GS1
DataBar Family of bar codes
GS1 DataBar (formerly Reduced Space Symbols or RSS) symbols can identify small
items and carry more information than the current EAN/UPC barcode (GS1 DataBar
symbols will not necessarily replace EAN/UCC bar codes, as it will be left to
the brand owner - the party responsible for specifying package design - to
decide). GS1 DataBar enables GTIN identification for hard-to-mark products like
fresh foods, jewelry and do-it-yourself hardware products and can carry GS1
Application Identifiers (AI) such as serial numbers, lot numbers, and
expiration dates. This creates the opportunity for solutions supporting product
authentication and traceability, product quality and effectiveness, variable
measure product identification, and couponing.
GS1 DataBar is a family of linear barcode symbologies used within the GS1
System. There are three types of GS1 DataBar symbols, two of which have a
number of versions optimized for different application requirements.
GS1 DataBar Expanded
GS1 DataBar Expanded is a variable length linear symbology capable of encoding
up to 74 numeric or 41 alphabetic characters of AI Element String data. GS1
DataBar Expanded is designed to encode primary and supplementary data in items
for Point-of-Sale (POS) and other applications. It has the same capabilities as
a GS1-128 (UCC/EAN-128) barcode except that it is also designed to be scanned
by omnidirectional slot scanners. It is designed for variable weight products,
perishable products, traceable retail products, and coupons.
The user data to be encoded into a GS1 DataBar Expanded barcode shall always
consist of application identifiers and data fields that comply with the data
standard of the GS1 General Specifications, formatted exactly as they would be
for encodation into a GS1-128 (UCC/EAN-128) barcode. The GS1-128 (UCC/EAN-128)
rules for concatenation of AI element strings, such as the use of a FNC1 to
separate a variable length element string from the element string following it,
shall be followed when encoding a GS1 DataBar Expanded barcode.

Sample of a GS1 DataBar Expanded/RSS Expanded Barcode
Note: Please refer to the Class
Reference documentation for more information about the properties and methods
stated in this document.
In order to get a GS1 DataBar Expanded/RSS Expanded barcode
image, please follow these steps:
-
Set the Symbology property to GS1DataBarExpanded or RssExpanded
-
Setting up dimensions:
-
Set the BarWidth property to 0.0208
(Value is expressed in Inches)
-
Set the BarHeight property to 0.7072 (34 * BarWidth) or higher
(Value is expressed in Inches)
-
Set the Code property with data complying GS1-128 (UCC/EAN-128) data
format i.e. application identifiers (AIs) + data fields