User`s manual

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RS-T80 Programming Manual
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Appendix
Appendix A: Code128 Bar Code
A.1 Description of the CODE128 Bar Code
In CODE128 bar code system, it is possible to represent 128 ASCII characters and
2-digit numerals using one bar code character that is defined by combining one of the
103 bar code characters and 3 code sets. Each code set is used for representing the
following characters:
· Code set A: ASCII characters 00H to 5FH
· Code set B: ASCII characters 20H to 7FH
· Code set C: 2-digit numeral characters using one character (100 numerals from 00 to
99)
The following special characters are also available in CODE128:
· SHIFT characters
In code set A, the character just after SHIFT is processed as a character for code set
B. In code set B, the character just after SHIFT is processed as a character for code
set A.
SHIFT characters cannot be used in code set C.
· Code set selection character (CODE A, CODE B, CODE C).
This character switches the following code set to code set A, B, or C.
· Function character (FNC1, FNC2, FNC3, FNC4)
The usage of function characters depends on the application software. In code set C,
only FNC1 is available.