Rockwell Automation 2755 AtomScan Bar Code Reader - Manual (Page 63)

5–18 Configuring Your Reader
Publication 2755-6.9
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Check Digit Output. When enabled, the check digit character is
sent along with the label data. When disabled, label data is sent
without the check digit.
I 2 of 5
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Status. Because I 2 of 5 is a continuous code, it is prone to
substitution errors. Therefore, a code length must be defined and
a bar code label containing an even number of digits must be
used. It is also recommended that a Modulus 10 check digit be
used to ensure the best possible data integrity.
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Check Digit. I 2 of 5 uses a Modulus 10 check digit.
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Check Digit Output. When enabled, the check digit character is
sent along with the label data. When disabled, label data is sent
without the check digit.
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Code Length #1. With I 2 of 5, two code lengths can be defined.
When using only one label length in an application, set Code
Length #2 to 0 to ensure data integrity. If a check digit is used, it
must be included in the code length count.
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Code Length #2. If using a second label, you may also specify a
zero or any even code length from 2 to 30. If you are not using a
second label, set Code Length #2 to 0 to ensure data integrity.
UPC
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Status. When enabled, the reader will read UPC version A and
UPC version E only.
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EAN. When EAN is enabled, the reader will read UPC version
A, UPC version E, EAN 13, and EAN 8. It will also append a
leading zero to UPC version A label information and transmit 13
digits. If you do not want to transmit 13 digits when reading
UPC version A labels, disable EAN.
Note: UPC must be enabled for EAN to take effect.
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Supplementals. Allows the reader to read supplemental bar code
data that has been appended to the standard UPC or EAN codes.
When set to Required, the reader treats the supplemental data and
the bar code label as a single label. Also, supplemental data must
be found or a no read will result. When set to Enabled, the reader
treats the supplemental data and the bar code label as separate
labels.
Note: If Supplementals is set to Enabled, Number of Labels must
be set to two (for each label used) and Triggering Mode must not
be set to Continuous Read, 1 Output. For example, if you are
using one (UPC) label and Supplementals is Enabled, set Number
of Labels to 2 (but if you are using two labels under the same
conditions, set Number of Labels to 4).
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Separator. Allows you to insert a character between the standard
UPC or EAN code and the supplemental code.