Last modified by Karry Zhuang on 2025/03/06 16:34
<
From version < 32.14 >
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

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... ... @@ -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  (((
... ... @@ -290,10 +290,12 @@
290 290  === 3.3.2 Configure sensors ===
291 291  
292 292  (((
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 +
293 293  (((
294 -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.
295 295  )))
296 -)))
297 297  
298 298  (% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
299 299  |**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
... ... @@ -305,6 +305,8 @@
305 305  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
306 306  )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
307 307  
289 +Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
290 +
308 308  === 3.3.3 Configure read commands for each sampling ===
309 309  
310 310  (((
... ... @@ -386,17 +386,11 @@
386 386  **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
387 387  )))
388 388  
389 -(((
390 390  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.
391 -)))
392 392  
393 -(((
394 394  In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
395 -)))
396 396  
397 -(((
398 398  **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
399 -)))
400 400  
401 401  (% border="1" class="table-bordered" %)
402 402  |(((
... ... @@ -408,24 +408,26 @@
408 408  
409 409  )))
410 410  
411 -**Examples:**
388 +Examples:
412 412  
413 -~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
414 414  
415 415  If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
416 416  
417 -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
418 418  
419 -[[image:1653269403619-508.png]]
396 +[[image:1652954654347-831.png]]
420 420  
421 -2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
422 422  
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 +
423 423  If we set AT+SEARCH1=2, 1E 56 34+31 00 49
424 424  
425 -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
426 426  
427 -[[image:1653269438444-278.png]]
405 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
428 428  
407 +
429 429  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
430 430  
431 431  |(((
... ... @@ -440,95 +440,94 @@
440 440  
441 441  * Grab bytes:
442 442  
443 -[[image:1653269551753-223.png||height="311" width="717"]]
422 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
444 444  
445 445  * Grab a section.
446 446  
447 -[[image:1653269568276-930.png||height="325" width="718"]]
426 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
448 448  
449 449  * Grab different sections.
450 450  
451 -[[image:1653269593172-426.png||height="303" width="725"]]
430 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
452 452  
453 -(% style="color:red" %)**Note:**
454 454  
433 +Note:
434 +
455 455  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.
456 456  
457 457  Example:
458 458  
459 -(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
439 +AT+COMMAND1=11 01 1E D0,0
460 460  
461 -(% style="color:red" %)AT+SEARCH1=1,1E 56 34
441 +AT+SEARCH1=1,1E 56 34
462 462  
463 -(% style="color:red" %)AT+DATACUT1=0,2,1~~5
443 +AT+DATACUT1=0,2,1~~5
464 464  
465 -(% 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
466 466  
467 -(% 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
468 468  
469 -(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
449 +Valid payload after DataCUT command: 2e 30 58 5f 36
470 470  
471 -[[image:1653269618463-608.png]]
451 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
472 472  
473 -=== 3.3.4 Compose the uplink payload ===
474 474  
475 -(((
454 +
455 +
456 +1.
457 +11.
458 +111. Compose the uplink payload
459 +
476 476  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.**
477 -)))
478 478  
479 -(((
480 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
481 -)))
482 482  
483 -(((
484 -Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
485 -)))
463 +**Examples: AT+DATAUP=0**
486 486  
487 -(((
465 +Compose the uplink payload with value returns in sequence and send with **A SIGNLE UPLINK**.
466 +
488 488  Final Payload is
489 -)))
490 490  
491 -(((
492 -(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
493 -)))
469 +Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
494 494  
495 -(((
496 496  Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
497 -)))
498 498  
499 -[[image:1653269759169-150.png||height="513" width="716"]]
473 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
500 500  
501 -(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
502 502  
503 -Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
504 504  
477 +**Examples: AT+DATAUP=1**
478 +
479 +Compose the uplink payload with value returns in sequence and send with **Multiply UPLINKs**.
