The function and setting of the AIDA discriminators is as follows:

                  LEC (20MeV FSR)    MEC (1GeV FSR)    HEC (20GeV FSR)    Function

slow comparator   10keV/unit         500keV/unit       n/a                controls LEC/MEC ADC readout

fast comparator   100keV/unit        5MeV/unit         100MeV/unit        controls LEC/MEC disc readout
                                                                          controls HEC ADC readout


For example, a slow comparator setting of 0xa corresponds to a threshold of 100keV (LEC)
or 5MeV (MEC), and the default HEC fast comparator setting of 0x2 corresponds to 200MeV.