Microplate Labeler User Guide : Creating label formats : Barcodes and supported symbologies

Barcodes and supported symbologies
About this topic
This topic presents basic barcode concepts and provides examples of the supported symbologies.
Symbologies
Barcode symbologies define the mapping between a barcode and the text that it represents. There are more than 50 barcode symbologies. Barcode symbologies that are typically used in labs are those that create compact barcodes, such as Code 128, Code 39, and Interleaved 2 of 5. The Microplate Labeler also supports printing of 2D barcode symbologies. For examples of the symbologies that are supported by the Microplate Labeler printer, see Supported barcode symbologies.
 
 
Encoding and decoding
The printer includes encoding software that converts the text that you provide in a field into a barcode pattern.
If your Microplate Labeler has a barcode reader, the decoder software in the reader converts the pattern of a barcode back into text.
 
Encoding examples
The following example shows how a label will print when the word Test is represented in two types of fields:
 
The next example uses the same symbology, but the words Test label are used for both fields. Notice that the barcode is longer because the amount of text encoded is greater.
 
In the following example, the words Test label are printed as a text field and as a barcode field using the Code 39 symbology. If you compare this with the previous example, you can see that the different symbology makes a different barcode pattern.
 
The two-dimensional (2D) barcodes can contain more information than conventional linear barcodes because they encode data in both horizontal and vertical directions.
Supported barcode symbologies
The following table provides a summary of the symbologies supported on the Microplate Labeler. You can find complete descriptions of the symbologies on the web at various sites, for example, www.wikipedia.org.
 
Related topics
 
Setting up a VWorks labeling protocol
VWorks Automation Control User Guide, Print and Apply Task topic