A method for controlling medicament dispensing from a cassette moved from a mount for the cassette includes mounting the cassette fully on the mount, the cassette being loaded with bulk-form medicaments, generating a first signal indicating that the cassette is fully mounted, enabling operation of the cassette responsive to the first signal, unmounting the cassette at least partially from the mount, generating a second signal indicating that the cassette has been at least partially unmounted, and disabling further operation of the cassette responsive to the second signal even if the cassette is fully remounted. The method may include also generating a third signal indicating that the cassette is ready for further dispensing of medicaments, remounting the cassette fully on the mount, generating the first signal indicating that the cassette is fully remounted, and enabling further operation of the cassette responsive to the first and third signals after disabling further operation of the cassette.
