186 186  
187 187  (((
188 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
200 +(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
189 189  )))
190 190  
191 191  (((
... ... @@ -195,6 +195,7 @@
195 195  
196 196  [[image:1652953462722-299.png]]
197 197  
210 +
198 198  (((
199 199  (((
200 200  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
... ... @@ -201,7 +201,7 @@
201 201  )))
202 202  
203 203  (((
204 -Add APP EUI in the application.
217 +**Add APP EUI in the application.**
205 205  )))
206 206  )))
207 207  
... ... @@ -217,13 +217,15 @@
217 217  
218 218  [[image:1652953542269-423.png||height="710" width="723"]]
219 219  
220 -Add APP KEY and DEV EUI
221 221  
234 +
235 +**Add APP KEY and DEV EUI**
236 +
222 222  [[image:1652953553383-907.png||height="514" width="724"]]
223 223  
224 224  
225 225  (((
226 -**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.
241 +(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
227 227  )))
228 228  
229 229  [[image:1652953568895-172.png||height="232" width="724"]]
... ... @@ -233,11 +233,15 @@
233 233  
234 234  (((
235 235  (((
251 +(((
236 236  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.
237 237  )))
254 +)))
238 238  
239 239  (((
257 +(((
240 240  (% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
259 +)))
241 241  
242 242  
243 243  )))
... ... @@ -247,19 +247,19 @@
247 247  
248 248  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:
249 249  
250 -(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
251 -|(% style="width:128px" %)(((
269 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
270 +|=(% style="width: 110px;" %)(((
252 252  **AT Commands**
253 -)))|(% style="width:305px" %)(((
272 +)))|=(% style="width: 190px;" %)(((
254 254  **Description**
255 -)))|(% style="width:346px" %)(((
274 +)))|=(% style="width: 190px;" %)(((
256 256  **Example**
257 257  )))
258 -|(% style="width:128px" %)(((
277 +|(% style="width:110px" %)(((
259 259  AT+BAUDR
260 -)))|(% style="width:305px" %)(((
279 +)))|(% style="width:190px" %)(((
261 261  Set the baud rate (for RS485 connection). Default Value is: 9600.
262 -)))|(% style="width:346px" %)(((
281 +)))|(% style="width:190px" %)(((
263 263  (((
264 264  AT+BAUDR=9600
265 265  )))
... ... @@ -268,11 +268,11 @@
268 268  Options: (1200,2400,4800,14400,19200,115200)
269 269  )))
270 270  )))
271 -|(% style="width:128px" %)(((
290 +|(% style="width:110px" %)(((
272 272  AT+PARITY
273 -)))|(% style="width:305px" %)(((
292 +)))|(% style="width:190px" %)(((
274 274  Set UART parity (for RS485 connection)
275 -)))|(% style="width:346px" %)(((
294 +)))|(% style="width:190px" %)(((
276 276  (((
277 277  AT+PARITY=0
278 278  )))
... ... @@ -281,9 +281,9 @@
281 281  Option: 0: no parity, 1: odd parity, 2: even parity
282 282  )))
283 283  )))
284 -|(% style="width:128px" %)(((
303 +|(% style="width:110px" %)(((
285 285  AT+STOPBIT
286 -)))|(% style="width:305px" %)(((
305 +)))|(% style="width:190px" %)(((
287 287  (((
288 288  Set serial stopbit (for RS485 connection)
289 289  )))
... ... @@ -291,7 +291,7 @@
291 291  (((
292 292  
293 293  )))
294 -)))|(% style="width:346px" %)(((
313 +)))|(% style="width:190px" %)(((
295 295  (((
296 296  AT+STOPBIT=0 for 1bit
297 297  )))
... ... @@ -305,6 +305,9 @@
305 305  )))
306 306  )))
307 307  
327 +
328 +
329 +
308 308  === 3.3.2 Configure sensors ===
309 309  
310 310  (((
... ... @@ -313,15 +313,21 @@
313 313  )))
314 314  )))
315 315  
316 -(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
317 -|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
318 -|AT+CFGDEV|(% style="width:418px" %)(((
338 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
339 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
340 +|AT+CFGDEV|(% style="width:110px" %)(((
341 +(((
319 319  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
343 +)))
320 320  
345 +(((
321 321  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
347 +)))
322 322  
349 +(((
323 323  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
324 -)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
351 +)))
352 +)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
325 325  
326 326  === 3.3.3 Configure read commands for each sampling ===
327 327  
... ... @@ -368,8 +368,8 @@
368 368  
369 369  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
370 370  
371 -(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
372 -|(% style="width:722px" %)(((
399 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
400 +|(% style="width:510px" %)(((
373 373  **AT+DATACUTx=a,b,c**
374 374  
375 375  * **a: length for the return of AT+COMMAND**
... ... @@ -495,33 +495,35 @@
495 495  
496 496  == 3.4 Uplink Payload ==
497 497  
498 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
499 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
500 -|Value|(% style="width:120px" %)(((
501 -Battery(mV)
502 502  
503 -&
527 +[[image:image-20220606110929-1.png]]
504 504  
505 -Interrupt _Flag
506 -)))|(% style="width:116px" %)(((
507 -PAYLOAD_VER
508 -
509 -
510 -)))|(% 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.
