How to encode & scan extended characters
Solution(s):
It is possible to scan and encode extended characters in barcodes
by doing the following:
- Use a 2D Barcode product. Linear barcode types such as
Code 128 and Code 39 cannot encode characters over ASCII 128. 2D
barcode types such as PDF417, Data Matrix and MaxiCode have the
ability to encode actual bytes of data.
- Encode the data using Binary or Byte Compaction. This
option encodes ASCII 0 to 255 of the
ASCII character
set.
- Scan the data via the serial interface option (data bits
have to be 8N) on the scanner. Normally, keyboard wedges and USB
scanners do not support extended characters above ASCII 128, and
they can only scan characters that are actually on the keyboard.
Contact the
scanner
vendor for more information on how to do this, as some internal
settings may have to be modified on the scanner itself.
When using PDF417 barcodes in text compaction mode, only the
following can be encoded ASCII 9 (tab), 10 (line feed), 13 (carriage
return) and ASCII 32 to 126. However, when PDF417 is used in byte or
binary compaction mode (which is the default), ASCII 0 to 255 is encoded.
Related Documents:
|
