Plessey - bwipp/postscriptbarcode GitHub Wiki

Plessey is a continuous, arbitrary length barcode symbology for encoding hexadecimal data.

Also known as: Anker Code.

Variants:

• MSI Modified Plessey is a variant of the Plessey (UK) barcode developed by the MSI Data Corporation.

• The data can contain any of the following:
  • Numbers 0-9
  • Capital letters A-F
• Two mandatory check characters implementing a CRC check are automatically included.
• The includecheckintext option makes the calculated check characters appear in the human readable text.
• The unidirectional option generates a unidirectional Plessey symbol.

Equivalent symbols, the latter displaying the two mandatory check characters:

Data:    01234ABCD
Options: includetext
Encoder: plessey

Data:    01234ABCD
Options: includetext includecheckintext
Encoder: plessey

A unidirectional symbol:

Data:    01234ABCD
Options: unidirectional
Encoder: plessey