80H (External Temperature and Humidity Alarm)

This message can be sent to the backend server when an external temperature/humidity alarm event is detected. For the temperature/humidity alarm event detection, please refer to AT@ETH command.

The frame format of a report that only carries 80H record is as follows:

For example (Total 43 bytes):
2B 00 00 2B 00 01 23 45 67 89 01 23 45 C0 31 00 0A 00 00 14 66 8E 47 F7 00 00 80 10 7A 09 01 00 02 8A 1E 5D D5 2E FA 01 23 74 24

Parts	Fields		Length (Byte)	Range/Format	Default
Head			18 or 20
Reserved			1 or 1+N
Records	Record Length		1 or 2	00H-7FH or 8080H-FFFFH
	Generated Time		4
	Record Count Number		2	0000H-FFFFH
	Record ID		1	80H	80H
	Event Code		1
	Data of Record	Data ID	1 or 2	00H-7FH or 8080H-FFFFH
		Data Length	1 or 2	00H-7FH or 8080H-FFFFH
		Data Content	N
		…
	…
Tail			4

The definitions of parts ‘Head’, ‘Reserved’, and ‘Tail’ are here.

• Event Code

  Use a byte to indicate the event code. The byte is defined as follows:

  • Appended Report (Bit7)

    Always 0 for 80H report.

  • Event (Bit6 to Bit4)

    Indicates which event caused the message to be generated.

    • 0b000 - Reserved.

    • 0b001 - External temperature returns to normal.

    • 0b010 - External temperature is low.

    • 0b011 - External temperature is high.

    • 0b100 - External humidity returns to normal.

    • 0b101 - External humidity is low.

    • 0b110 - External humidity is high.

    • 0b111 - Reserved.

  • Alarm ID (Bit3 to Bit0)

    Indicates which alarm ID triggers the alarm.

  • 0b0000 - Alarm ID 0.

  • 0b0001 - Alarm ID 1.

  • 0b0010 - Alarm ID 2.

  • 0b0011 - Alarm ID 3.

  • 0b0100 - Alarm ID 4.

  • 0b0101 - Alarm ID 5.

  • 0b0110 - Alarm ID 6.

  • 0b0111 - Alarm ID 7.

  • 0b1000 - Alarm ID 8.

  • 0b1001 - Alarm ID 9.

  • Others - Reserved.

• Data of Record

  It consists of one or more Data ID units.

  By default, this record contains only the data IDs listed below, which can be changed by the AT@QRC command described below.

  • Data 122 - External Temperature and Humidity.

Configuration

The parameters related to the generation and transmission of 80H record are controlled by the following QRC command:

Example:
AT@QRC=gl601###,80,,,1,2|88,012F$
+ACK:QRC,123456789012345,C031,10,0,80,012F,20210407101530,1234$
AT@QRC?gl601###,80,0C37$
+QRY:QRC,123456789012345,C031,10,0,1,1,80,,,1,2|88,0C37,20210407101530,1234$

Parts	Fields	Length (Byte)	Range/Format	Default
Head	Header	3	AT@	AT@
	Command Word	3	QRC	QRC
	Leading Symbol	1	=	=
	Password	8-16		gl601###
Body	Record ID	2	80	80
	Reserved	0
	Reserved	0
	Action	1	0-2
	Data IDs	N	ID1|ID2|ID3…
Tail	Sequence Number	4	0000-FFFF (‘0’-‘9’, ‘A’-‘F’)
	Tail	1	$	$

• Record ID

  Which record to configure. Always “80” here.

• Action

  • Empty - No change the data IDs in the terminal. If this field is empty, the ‘Data IDs’ field will be ignored.

  • 0 - Append the data IDs carried in the ‘Data IDs’ field to the terminal.

  • 1 - Replace the data IDs in the terminal with the data IDs carried by the ‘Data IDs’ field.

  • 2 - Clear the data IDs carried in the ‘Data IDs’ field from the terminal.

  Note: In particular, it always will be 1 when reading this field.

• Data IDs

  The data IDs contained in the 80H record. The characters ‘|’ are used to connect each data ID.

  For example, “2|88” means Data 2 (Device Name) and Data 88 (SIM Card).