Rockwell Automation 2755 Enhanced Decoder Series B - Manual (Page 156)

11–2 Configuration: Host Message Format
Publication 2755-833
Some of the fields are controlled by the bar code itself. However,
most of the fields are controlled by the host message configuration
parameters. In addition, many of these same functions can be
performed using the Host Replacement Rules described earlier in this
manual.
Bar Code Host Message Format
ASCII BAR CODE DATA
11. End Message
(0 to 3)
10. Performance Indi-
cators. (0 or 6)
9. Package Count (0 or
6–DD, 0 or 3–DS)
7. Field Delimiter (0 or 1)
6. Bar Code Data or No-Read Message (0 to 64 characters, including start, stop, and
check characters. Up to 64 characters will be sent for each field read. (Codabar Stop
Character follows Codabar Check Characters (if sent).)
5. Symbology (0 or 2)
4. Field Delimiter (0 or 1)
3. Header Message (0 to 32)
2. Source Identifier (0 to 4)
1. Start Character (0 or 1)
8. Field Delimiter (0 or 1)
12. Transmission
Check (0 to 2)
In messages containing multiple bar code data strings, each string
will be separated by a single field delimiter. A double delimiter
follows the final string.
Below are some sample host messages to help you configure your
decoder. The examples show data transmitted by the decoder. The
configuration parameters for the message were set up as follows: