Re: bitwise severities on mbbiDirect

["Brian McAllister" <brian@hotrats.mit.edu>]

>>> "CL" == Carl Lionberger <calionberger@lbl.gov> writes:

  CL> For some time there were fields for specifying the one severity, zero
  CL> severity, and change-of-state severity for each bit (yes, 48 fields)
  CL> in mbbiDirectRecord.dbd; as far as I know there was never any code
  CL> for dealing with these fields in mbbiDirectRecord.c and now in 3.13.3
  CL> they have been removed from the dbd file.

The problem with trying to use these would be that the alarm status and
severity are global properties of the record.  There is no way for a client
to know which bit(s) actually caused the record to go into alarm.

Without that, the utility of these alarms seems quite limited.

----
Brian McAllister                    Controls Programmer/Beam Physicist
mcallister@mit.edu                        MIT-Bates Linear Accelerator
(617) 253-9537                                           Middleton, MA