Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 57.13 >
edited by Xiaoling
on 2022/06/06 09:01
To version < 58.7 >
edited by Xiaoling
on 2022/06/06 11:22
>
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -24,23 +24,33 @@
24 24  
25 25  (((
26 26  (((
27 +(((
27 27  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.
28 28  )))
30 +)))
29 29  
30 30  (((
33 +(((
31 31  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.
32 32  )))
36 +)))
33 33  
34 34  (((
39 +(((
35 35  (% 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.
36 36  )))
42 +)))
37 37  
38 38  (((
45 +(((
39 39  (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
47 +)))
40 40  
49 +(((
41 41  (% 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]]
42 42  )))
43 43  )))
53 +)))
44 44  
45 45  [[image:1653267211009-519.png||height="419" width="724"]]
46 46  
... ... @@ -82,7 +82,6 @@
82 82  * Automatic RF Sense and CAD with ultra-fast AFC.
83 83  * Packet engine up to 256 bytes with CRC
84 84  
85 -
86 86  == 1.3 Features ==
87 87  
88 88  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -114,9 +114,13 @@
114 114  
115 115  (((
116 116  (((
126 +(((
117 117  v1.2: Add External Interrupt Pin.
128 +)))
118 118  
130 +(((
119 119  v1.0: Release
132 +)))
120 120  
121 121  
122 122  )))
... ... @@ -144,7 +144,9 @@
144 144  == 3.1 How it works? ==
145 145  
146 146  (((
160 +(((
147 147  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.
162 +)))
148 148  
149 149  
150 150  )))
... ... @@ -234,19 +234,19 @@
234 234  
235 235  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:
236 236  
237 -(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
238 -|(% style="width:128px" %)(((
252 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
253 +|=(% style="width: 110px;" %)(((
239 239  **AT Commands**
240 -)))|(% style="width:305px" %)(((
255 +)))|=(% style="width: 190px;" %)(((
241 241  **Description**
242 -)))|(% style="width:346px" %)(((
257 +)))|=(% style="width: 190px;" %)(((
243 243  **Example**
244 244  )))
245 -|(% style="width:128px" %)(((
260 +|(% style="width:110px" %)(((
246 246  AT+BAUDR
247 -)))|(% style="width:305px" %)(((
262 +)))|(% style="width:190px" %)(((
248 248  Set the baud rate (for RS485 connection). Default Value is: 9600.
249 -)))|(% style="width:346px" %)(((
264 +)))|(% style="width:190px" %)(((
250 250  (((
251 251  AT+BAUDR=9600
252 252  )))
... ... @@ -255,11 +255,11 @@
255 255  Options: (1200,2400,4800,14400,19200,115200)
256 256  )))
257 257  )))
258 -|(% style="width:128px" %)(((
273 +|(% style="width:110px" %)(((
259 259  AT+PARITY
260 -)))|(% style="width:305px" %)(((
275 +)))|(% style="width:190px" %)(((
261 261  Set UART parity (for RS485 connection)
262 -)))|(% style="width:346px" %)(((
277 +)))|(% style="width:190px" %)(((
263 263  (((
264 264  AT+PARITY=0
265 265  )))
... ... @@ -268,9 +268,9 @@
268 268  Option: 0: no parity, 1: odd parity, 2: even parity
269 269  )))
270 270  )))
271 -|(% style="width:128px" %)(((
286 +|(% style="width:110px" %)(((
272 272  AT+STOPBIT
273 -)))|(% style="width:305px" %)(((
288 +)))|(% style="width:190px" %)(((
274 274  (((
275 275  Set serial stopbit (for RS485 connection)
276 276  )))
... ... @@ -278,7 +278,7 @@
278 278  (((
279 279  
280 280  )))
281 -)))|(% style="width:346px" %)(((
296 +)))|(% style="width:190px" %)(((
282 282  (((
283 283  AT+STOPBIT=0 for 1bit
284 284  )))
... ... @@ -292,6 +292,8 @@
292 292  )))
293 293  )))
294 294  
310 +
311 +
295 295  === 3.3.2 Configure sensors ===
296 296  
297 297  (((
... ... @@ -300,16 +300,18 @@
300 300  )))
301 301  )))
302 302  
303 -(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
304 -|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
305 -|AT+CFGDEV|(% style="width:418px" %)(((
320 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
321 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
322 +|AT+CFGDEV|(% style="width:110px" %)(((
306 306  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
307 307  
308 308  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
309 309  
310 310  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
311 -)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
328 +)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
312 312  
330 +
331 +
313 313  === 3.3.3 Configure read commands for each sampling ===
314 314  
315 315  (((
... ... @@ -355,8 +355,8 @@
355 355  
356 356  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
357 357  
358 -(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
359 -|(% style="width:722px" %)(((
377 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
378 +|(% style="width:510px" %)(((
360 360  **AT+DATACUTx=a,b,c**
361 361  
362 362  * **a: length for the return of AT+COMMAND**
... ... @@ -425,6 +425,7 @@
425 425  
426 426  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
427 427  
447 +
428 428  1. PAYVER: Defined by AT+PAYVER
429 429  1. PAYLOAD COUNT: Total how many uplinks of this sampling.
