MSI Plessey - bwipp/postscriptbarcode GitHub Wiki

MSI Plessey is a continuous, non-self-checking, arbitrary length, numeric barcode symbology.

Also known as: MSI, MSI Modified Plessey.

Variants:

• Plessey (UK) is the original barcode upon which MSI Modified Plessey was based.

• The data can consist of any number of digits.
• The includecheck option calculates the check digit or check digits.
• The includecheckintext option makes the calculated check characters appear in the human readable text.
• The checktype option is used to specify the type of checksum, either:
  • checktype=mod10 (default)
  • checktype=mod1010
  • checktype=mod11
  • checktype=ncrmod11
  • checktype=mod1110
  • checktype=ncrmod1110
• The badmod11 option allows a checktype=mod11 checksum value of 10 to be encoded with a pair of check digits 10. Normally in checktype=mod11, any input whose checksum evaluates to 10 is considered invalid having no correct representation.

Data:    0123456789
Options: includecheck includetext
Encoder: msi

Data:    0123456789
Options: includecheck checktype=mod1110 includetext includecheckintext
Encoder: msi

Data:    0123456785
Options: includecheck checktype=mod11 badmod11 includetext includecheckintext
Encoder: msi