Metrologic Instruments IS1000 manual Ucc/Ean, Start FNC1 ID Data Stop

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.

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

!Note:

In Keyboard-Wedge mode, the character GS is transmitted as quotes " (22 hexa).

The character FNC1 can be transmitted or not using these codes:

FNC1 NOT TRANSMITTED *

FNC1 TRANSMITTED

START OF CONFIGURATION	END OF CONFIGURATION
IS1000 – Configuration Guide	37