430 430  1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
... ... @@ -481,33 +481,35 @@
481 481  
482 482  == 3.4 Uplink Payload ==
483 483  
484 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
485 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
486 -|Value|(% style="width:120px" %)(((
487 -Battery(mV)
488 488  
489 -&
505 +[[image:image-20220606110929-1.png]]
490 490  
491 -Interrupt _Flag
492 -)))|(% style="width:116px" %)(((
493 -PAYLOAD_VER
494 -
495 -
496 -)))|(% 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.
497 -
498 498  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
499 499  
500 500  
501 501  == 3.5 Configure RS485-BL via AT or Downlink ==
502 502  
512 +(((
503 503  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
514 +)))
504 504  
516 +(((
505 505  There are two kinds of Commands:
518 +)))
506 506  
507 -* (% 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]]
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]]
522 +)))
508 508  
509 -* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
524 +* (((
525 +(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
526 +)))
510 510  
528 +(((
529 +
530 +)))
531 +
532 +
511 511  === 3.5.1 Common Commands ===
512 512  
513 513  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]]
... ... @@ -526,82 +526,160 @@
526 526  
527 527  
528 528  
551 +
529 529  ==== **RS485 Debug Command** ====
530 530  
554 +(((
531 531  This command is used to configure the RS485 devices; they won’t be used during sampling.
556 +)))
532 532  
533 -* **AT Command**
558 +* (((
559 +**AT Command**
560 +)))
534 534  
535 535  (% class="box infomessage" %)
536 536  (((
564 +(((
537 537  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
538 538  )))
567 +)))
539 539  
569 +(((
540 540  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
571 +)))
541 541  
542 -* **Downlink Payload**
573 +* (((
574 +**Downlink Payload**
575 +)))
543 543  
577 +(((
544 544  Format: A8 MM NN XX XX XX XX YY
579 +)))
545 545  
581 +(((
546 546  Where:
583 +)))
547 547  
548 -* MM: 1: add CRC-16/MODBUS ; 0: no CRC
549 -* NN: The length of RS485 command
550 -* XX XX XX XX: RS485 command total NN bytes
551 -* YY: How many bytes will be uplink from the return of this RS485 command,
552 -** if YY=0, RS485-LN will execute the downlink command without uplink;
553 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
554 -** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
585 +* (((
586 +MM: 1: add CRC-16/MODBUS ; 0: no CRC
587 +)))
588 +* (((
589 +NN: The length of RS485 command
590 +)))
591 +* (((
592 +XX XX XX XX: RS485 command total NN bytes
593 +)))
594 +* (((
595 +(((
596 +YY: How many bytes will be uplink from the return of this RS485 command,
597 +)))
555 555  
599 +* (((
600 +if YY=0, RS485-LN will execute the downlink command without uplink;
601 +)))
602 +* (((
603 +if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
604 +)))
605 +* (((
606 +if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
607 +)))
608 +)))
609 +
610 +(((
556 556  **Example 1** ~-~-> Configure without ask for uplink (YY=0)
612 +)))
557 557  
614 +(((
558 558  To connect a Modbus Alarm with below commands.
616 +)))
559 559  
560 -* 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.
618 +* (((
619 +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.
620 +)))
561 561  
562 -* 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.
622 +* (((
623 +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.
624 +)))
563 563  
626 +(((
564 564  So if user want to use downlink command to control to RS485 Alarm, he can use:
628 +)))
565 565  
630 +(((
566 566  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
632 +)))
567 567  
634 +(((
568 568  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
636 +)))
569 569  
638 +(((
570 570  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.
