46
Using the Bar Code ID feature and the
Preamble
or
Postamble
, you can trim data selectively, trimming characters only 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 data. 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
Postamble
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 lengths 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 ASCII 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.
Characters
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 outputting
hex 92
every time it sees
hex 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 replace 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
.
EOF String
The
EOF String
setting allows you to choose up to 8 characters to be transmitted at the end of a TriCoder 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 scanned 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 program 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 are there) press the
key while in the
EOF String
parameter.
