Metrologic Instruments IS1000 Manuel D’Utilisation
IS1000 – Configuration Guide
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START OF CONFIGURATION
END OF CONFIGURATION
3.7. UCC/EAN
128
This symbology is fully compatible with Code 128. The main difference between EAN 128
and conventional Code 128 is that EAN 128 codes always contain a reserved non-data
character, function 1 (FNC1), as the first character after the start character. This FNC1
character acts also as a separator of fields in the code.
and conventional Code 128 is that EAN 128 codes always contain a reserved non-data
character, function 1 (FNC1), as the first character after the start character. This FNC1
character acts also as a separator of fields in the code.
Example of code UCC/EAN 128 structure:
START
FNC1
ID – DATA 1
FNC1
ID – DATA 2
CK
STOP
START : Start character from set A, B or C
FNC1 : Separator character
ID
: Identifier of type of data
CK
: Check digit modulo 103
STOP : Stop character
The decoder detects an UCC/EAN 128 code when FNC1 is the leading character.
The transmission of the data string will be performed as follow:
] C1
ID – DATA 1
GS
ID – DATA 2
] C1
: Three characters representing the identifier of the code UCC/EAN 128
GS
: ASCII character (1D hexa) acting as a separator
In Keyboard-Wedge mode, the character GS is transmitted as quotes " (22 hexa).
The character FNC1 can be transmitted or not using these codes:
!
Note:
FNC1 NOT TRANSMITTED *
FNC1 TRANSMITTED