640 +)))
571 571  
642 +(((
643 +
644 +)))
572 572  
646 +(((
573 573  **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
648 +)))
574 574  
650 +(((
575 575  User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
652 +)))
576 576  
654 +(((
655 +
656 +)))
577 577  
658 +(((
578 578  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:
660 +)))
579 579  
662 +(((
580 580   **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
664 +)))
581 581  
666 +(((
582 582   [[image:1654159460680-153.png]]
668 +)))
583 583  
584 584  
585 585  
672 +
586 586  ==== **Set Payload version** ====
587 587  
675 +(((
588 588  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.
677 +)))
589 589  
590 -* **AT Command:**
679 +* (((
680 +**AT Command:**
681 +)))
591 591  
592 592  (% class="box infomessage" %)
593 593  (((
685 +(((
594 594  **AT+PAYVER: Set PAYVER field = 1**
595 595  )))
688 +)))
596 596  
597 -* **Downlink Payload:**
690 +* (((
691 +**Downlink Payload:**
692 +)))
598 598  
694 +(((
599 599  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
696 +)))
600 600  
698 +(((
601 601  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
700 +)))
602 602  
603 603  
604 604  
704 +
605 605  ==== **Set RS485 Sampling Commands** ====
606 606  
607 607  AT+COMMANDx or AT+DATACUTx
... ... @@ -732,7 +732,7 @@
732 732  
733 733  * **AT Command:**
734 734  
735 -No AT Command for this, user can press the [[ACT button>>path:#Button]] for 1 second for the same.
835 +No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
736 736  
737 737  
738 738  * **Downlink Payload:**
... ... @@ -756,7 +756,7 @@
756 756  
757 757  The uplink screen shot is:
758 758  
759 -[[image:1654160691922-496.png]][[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
859 +[[image:1654160691922-496.png]]
760 760  
761 761  
762 762  * **Downlink Payload:**
... ... @@ -855,9 +855,8 @@
855 855  |=**Button**|=(% style="width: 1420px;" %)**Feature**
856 856  |**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**
857 857  |**RST**|(% style="width:1420px" %)Reboot RS485
858 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>path:#upgrade_image]]
958 +|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
859 859  
860 -
861 861  == 3.8 LEDs ==
862 862  
863 863  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -865,7 +865,6 @@
865 865  |**PWR**|Always on if there is power
866 866  |**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.
867 867  
868 -
869 869  = 4. Case Study =
870 870  
871 871  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]]
... ... @@ -885,7 +885,7 @@
885 885  [[image:1654162368066-342.png]]
886 886  
887 887  
888 -More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]]
986 +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/]]
889 889  
890 890  
891 891  == 5.2 Common AT Command Sequence ==
... ... @@ -977,7 +977,9 @@
977 977  
978 978  **Step3: **Open flashloader; choose the correct COM port to update.
979 979  
1078 +(((
980 980  (% 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.
1080 +)))
981 981  
982 982  
983 983  [[image:image-20220602175818-12.png]]
... ... @@ -1060,30 +1060,60 @@
1060 1060  
1061 1061  = 10. FCC Caution for RS485LN-US915 =
1062 1062  
1163 +(((
1063 1063  Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1165 +)))
1064 1064  
1167 +(((
1065 1065  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.
1169 +)))
1066 1066  
1171 +(((
1172 +
1173 +)))
1067 1067  
1175 +(((
1068 1068  **IMPORTANT NOTE:**
1177 +)))
1069 1069  
1179 +(((
1070 1070  **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:
1181 +)))
1071 1071  
1183 +(((
1072 1072  —Reorient or relocate the receiving antenna.
1185 +)))
1073 1073  
1187 +(((
1074 1074  —Increase the separation between the equipment and receiver.
1189 +)))
1075 1075  
1191 +(((
1076 1076  —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1193 +)))
1077 1077  
1195 +(((
1078 1078  —Consult the dealer or an experienced radio/TV technician for help.
1197 +)))
1079 1079  
1199 +(((
1200 +
1201 +)))
1080 1080  
1203 +(((
1081 1081  **FCC Radiation Exposure Statement:**
1205 +)))
1082 1082  
1207 +(((
1083 1083  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.
1209 +)))
1084 1084  
1085 1085  
1086 1086  = 11. Support =
1087 1087  
1088 -* 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.
1089 -* 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]].
1214 +* (((
1215 +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.
1216 +)))
1217 +* (((
1218 +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]].
1219 +)))
image-20220606110929-1.png
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