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Option 51 (PDF417 Security/Truncation)–––––––––––––––––––––––
You can define a security level and choose whether or not to
truncate a PDF417 bar code. Higher security levels add data
to a bar code, improving scan reliability. Some damaged bar
codes may still be scannable if the security level is high
enough. You can use this option to create standard PDF417
bar codes or use the truncated option to create a narrower bar
code. This option can appear only once per PDF417 field, in
any order, following the bar code field.
As the security level is increased, so is the size of your
PDF417 bar code. For each level increased, the bar code will
double in size.
Syntax R,51,security,stand/default p
R1. R Indicates option header.
R2. 51 Indicates Option
51
.
R3. security Security level ranges from
0-8
(
0
is the default).
Higher security levels add data to a bar code, improving
scan reliability. Some damaged bar codes may still be
scannable if the security level is high enough.
R4. stand/def Truncation selector. Valid values:
S
(default) a standard PDF417 bar code
T
truncated
Example R,51,2,S p
Defines a security level of 2 for a standard PDF417 bar code.
MPCLII Packet Reference Manual
5-10