Datamatrix

Data Matrix generator

Data Matrix is ​​a two-dimensional matrix barcode consisting of black and white “cells” or modules arranged in either a square or rectangular pattern. The encoded information can be text or raw data. The size of the data is from a few bytes up to 2 kilobytes, the length depends on the information to be encoded.

It is possible to insert error correction codes to increase the symbol strength: symbols can still be read even in case of partial damage.

Note: This type of symbology does not display visually readable text.

Data Matrix Barcode

Data Matrix Barcode

Creation of a Data Matrix barcode

Data Matrix symbols can encode text in several different ways. Use the Encoding combo box of the Labeljoy barcode software to define the most appropriate encoding algorithm for the text you want to encode:

  • (Mixed): default setting. Enables encoding of the data using a combination of all the following encoding modes based on the type of data found. Normally this setting produces the best results.
  • Ascii: enables encoding of all of the 256 characters of the standard ASCII table. Produces the best results on numeric characters and ASCII values between 0 and 127.
  • C40: enables encoding of numbers, letters, and a few special characters. Best for alphanumeric codes with mostly upper case text.
  • Text: enables encoding of numbers, letters, and a few special characters. Best for alphanumeric codes with mostly lower case text.
  • X12: enables encoding of the characters included in the ANSI X12 set.
  • Edifact: enables encoding of ASCII characters ranging between 32 and 94. Included for backward compatibility, it is considered obsolete.
  • Base 256: specific encoding for byte data ranging between 0 and 255. By using this encoding algorithm it is possible to encode any value between 0x00 and 0xFF (decimal 0 ~ 255). In order to use this encoding you need to enter a string containing 2-digit hexadecimal values separated by a space: I.e.: 32 FA 56 E8 12 … etc.

Datamatrix codes

Data Matrix encoding: https://www.labeljoy.com/free-label-software/

Data Matrix ASCII encoding

With ASCII encoding

Data Matrix with Text encoding

With Text encoding

The Symbol size combo box enables you to enter the minimum symbol dimension. The Data Matrix architecture organizes data in a series of square or rectangular matrices, combined to represent the encoded data. The number of required matrices depends on the amount of data encoded.
Normally, the symbol is generated with the least possible number of matrices needed to represent the encoded data. In some cases, however, it may be desirable to increase the minimum number of matrices drawn to ensure that all printed symbols are the same size, regardless of the amount of encoded data. For example, if you connect a Data Matrix barcode to the address field of a data source, all the icons, regardless of the length of each address, may need to have the same size. In such a scenario, you can define a minimum icon size for all generated barcodes.

Data Matrix encoding:12345

Datamatrix auto symbol size

With (Auto) symbol size

Datamatrix minimum symbol size

With 16×48 minimum symbol size

Text concatenation:
When a Data Matrix barcode element is generated by concatenating fields or counters, the following rules apply:

  • Text contents must comply with the selected encoding algorithm.
  • Text length must not exceed maximum capacity.

If a value is found that does not comply with the above rules, the barcode will not be displayed.

Limitations:
Data Matrix symbols generated with Labeljoy do not support: Extended Channel Interpretation (ECI), FNC1 mode and Structure Append mode.