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R/W | Name | Description | SRF Example (CM 2 Cavity 1) | Gun/Buncher Example |
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R/W | RFMODECTRL | RF mode control (SEL, SELA, SELAP, SEL Raw, Pulse, Chirp) | ACCL:L1B:0210:RFMODECTRL | N/A |
R | RFMODE | Readback of current RF mode (SEL, SELA, SELAP, SEL Raw, Pulse, Chirp, Tone) | ACCL:L1B:0210:RFMODE |
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R/W | RFCTRL | Cavity on/off control. Off = LLRF drive set to 0. (SSA control will be different.) | ACCL:L1B:0210:RFCTRL |
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R | RFSTATE | Readback of cavity RF on/off state | ACCL:L1B:0210:RFSTATE | N/A |
R | RFREADYFORBEAM | Indicates cavity is in an okay state for beam operation. Possible states: Ready (numerical 1) = cavity RF is On and mode is SELAP Not ready (numerical 0) = Ready criteria not met | ACCL:L1B:0210:RFREADYFORBEAM |
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R/W | ADES | Operation amplitude setpoint (MV) (For SRF, this setting is used in SEL, SELA, SELAP modes.) | ACCL:L1B:0210:ADES |
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R/W | ACON | Configuration amplitude (MV) | ACCL:L1B:0210:ACON |
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W | ACONTODES | Push configuration amplitude value to ADES. To do this, write 1 to ACONTODES | ACCL:L1B:0210:ACONTODES |
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R | GDES | Gradient setpoint (MV/m) - readback only | ACCL:L1B:0210:GDES | N/A |
R | SEL_ASET | SRF amplitude setpoint in SEL Raw, Pulse, Chirp modes. Is in units of % of full drive scale. | ACCL:L1B:0210: |
AACTGACT gradient amplitude from cavity probe (MV |
/m)), averaged over LLRF waveform. Identical to CAV:AMEAN. Typically averaged over ~350 ms, but this can vary depending on waveform settings.
| ACCL:L1B:0210:AACTMEAN |
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R | GACTMEAN |
ACCL:L1B:0210:GACT | R/W | GACT | Measured gradient from cavity probe (MV/m), averaged over LLRF waveform. Typically averaged over ~350 ms, but this can vary depending on waveform settings.
| ACCL:L1B:0210: |
GACT/WAMAXADES_MAX | Maximum allowable amplitude (MV |
) - experts only). Minimum of SRF, RF, and Ops limits (below). | ACCL:L1B:0210: |
AMAXGMAX | Maximum allowable gradient (MV/m) - readback only/W | ADES_MAX_SRF | SRF maximum allowable amplitude, set by SRF experts (MV)
| ACCL:L1B:0210: |
GMAXPDES | Operation phase setpoint (degrees, where 0 is on-crestADES_MAX_RF | RF maximum allowable amplitude, set by RF experts (MV) | ACCL:L1B:0210: |
PDESPACT | Measured phase from cavity probe (degrees/W | ADES_MAX_OPS | Ops maximum allowable amplitude, set by Operations experts (MV) | ACCL:L1B:0210: |
PACT/WPREF | 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)PACTMEAN | Measured phase from cavity probe (degrees), averaged over LLRF waveform. Identical to CAV:PMEAN. Typically averaged over ~350 ms, but this can vary depending on waveform settings. | ACCL:L1B:0210: |
PREFSEL_POFFSEL offset setpoint (not used in SELA/GDR mode)setpoint (degrees, where 0 is on-crest by convention). Range -180 to 180. | ACCL:L1B:0210: |
SEL_POFF NAR | SEL_POFF_RBV | SEL phase offset (not used in SELA/GDR modePCON | Configuration phase (degrees) | ACCL:L1B:0210: |
SEL_POFF_RBV N/A | R | DFACT | Measured etune frequency (Hz) | N/A | R | DF | ACON |
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W | PCONTODES | Push configuration phase value to PDES. To do this, write 1 to PCONTODES | ACCL:L1B:0210:PCONTODES |
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R/W | CKP | Cavity needs to be phased with respect to beam. Phasing program should set this to 0 when phasing is complete. It is set to 1 automatically when someone accepts a new Phase Reference Line offset. Okay (numerical 0) Check phase (numerical 1) - cavity needs to be phased |
