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| Name | Description | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GACT | Measured gradient from cavity probe (MV/m) | |||||||||||||||
| GMAX | Maximum allowable gradient (MV/m) - readback only | |||||||||||||||
| ADES | Operation amplitude setpoint (MV) | |||||||||||||||
| AACT | Measured amplitude from cavity probe (MV) | |||||||||||||||
| AMAX | Maximum allowable amplitude (MV) | |||||||||||||||
| PDES | Operation phase setpoint (degrees, where 0 is on-crest) | |||||||||||||||
| PACT | Measured phase from cavity probe (degrees) | |||||||||||||||
| PREF | a.k.a.gold, phase offset used by LLRF to convert measured phase to one relative to on-crest operation, adjusted by beam phasing (degrees) | |||||||||||||||
| DFDES | Cavity detuning setpoint (Hz) - is this needed? | |||||||||||||||
| DFACT | Detune seen by the resonance system (Hz) | |||||||||||||||
| RFMODECTRL | RF mode control (SEL, SELA, SELAP) | |||||||||||||||
| RFMODE | Readback of current RF mode | |||||||||||||||
| RFCTRL | Cavity on/off control. Off = LLRF drive set to 0. (SSA control will be different.) | |||||||||||||||
| RFSTATE | Readback of cavity RF on/off state | |||||||||||||||
| AWF | Waveform of cavity probe amplitude, which is used to calculate AACT (MV) | |||||||||||||||
| PWF | Waveform of cavity probe phase, which is used to calculate PACT (degrees) | |||||||||||||||
| FWD | Forward signal from SSA to cavity - amplitude | |||||||||||||||
| FWDPWR | Forward signal from SSA to cavity - power | |||||||||||||||
| REV | Reverse signal from cavity - amplitude | |||||||||||||||
| REVPWR | Reverse signal from cavity - power | |||||||||||||||
| ALEM | LEM computed integrated RF amplitude (MV) per cavity and per cryomodule | |||||||||||||||
| PLEM | LEM computed phase (deg) | |||||||||||||||
| EGLEM | LEM computed energy gain (MeV) | |||||||||||||||
| CHLEM | LEM computed chirp (MeV) | |||||||||||||||
| FUDG | Beam-based scale factor applied to cavity probe amplitude readback. Nominal value of 1. | |||||||||||||||
| In Progress/Tentative | ||||||||||||||||
| RFREADY | Status of RF controls, (Ready, Not Ready) set to ready when control loops are closed and RF is continuous. Or will we ever run with pulsed RF? | |||||||||||||||
STAT | Status bits in software (define the bits) | |||||||||||||||
| HSTA | Hardware status | |||||||||||||||
| DFDES | Cavity detuning setpoint (Hz) | |||||||||||||||
| ERRWF | Error waveforms corresponding to waveforms above, captured and put in a separate buffer when a fault is detected (degrees or MV) | |||||||||||||||
| PZWF | Waveforms from tuner piezo motors, useful for finding microphonics. Units TBD. | |||||||||||||||
| Latching SRF Interlocks | ||||||||||||||||
| QUENCH_FLT |
Cavity quench fault, from interlock chassis. Current status, latched status, and reset command | |||||||||||||||
| QUENCH_LTCH | ||||||||||||||||
| QUENCH_RESET | ||||||||||||||||
| CPLRVAC_FLT |
Coupler vacuum fault, from interlock chassis. Current status, latched status, and reset command | |||||||||||||||
| CPLRVAC_LTCH | ||||||||||||||||
| CPLRVAC_RESET | ||||||||||||||||
| BMLNVAC_FLT |
Beamline vacuum fault, from interlock chassis. Current status, latched status, and reset command | |||||||||||||||
| BMLNVAC_LTCH | ||||||||||||||||
| BMLNVAC_RESET | ||||||||||||||||
| STEPTEMP_FLT |
Stepper temperature fault, from interlock chassis. Current status, latched status, and reset command | |||||||||||||||
| STEPTEMP_LTCH | ||||||||||||||||
| STEPTEMP_RESET | ||||||||||||||||
| CPLRTEMP_FLT |
Coupler temperature fault, from interlock chassis. Current status, latched status, and reset command | |||||||||||||||
| CPLRTEMP_LTCH | ||||||||||||||||
| CPLRTEMP_RESET | ||||||||||||||||
| INTLK_RESET_ALL | Reset all latched faults from interlock chassis | |||||||||||||||
| Non-Latching SRF Interlocks | ||||||||||||||||
| HEPRES_FLT | Helium pressure fault, from cryo system PLC | |||||||||||||||
| HELEVEL_FLT | Helium level fault, from cryo system PLC | |||||||||||||||
| CRYOHRTBT | Cryo PLC heartbeat fault. Generated by RF software when cryo data stops updating or updates too slowly | |||||||||||||||
| Interlock Thresholds | ||||||||||||||||
| CPLRVAC_THRES_L | ||||||||||||||||
| CPLRVAC_THRES_H | ||||||||||||||||
| BMLNVAC_THRES_L | ||||||||||||||||
| BMLNVAC_THRES_H | ||||||||||||||||
| STEPTEMP_THRES_L | ||||||||||||||||
| STEPTEMP_THRES_H | ||||||||||||||||
| CPLRTEMP_THRES_L | ||||||||||||||||
| CPLRTEMP_THRES_H | ||||||||||||||||
| Waveform Signals | ||||||||||||||||
The PVs below will be provided for each waveform signal. Each cavity has the following waveform signals:
| ||||||||||||||||
| Waveform | <SIG>:AWF | Signal amplitude waveform | ||||||||||||||
Statistics | <SIG>:AMEAN | Mean of <SIG>:AF | ||||||||||||||
| <SIG>:ASTD | Standard deviation of <SIG>:AWF | |||||||||||||||
| <SIG>:AMIN | Minimum of <SIG>:AF | |||||||||||||||
| <SIG>:AMAX | Maximum of <SIG>:AWF | |||||||||||||||
| Waveform | <SIG>:PWF | Signal phase waveform | ||||||||||||||
| Statistics | <SIG>:PMEAN | Mean of <SIG>:PWF | ||||||||||||||
| <SIG>:PSTD | Standard deviation of <SIG>:PWF | |||||||||||||||
| <SIG>:PMIN | Minimum of <SIG>:PWF | |||||||||||||||
| <SIG>:PMAX | Maximum of <SIG>:PWF | |||||||||||||||
| Waveform | <SIG>:PWRWF | Signal power waveform | ||||||||||||||
| Statistics | <SIG>:PWRMEAN | Mean of <SIG>:PWRTRACE | ||||||||||||||
| <SIG>:PWRSTD | Standard deviation of <SIG>:PWRWF | |||||||||||||||
| <SIG>:PWRMIN | Minimum of <SIG>:PWRWF | |||||||||||||||
| <SIG>:PWRMAX | Maximum of <SIG>:PWRWF | |||||||||||||||
| Waveform | <SIG>:ITWF | Signal I waveform | ||||||||||||||
| Waveform | <SIG>:QTWF | Signal Q waveform | ||||||||||||||
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