511 -
512 512  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
513 513  
514 514  
515 515  == 3.5 Configure RS485-BL via AT or Downlink ==
516 516  
534 +(((
517 517  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
536 +)))
518 518  
538 +(((
519 519  There are two kinds of Commands:
540 +)))
520 520  
521 -* (% 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]]
542 +* (((
543 +(% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
544 +)))
522 522  
523 -* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
546 +* (((
547 +(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
548 +)))
524 524  
550 +(((
551 +
552 +)))
553 +
554 +
525 525  === 3.5.1 Common Commands ===
526 526  
527 527  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]]
... ... @@ -540,142 +540,282 @@
540 540  
541 541  
542 542  
573 +
543 543  ==== **RS485 Debug Command** ====
544 544  
576 +(((
545 545  This command is used to configure the RS485 devices; they won’t be used during sampling.
578 +)))
546 546  
547 -* **AT Command**
580 +* (((
581 +**AT Command**
582 +)))
548 548  
549 549  (% class="box infomessage" %)
550 550  (((
586 +(((
551 551  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
552 552  )))
589 +)))
553 553  
591 +(((
554 554  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
593 +)))
555 555  
556 -* **Downlink Payload**
595 +* (((
596 +**Downlink Payload**
597 +)))
557 557  
599 +(((
558 558  Format: A8 MM NN XX XX XX XX YY
601 +)))
559 559  
603 +(((
560 560  Where:
605 +)))
561 561  
562 -* MM: 1: add CRC-16/MODBUS ; 0: no CRC
563 -* NN: The length of RS485 command
564 -* XX XX XX XX: RS485 command total NN bytes
565 -* YY: How many bytes will be uplink from the return of this RS485 command,
566 -** if YY=0, RS485-LN will execute the downlink command without uplink;
567 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
568 -** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
607 +* (((
608 +MM: 1: add CRC-16/MODBUS ; 0: no CRC
609 +)))
610 +* (((
611 +NN: The length of RS485 command
612 +)))
613 +* (((
614 +XX XX XX XX: RS485 command total NN bytes
615 +)))
616 +* (((
617 +(((
618 +YY: How many bytes will be uplink from the return of this RS485 command,
619 +)))
569 569  
621 +* (((
622 +if YY=0, RS485-LN will execute the downlink command without uplink;
623 +)))
624 +* (((
625 +if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
626 +)))
627 +* (((
628 +if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
629 +)))
630 +)))
631 +
632 +(((
570 570  **Example 1** ~-~-> Configure without ask for uplink (YY=0)
634 +)))
571 571  
636 +(((
572 572  To connect a Modbus Alarm with below commands.
638 +)))
573 573  
574 -* 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.
640 +* (((
641 +The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
642 +)))
575 575  
576 -* 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.
