6-14
1. Scan
the
Preamble
or
Postamble
bar code or select
Preamble
or
Postamble
from the keypad menu.
2. Scan the desired characters (up to 15) from the FULL ASCII Menu.
3. Scan
the
SET
bar code, or if using the keypad, press
ENTER
.
4. To clear the
Preamble
or
Postamble
and return to the default
(no Preambles or Postambles defined), scan
CLEAR
at step
#2, then continue with your setup.
•
You can use the
Preamble
or
Postamble
to trim characters from
the data you are entering into the TriCoder in NON PORTABLE
mode.
The Upload Prefix and Suffix is used to trim data in
portable mode (data collection).
You can trim from 1-15
characters from the data by creating a preamble or postamble of:
~
x
where
~
is ASCII 126 and
x
is a single hex digit 1-F
(corresponding to 1-15). Data that is shorter than the trim amount
are transmitted without trimming.
Preambles
trim data from the
front;
Postambles
trim characters from the end.
Here are some examples, with and without trimming included:
Data Scanned
Preamble Value
Data Transmitted
123 XYZ
XYZ123
12345678 ~3XYZ
XYZ45678
12345678 ~9
12345678
12345678901 ~A 1
123456 ~5
6
Preamble affects leading (high order) characters
Data Scanned
Postamble Value
Data Transmitted
123 XYZ
123XYZ
12345678 ~3XYZ
12345XYZ
12345678 ~9
12345678
12345678901 ~A 1
123456 ~5
1
Postamble affects trailing (low order) characters
•
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
Code 128 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
