1. RS6100 Product Reference Guide
  2. OCR Programming
  3. OCR Programming Parameters
  4. OCR Check Digit Multiplier
  • RS6100 Wearable Scanner Product Reference Guide
OCR Check Digit Multiplier
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OCR Check Digit Multiplier

Parameter #
700
 (SSI # F1h BCh)
This parameter sets OCR check digit multipliers for character positions.
For check digit validation, each character in scanned data has an assigned weight to use in calculating the check digit. The scanner OCR ships with the following weight equivalents:
0 = 0
A = 10
K = 20
U = 30
1 = 1
B = 11
L = 21
V = 31
2 = 2
C = 12
M = 22
W = 32
3 = 3
D = 13
N = 23
X = 33
4 = 4
E = 14
O = 24
Y = 34
5 = 5
F = 15
P = 25
Z = 35
6 = 6
G = 16
Q = 26
Space = 0
7 = 7
H = 17
R = 27
8 = 8
I = 18
S = 28
9 = 9
J = 19
T = 29
All other characters are equivalent to one (1).
You can define the multiplier string if it is different from the default.
123456789A
 (for ISBN, Product Add Right to Left. See OCR Check Digit Validation)
For example:
ISBN
0
2
0
1
1
8
3
9
9
4
Multiplier
10
9
8
7
6
5
4
3
2
1
Product
0
18
0
7
6
40
12
27
18
4
Product add
0+
18+
0+
7+
6+
40+
12+
27+
18+
4=
132
ISBN uses Modulus 11 for the check digit. In this case, 132 is divisible by 11, so it passes the check digit.
To set the check digit multiplier, scan OCR Check Digit Multiplier, and then scan numbers and letters to form the multiplier string before scanning End of Message from Alphanumeric Barcodes
OCR Check Digit Multiplier