Appendix G
W1z / W1Z: MicroPDF417
Valid Characters: All ASCII characters, depending on the selected options.
Variable Length: This is a 2 dimensional barcode capable of holding large amounts of data in a small area. It provides a high level of redundancy and error checking.
Specified Length: With a string
Record Structure: a W1 b c d eee ffff gggg [hhhh] i j k l 0 mm…m Where:
Field | Valid Inputs | Meaning |
a | 1,2,3, and 4 | Rotation |
W1 | W1 | Fixed value, extended barcode set |
b | z and Z | Lowercase selects the MicroPDF417 bar code, variable length |
|
| Uppercase selects the MicroPDF417 barcode with a Byte Count |
|
| Specifier. |
c | 0 to 9 and A to O | Module size horizontal multiplier; 0 = default size. |
d | 0 to 9 and A to O | Module size vertical multiplier; 0 = default size. |
eee | 000 | No Effect |
ffff | 0000 to 9999 | Label position, row |
gggg | 0000 to 9999 | Label position, column |
[hhhh] | 0000 to 9999 | Optional string length specifier. Field termination is set by this byte |
|
| count. This decimal value includes all of the data following this byte |
|
| count field, but does not include itself. |
i | 1 to 4 | Number of columns |
j | 0 to 9 and A | Row / Error Correction index |
k | 0, 1 | Byte Compaction Mode (1) |
l | 0, 1 | Macro Character Substitution Disable (1) |
0 | 0 | Fixed ASCII digit 0. Reserved for future use. |
mm…m | Data to be encoded | |
| termination character |
|
The number of columns (i) and the row / error correction index (j) combine to form a row/column/error correction selection index (ij) which determines other characteristics of the symbol as shown in the following table.
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