644 +* (((
645 +The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
646 +)))
577 577  
648 +(((
578 578  So if user want to use downlink command to control to RS485 Alarm, he can use:
650 +)))
579 579  
652 +(((
580 580  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
654 +)))
581 581  
656 +(((
582 582  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
658 +)))
583 583  
660 +(((
584 584  A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
662 +)))
585 585  
664 +(((
665 +
666 +)))
586 586  
668 +(((
587 587  **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
670 +)))
588 588  
672 +(((
589 589  User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
674 +)))
590 590  
676 +(((
677 +
678 +)))
591 591  
680 +(((
592 592  RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:
682 +)))
593 593  
684 +(((
594 594   **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
686 +)))
595 595  
688 +(((
596 596   [[image:1654159460680-153.png]]
690 +)))
597 597  
598 598  
599 599  
694 +
600 600  ==== **Set Payload version** ====
601 601  
697 +(((
602 602  This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
699 +)))
603 603  
604 -* **AT Command:**
701 +* (((
702 +**AT Command:**
703 +)))
605 605  
606 606  (% class="box infomessage" %)
607 607  (((
707 +(((
608 608  **AT+PAYVER: Set PAYVER field = 1**
609 609  )))
710 +)))
610 610  
611 -* **Downlink Payload:**
712 +* (((
713 +**Downlink Payload:**
714 +)))
612 612  
716 +(((
613 613  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
718 +)))
614 614  
720 +(((
615 615  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
722 +)))
616 616  
617 617  
618 618  
726 +
619 619  ==== **Set RS485 Sampling Commands** ====
620 620  
729 +(((
621 621  AT+COMMANDx or AT+DATACUTx
731 +)))
622 622  
733 +(((
623 623  These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
735 +)))
624 624  
737 +(((
738 +
739 +)))
625 625  
626 -* **AT Command:**
741 +* (((
742 +**AT Command:**
743 +)))
627 627  
628 628  (% class="box infomessage" %)
629 629  (((
747 +(((
630 630  **AT+COMMANDx: Configure RS485 read command to sensor.**
631 631  )))
750 +)))
632 632  
633 633  (% class="box infomessage" %)
634 634  (((
754 +(((
635 635  **AT+DATACUTx: Configure how to handle return from RS485 devices.**
636 636  )))
757 +)))
637 637  
759 +(((
760 +
761 +)))
638 638  
639 -* **Downlink Payload:**
763 +* (((
764 +**Downlink Payload:**
765 +)))
640 640  
767 +(((
641 641  **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
769 +)))
642 642  
771 +(((
643 643  (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
773 +)))
644 644  
775 +(((
645 645  Format: AF MM NN LL XX XX XX XX YY
777 +)))
646 646  
779 +(((
647 647  Where:
781 +)))
648 648  
649 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
650 -* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
651 -* LL:  The length of AT+COMMAND or AT+DATACUT command
652 -* XX XX XX XX: AT+COMMAND or AT+DATACUT command
653 -* 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.
783 +* (((
784 +MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
785 +)))
786 +* (((
787 +NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
788 +)))
789 +* (((
790 +LL:  The length of AT+COMMAND or AT+DATACUT command
791 +)))
792 +* (((
793 +XX XX XX XX: AT+COMMAND or AT+DATACUT command
794 +)))
795 +* (((
796 +YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
797 +)))
654 654  
799 +(((
655 655  **Example:**
801 +)))
656 656  
803 +(((
657 657  (% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
805 +)))
658 658  
807 +(((
659 659  (% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
809 +)))
660 660  
811 +(((
661 661  (% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
813 +)))
662 662  
663 663  
664 664  
817 +
665 665  ==== **Fast command to handle MODBUS device** ====
666 666  
820 +(((
667 667  AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
822 +)))
668 668  
824 +(((
669 669  This command is valid since v1.3 firmware version
826 +)))
670 670  
828 +(((
671 671  AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
830 +)))
672 672  
832 +(((
833 +
834 +)))
673 673  
836 +(((
674 674  **Example:**
838 +)))
675 675  
676 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
677 -* 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.
678 -* 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.
