Mindeo ES4200, Руководство пользователя

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4-9 PARAM_DEFAULTS
Description: Set the parameters to factory default values
Packet Format
Length Opcode Status Setting type Checksum
0x04
0x25
(‘%’)
Field Descriptions
Table 4-11 Field Descriptions
Field Name Format Size Description
Length
Length of message (not including
checksum).
1 Byte Length Field
Opcode 0x25 1 Byte Identifies this opcode type.
Status
Bit 0：Retransmit
Bit 1-6：Unused
Bit 7: Command source
1 Byte
Bit 0: Identifies the transmission status.
Bit 7:
1: Command is from the host.
0: Command is from the scanner
All unused bits must be set to 0.
Setting type Default setting type 1 Byte
0-255.
0: Default setting 0 (Mindeo standard)
1: Default setting 1
2: Default setting 2
others: Reserved
Checksum
2's complement sum of message
contents excluding checksum.
2 Bytes Checksum of message.
For example:
return all parameters to the factory default setting values.
Length Opcode Status Setting type Checksum
0x04 0x25 0x80 0x00 0xFF 0x57
Host Requirements
The host sends this command to reset the scanner’s parameter settings to the factory default values.
Scanner Requirements
The scanner responds with a ACK or NAK and return all parameters to the factory default setting values
(excluding scanning mode parameters) if ACK/NAK handshaking is enabled, when a
PARAM_DEFAULTS command received. The command has the same effect with the Default Value
Initialization barcode on the scanner.