30
b
Com mand - 2D Bar Code - PDF417 Specific Op tions
The fol lowing pa rameters may be omit ted and de -
fault values will automatically be in serted. Each pa -
rameter value (data string) must be pro ceeded by its
as so ci ated com mand pre fix char ac ter.
p
6
(s)
= sets er ror cor rection level
Er ror Cor rec tion codewords per sym bol
Values:
s1
-
s8
If level is not spec ified, a level will au tomati-
cally be as signed as per the fol lowing ta ble:
EC level
EC Codewords
Auto Se lect Level
0
2
—
1
4
0-31
2
8
32-63
3
16
64-127
4
32
128-255
5
64
256-511
6
128
512-928
7
256
—
8
512
—
p
7
(c)
= se lects data compaction (com pres-
sion) method
Val ues:
0
or
1
, de fault is
0
c0
= Auto-en coding
The printer will switch be tween the three
compaction modes as needed to cre ate
the small est pos sible sym bol for the
given data.
c1
= Bi nary mode
The printer will en code the symbol in
byte com pac tion mode.
PDF417 uses an in termediate data type called a
“codeword” to store the char acters in the sym -
bol. Each code word typ ically consumes a
fixed-size por tion of the to tal sym bol. More
characters in serted into a codeword results in
fewer codewords needed to create a sym bol.
This re sults in a smaller sym bol. To provide ef fi-
cient data compaction, PDF-417 sup ports three
types of codewords: text, nu meric and bi nary.
3-30
980352-001 Rev.D
Summary of Contents for LK-B10
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