480 +
505 505  Final Payload is
506 506  
507 -(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
483 +Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
508 508  
509 509  1. Battery Info (2 bytes): Battery voltage
510 510  1. PAYVER (1 byte): Defined by AT+PAYVER
511 511  1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
512 512  1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
513 -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
514 514  
515 -[[image:1653269916228-732.png||height="433" width="711"]]
491 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
516 516  
517 517  
518 518  So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
519 519  
520 -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
521 521  
522 -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
523 523  
524 -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
525 525  
502 +
503 +
526 526  Below are the uplink payloads:
527 527  
528 -[[image:1653270130359-810.png]]
506 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]
529 529  
530 530  
531 -(% 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:
532 532  
533 533   ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
534 534  
... ... @@ -538,8 +538,12 @@
538 538  
539 539   ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
540 540  
541 -=== 3.3.5 Uplink on demand ===
542 542  
520 +
521 +1.
522 +11.
523 +111. Uplink on demand
524 +
543 543  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.
544 544  
545 545  Downlink control command:
... ... @@ -550,8 +550,8 @@
550 550  
551 551  
552 552  
553 -1.
554 -11.
535 +1.
536 +11.
555 555  111. Uplink on Interrupt
556 556  
557 557  Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
... ... @@ -565,7 +565,7 @@
565 565  AT+INTMOD=3  Interrupt trigger by rising edge.
566 566  
567 567  
568 -1.
550 +1.
569 569  11. Uplink Payload
570 570  
571 571  |**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
... ... @@ -627,15 +627,15 @@
627 627  
628 628  * **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
629 629  
630 -1.
631 -11.
612 +1.
613 +11.
632 632  111. Common Commands:
633 633  
634 634  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]]
635 635  
636 636  
637 -1.
638 -11.
619 +1.
620 +11.
639 639  111. Sensor related commands:
640 640  
641 641  ==== Choose Device Type (RS485 or TTL) ====
... ... @@ -941,13 +941,13 @@
941 941  
942 942  
943 943  
944 -1.
926 +1.
945 945  11. Buttons
946 946  
947 947  |**Button**|**Feature**
948 948  |**RST**|Reboot RS485-BL
949 949  
950 -1.
932 +1.
951 951  11. +3V3 Output
952 952  
953 953  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
... ... @@ -965,7 +965,7 @@
965 965  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
966 966  
967 967  
968 -1.
950 +1.
969 969  11. +5V Output
970 970  
971 971  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
... ... @@ -985,13 +985,13 @@
985 985  
986 986  
987 987  
988 -1.
970 +1.
989 989  11. LEDs
990 990  
991 991  |**LEDs**|**Feature**
992 992  |**LED1**|Blink when device transmit a packet.
993 993  
994 -1.
976 +1.
995 995  11. Switch Jumper
996 996  
997 997  |**Switch Jumper**|**Feature**
... ... @@ -1037,7 +1037,7 @@
1037 1037  
1038 1038  
1039 1039  
1040 -1.
1022 +1.
1041 1041  11. Common AT Command Sequence
1042 1042  111. Multi-channel ABP mode (Use with SX1301/LG308)
1043 1043  
... ... @@ -1056,8 +1056,8 @@
1056 1056  
1057 1057  ATZ
1058 1058  
1059 -1.
1060 -11.
1041 +1.
1042 +11.
1061 1061  111. Single-channel ABP mode (Use with LG01/LG02)
1062 1062  
1063 1063  AT+FDR   Reset Parameters to Factory Default, Keys Reserve
... ... @@ -1132,7 +1132,7 @@
1132 1132  [[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]]
1133 1133  
1134 1134  
1135 -1.
1117 +1.
1136 1136  11. How to change the LoRa Frequency Bands/Region?
1137 1137  
1138 1138  User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
... ... @@ -1139,7 +1139,7 @@
1139 1139  
1140 1140  
1141 1141  
1142 -1.
1124 +1.
1143 1143  11. How many RS485-Slave can RS485-BL connects?
1144 1144  
1145 1145  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]].
... ... @@ -1156,7 +1156,7 @@
1156 1156  
1157 1157  
1158 1158  
1159 -1.
1141 +1.
1160 1160  11. Why I can’t join TTN V3 in US915 /AU915 bands?
1161 1161  
1162 1162  It might about the channels mapping. Please see for detail.
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