Motorola SYMBOL MINISCAN MSXX04 - Manual (Page 182)

10 - 76 Symbol MiniScan MSXX04 Series Integration Guide
MSI Plessey Check Digit Algorithm
Parameter # 33h
When the Two MSI Plessey check digits option is selected, an additional verification is required to ensure integrity.
Select one of the following algorithms.
MOD 10/ MOD 11
(00h)
*MOD 10/ MOD 10
(01h)