This page provides some guideline about the GS1 barcodes and which one of our components can be used to generate them. 

GS1 Datamatrix

GS1 DataMatrix is a specific use of  Data Matrix ECC 200 used GS1 data elements like item identification, expiration date, etc.

In oder to create a GS1 compliant barcode the data to be encoded must meet this criteria:

•  the data to be encoded must start with a leading FNC1 character
• The GS1 Application Identifiers (AI) are used for all data
• only ascii characters are used.

How to achieve this using our Datamatrix component?

• use ~1 to encode the FNC1 in the first position
• use ~1 as field separator for variable length AI elements.
• use ascii encoding

For example, if you want to encode these two elements

1. Application identifier 10 (Batch or Lot number) and value ABCD1234
2. Application identifier 410 (Ship To - Deliver To) and value 9501101020917

you would use in our Java component this code:

		RDataMatrix rdatamatrix = new RDataMatrix();
		rdatamatrix.setSize(300, 300);
		rdatamatrix.code = "~110ABCD1234~14109501101020917";
		rdatamatrix.barType = RDataMatrix.DATAMATRIX;
		rdatamatrix.dotPixels = 3;
		rdatamatrix.encoding = RDataMatrix.E_ASCII;
		rdatamatrix.processTilde=true;

note the value to be encoded is ~110ABCD1234~14109501101020917. The value starts with ~1 and it contains another ~1 as field separator because the AI 10 is a variable length filed.

You can download our Datamatrix evaluation version here.