SIMPLE SERIAL INTERFACE
77
SLEEP
Description: Request to place the reader into sleep state
Packet Format
Length
Opcode
Message Source
Status
Data Checksum
0X04
0XEB
0X04
Field Descriptions
Field Name
Format
Size
Description
Length
Length of message (not
including checksum).
1 Byte
Length Field
Opcode
0XEB
1 Byte
Identifies this opcode type.
Message
Source
4 = Host
1 Byte
Identifies where the message
is coming from.
Status
Bit 0: Retransmit
Bit 1-7: Unused
1 Byte
Identifies the transmission
status.
Unused bits must be set to 0.
Data
None
Checksum
2's complement sum of
message contents
excluding checksum.
2 Byte
Checksum of message.
Host Requirements
The host sends this command to place the reader into sleep state. If the sleep state
parameter is enabled, the reader goes into sleep state automatically, and the SLEEP
command is not necessary.
Note:
The reader may not sleep immediately upon acknowledging the command if it
is busy processing data.
Reader Requirements
None.
Содержание Dragon D151
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