Symbol SE 923, Integration Manual

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SE-923 Scan Engine Integration Guide
REPLY_REVISION
Description: Reply to REQUEST_REVISION command with software
revision string
Packet Format
Field Descriptions
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
Length Opcode Message Source Status Revision Checksum
0xA4 0x00
Field Name Format Size Description
Length Length of message (not
including checksum). 1 Byte Length Field
Opcode 0xA4 1 Byte Identifies this Opcode type.
Message
Source 0 = Decoder 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.
Revision ASCII data variable Software revision in ASCII (see
format below).
Checksum 2's complement sum of
message contents
excluding checksum. 2 Bytes Checksum of message.