Measured detune frequency (Hz) using state space equation, cavity and forward signals - used to drive piezosDF N/A | DFVALID | Measured detune frequency (Hz) using state space equation, cavity and forward signals is valid. If it is not valid, its value cannot be used and the resonance system will not automatically change the piezo setting. In order for it to be valid, there must be sufficient cavity signal and it must be within +/- a couple hundred Hz. | ACCL:L1B:0210:DFVALID | N/A | CKPSUM | Alarm status for: cavity needs to be phased with respect to beam. Takes into account whether cavity is parked. Okay (numerical 0) Check phase (numerical 2) | ACCL:L1B:0210:CKPSUM |
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W | GOLD_PDES | 'Golds' PDES. It will cause PREF to be updated and leave PDES at zero. How to use: - Find maximum energy by adjusting PDES
- Set GOLD_PDES to 1
Doing so will cause: a. PREF to be set to (PREF-PDES) b. PDES will then be set to 0 | ACCL:L1B:0210:GOLD_PDES |
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R/W | PREF | Do not set PREF directly. Instead, use GOLD_PDES above. Phase offset (degrees) used by LLRF to convert measured phase to one relative to on-crest operation, adjusted by (gold) beam phasing. Recommend not setting PREF directly, but using GOLD_PDES (above). PREF is subtracted from PDES before writing phase to hardware. PREF is added to the raw phase readback from hardware. | ACCL:L1B:0210:PREF |
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R/W | PTOF | Phase offset (degrees) used to adjust for changes in beam time-of-arrival, in particular for changes in bunch compressor path length. Unlike PREF, changing PTOF will immediately change the cavity phase. PTOF is subtracted from PDES before writing phase to hardware. PTOF is added to the raw phase readback from hardware. | ACCL:L1B:0210:PTOF |
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R/W | SEL_POFF | SEL phase offset setpoint | ACCL:L1B:0210:SEL_POFF | N/A |
R | SEL_POFF_RBV | SEL phase offset readback | ACCL:L1B:0210:SEL_POFF_RBV | N/A |
R | DFACT | Measured detune frequency (Hz) | N/A |
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R | DF | Measured detune frequency (Hz) using state space equation, cavity and forward signals - used to drive piezos | ACCL:L1B:0210:DF | N/A |
R | DFVALID | Measured detune frequency (Hz) using state space equation, cavity and forward signals is valid. If it is not valid, its value cannot be used and the resonance system will not automatically change the piezo setting. In order for it to be valid, there must be sufficient cavity signal and it must be within +/- a couple hundred Hz. | ACCL:L1B:0210:DFVALID | N/A |
R | DF_FC | Measured detune frequency (Hz) using frequency counter method - not used in resonance control, larger operating range than DF | ACCL:L1B:0210:DF_FC | N/A |
R | CHIRP:DF | Measured detune frequency (Hz) using chirp method - only active in Chirp and Pulsed modes, primarily for use when cavity is many kHz out of tune, operating range of tens of kHz or more | ACCL:L1B:0210:CHIRP:DF | N/A |
R/W | ALEM | LEM computed integrated RF amplitude (MV) per cavity and per cryomodule | ACCL:L1B:0210:ALEM |
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R/W | PLEM | LEM computed phase (deg) | ACCL:L1B:0210:PLEM |
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R/W | EGLEM | LEM computed energy gain (MeV) | ACCL:L1B:0210:EGLEM |
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R/W | CHLEM | LEM computed chirp (MeV) | ACCL:L1B:0210:CHLEM |
