Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 57.21 >
edited by Xiaoling
on 2022/06/06 09:14
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  )))
... ... @@ -302,15 +302,15 @@
302 302  )))
303 303  )))
304 304  
305 -(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
306 -|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
307 -|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" %)(((
308 308  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
309 309  
310 310  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
311 311  
312 312  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
313 -)))|(% 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
314 314  
315 315  
316 316  
... ... @@ -359,8 +359,8 @@
359 359  
360 360  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
361 361  
362 -(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
363 -|(% style="width:722px" %)(((
377 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
378 +|(% style="width:510px" %)(((
364 364  **AT+DATACUTx=a,b,c**
365 365  
366 366  * **a: length for the return of AT+COMMAND**
... ... @@ -486,33 +486,33 @@
486 486  
487 487  == 3.4 Uplink Payload ==
488 488  
489 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
490 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
491 -|Value|(% style="width:120px" %)(((
492 -Battery(mV)
493 493  
494 -&
505 +[[image:image-20220606110929-1.png]]
495 495  
496 -Interrupt _Flag
497 -)))|(% style="width:116px" %)(((
498 -PAYLOAD_VER
499 -
500 -
501 -)))|(% 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.
502 -
503 503  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
504 504  
505 505  
506 506  == 3.5 Configure RS485-BL via AT or Downlink ==
507 507  
512 +(((
508 508  User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
514 +)))
509 509  
516 +(((
510 510  There are two kinds of Commands:
518 +)))
511 511  
512 -* (% 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]]
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 +)))
513 513  
514 -* (% 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 +)))
515 515  
528 +(((
529 +
530 +)))
516 516  
517 517  
518 518  === 3.5.1 Common Commands ===
... ... @@ -533,82 +533,160 @@
533 533  
534 534  
535 535  
551 +
536 536  ==== **RS485 Debug Command** ====
537 537  
554 +(((
538 538  This command is used to configure the RS485 devices; they won’t be used during sampling.
556 +)))
539 539  
540 -* **AT Command**
558 +* (((
559 +**AT Command**
560 +)))
541 541  
542 542  (% class="box infomessage" %)
543 543  (((
564 +(((
544 544  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
545 545  )))
567 +)))
546 546  
569 +(((
547 547  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
571 +)))
548 548  
549 -* **Downlink Payload**
573 +* (((
574 +**Downlink Payload**
575 +)))
550 550  
577 +(((
551 551  Format: A8 MM NN XX XX XX XX YY
579 +)))
552 552  
581 +(((
553 553  Where:
583 +)))
554 554  
555 -* MM: 1: add CRC-16/MODBUS ; 0: no CRC
556 -* NN: The length of RS485 command
557 -* XX XX XX XX: RS485 command total NN bytes
558 -* YY: How many bytes will be uplink from the return of this RS485 command,
559 -** if YY=0, RS485-LN will execute the downlink command without uplink;
560 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
561 -** 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 +)))
562 562  
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 +(((
563 563  **Example 1** ~-~-> Configure without ask for uplink (YY=0)
612 +)))
564 564  
614 +(((
565 565  To connect a Modbus Alarm with below commands.
