TriCoder Portable Bar Code Reader, Руководство пользователя

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5. Trimming data from a field
The Upload Prefix can be used to trim 1-15 leading characters from the
specified statements data. Trimming can happen in 3 ways:
~x -where x is a single hex digit corresponding to the number of
characters you want to remove from the data. Valid entries are 1 -
F (corresponding to 1-15). Trimming characters using the ~ waits
to trim the data until it is uploaded.
UPLOAD PREFIX 01
~A
The example above would trim 10 characters from the front of the
data for statement #01. The data is not trimmed until it is uploaded;
the TriCoder displays and stores the data in its original form. If the
data in statement #01 was less than 10 characters, no trimming
would occur and the data would be transmitted in its entirety.
{x -where x is a single hex digit corresponding to the number of
characters you want to remove from the data. As above, valid
entries are 1-F. Trimming characters using the { character trims
the data BEFORE displaying it on the TriCoder screen and before
checking data lengths and data ID’s.
UPLOAD PREFIX 01
{4
The example above would trim 4 characters from the front of the
data in statement #01. The trimming would occur immediately,
displaying the trimmed data on the TriCoder screen. If the data is
less than 4 characters, no trimming would occur and the data
would display in its entirety. Because the data is trimmed
BEFORE it is checked for its data length and data ID’s, remember
to take those fields into consideration when trimming your data.
{zx -where z is the bar code ID character and x is a single hex digit
corresponding to the number of characters you want to remove
from the data. As above, valid entries are 1-F. This type of
trimming is called “selective” trimming. It only trims characters
from the specified bar code type if it is scanned. See Chapter 6;
TriCoder Setup - Code 128 Parameters for the correct bar code
ID characters for each bar code type.
UPLOAD PREFIX 01
{b3
The example above would trim 3 characters off of a Code 39 bar
code scanned for statement #01. If you scanned a UPC bar code
instead, no trimming would occur.