Mindeo FS580 - Request_Revision

82
5-7 REQUEST_REVISION
Description: Request the software revision string from the scanner
Packet Format
Length
Opcode
Status
Checksum
0x03
0x56
Field Descriptions
Field Name
Format
Size
Description
Length
0x03
1 Byte
Length Field
Opcode
0x56
1 Byte
Identifies this opcode type.
Status
Bit 0: Identifies transmit status
Bit 6-1: Unused
Bit 7: Command source
1 Byte
Bit 0:
0=First time packet is sent
1= Subsequent transmission
attempts
Bit 7: always be 1(message is from
the host)
All unused bits recommend to be set
to 0.
Checksum
2's complement sum of message contents
excluding checksum.
2 Bytes
Checksum of message.
For example:
Length
Opcode
Status
Checksum
0x03
0x56
0x80
0xFF 0x27
Host Requirements
The host sends this message to request revision information from the scanner. The scanner responds
with REPLY_REVISION.
Scanner Requirements
The scanner sends its revision string to the host. See “5-8 REPLY_REVISION” .