PDF417
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.
A two-dimensional, multi-row (3 to 90), continuous, variable-length symbology that has high data capacity (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.
Note: Sending <a1> from ESP's Terminal 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>.