Datamax A-4310 Programmer's Manual page 202

K: Plessey
Valid Characters: 0-9
Length: 1 to 14 digits
Valid bar widths: The expected ratio of wide to narrow bars can range from 2:1 to 3:1.
If a + character is the last data character, an additional MSI checksum will be added to the bar code in
place of the + character.
The following example prints a Plessey bar code with a wide to narrow bar ratio of 3:1:
<STX>L
D11<CR>
1K000000015010001234567890<CR>
121100000000100Barcode K<CR>
E
L: Interleaved 2 of 5 with a modulo 10 checksum and shipping bearer bars.
Valid Characters: 0-9
Variable Length: For the bearer bars to be printed, 13 characters are required.
Valid bar widths: The expected ratio of wide to narrow bars can range from 2:1 to 3:1.
The following example prints an Interleaved 2 of 5 bar code with a modulo 10 checksum with a wide
to narrow bar ratio of 3:1 and bearer bars:
<STX>L
D11<CR>
1L00000001501000123456789012<CR>
121100000000100Barcode L<CR>
E
186
Appendix G – Barcode Details
Class Series Programmer's Manual