616 +)))
566 566  
567 -* 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 +)))
568 568  
569 -* 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 +)))
570 570  
626 +(((
571 571  So if user want to use downlink command to control to RS485 Alarm, he can use:
628 +)))
572 572  
630 +(((
573 573  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
632 +)))
574 574  
634 +(((
575 575  (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
636 +)))
576 576  
638 +(((
577 577  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 +)))
578 578  
642 +(((
643 +
644 +)))
579 579  
646 +(((
580 580  **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
648 +)))
581 581  
650 +(((
582 582  User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
652 +)))
583 583  
654 +(((
655 +
656 +)))
584 584  
658 +(((
585 585  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 +)))
586 586  
662 +(((
587 587   **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
664 +)))
588 588  
666 +(((
589 589   [[image:1654159460680-153.png]]
668 +)))
590 590  
591 591  
592 592  
672 +
593 593  ==== **Set Payload version** ====
594 594  
675 +(((
595 595  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 +)))
596 596  
597 -* **AT Command:**
679 +* (((
680 +**AT Command:**
681 +)))
598 598  
599 599  (% class="box infomessage" %)
600 600  (((
685 +(((
601 601  **AT+PAYVER: Set PAYVER field = 1**
602 602  )))
688 +)))
603 603  
604 -* **Downlink Payload:**
690 +* (((
691 +**Downlink Payload:**
692 +)))
605 605  
694 +(((
606 606  **0xAE 01**  ~-~-> Set PAYVER field =  0x01
696 +)))
607 607  
698 +(((
608 608  **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
700 +)))
609 609  
610 610  
611 611  
704 +
612 612  ==== **Set RS485 Sampling Commands** ====
613 613  
614 614  AT+COMMANDx or AT+DATACUTx
... ... @@ -739,7 +739,7 @@
739 739  
740 740  * **AT Command:**
741 741  
742 -No AT Command for this, user can press the [[ACT button>>||anchor="3.7Buttons"]] 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.
743 743  
744 744  
745 745  * **Downlink Payload:**
... ... @@ -763,7 +763,7 @@
763 763  
764 764  The uplink screen shot is:
765 765  
766 -[[image:1654160691922-496.png]][[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
859 +[[image:1654160691922-496.png]]
767 767  
768 768  
769 769  * **Downlink Payload:**
... ... @@ -862,9 +862,8 @@
862 862  |=**Button**|=(% style="width: 1420px;" %)**Feature**
863 863  |**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**
864 864  |**RST**|(% style="width:1420px" %)Reboot RS485
865 -|**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"]]
866 866  
867 -
868 868  == 3.8 LEDs ==
869 869  
870 870  (% border="1" style="background-color:#f7faff; width:500px" %)
... ... @@ -872,7 +872,6 @@
872 872  |**PWR**|Always on if there is power
873 873  |**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.
874 874  
875 -
876 876  = 4. Case Study =
877 877  
878 878  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]]
... ... @@ -892,7 +892,7 @@
892 892  [[image:1654162368066-342.png]]
893 893  
894 894  
895 -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/]]
896 896  
897 897  
898 898  == 5.2 Common AT Command Sequence ==
... ... @@ -984,7 +984,9 @@
984 984  
985 985  **Step3: **Open flashloader; choose the correct COM port to update.
986 986  
1078 +(((
987 987  (% 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 +)))
988 988  
989 989  
990 990  [[image:image-20220602175818-12.png]]
... ... @@ -1067,30 +1067,60 @@
1067 1067  
1068 1068  = 10. FCC Caution for RS485LN-US915 =
1069 1069  
1163 +(((
1070 1070  Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1165 +)))
1071 1071  
1167 +(((
1072 1072  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 +)))
1073 1073  
1171 +(((
1172 +
1173 +)))
1074 1074  
1175 +(((
1075 1075  **IMPORTANT NOTE:**
1177 +)))
1076 1076  
1179 +(((
1077 1077  **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 +)))
1078 1078  
1183 +(((
1079 1079  —Reorient or relocate the receiving antenna.
1185 +)))
1080 1080  
1187 +(((
1081 1081  —Increase the separation between the equipment and receiver.
1189 +)))
1082 1082  
1191 +(((
1083 1083  —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1193 +)))
1084 1084  
1195 +(((
1085 1085  —Consult the dealer or an experienced radio/TV technician for help.
1197 +)))
1086 1086  
1199 +(((
1200 +
1201 +)))
1087 1087  
1203 +(((
1088 1088  **FCC Radiation Exposure Statement:**
1205 +)))
1089 1089  
1207 +(((
1090 1090  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 +)))
1091 1091  
1092 1092  
1093 1093  = 11. Support =
1094 1094  
1095 -* 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.
1096 -* 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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1 +XWiki.Xiaoling
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