23H (External Power Information)

This message is used to report the External Power information of terminal.

The frame format of a report that only carries 23H record is as follows:

For example (Total 37 bytes):
2B 00 00 25 00 01 23 45 67 89 01 23 45 00 00 00 1B 00 00 0E 64 F9 AA F6 00 00 23 00 57 03 01 2E E0 01 23 C7 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	23H	23H
	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

  • 00H - The external power voltage returns to normal.

  • 01H - The external power voltage is low (please see the AT@EPS command).

  • 10H - The external power stops supplying.

  • 11H - The external power starts supplying.

• 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 87 - External Power Voltage.

Configuration

The parameters related to the generation and transmission of 23H record are controlled by the following QRC command:

Example:
AT@QRC=gv500cna,23,,1,1,2|88,012F$
+ACK:QRC,123456789012345,8203,3,0,23,012F,20210407101530,1234$
AT@QRC?gv500cna,23,0C37$
+QRY:QRC,123456789012345,8203,3,0,1,1,23,,1,1,2|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		gv500cna
Body	Record ID	2	23	23
	Reserved	0
	Mode	<=2	0, 1	1
	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 “23” here.

• Mode

  • 0 - Disable. The terminal no longer generates and sends the 23H record.

  • 1 - Enable Report. The terminal generates and sends the 23H record. If the location information needs to be included, the terminal directly uses the currently existing location information (even if the location information has expired).

• 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 23H record. The characters ‘|’ are used to connect each data ID.

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