Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 32.15 >
edited by Xiaoling
on 2022/06/02 15:26
To version < 22.6 >
edited by Xiaoling
on 2022/05/23 09:17
>
Change comment: There is no comment for this version

Summary

Details

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Content
... ... @@ -18,30 +18,26 @@
18 18  
19 19  (((
20 20  (((
21 -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.
21 +The Dragino RS485-LN is a RS485 to LoRaWAN Converter. It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
22 22  )))
23 23  
24 24  (((
25 -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.
25 +RS485-LN allows user to 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.
26 26  )))
27 27  
28 28  (((
29 -(% 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.
29 +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.
30 30  )))
31 31  
32 32  (((
33 -(% 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.
34 -
35 -(% 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]]
33 +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.
36 36  )))
37 37  )))
38 38  
39 39  [[image:1653267211009-519.png||height="419" width="724"]]
40 40  
41 -
42 42  == 1.2 Specifications ==
43 43  
44 -
45 45  **Hardware System:**
46 46  
47 47  * STM32L072CZT6 MCU
... ... @@ -48,6 +48,8 @@
48 48  * SX1276/78 Wireless Chip 
49 49  * Power Consumption (exclude RS485 device):
50 50  ** Idle: 32mA@12v
47 +
48 +*
51 51  ** 20dB Transmit: 65mA@12v
52 52  
53 53  **Interface for Model:**
... ... @@ -76,8 +76,6 @@
76 76  * Automatic RF Sense and CAD with ultra-fast AFC.
77 77  * Packet engine up to 256 bytes with CRC.
78 78  
79 -
80 -
81 81  == 1.3 Features ==
82 82  
83 83  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -89,8 +89,6 @@
89 89  * Support Modbus protocol
90 90  * Support Interrupt uplink (Since hardware version v1.2)
91 91  
92 -
93 -
94 94  == 1.4 Applications ==
95 95  
96 96  * Smart Buildings & Home Automation
... ... @@ -100,13 +100,10 @@
100 100  * Smart Cities
101 101  * Smart Factory
102 102  
103 -
104 -
105 105  == 1.5 Firmware Change log ==
106 106  
107 107  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
108 108  
109 -
110 110  == 1.6 Hardware Change log ==
111 111  
112 112  (((
... ... @@ -114,8 +114,6 @@
114 114  v1.2: Add External Interrupt Pin.
115 115  
116 116  v1.0: Release
117 -
118 -
119 119  )))
120 120  )))
121 121  
... ... @@ -132,8 +132,6 @@
132 132  )))
133 133  
134 134  [[image:1653268091319-405.png]]
135 -
136 -
137 137  )))
138 138  
139 139  = 3. Operation Mode =
... ... @@ -142,8 +142,6 @@
142 142  
143 143  (((
144 144  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.
145 -
146 -
147 147  )))
148 148  
149 149  == 3.2 Example to join LoRaWAN network ==
... ... @@ -152,15 +152,10 @@
152 152  
153 153  [[image:1653268155545-638.png||height="334" width="724"]]
154 154  
155 -
156 156  (((
157 -(((
158 158  The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
159 -)))
160 160  
161 -(((
162 162  485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
163 -)))
164 164  
165 165  [[image:1653268227651-549.png||height="592" width="720"]]
166 166  
... ... @@ -212,7 +212,6 @@
212 212  
213 213  [[image:1652953568895-172.png||height="232" width="724"]]
214 214  
215 -
216 216  == 3.3 Configure Commands to read data ==
217 217  
218 218  (((
... ... @@ -222,8 +222,6 @@
222 222  
223 223  (((
224 224  (% 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
225 -
226 -
227 227  )))
228 228  )))
229 229  
... ... @@ -292,10 +292,12 @@
292 292  === 3.3.2 Configure sensors ===
293 293  
294 294  (((
272 +Some sensors might need to configure before normal operation. User can configure such sensor via PC or through RS485-BL AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**.
273 +)))
274 +
295 295  (((
296 -Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won’t run during each sampling.
276 +When user issue an (% style="color:#4f81bd" %)**AT+CFGDEV**(%%) command, Each (% style="color:#4f81bd" %)**AT+CFGDEV**(%%) equals to send a command to the RS485 or TTL sensors. This command will only run when user input it and won’t run during each sampling.
