SIMPLE SERIAL INTERFACE
67
PARAM_DEFAULTS
Description: Sets the parameters to their factory default values
Packet Format
Length
Opcode
Message Source
Status
Checksum
0x04
0XC8
0x04
Field Descriptions
Field Name
Format
Size
Description
Length
Length of message
(not including
checksum).
1 Byte
Length Field
Opcode
0XC8
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.
Checksum
2's complement
sum of message
contents excluding
checksum.
2 Byte
Checksum of message.
This command returns all parameters to their factory default settings.
Host Requirements
The host sends this command to reset the reader’s parameter settings to the factory
default values.
Reader Requirements
Upon receiving this command, the reader resets all its parameters to the factory
default values. The behavior is the same as scanning a SET DEFAULTS barcode.
Содержание Dragon D151
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