CODE 128
Solutions available for printing Barcode Code 128:
Non Windows: (Unix, SAP etc). Printer Plug-in & Network
Solutions - Any Manufacturer's Printer of MFD:
Non Windows: (Unix & SAP etc). Printer Plug-In Solutions -
Graphic Image - Barcode Graphic - Generated by us.
Code 128, EAN 128, UCC 128, GS1 128, DUN 14, UCC 14, SCC 14
History
Code 128 was introduced in 1981 to address the increasing capacity of electronics and tracking needs for inventory. It has since been widely adopted by industry, and several barcode topologies have been based on it.
Specification
Code 128 is a high density, modern barcode. It is used widely across the world in many different applications.
Supports numbers and full ASCII character set including keyboard control codes. Code 128 supports three different subsets which allow use of different parts of the Code 128 character set. These subsets are known as A,B,C, subsets A & B support standard characters, numbers, keyboard controls. Sub set C supports numbers only but allows the barcode to be compressed as each character in the sub set C table refers to a pair of numbers.
Code 128 also has features as Function codes (Application Identifiers) and the ability to change between subsets with in the same barcode.
Barcode Structure.
Quiet Zone
Start Character
Encoded Data
Check Character
Stop Character
Quiet Zone
Check digit is calculated from a Modula 103 calculation from the sum of all the weighted characters.
Sub Sets
Sub Set A - 0-9, A-Z, ASCII control codes, special characters
Sub Set B - 0-9, A-Z, a-z, special characters
Sub set C - 00-99 (double density encoding of numeric only data)
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Primary Information.
Code 128 is a familiar term, and can be used for printing the following variant codes.
As it’s name suggests, Code 128 is capable of representing the full range of 128 ASCII characters.
Code 128 is an increasingly popular alternative to Code 39 for Alpha/Numeric codes.
A key feature of code 128 is that is capable of encoding ASCII functions (e.g. Carriage Return) as well as printable characters. To employ these facilities fully, Code 128 uses three character sets (sometimes called tables or subsets) to fully define the conversion of each bar code symbol to an ASCII character.
Some printing packages automatically select the code set according to the data required in the bar code whilst for others you will need to know and specify which table set variation you wish to use. Code 128 table set C is a numeric only table set and can give very compact numeric only bar codes.
Secondary Information:
Code 128 was introduced in 1981 as a very high density alphanumeric barcode. Since 1990 it has seen increasing use in a variety of applications.
It is a variable length, continuous symbology with multiple element widths. Each Code 128 character has 11 modules which may be either black or white. Each character has three bars and three spaces and begin with a bar and ends with a space.
Code 128 has 106 different printed character patterns. Each printed character can have one of three different functions depending on which of the three different character sets is used. Three different character sets tell the barcode reader which of the character sets is initially being used and three shift codes allow changing of character sets within the symbol.
Character Set A consists of Uppercase, numeric characters and allows access to special ASCII control codes such as ESC or CR.
Character Set B consists of Uppercase, Lowercase and numeric characters.
Character Set C consists of a 100 two digit pairs 00 through to 99. This allows the effective density of Code 128 to be doubled when printing numeric data.
A variant of Code 128 is used in retail distribution for carton tracking. This is referred as UCC128 (USA) or EAN128 (Outside USA) and uses the standard Code 128 character set except that every symbol uses a Start C character, followed by a Function One Code character
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