- GS1 DataBar Overview | Benefits
- UPC to DataBar POS Barcode Comparison
- DataBar POS Symbols for GTIN only (DataBar and DataBar Stacked)
- DataBar POS Symbols for GTIN, Coupons or Other Data (DataBar Expanded and Expanded Stacked)
- DataBar Non-POS Symbols (DataBar Limited, Stacked and Truncated)
- Composite Components
- Printing GS1 DataBar
- Reading and Verifying
GS1 DataBar Expanded Overview | Benefits
The GS1 DataBar Expanded barcode symbology is a POS barcode type from GS1 that can be used in place of the old UPC and EAN barcode types. DataBar Expanded barcodes may be utilized to solve many problems in POS, grocery, and healthcare, where items are too small to allow for traditional barcode types, or where additional information needs to be encoded such as product weight, expiration dates, or serial numbers. DataBar Expanded is also the only linear 1D barcode symbology approved by GS1 to encode GTIN-14 numbers and additional data in all retail checkout systems (POS) and is required by the Joint Industry Coupon Committee (JICC) to be used for DataBar Coupon Barcodes. DataBar Expanded and also be stacked to make it more rectangular or square.
The benefits of using DataBar Expanded are detailed in the GS1 DataBar Business Case document. In summary, these benefits include:
- Ability to encode the entire 14 digit GTIN, eliminating the need to use UPC and EAN symbols.
- The standard DataBar symbol is smaller in size than UPC-A symbols.
- Maximize revenue, lower food waste, and provide discounts to customers purchasing food that is near expiration. Currently being used in Finland with Froodly and LOTTE Mart grocery stores in Korea. Also, refer to the Inventory Management Executive Summary by Planet Retail.
- Traceability and product recall capabilities.
- Identification of vendor for fresh produce.
- Better sell by and expiration date management.
- Quicker scanning than UPC and EAN symbols.
- Less chance of scan errors than UPC and EAN symbols because of the advanced modulus 79 or greater internal check digit. UPC and EAN symbols use only a mod 10 check digit.
- POS systems have been required to read DataBar symbols since 2010. Switching gradually to DataBar now is good preparation for when it will be required.
UPC to DataBar POS Barcode Comparison
The following is a comparison of a UPC-A barcode encoding the GTIN-12 data “123456789012” with DataBar barcodes encoding the same data for use in POS systems. The GTIN-12 is converted to GTIN-14 by adding zeros to the beginning of the number. The DataBar Expanded Stacked barcode below encodes the 14-digit GTIN and “Sell by Date” in about the same space as a standard UPC symbol. DataBar Expanded Stacked symbols may also be printed at smaller X dimensions than UPC and EAN symbols and sized with the segments property.
Table1. UPC to DataBar POS Size Comparison. (X=12 mils or .03CM)
UPC-A | DataBar | DataBar Stacked | DataBar Expanded Stacked |
| Encodes GTIN-12: 123456789012 | Encodes GTIN: (01)00123456789012 | Encodes GTIN:(01)00123456789012 | GTIN + Sell by Date; 4 Segments: (01)00123456789012(15)991231 |
 |  |  | |
The above GTIN barcodes were created at 96 DPI with the Barcode Image Generator.
DataBar POS Symbols Encoding the GTIN
DataBar Omnidirectional and DataBar Stacked Omnidirectional symbols are approved for POS use and encode only the GTIN. In all IDAutomation products, the DataToEncode for this barcode type is 14 digits of the GTIN. The last digit in the DataToEncode is the check digit. If unknown, enter 0 for the check digit. If 14 digits are not entered, zeros will be added to the beginning of the data. For example, 77012345678900 will scan as (01)77012345678907. There is an implied AI of 01 that should not be part of the DataToEncode, except when using DataBar Expanded.
Fig. 1. DataBar Omnidirectional Barcode Encoding GTIN “20012345678909”:
Fig. 2. DataBar Stacked Omnidirectional Barcode Encoding “00123456789012”:
DataBar Expanded POS Symbols Encoding the GTIN and Additional Information
DataBar Expanded and DataBar Expanded Stacked are capable of encoding the 14-digit GTIN, and additional data such as expiration dates, country of origin, and serial numbers up to 74 numeric or 41 alphabetic characters. Omnidirectional is not normally part of the title of this symbology, even though it is omnidirectional. In all IDAutomation products, the DataToEncode for this barcode type prefers parentheses around each AI in the barcode, however, it is not usually necessary. There is an implied FNC1 included at the beginning of the data encoded because this symbol is designed to be used only for GS1 applications.
