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Bar Codes5–122
The increment amount is defined by the numeric value of the STEPMASK
data. For example, a STEPMASK value of 1 increments the STARTDATA
by 1; a STEPMASK value of 2 increments the STARTDATA by 2.
The maximum number of characters allowed in the STARTDATA is defined
by the number of characters in the STEPMASK field and depends on the
specific type of bar code; the STARTDATA field cannot contain more
characters than used in the STEPMASK field and can only contain the
number and type of characters allowed by the bar code.
Linked and unlinked masking of subfields within the STARTDATA is
defined by using the L value in the STEPMASK field. L indicates linked but
nonincrementing data in the corresponding position of the STARTDATA
field. Any alphanumeric character other than L in the STEPMASK field
indicates a nonincrementing, non–linked STARTDATA subfield.
The following examples illustrate incrementing of bar code data fields. All
cases in the examples use a repeat count parameter value of 1 and a reset
count parameter value of 0. Incremental bar code data is generated
identically to incremental alphanumeric data except the IGP/PGL does not
add leading spaces to bar code data.
NOTE: In the following bar code examples, the value of the data is
shown automatically incrementing. In practical applications, the
bar code itself would print corresponding to the incremented
data as shown in the Auto Increment Fields Example on page
6–14 in the “Commands” chapter.