Symbol MiniScan MS-804FZY, Integration Manual

Page: 169 / 184

8-1
Chapter 8
Simple Serial Interface (SSI)
Simple Serial Interface (SSI)
The MS-804FZY and MS-904HS scanners communicate with a host device using Symbol's
Simple Serial Interface (SSI).
The Simple Serial Interface (SSI) Programmer’s Guide ( p/n 72-40451-xx) provides general
information on SSI, includes information on the decoder’s hardware signals, and describes
the commands. The following SSI information is specific to the MiniScan scanner.
Note: The MS-804FZY/MS-904HS only supports Multipacketing Option 1.
See the SSI Programmer’s Guide for more information.
Revision String
When the decoder sends the REPLY_REVISION message, the revision string is in the
following format:
S/W_REVISION <space> BOARD_TYPE <space> ENGINE_CODE <space> PGM_CHKSUM
where:
• S/W_REVISION is the release name of the software
• BOARD_TYPE is N for non-flash decoder board, F for flash
• ENGINE_CODE indicates the type of scanner paired with the decoder
• PGM_CHKSUM is the two-byte checksum of the program code.