Open topic with navigation

GS1 Databar Limited

GS1 DataBar Limited is intended for applications where space is extremely limited and omni-directional scanning is not required. It is bidirectionally decodable and uses a mod 89 checksum for error correction.

ClosedThe Character Set

The GS1 DataBar Limited character set only contains the ten digits, 0-9.

ClosedThe Symbology Structure

Each barcode is a 14-digit numeral. There are actually 13 digits in the data stream. The 14th is a check digit. (There is also an implied application identifier of "01".) The first digit is simply a flag indicating whether or not the barcode is part of a composite barcode. When used as intended, to encode identification numbers, the second digit is an indicator digit which must be either "0" or "1". It is used to show things like level of packaging.

For GS1 DataBar Limited, each barcode has 46 bars and spaces in 74 modules, with a height of at least 10 modules. Each barcode begins and ends with two one-module wide guard bars, either a bar-space or a space-bar pattern. There are two data characters, each 26 modules wide with 7 bars and 7 spaces. Between them is a check character of 18 modules that also contains 7 bars and 7 spaces. It expresses the mod 89 checksum.

Unlike GS1 DataBar, GS1 DataBar Limited barcodes are entirely read from left to right.