840 +* (((
841 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
842 +)))
843 +* (((
844 +AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
845 +)))
846 +* (((
847 +AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
848 +)))
679 679  
680 680  [[image:image-20220602165351-6.png]]
681 681  
... ... @@ -683,203 +683,375 @@
683 683  
684 684  
685 685  
856 +
686 686  ==== **RS485 command timeout** ====
687 687  
859 +(((
688 688  Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
861 +)))
689 689  
863 +(((
690 690  Default value: 0, range:  0 ~~ 65 seconds
865 +)))
691 691  
692 -* **AT Command:**
867 +* (((
868 +**AT Command:**
869 +)))
693 693  
694 694  (% class="box infomessage" %)
695 695  (((
873 +(((
696 696  **AT+CMDDLaa=hex(bb cc)*1000**
697 697  )))
876 +)))
698 698  
878 +(((
699 699  **Example:**
880 +)))
700 700  
882 +(((
701 701  **AT+CMDDL1=1000** to send the open time to 1000ms
884 +)))
702 702  
886 +(((
887 +
888 +)))
703 703  
704 -* **Downlink Payload:**
890 +* (((
891 +**Downlink Payload:**
892 +)))
705 705  
894 +(((
706 706  **0x AA aa bb cc**
896 +)))
707 707  
898 +(((
708 708  Same as: AT+CMDDLaa=hex(bb cc)*1000
900 +)))
709 709  
902 +(((
710 710   **Example:**
904 +)))
711 711  
906 +(((
712 712   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
908 +)))
713 713  
714 714  
715 715  
912 +
716 716  ==== **Uplink payload mode** ====
717 717  
915 +(((
718 718  Define to use one uplink or multiple uplinks for the sampling.
917 +)))
719 719  
919 +(((
720 720  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
921 +)))
721 721  
722 -* **AT Command:**
923 +* (((
924 +**AT Command:**
925 +)))
723 723  
724 724  (% class="box infomessage" %)
725 725  (((
929 +(((
726 726  **AT+DATAUP=0**
727 727  )))
932 +)))
728 728  
729 729  (% class="box infomessage" %)
730 730  (((
936 +(((
731 731  **AT+DATAUP=1**
732 732  )))
939 +)))
733 733  
941 +(((
942 +
943 +)))
734 734  
735 -* **Downlink Payload:**
945 +* (((
946 +**Downlink Payload:**
947 +)))
736 736  
949 +(((
737 737  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
951 +)))
738 738  
953 +(((
739 739  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
955 +)))
740 740  
741 741  
742 742  
959 +
743 743  ==== **Manually trigger an Uplink** ====
744 744  
962 +(((
745 745  Ask device to send an uplink immediately.
964 +)))
746 746  
747 -* **AT Command:**
966 +* (((
967 +**AT Command:**
968 +)))
748 748  
970 +(((
749 749  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
972 +)))
750 750  
974 +(((
975 +
976 +)))
751 751  
752 -* **Downlink Payload:**
978 +* (((
979 +**Downlink Payload:**
980 +)))
753 753  
982 +(((
754 754  **0x08 FF**, RS485-LN will immediately send an uplink.
984 +)))
755 755  
756 756  
757 757  
988 +
758 758  ==== **Clear RS485 Command** ====
759 759  
991 +(((
760 760  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
993 +)))
761 761  
762 -* **AT Command:**
995 +* (((
996 +**AT Command:**
997 +)))
763 763  
999 +(((
764 764  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
1001 +)))
765 765  
1003 +(((
766 766  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1005 +)))
767 767  
1007 +(((
768 768  Example screen shot after clear all RS485 commands. 
