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Using the Bar Code ID feature and the Preamble or Postamble, you can trim data selec tively, trimming characters onl y on the
bar code type specified. To use selective trimming, enter:
~bx
where b is the Bar Code ID character (see the DataBar/RSS-14 /Other Bar Codes Setup parameter) and x is the number of
characters to trim from the front of the d ata. For example, ~b2~c1 says “trim 2 characters from Code 39 data and 1 character
from UPC-A data”. Remember that the Preamble trims leading data and the Postamble trims trailing data.
The Preamble and Postamble can also be used to create “line feeds” on the TriCoder display before the data is displayed. To
enter “line feeds” before or after your data enter:
}x
where x is 1-3, depending on how may lines you want to scroll. For example, it you wanted skip 3 lines, you would enter }3.
Lastly, the Preamble and P ostamble can be used to check a minimum and maximum character length for data entered in NON
PORTABLE mode. In portable data collection, min and max character length s are set using the Max Data Len and the Min Data
Len in the programming statements. To check for length in the Preamble or Postamble, enter:
|nnmm
where | is AS CII 124, nn is the two-digit minimum and mm is the two-digit maximum. |0210 would check for a minimum of 2
characters and a maximum of 10.
The Characters setting allows the TriCoder to output chosen ASCII characters in place of the actual characters entered. For example,
if you scanned the number 1 (hex 31) and wanted the TriCoder to output hex 92 instead, you would enter 3192 for the Characters
parameter. This would re-assign the output characters, with the TriCoder outputti ng hex 92 every time it sees h ex 31. To re-assign
characters:
o Key in 3 at the OTHER SETTINGS MENU for Characters
o Key up to seven 4-digit pairings where the first 2 digits represent the hex number to rep lace and the second 2 digits represent
the hex number to insert. You can have up to seven character re-assignments.
o Press ENTER when done to store the settings
o You can eliminate the output of a character by using FF as the hex number to insert. For example, if you wanted to eliminate
all $, following the above instructions, enter 24FF.
The EOF String setting allows you to choose up to 8 characters to be transmitted at the end of a T riCoder file upload. It is typically
used to signal to the receiving host program that the TriCoder is done uploading its data and has transferred its last piece of data. The
characters chosen are often characters not available on the TriCoder keypad; they are s canned from the FULL ASCII MENU. To
program an EOF String:
1. Press 4 at the OTHER SETTINGS Menu for EOF String
2. Key or Scan up to 8 characters from the FULL ASCII MENU
3. Press the ENTER Key to store your settings
4. Press 0 when you are Done to Exit the OTHER SETTINGS Menu
If you do not progra m an EOF String, the TriCoder sends a Ctrl Z (ASCII 26). Undisplayable characters are displayed on the
TriCoder as ?. To view the ASCII equivalent (so you know what characters ar e there) press the key while in the EOF String
parameter.