Datamax-O'Neil DPL Programmer’s Manual - Manual (Page 225)

Appendix G – Bar Code Details
217
preceding the FNC1 are Application Indicators assigned by AIM
International. The printer does not check AI validity.
When 0 is anywhere else in the data stream, a < G
S
> replaces it in
the bar code symbol, as with UCC/EAN 128 field separators.
n
– Is encoded as FLG(n), and is interpreted as signaling Extended Channel
Interpretation. When the value of n is from 1 to 6, it signals that the
following n digits comprise an extended channel identifier for use with ECI
compliant bar code scanners. An erroneous bar code symbol may result
from failing to follow n with n digits. Any 0 following
n and not within the n digits will be encoded as FLG(0). In the
context of a FLG(n), any backslash “\” (92
10
) will be interpreted by the
scanner as two backslashes “\\”.
Example 1: The variable length example encodes “AZTEC” with no ECI input, and 23%
error correction, and prints the bar code. A line of text is also printed.
L
D11
1W1f00000001501000000AZTEC
121100000000100Barcode W1f
E
Barcode W1f
Example 2: The specified length example includes a byte count field for all bytes that
follow until the end of the bar code data. The byte count is 17. The
symbology encodes “AZTECbarcode”, and prints the bar code. Notice
that a does not terminate the bar code format record. A line of text
is also printed.
L
D11
1W1F000000015010000170000AZTEC<0x0D>barcode
121100000000100Barcode W1F
E
Barcode W1F
Functions Not Supported
• Structured Append
• Reader Initialization Symbol Generation
• Module shaving