Encoding GS1 AIs:
The AI combined with its data make up an Element String. Multiple defined length Element Strings may be encoded without any added delimiters or FNC1 codes. If only one variable length Element String is used and included at the end of the encoded data, a delimiter or FNC1 is not necessary. However, if it is necessary to encode two or more variable length Element Strings, such as (10) and (21), the ASCII 202 character (Ê) must be inserted as a delimiter after the data of a variable Element String that is not encoded last. For example: (01)34567890123457(10)3456789Ê(21)3456789012.
DataBar Expanded symbols are transformed into DataBar Expanded Stacked symbols by changing the segments property to a low even number such as 4, 6, or 8.
Fig. 3. DataBar Expanded Barcode Encoding “(01)98898765432106(3202)012345(15)991231”:
Fig. 4. 4-Segment DataBar Expanded Stacked Barcode Encoding GTIN, Weight and Sell By Date “(01)98898765432106(3202)012345(15)991231”:
Fig. 5. 6-Segment DataBar Coupon Barcode Encoding “(8110)10014141012345290110100”:
Fig. 6. DataBar POS Barcode Encoding GTIN, Price, Weight, Expiration Date, Country of Origin and Serial Number “(01)09501101420069(3922)995(3202)000100(17)100101(422)123(21)123456”:
Table 2. DataBar Expanded Barcodes may be sized with the segments property to change the height or width of the symbol.
DataBar Expanded | DataBar Expanded Stacked | DataBar Expanded Stacked |
| GTIN + Sell Date; 22 Segments: (01)00123456789012(15)991231 | GTIN + Sell Date; 4 Segments: (01)00123456789012(15)991231 | GTIN + Sell Date; 2 Segments: (01)00123456789012(15)991231 |
 | |  |
The above DataBar barcodes were created at 96 DPI with the DataBar Barcode Image Generator.
DataBar Non-POS Symbols
DataBar Truncated, DataBar Stacked, and DataBar Limited symbols are not omnidirectional and are not approved for POS use. It is rare to see these barcode types in use because they are not approved for POS and they do not offer any additional functionality over the POS-approved symbologies except that they are smaller in size. If the size is a concern, it is better to use GS1-DataMatrix or GS1-QRCode instead of DataBar because these symbologies will be standard in the future according to GS1 and they can encode much more information than the GTIN.
In all IDAutomation products, the DataToEncode for this barcode type is 14 digits of the GTIN. The last digit in the DataToEncode is the check digit. If unknown, enter 0 for the check digit. If 14 digits are not entered, zeros will be added to the beginning of the data. For example, 77012345678900 will scan as (01)77012345678907. There is an implied AI of 01 that should not be part of the DataToEncode.
Fig. 7. DataBar Truncated Encoding “00012345678905”:
Fig. 8. DataBar Stacked Encoding “00012345678905”:
Fig. 9. DataBar Limited Encoding “15012345678907”:
Printing GS1 DataBar
The following barcode components support DataBar barcode printing and creation:
- DataBar Barcode Fonts allow the creation of all DataBar and Expanded barcodes from a single font.
- Barcode Server for IIS enables IIS to generate DataBar barcodes.
- ASPX Barcode Generator easily generates barcodes on websites with ASPX script processing enabled.
- Barcode Image Generator is a stand-alone application that creates barcode image files for PhotoShop, Quark, CorelDraw, and others for printing or display and is compatible with DataBar Coupon barcode specifications.
- Barcode Label Design Software Pro is used to design and print barcode labels from data that is incremented or retrieved directly from a database.
- Crystal Reports Barcode Generators create DataBar symbols in Crystal Reports and Visual Studio.
- .NET Windows Forms Barcode Controls create and print barcodes from Microsoft Visual Studio.NET applications.
- Java Barcode Packages generate barcodes on any java compatible system.
- SSRS Barcode Generator for Microsoft SSRS Report Builder and Report Designer.
Reading and Verifying GS1 DataBar
IDAutomation offers the following hand-held DataBar Barcode Scanners:
- IDAutomation USB Barcode Scanner with DataBar offers superior performance at an affordable price and reads GS1 DataBar-14, DataBar Limited, DataBar Expanded, DataBar Expanded Stacked, DataBar Truncated, UPC, EAN, and other common barcodes.
- IDAutomation 2D Barcode Scanner has the omnidirectional reading of DataBar.