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Chapter 7: Programming 7-69
EAN/JAN/UPC Multi-Symbol Scanning Parameters
The optional Multi-Symbol programming feature permits you to scan
bar code labels containing two or three EAN-13, JAN-13, or UPC-A
symbols.
Label Construction
A multi-symbol label must consist of any combination of two or three
EAN-13, JAN-13, or UPC-A symbols, each with different flag digits.
Flag digits are the first two digits of the symbol on EAN-13/JAN-13
symbols. Flag digits for UPC-A symbols always have a zero (0) for the
first digit with the number system character being the second digit.
There is NO restriction on which flag digits may be used except that
any flag digits used in a 3-symbol combination cannot be used in any
of the 2-symbol combinations, and any flag digits used in a 2-symbol
combination cannot be used in any of the 3-symbol combinations. A
mixture of 2-symbol and 3-symbol combinations is allowed. A total of
five multi-symbol combinations can be programmed.
Single Label Restriction
A single-symbol with the same flag digits as programmed for any 2-
symbol or 3-symbol labels cannot be scanned as a single-symbol label.
Transmitting Label Data
Transmission of a multi-symbol label consists of a separate message for
each of the symbols. The symbol with the lower numbered flag digits
is transmitted first. For example, for the 3-symbol combination of JAN-
13 flag 21, JAN-13 flag 29, and JAN-13 flag 96, the symbol with flag
digits 21 is transmitted first, the symbol with flag digits 29 is
transmitted second, and the symbol with flag digits 96 is transmitted
third.