Opticon XPT 3125 Universal menubook - Manual (Page 73)

OPTICON Universal menu book
U66
3.3.11. Options for Code 128 and GS1-128
Code 128:
Code 128 is a variable length symbology with a
mandatory check digit and non printable start/
stop characters. The following characters are
supported:
• all 128 ASCII characters
• 4 non data function characters
• 3 start characters
• 4 code set selection characters
• 1 stop character
The check digit is calculated as the sum
modulo 103 of the start character and the
weighted values of the data and special
characters. For string format see figure 3.32.
Options for Code 128:
• enable concatenation
GS1-128:
In this mode the Code128 data is translated to
the GS1-128 format, formerly known as EAN-
128 or UCC-128. GS1-128 data starts with the
FNC1 character and separates 2 data fields
with the FNC1 character.
The first FNC1 character is translated to ]C1,
and the second FNC1 character is translated to
an ASCII GS (hex 1D) character. For string
format see figure 3.33.
Options for GS1-128:
• enable GS1-128 conversion
Enable GS1-128 only:
In this mode the decoded data characters are
translated to the GS1-128 format. If the data
does not comply with the GS1-128 format, then
the label is rejected.
Enable GS1-128 if possible:
In this mode the decoded data characters are
translated to the GS1-128 format. If the data
does not comply with the GS1-128 format, then
the label is transmitted as Code 128.
FNC2 Concatenation:
If a Code 128 bar code contains a leading
FNC2 character, the data is stored into the
reader's buffer. As soon as a Code 128 bar
code is read without a leading FNC2 character,
the data is appended to the reader's buffer and
the entire buffer is transmitted and cleared for
new data. In case a non Code 128 bar code is
read, the data in the non-Code 128 bar code is
transmitted and the buffer is cleared. The buffer
size is reader dependent.
Fig. 3.32. Options for Code 128 and GS1-128
data
(1 or more characters)
Code 128
Fig. 3.33. Options for Code 128 and GS1-128
GS1-128
]C1 data
(1 or more char.)
data
(1 or more char.)