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...	...	@@ -420,7 +420,7 @@
420	420
421	421	(% style="color:#037691" %)**AT Command: **
422	422
423		-**AT+DYSENSOR=Type_Code, Query_Length, Query_Command , Read_Length , Valid_Data ,has_CRC,timeout**
	423	+AT+DYSENSOR=Type_Code, Query_Length, Query_Command , Read_Length , Valid_Data ,has_CRC,timeout
424	424
425	425	* Type_Code range:  A1 ~~ A4
426	426	* Query_Length:  RS485 Query frame length, Value cannot be greater than 10
...	...	@@ -430,21 +430,22 @@
430	430	* 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.
431	431	* timeout:  RS485 receive timeout (uint:ms). Device will close receive window after timeout
432	432
	433	+Example:
433	433
434		-**Example:**
435		-
436	436	User need to change external sensor use the type code as address code.
437	437
438	438	With a 485 sensor, after correctly changing the address code to A1, the RS485 query frame is shown in the following table:
439	439
440		-[[image:image-20220624143553-10.png]]
	439	+|Address Code|Function Code|(% colspan="2" %)Start Register|(% colspan="2" %)Data Length|CRC Check Low|CRC Check High
	440	+|0xA1|0x03|0x00|0x00|0x00|0x01|0x9C|0xAA
	441	+| | | | | | | |
441	441
442		-
443	443	The response frame of the sensor is as follows:
444	444
445		-[[image:image-20220624143618-11.png]]
	445	+|Address Code|Function Code|(% colspan="2" %)Data Length|(% colspan="2" %)Data|CRC Check Low|CRC Check High
	446	+|0xA1|0x03|0x00|0x02|0x00|0x0A|0x7C|0xAD
	447	+| | | | | | | |
446	446
447		-
448	448	Then the following parameters should be:
449	449
450	450	* Address_Code range: A1
...	...	@@ -455,7 +455,6 @@
455	455	* has_CRC: 1
456	456	* timeout: 1500 (Fill in the test according to the actual situation)
457	457
458		-
459	459	So the input command is:
460	460
461	461	AT+DYSENSOR=A1,8,A103000000019CAA,8,24,1,1500

image-20220624143618-11.png

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1		-XWiki.Xiaoling

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