Honeywell 5010, Руководство пользователя

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9 - 10
Example:
To program a modulo 11 check character, you would enter the
following 11 characters in order:
0123456789X
Also enter the OCR template:
dddddddc
Enable the OCR-A font, then scan the following string:
6512351X
The imager performs the following check character computation:
(6 + 5 + 1 + 2 +3 + 5 + 1 + X) modulo 11 = 0
Since the result is zero, the message is considered to be valid, so the reader
outputs the message: 6512351
Programming a User-Defined Check Character
1. Scan the Enter OCR Check Character bar code, below.
2. Enter the characters in order. For each character, look up the
corresponding hex value from the ASCII Conversion Chart (Code Page
1252) , page A-3. Use the Programming Chart on the inside the back cover
of this manual to scan the two symbols for each hex value.
3. Scan the Save bar code on the inside back cover.
Example: To program the modulo 11 check character from example #8 on
page 9-10 , enable the OCR-A font. Scan the Enter OCR Check
Character bar code on page 9-10 , then scan the following hex values
in order:
3031323334353637383958
After you enter all the desired hex values, scan the Save bar code on the
inside back cover of this manual.
Weighting Options
By default, the check character computation is unweighted. It is possible to use
one of two weighted modulo 10 schemes. Weighting is often used to detect if
two neighboring characters are transposed, a common error when an operator
keys in data.
Enter OCR Check Character