1009 +)))
769 769  
1011 +(((
1012 +
1013 +)))
770 770  
1015 +(((
771 771  The uplink screen shot is:
1017 +)))
772 772  
773 773  [[image:1654160691922-496.png]]
774 774  
775 775  
776 -* **Downlink Payload:**
1022 +* (((
1023 +**Downlink Payload:**
1024 +)))
777 777  
1026 +(((
778 778  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1028 +)))
779 779  
780 780  
781 781  
1032 +
782 782  ==== **Set Serial Communication Parameters** ====
783 783  
1035 +(((
784 784  Set the Rs485 serial communication parameters:
1037 +)))
785 785  
786 -* **AT Command:**
1039 +* (((
1040 +**AT Command:**
1041 +)))
787 787  
1043 +(((
788 788  Set Baud Rate:
1045 +)))
789 789  
790 790  (% class="box infomessage" %)
791 791  (((
1049 +(((
792 792  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
793 793  )))
1052 +)))
794 794  
1054 +(((
795 795  Set UART Parity
1056 +)))
796 796  
797 797  (% class="box infomessage" %)
798 798  (((
1060 +(((
799 799  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
800 800  )))
1063 +)))
801 801  
1065 +(((
802 802  Set STOPBIT
1067 +)))
803 803  
804 804  (% class="box infomessage" %)
805 805  (((
1071 +(((
806 806  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
807 807  )))
1074 +)))
808 808  
1076 +(((
1077 +
1078 +)))
809 809  
810 -* **Downlink Payload:**
1080 +* (((
1081 +**Downlink Payload:**
1082 +)))
811 811  
1084 +(((
812 812  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1086 +)))
813 813  
1088 +(((
814 814  **Example:**
1090 +)))
815 815  
816 -* A7 01 00 60   same as AT+BAUDR=9600
817 -* A7 01 04 80  same as AT+BAUDR=115200
1092 +* (((
1093 +A7 01 00 60   same as AT+BAUDR=9600
1094 +)))
1095 +* (((
1096 +A7 01 04 80  same as AT+BAUDR=115200
1097 +)))
818 818  
1099 +(((
819 819  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1101 +)))
820 820  
1103 +(((
821 821  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1105 +)))
822 822  
823 823  
1108 +
1109 +
824 824  == 3.6 Listening mode for RS485 network ==
825 825  
1112 +(((
826 826  This feature support since firmware v1.4
1114 +)))
827 827  
1116 +(((
828 828  RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
1118 +)))
829 829  
830 830  [[image:image-20220602171200-8.png||height="567" width="1007"]]
831 831  
1122 +(((
832 832  To enable the listening mode, use can run the command AT+RXMODE.
1124 +)))
833 833  
1126 +(((
1127 +
1128 +)))
834 834  
835 -(% border="1" style="background-color:#ffffcc; width:500px" %)
836 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
837 -|(% style="width:161px" %)AT+RXMODE=1,10 |(% style="width:337px" %)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.
838 -|(% style="width:161px" %)AT+RXMODE=2,500|(% style="width:337px" %)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
839 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
840 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1130 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1131 +|=(% style="width: 100px;" %)(((
1132 +**Command example**
1133 +)))|=(% style="width: 400px;" %)(((
1134 +**Function**
1135 +)))
1136 +|(% style="width:100px" %)(((
1137 +AT+RXMODE=1,10
1138 +)))|(% style="width:400px" %)(((
1139 +Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
1140 +)))
1141 +|(% style="width:100px" %)(((
1142 +AT+RXMODE=2,500
1143 +)))|(% style="width:400px" %)(((
1144 +Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
1145 +)))
1146 +|(% style="width:100px" %)(((
1147 +AT+RXMODE=0,0
1148 +)))|(% style="width:400px" %)(((
1149 +Disable listening mode. This is the default settings.
1150 +)))
1151 +|(% style="width:100px" %)(((
1152 +
1153 +)))|(% style="width:400px" %)(((
1154 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1155 +)))
841 841  
1157 +(((
842 842  **Downlink Command:**
1159 +)))
843 843  
1161 +(((
844 844  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1163 +)))
845 845  
1165 +(((
1166 +
1167 +)))
846 846  
1169 +(((
847 847  **Example**:
1171 +)))
848 848  
1173 +(((
849 849  The RS485-LN is set to AT+RXMODE=2,1000
1175 +)))
850 850  
1177 +(((
851 851  There is a two Modbus commands in the RS485 network as below:
1179 +)))
852 852  
1181 +(((
853 853  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1183 +)))
854 854  
1185 +(((
855 855  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1187 +)))
856 856  
1189 +(((
857 857  RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b  (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1191 +)))
858 858  
1193 +(((
859 859  [[image:image-20220602171200-9.png]]
1195 +)))
860 860  
1197 +(((
1198 +
1199 +)))
861 861  
1201 +(((
1202 +(((
862 862  (% style="color:red" %)Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.
