Barcode Basics >
Different Types of
Barcodes > MSI Plessey
The MSI Plessey barcode is a variant of the Plessey barcode. It
is a pulse-width modulated non-self checking code, and is used primarily in store shelf
labeling. Each character consists of eight elements, four bars and four spaces. The
character set includes the digits 0 through 9. A Modulo 10 checksum is appended to the end
of the code.