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Last modified by Mengting Qiu on 2025/06/10 18:53
From version 79.25
edited by Xiaoling
on 2022/06/24 17:24
Change comment: There is no comment for this version
To version 79.24
edited by Xiaoling
on 2022/06/24 17:24
Change comment: There is no comment for this version

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474 474  
475 475  == 3.3 Add or Delete RS485 Sensor ==
476 476  
477 -(((
478 478  Feature: User can add or delete 3^^rd^^ party sensor as long they are RS485/Modbus interface,baud rate support 9600.Maximum can add 4 sensors.
479 -)))
480 480  
481 -(((
482 482  (% style="color:#037691" %)**AT Command: **
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484 484  
485 -(((
486 486  (% style="color:blue" %)**AT+DYSENSOR=Type_Code, Query_Length, Query_Command , Read_Length , Valid_Data ,has_CRC,timeout**
487 -)))
488 488  
489 -* (((
490 -Type_Code range:  A1 ~~ A4
491 -)))
492 -* (((
493 -Query_Length:  RS485 Query frame length, Value cannot be greater than 10
494 -)))
495 -* (((
496 -Query_Command:  RS485 Query frame data to be sent to sensor, cannot be larger than 10 bytes
497 -)))
498 -* (((
499 -Read_Length:  RS485 response frame length supposed to receive. Max can receive
500 -)))
501 -* (((
502 -Valid_Data:  valid data from RS485 Response, Valid Data will be added to Payload and upload via LoRaWAN.
503 -)))
504 -* (((
505 -has_CRC:  RS485 Response crc check  (0: no verification required 1: verification required). If CRC=1 and CRC error, valid data will be set to 0.
506 -)))
507 -* (((
508 -timeout:  RS485 receive timeout (uint:ms). Device will close receive window after timeout
509 -)))
483 +* Type_Code range:  A1 ~~ A4
484 +* Query_Length:  RS485 Query frame length, Value cannot be greater than 10
485 +* Query_Command:  RS485 Query frame data to be sent to sensor, cannot be larger than 10 bytes
486 +* Read_Length:  RS485 response frame length supposed to receive. Max can receive
487 +* Valid_Data:  valid data from RS485 Response, Valid Data will be added to Payload and upload via LoRaWAN.
488 +* has_CRC:  RS485 Response crc check  (0: no verification required 1: verification required). If CRC=1 and CRC error, valid data will be set to 0.
489 +* timeout:  RS485 receive timeout (uint:ms). Device will close receive window after timeout
510 510  
511 -(((
512 512  **Example:**
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514 514  
515 -(((
516 516  User need to change external sensor use the type code as address code.
517 -)))
518 518  
519 -(((
520 520  With a 485 sensor, after correctly changing the address code to A1, the RS485 query frame is shown in the following table:
521 -)))
522 522  
523 523  [[image:image-20220624143553-10.png]]
524 524