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2-30
Check Digit = Constant 2 -
The parameters displayed in the Custom Check Digit Definition window
must be defined.
The following section contains an explanation of each field:
• Constant 2—A constant value in the range 0 through 99.
• IA Digits—The digits comprising the Image Address. The Image
Address may contain a fixed field as many as three level fields. The
Image Address cannot exceed 11 data characters when accompanied
by a check digit; the check digit occupies one character position.
• Attributes—These are position weights for digits in the Image Address.
A zero-value attribute causes the associated Image Address digit to be
excluded from the check digit calculation. Each digit in the Image
Address is multiplied by its attribute and summed. For example, if the
Image Address is 1202.14.342.12 and you wish to calculate a check
digit that excludes the fixed field (1202), the attributes (using Table 1)
would be 00001546231.
Table 1: Default Image Address Attributes
C10
c9
c8
c7
4
6
2
3
NOTE: The "c" in Table 1 refers to the character position.
Custom Check Digit Definition
Custom Check Digit Formula
[Sum of IA Digits * Attributes] + Constant 1
Divisor
Parameter
Current Value
Attributes
46231546231
Constant 1
00
Constant 2
00
Divisor
07
Left/Right
Right
LUT Status
No
Lookup Table
abcdefghijk
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c6
c5
c4
1
5
4
c3
c2
c1
c0
6
2
3
1
A-61097
May 1997
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