Tally Dascom 7106Series Programmer's Manual page 118

Bar code W1F / W1f:
This is 2-dimentional and variable length bar code. Variable length bar codes can be
generated by specifying their bar code type.
W1F :Data amount should be set by 4-digit bytes
W1f :Data amount is automatically set.
The input data is comprised of 5 elements.
4 digits--
1 digit--
3 digits--
Variable length-- Data character string
In the case of WIF specification, the number of characters will be
those obtained by subtracting the total of 4 bytes for ECI function
and error correction designation from the number of bytes initially
set.
Bar code ESC enhancing + M:
This is a bar code comprised of only numeric numbers and the number of digit has
variable length. The standard ratio is 5:2. When using this bar code, the bar code
type should be specified as [ESC] and add "M" at the head of the data part.
AZTEC
Amount of data to be used when W1F is specified.
Bytes following this value should be specified.
(Including 4 bytes for ECI and EC setting.)
When W1f is specified, the field is blank.
ECI function
0:Invalid
1:Valid
EC setting
Error correction and specification of amount of printable data
(Setting range: 000 – 300)
Set value Error correction ratio
000 : 23%
001 – 099 : % of specified value
100 – 104 :Compact 1 to 4 layers
201 – 232 :Full size 1 to 32 layers
300 :Decimal numbers 0 to 255 should be
specified.
(AZTEC code of 1-byte data is generated.)
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