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3 - 14 Infinium LiHa and Infinium RoMa Operating Manual - Document # 1000000110155 v00
3 - Technical Data
System Modules
Barcode Symbology Types
The PosID recognizes a number of different barcode types. Not all types provide
for sufficient reading security.
For that reason, the following considerations must be taken into account when
defining the barcode types to be used for container identification:
Tab. 3-14 Barcode symbology types
Symbology Characteristics Recommendation
Code 128 Variable length, high density, alphanu-
meric symbology.
Three different character sets can encode
• upper case and ASCII control charac-
ters,
• upper and lower case characters,
• or numeric digit pairs.
Employs a check digit for data security.
Recommended
a)
. Widely
used and good reading
security.
Code 39 Standard
b)
Variable length, alphanumeric symbology.
The character set can encode upper case,
numeric, and the characters -.*$/+%.
The asterisk (*) is reserved as start / stop
character.
Allows for a (modulo 43) check digit. Use only with check digit
(modulo 43).
Code 39 Full ASCII
b)
Same as code 39 standard, but can
encode the complete 128 ASCII character
set (including asterisk). Use only with check digit
(modulo 43).
Codabar
b)
Variable length symbology.
The character set is restricted to numerics
and the characters -$:/.+ABCD, whereas
A, B, C and D are used as start and stop
characters.
Allows for a (modulo 16) check digit. Not recommended (reading
security).
May only be used with
defined code length and
check digit (modulo 16).
Interleaved 2 of 5
b)
Variable length, high density, numeric
symbology.
Pairs of digits can be encoded in an inter-
leaved manner (bars and spaces).
If partially scanned, there is the possi-
bility of a barcode being decoded as a
valid (but shorter) number.
Optionally allows for a (modulo 10) check
digit.
Do not use (reading secu-
rity insufficient).
May only be used with
defined code length and
check digit (modulo 10).
At least 6 characters are
necessary.
a) Also used for standard carrier ID barcodes
b) The application SW may restrict the use of barcode types.
See section “Permissible Barcode Types” below.