Appendix; Appendix A: Code128 Bar Code - SNBC BTP-R180II 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, the one hundred
numbers from 00 to 99 and some special characters with three code sets: A, B and C. 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: 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.
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