Datamax E4203 manual W1c / W1C DataMatrix

Appendix G

W1c / W1C: DataMatrix

Valid Characters: Any eight-bit byte data

Variable Length (W1c): This is a two-dimensional matrix symbology comprised of square modules arranged within a perimeter finder pattern. Two types are ECC 000 – 140 and ECC 200.

Specified Length (W1C): Same as the variable length, however, with a Byte Count Specifier values 0x00 through 0xFF can be used within the data string without conflicting with the DPL format record terminators.

ECC 000 – 140 symbols: These square symbols can be any odd sizes from 9x9 to 49x49, which may be specified in the fields kkk and lll. If the symbol is specified with even numbers of rows or columns, the next largest odd value will be used. Input values greater than 49 or less than 9 will cause the symbol to be automatically sized for the input character stream. The record structure is expanded for visual clarity.

Record Structure: a W1 b c d eee ffff gggg [hhhh] iii j kkk lll mm…m

Where:

Field	Valid Inputs			Meaning
a	1,2,3, and 4	Rotation
W1	W1	Fixed value, extended barcode set
b	c and C	Lowercase selects the DataMatrix bar code, variable length
		Uppercase selects the Datamatrix barcode with a Byte Count Specifier
c	1 – 9 and A – O	Module size horizontal multiplier
d	1 – 9 and A – O	Module size vertical multiplier
eee	000 – 999	No effect; must be numeric
ffff	0000 – 9999	Label position, row
gggg	0000 – 9999	Label position, column (see Appendix J)
[hhhh]	0000 to 9999	Optional string length specifier. Field termination is set by this byte
		count. This decimal value includes all of the data following this byte
		count field, but does not include itself.
iii	000, 050, 080, 100, 140	3-digit convolutional error correction level.
		If any number other than one of these options is entered then the nearest
		lesser value from the valid entries is used (e.g., selecting a value of 099
		will cause an actual ECC value of 080 to be used).
j	0 – 6	Format identification, where:
		0	- Automatically selects an encodation scheme based on the
				characters to be encoded.
		1	-	Numeric data.
		2	-	Upper case alphabetic.
		3	- Upper case alphanumeric and punctuation characters (period,
				comma, hyphen, and slash).
		4	-	Upper case alphanumeric.
		5	- ASCII, the full ASCII character set.
		6	-	Any 8-bit byte.
		If a format identifier is selected which will not encode the input
		character stream then the barcode symbol will not be printed. It is
		recommended that the auto-encodation format identification be used
		since it will select the best possible encoding scheme for the input
		stream.

116 E-Class DPL Programmer’s Manual