1204 +)))
1205 +)))
863 863  
864 864  
865 865  == 3.7 Buttons ==
866 866  
867 867  
868 -(% border="1" style="background-color:#f7faff; width:500px" %)
869 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
870 -|**ACT**|(% style="width:1420px" %)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**
871 -|**RST**|(% style="width:1420px" %)Reboot RS485
872 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1211 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1212 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1213 +|(% style="width:50px" %)**ACT**|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1214 +|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1215 +|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
873 873  
874 -
875 875  == 3.8 LEDs ==
876 876  
877 -(% border="1" style="background-color:#f7faff; width:500px" %)
878 -|=**LEDs**|=**Feature**
1219 +
1220 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1221 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
879 879  |**PWR**|Always on if there is power
880 -|**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.
1223 +|**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
881 881  
882 -
883 883  = 4. Case Study =
884 884  
885 885  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]]
... ... @@ -889,19 +889,26 @@
889 889  
890 890  == 5.1 Access AT Command ==
891 891  
1234 +(((
892 892  RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1236 +)))
893 893  
894 894  [[image:1654162355560-817.png]]
895 895  
896 896  
1241 +(((
897 897  In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1243 +)))
898 898  
899 899  [[image:1654162368066-342.png]]
900 900  
901 901  
1248 +(((
902 902  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/]]
1250 +)))
903 903  
904 904  
1253 +
905 905  == 5.2 Common AT Command Sequence ==
906 906  
907 907  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -924,7 +924,9 @@
924 924  )))
925 925  
926 926  
1276 +(((
927 927  If device already joined network:
1278 +)))
928 928  
929 929  (% class="box infomessage" %)
930 930  (((
... ... @@ -963,10 +963,12 @@
963 963  
964 964  (% style="color:red" %)**Note:**
965 965  
1317 +(((
966 966  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
967 967  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
968 968  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.
969 969  4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1322 +)))
970 970  
971 971  [[image:1654162478620-421.png]]
972 972  
... ... @@ -975,25 +975,45 @@
975 975  
976 976  == 6.1 How to upgrade the image? ==
977 977  
1331 +(((
978 978  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1333 +)))
979 979  
980 -* Support new features
981 -* For bug fix
982 -* Change LoRaWAN bands.
1335 +* (((
1336 +Support new features
1337 +)))
1338 +* (((
1339 +For bug fix
1340 +)))
1341 +* (((
1342 +Change LoRaWAN bands.
1343 +)))
983 983  
1345 +(((
984 984  Below shows the hardware connection for how to upload an image to RS485-LN:
1347 +)))
985 985  
986 986  [[image:1654162535040-878.png]]
987 987  
1351 +(((
988 988  **Step1:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1353 +)))
989 989  
1355 +(((
990 990  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1357 +)))
991 991  
1359 +(((
992 992  **Step3: **Open flashloader; choose the correct COM port to update.
1361 +)))
993 993  
994 994  (((
1364 +(((
1365 +(((
995 995  (% 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.
996 996  )))
1368 +)))
1369 +)))
997 997  
998 998  
999 999  [[image:image-20220602175818-12.png]]
... ... @@ -1056,8 +1056,6 @@
1056 1056  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1057 1057  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1058 1058  
1059 -
1060 -
1061 1061  = 9.Packing Info =
1062 1062  
1063 1063  
... ... @@ -1074,8 +1074,6 @@
1074 1074  * Package Size / pcs : 14.5 x 8 x 5 cm
1075 1075  * Weight / pcs : 170g
1076 1076  
1077 -
1078 -
1079 1079  = 10. FCC Caution for RS485LN-US915 =
1080 1080  
1081 1081  (((
image-20220606110929-1.png
Author
... ... @@ -1,0 +1,1 @@
1 +XWiki.Xiaoling
Size
... ... @@ -1,0 +1,1 @@
1 +13.9 KB
Content

Applications

Navigation

Copyright ©2010-2024 Dragino Technology Co., LTD. All rights reserved
Dragino Wiki v2.0