G-27
Appendices
MicroHAWK V320-F / V330-F / V420-F / V430-F Barcode Reader User Manual
G-16 PDF417
G
G-16-1 Fixed Symbol Length Status (PDF417)
G-16 PDF417
•Note: Sending <a1> will cause PDF417 data to be prefaced with information consisting of error correction level (ECC
Level n), number of rows (n Rows), number of columns (n Columns), number of informative code words (n Info Code
Words) and the number of data characters (n Data Characters). This feature can be disabled by re-sending <a1>.
• Note: Fixed Symbol Length Status must be enabled for Fixed Symbol Length to take effect.
Usage:
Used in applications where a large amount of information (over 32 characters
)
needs to be encoded within a symbol, typically where the symbol is transported
from one facility to another. For example, an automobile assembly line
might use a single symbol with multiple fields of information that will be
read at several stations along the way, without reference to a database.
Definition:
A two-dimensional, multi-row (3 to 90), continuous, variable length symbology
that has high data capacity for storing up to 2,700 numeric characters,
1,800 printable ASCII characters, or 1,100 binary characters per symbol.
Each symbol character consists of 4 bars and 4 spaces in a 17-module
structure.
Serial Cmd: <K476,status,[unused],fixed symbol length status,fixed symbol length>
Default: Enabled
Options: 0 = Disabled 1 = Enabled
G-16-1 Fixed Symbol Length Status (PDF417)
Serial Cmd: <K476,status,[unused],fixed symbol length status,fixed symbol length>
Default: Disabled
Options: 0 = Disabled 1 = Enabled
G-16-2 Fixed Symbol Length (PDF417)
Usage: Used to increase data integrity by ensuring that only one symbol length
will be accepted.
Definition:
When enabled, the PDF symbol must contain the same number of characters
as the symbol length setting before it can be considered a good read. The
reader will ignore any symbol not having the specified length.
Serial Cmd: <K476,status,[unused],fixed symbol length status,fixed symbol length>
Default: 10
Options: 1 to 2710
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