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RASCAL Programmer’s Manual
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2-4 TC9450PM Rev. C 8/11/98
NOTE:Do not use an MSI bar code with an incrementing text field. This
combination may cause the check digit on the MSI bar code to be incorrect.
Note the characteristics items about bar codes:
• Codabar uses “A” as the start and stop characters, unless you include
another start/stop character in the print batch data.
• Bar codes can accept 200 characters for their input data.
• I 2 of 5 bar codes pad the field data to the left with a zero when you
give it an odd number of data characters.
• The printer calculates check digits and adds them to the bar code data
for all bar codes with system check digits.
• If you assign too few characters to bar codes that require a certain
number of characters, an error occurs. If you assign too many
characters, the printer truncates the data.
Code 128 Bar Code Fields
Code 128 bar codes use four characters to perform special functions. To use the
function characters in a bar code, imbed the corresponding sequence (preceded by a
tilde (~)) in the bar code’s data (you specify the data with the ^P or ^R command).
For example, suppose your data is 1234. You might enter 123~2034 to use function
4.
Function 1 Char. Sets: A, B, C Enter: ~200
If ~200 occurs in position 1 or 2 of the data, the scanner treats the data as fitting the
UCC standard. If ~200 occurs in any other position, the scanner treats it is a field
separator.
Function 2 Char. Sets: A, B Enter: ~201
If the scanner reads ~201 anywhere in the data, it stores the data temporarily and
prefixes it to the data in the next Code 128 bar code it reads.
Function 3 Char. Sets: A, B Enter: ~202
If the scanner reads ~202 anywhere in the data, it treats the entire bar code as
instructions to program the scanner.