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Last modified by Xiaoling on 2025/04/23 15:57
From version 25.1
edited by Xiaoling
on 2022/05/23 10:26
Change comment: Uploaded new attachment "1653272787040-634.png", version {1}
To version 18.2
edited by Xiaoling
on 2022/05/23 10:01
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397 397  
398 398  **AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
399 399  
400 -(% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:501px" %)
400 +(% border="1" class="table-bordered" style="background-color:#ffffcc; color:green; width:501px" %)
401 401  |(% style="width:498px" %)(((
402 402  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
403 403  
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412 412  
413 413  **AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
414 414  
415 -(% border="1" class="table-bordered" style="background-color:#4f81bd; color:white; width:580px" %)
415 +(% border="1" class="table-bordered" style="background-color:#ffffcc; color:green; width:580px" %)
416 416  |(% style="width:577px" %)(((
417 417  **AT+SEARCHx=aa,xx xx xx xx xx**
418 418  
... ... @@ -430,6 +430,7 @@
430 430  
431 431  [[image:1653271044481-711.png]]
432 432  
433 +
433 433  1. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
434 434  
435 435  If we set AT+SEARCH1=2, 1E 56 34+31 00 49
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436 436  
437 437  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**
438 438  
439 -[[image:1653271276735-972.png]]
440 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
440 440  
442 +
441 441  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
442 442  
443 -(% style="background-color:#4f81bd; color:white; width:729px" %)
444 -|(% style="width:726px" %)(((
445 +|(((
445 445  **AT+DATACUTx=a,b,c**
446 446  
447 447  * **a: length for the return of AT+COMMAND**
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453 453  
454 454  * Grab bytes:
455 455  
456 -[[image:1653271581490-837.png||height="313" width="722"]]
457 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
457 457  
458 458  * Grab a section.
459 459  
460 -[[image:1653271648378-342.png||height="326" width="720"]]
461 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
461 461  
462 462  * Grab different sections.
463 463  
464 -[[image:1653271657255-576.png||height="305" width="730"]]
465 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
465 465  
466 -(((
467 -(% style="color:red" %)**Note:**
468 -)))
469 469  
470 -(((
468 +Note:
469 +
471 471  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.
472 -)))
473 473  
474 -(((
475 -**Example:**
476 -)))
472 +Example:
477 477  
478 -(((
479 -(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
480 -)))
474 +AT+COMMAND1=11 01 1E D0,0
481 481  
482 -(((
483 -(% style="color:red" %)AT+SEARCH1=1,1E 56 34
484 -)))
476 +AT+SEARCH1=1,1E 56 34
485 485  
486 -(((
487 -(% style="color:red" %)AT+DATACUT1=0,2,1~~5
488 -)))
478 +AT+DATACUT1=0,2,1~~5
489 489  
490 -(((
491 -(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
492 -)))
480 +Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
493 493  
494 -(((
495 -(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
496 -)))
482 +String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
497 497  
498 -(((
499 -(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
500 -)))
484 +Valid payload after DataCUT command: 2e 30 58 5f 36
501 501  
502 -[[image:1653271763403-806.png]]
486 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
503 503  
504 504  
505 505  
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