Datalogic Scanning QUICKSCAN QS6500BT - Manual (Page 79)

Data Editing Overview
Product Reference Guide 5-5
Preamble/Postamble
Similar to the Prefix/Suffix, up to 22 ASCII characters may be added as a
preamble (in a position before the bar code data) and/or as a postamble
(in a position following the bar code data) as indicated in
Figure 5-3 .
Figure 5-3. Preamble and Postamble Positions
Example: Setting a Postamble
In this example, we’ll set a postamble for all symbologies.
1. Determine which ASCII character(s) are to be added to scanned
bar code data. In this example, we’ll add the percent character
(‘%’) as a postamble.
2. Scan the START bar code.
3. Scan the SET POSTAMBLE CHARACTER(S) bar code.
4. Reference Appendix A, ASCII Conversion Chart , to find the hex value
assigned to the desired character. The corresponding hex number
for the ‘%’ character is 25. To enter this selection code, scan the ‘2’
and ‘5’ bar codes from
Appendix B, Alpha-Numeric Pad .
5. Scan the SET bar code to accept the digits scanned.
6. Scan the TRANSMIT POSTAMBLE bar code to allow transmis-
sion of the postamble.
7. Scan the END bar code to exit Programming Mode.
8. The resulting message string would appear as follows:
Scanned bar code data: 12345
Resulting message string output: 12345%
Prefix
00 - 22 Characters (ASCII)
Sufffix Symbology ID ID Preamble Postamble Bar Code Data Code Length
Insert Groups