297 297  )))
298 -)))
299 299  
300 300  (% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
301 301  |**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
... ... @@ -307,6 +307,8 @@
307 307  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
308 308  )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
309 309  
289 +Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
290 +
310 310  === 3.3.3 Configure read commands for each sampling ===
311 311  
312 312  (((
... ... @@ -388,17 +388,11 @@
388 388  **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
389 389  )))
390 390  
391 -(((
392 392  For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
393 -)))
394 394  
395 -(((
396 396  In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
397 -)))
398 398  
399 -(((
400 400  **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
401 -)))
402 402  
403 403  (% border="1" class="table-bordered" %)
404 404  |(((
... ... @@ -410,24 +410,26 @@
410 410  
411 411  )))
412 412  
413 -**Examples:**
388 +Examples:
414 414  
415 -~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
390 +1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
416 416  
417 417  If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
418 418  
419 -The valid data will be all bytes after 1E 56 34 , so it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30 31 00 49**
394 +The valid data will be all bytes after 1E 56 34 , so it is 2e 30 58 5f 36 41 30 31 00 49
420 420  
421 -[[image:1653269403619-508.png]]
396 +[[image:1652954654347-831.png]]
422 422  
423 -2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
424 424  
399 +1. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
400 +
425 425  If we set AT+SEARCH1=2, 1E 56 34+31 00 49
426 426  
427 -Device will search the bytes between 1E 56 34 and 31 00 49. So it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30**
403 +Device will search the bytes between 1E 56 34 and 31 00 49. So it is 2e 30 58 5f 36 41 30
428 428  
429 -[[image:1653269438444-278.png]]
405 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
430 430  
407 +
431 431  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
432 432  
433 433  |(((
... ... @@ -442,95 +442,94 @@
442 442  
443 443  * Grab bytes:
444 444  
445 -[[image:1653269551753-223.png||height="311" width="717"]]
422 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
446 446  
447 447  * Grab a section.
448 448  
449 -[[image:1653269568276-930.png||height="325" width="718"]]
426 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
450 450  
451 451  * Grab different sections.
452 452  
453 -[[image:1653269593172-426.png||height="303" width="725"]]
430 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
454 454  
455 -(% style="color:red" %)**Note:**
456 456  
433 +Note:
434 +
457 457  AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0.
458 458  
459 459  Example:
460 460  
461 -(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
439 +AT+COMMAND1=11 01 1E D0,0
462 462  
463 -(% style="color:red" %)AT+SEARCH1=1,1E 56 34
441 +AT+SEARCH1=1,1E 56 34
464 464  
465 -(% style="color:red" %)AT+DATACUT1=0,2,1~~5
443 +AT+DATACUT1=0,2,1~~5
466 466  
467 -(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
445 +Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
468 468  
469 -(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
447 +String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
470 470  
471 -(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
449 +Valid payload after DataCUT command: 2e 30 58 5f 36
472 472  
473 -[[image:1653269618463-608.png]]
451 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
474 474  
475 -=== 3.3.4 Compose the uplink payload ===
476 476  
477 -(((
454 +
455 +
456 +1.
457 +11.
458 +111. Compose the uplink payload
459 +
478 478  Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
479 -)))
480 480  
481 -(((
482 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
483 -)))
484 484  
485 -(((
486 -Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
487 -)))
463 +**Examples: AT+DATAUP=0**
488 488  
489 -(((
465 +Compose the uplink payload with value returns in sequence and send with **A SIGNLE UPLINK**.
466 +
490 490  Final Payload is
491 -)))
492 492  
493 -(((
494 -(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
495 -)))
469 +Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
496 496  
497 -(((
498 498  Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
499 -)))
500 500  
501 -[[image:1653269759169-150.png||height="513" width="716"]]
473 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
502 502  
503 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
504 504  
505 -Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
506 506  
477 +**Examples: AT+DATAUP=1**
478 +
479 +Compose the uplink payload with value returns in sequence and send with **Multiply UPLINKs**.
480 +
507 507  Final Payload is
508 508  
509 -(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
483 +Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
510 510  
511 511  1. Battery Info (2 bytes): Battery voltage
512 512  1. PAYVER (1 byte): Defined by AT+PAYVER
513 513  1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
514 514  1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
515 -1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
489 +1. DATA: Valid value: max 6 bytes(US915 version here, [[Notice*!>>path:#max_byte]]) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
516 516  
517 -[[image:1653269916228-732.png||height="433" width="711"]]
491 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
518 518  
519 519  
520 520  So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
521 521  
522 -DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
496 +DATA1=RETURN1 Valid Value = 20 20 0a 33 90 41
523 523  
524 -DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
498 +DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10= 02 aa 05 81 0a 20
525 525  
526 -DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
500 +DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = 20 20 20 2d 30
527 527  
502 +
503 +
528 528  Below are the uplink payloads:
529 529  
530 -[[image:1653270130359-810.png]]
506 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]
531 531  
532 532  
533 -(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
509 +Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
534 534  
535 535   ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
536 536  
... ... @@ -540,8 +540,12 @@
540 540  
541 541   ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
542 542  
543 -=== 3.3.5 Uplink on demand ===
544 544  
520 +
521 +1.
522 +11.
523 +111. Uplink on demand
524 +
545 545  Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
546 546  
547 547  Downlink control command:
... ... @@ -552,8 +552,8 @@
552 552  
553 553  
554 554  
555 -1.
556 -11.
535 +1.
536 +11.
557 557  111. Uplink on Interrupt
558 558  
559 559  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
... ... @@ -567,7 +567,7 @@
567 567  AT+INTMOD=3  Interrupt trigger by rising edge.
568 568  
569 569  
570 -1.
550 +1.
571 571  11. Uplink Payload
572 572  
573 573  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
... ... @@ -629,15 +629,15 @@
629 629  
630 630  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
631 631  
632 -1.
633 -11.
612 +1.
613 +11.
634 634  111. Common Commands:
635 635  
636 636  They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
637 637  
638 638  
639 -1.
640 -11.
619 +1.
620 +11.
641 641  111. Sensor related commands:
642 642  
643 643  ==== Choose Device Type (RS485 or TTL) ====
... ... @@ -943,13 +943,13 @@
943 943  
944 944  
945 945  
946 -1.
926 +1.
947 947  11. Buttons
948 948  
949 949  |**Button**|**Feature**
950 950  |**RST**|Reboot RS485-BL
951 951  
952 -1.
932 +1.
953 953  11. +3V3 Output
954 954  
955 955  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -967,7 +967,7 @@
967 967  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
968 968  
969 969  
970 -1.
950 +1.
971 971  11. +5V Output
972 972  
973 973  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -987,13 +987,13 @@
987 987  
988 988  
989 989  
990 -1.
970 +1.
991 991  11. LEDs
992 992  
993 993  |**LEDs**|**Feature**
994 994  |**LED1**|Blink when device transmit a packet.
995 995  
996 -1.
976 +1.
997 997  11. Switch Jumper
998 998  
999 999  |**Switch Jumper**|**Feature**
... ... @@ -1039,7 +1039,7 @@
1039 1039  
1040 1040  
1041 1041  
1042 -1.
1022 +1.
1043 1043  11. Common AT Command Sequence
1044 1044  111. Multi-channel ABP mode (Use with SX1301/LG308)
1045 1045  
... ... @@ -1058,8 +1058,8 @@
1058 1058  
1059 1059  ATZ
1060 1060  
1061 -1.
1062 -11.
1041 +1.
1042 +11.
1063 1063  111. Single-channel ABP mode (Use with LG01/LG02)
1064 1064  
1065 1065  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1134,7 +1134,7 @@
1134 1134  [[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]]
1135 1135  
1136 1136  
1137 -1.
1117 +1.
1138 1138  11. How to change the LoRa Frequency Bands/Region?
1139 1139  
1140 1140  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1141,7 +1141,7 @@
1141 1141  
1142 1142  
1143 1143  
1144 -1.
1124 +1.
1145 1145  11. How many RS485-Slave can RS485-BL connects?
1146 1146  
1147 1147  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]].
... ... @@ -1158,7 +1158,7 @@
1158 1158  
1159 1159  
1160 1160  
1161 -1.
1141 +1.
1162 1162  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1163 1163  
1164 1164  It might about the channels mapping. Please see for detail.
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