Reply_Revision - Symbol SE 923 Integration Manual

SE-923 Scan Engine Integration Guide

REPLY_REVISION

Description: Reply to REQUEST_REVISION command with software
revision string
Packet Format
Length
Field Descriptions
Field Name
Length
Opcode
Message
Source
Status
Revision
Checksum
Host Requirements
None.
Decoder Requirements
The decoder sends its revision string to the host. The revision string is in the following format:
S/W_REVISION <space> BOARD_TYPE <space> SCANNER_ID <space> PGM_CHKSUM
Where:
S/W_REVISION is the release name of the software
•
6-26
Opcode Message Source
0xA4 0x00
Format
Length of message (not
including checksum).
0xA4
0 = Decoder
Bit 0: Retransmit
Bit 1-7: Unused
ASCII data
2's complement sum of
message contents
excluding checksum.
Status Revision
Size
1 Byte Length Field
1 Byte Identifies this Opcode type.
1 Byte Identifies where the message is
coming from.
1 Byte Identifies the transmission status.
Unused bits must be set to 0.
variable Software revision in ASCII (see
format below).
2 Bytes Checksum of message.
Checksum
Description