Datalogic Scanning QUICKSCAN QS6500BT - Manual (Page 228)

Symbologies
6-140 QuickScan ® QS6500/QS6500 BT
MSI/Plessey
The following options apply to the MSI/Plessey symbology.
Disable/Enable MSI/Plessey
When this feature is disabled, the imager will not read MSI/Plessey bar
codes.
Checksum Verification
The imager will verify Mod 10, Mod 10/10, Mod 11/10, or no check
digits. Turn checksum verification on only when one or more checksums
are present in the MSI Plessey labels.
Checksum Transmit
When this option is enabled, the imager will transmit one-digit or two-
digit checksums, depending upon the setting for checksum verification.