Each destination has its own set of diagnostics PVs:
Desired Rate PV: TPG:SYS0:1:<DST00>:REQRATE
Actual Rate PV: (Under approval + development -not currently available) TPG:SYS0:1:<DST00>:RATE_RBV
MPS Beam Class RBV: TPG:SYS0:1:<ALW00>:MPSSTATE
Timing Beam Class set PV: TPG:SYS0:1:<ALW00>:MPSSETSTATE
Timing Beam Class RBV: TPG:SYS0:1:<ALW00>:MPSLATCH
The destinations are currently 16 and the name in the PV increments from DST00/ALW00 to DST15/ALW15, with the following association to actual Destinations:
DST00 SC1 Laser mask = 0x1
DST01 SC1 Gun mask = 0x2
DST02 SC1 TDINJ mask = 0x4
DST03 SC1 DIAG0 mask = 0x8
DST04 SC1 DumpBSY mask = 0x10
DST05 SC1 TDUNDHXR mask = 0x20
DST06 SC1 TDUNDSXR mask = 0x40
DST07 SC1 DUMPHXR mask = 0x80
DST08 SC1 DUMPSXR mask = 0x100
DST09 SC1 S30XL mask = 0x200
DST10-DST15 Reserved for future destinations. The destinations list/order is defined by Patrick K. in his Beam Operational modes document.