Interleaved 2 Of 5 - PSC PowerScan Programming Manual

Interleaved 2 of 5

The Interleaved 2 of 5 symbology has the following programmable
features:
Check Digit — calculate the Check Digit to verify that the
Check Digit contained in the bar code label is correct. If you
enable this feature, your bar codes must contain a Check
Digit.
If the Check Digit is not calculated, the digit will be sent
regardless of settings for transmit or don't transmit. For
example, if you choose to Transmit Check Digit, but not
calculate, the scanner sends the Check Digit encoded in the
bar code without verifying its accuracy.
Label Format — provides the selection between fixed or
variable length labels. If your application has labels with
specific fixed lengths, we recommend selecting fixed lengths
to improve read rate and avoid stray reads.
You can select any valid number of characters for reading specific
length labels only. Read the following details for specific Inter-
leaved 2 of 5 limits.
Interleaved 2 of 5 Minimum Label Length — set the minimum
label length required for I 2/5 labels (not including the check
character). This feature is provided to ignore small label segments,
reducing the possibility that a portion of a good label is incorrectly
seen as an entire label. This setting can be any even number of
characters between 02 and 50
Variable Length — If you select variable length, the scanner will
recognize labels with an even number of characters between
the minimum length (set above) and 50
Fixed Length — If you select fixed length, there are three labels
for programming your scanner to read either one or two
fixed lengths. The labels are:
• Set First Fixed Length — Use this label to instruct the scanner that
the next two programming labels you scan will define the first fixed
label length. This setting can be any even number of characters
between 02 and 50
1 For this symbology, the scanner will decode up to 50 characters, but the actual length read
will vary depending upon interface type, and bar code physical size and quality.
66
Interleaved 2 of 5 Label Lengths
1
1
characters.
.
1
characters.
PowerScan ™ Programming Guide