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R/W | CAV:FUDGE | Beam-based scale factor applied to cavity probe amplitude readback. Nominal value of 1. CAV:SCALE = cavity_preliminary_scaling * CAV:FUDGE CAV:SCALE is applied at the waveform level and so FUDGE is included in scalars like AACT, CAV:AMEAN, CAV:AMIN, CAV:AMAX, etc. and waveforms like CAV:IWF, CAV:QWF, CAV:AWF, etc. Example: Cavity ADES and AACTMEAN are 10 MV, but measured energy gain is 11 MV. Set CAV:FUDGE to 1.1. This will cause the RF drive level to be adjusted by 1/1.1 new_drive = original_drive / 1.1 and the cavity amplitude readback to be adjusted by 1.1. | ACCL:L1B:0210:CAV:FUDGE |
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R | L | Cavity design length - constant | ACCL:L1B:0210:L | N/A |
R | FREQ | Cavity design frequency - constant | ACCL:L1B:0210:FREQ | N/A |
R | IMPED | Cavity design shunt impedance - constant | ACCL:L1B:0210:IMPED | N/A |
R | PWRDISS | Cavity dissipated power (W). Calculated by LLRF from Q0 and cavity amplitude. Sent by LLRF to cryo controls. | ACCL:L1B:0210:PWRDISS |
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R | Q0 | Cavity Q0 (unitless), including user fudge factor. This is the value used by HaLO, LLRF calculation of dissipated power, etc. Formula: Q0 = Q0:MEAS * Q0:FUDGE | ACCL:L1B:0210:Q0 |
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R/W | Q0:MEAS | Last measured cavity Q0 (unitless) | ACCL:L1B:0210:Q0:MEAS |
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R/W | Q0:FUDGE | Cavity Q0 fudge factor (unitless). Nominal value of 1. Can be used to adjust Q0 if suspect actual Q0 is not Q0:MEAS, for example due to recent quench. | ACCL:L1B:0210:Q0:FUDGE |
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SRF Interlocks - Per Cavity |
W | INTLK_RESET_ALL | Reset all latched faults from RFS and Resonance/Interlock chassis | ACCL:L1B:0210:INTLK_RESET_ALL |
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R | RFS:INTLK_FIRST | Bit mask indicating which interlock fault was first detected by RFS. | ACCL:L1B:0210:RFS:INTLK_FIRST | N/A |
R | RFS:FLTINTLK_FIRST | For last captured fault waveform, bit mask indicating which interlock fault was first detected by RFS | ACCL:L1B:0210:RFS:FLTINTLK_FIRST | N/A |
R | QUENCH_FLT |
Cavity quench fault, from RFS chassis. Current status, latched status, bypass command, bypass status, counts of today's faults, yesterday's faults, total faults, a resettable counter's faults. | ACCL:L1B:0210:QUENCH_FLT |
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R | QUENCH_LTCH | ACCL:L1B:0210:QUENCH_LTCH |
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W | QUENCH_BYP | ACCL:L1B:0210:QUENCH_BYP |
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R | QUENCH_BYP_RBV | ACCL:L1B:0210:QUENCH_BYP_RBV |
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R | QUENCH_CNTT | ACCL:L1B:0210:QUENCH_CNTT |
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R | QUENCH_CNTY | ACCL:L1B:0210:QUENCH_CNTY |
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R | QUENCH_CNT | ACCL:L1B:0210:QUENCH_CNT |
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R | QUENCH_CNTU | ACCL:L1B:0210:QUENCH_CNTU |
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R | STEPTEMP_FLT | Stepper temperature fault, from Interlock chassis. Current status, latched status, bypass command, bypass status, counts of today's faults, yesterday's faults, total faults, a resettable counter's faults. | ACCL:L1B:0210:STEPTEMP_FLT |
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R | STEPTEMP_LTCH | ACCL:L1B:0210:STEPTEMP_LTCH |
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W | STEPTEMP_BYP | ACCL:L1B:0210:STEPTEMP_BYP |
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R | STEPTEMP_BYP_RBV | ACCL:L1B:0210:STEPTEMP_BYP_RBV |
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R | STEPTEMP_CNTT | ACCL:L1B:0210:STEPTEMP_CNTT |
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R | STEPTEMP_CNTY | ACCL:L1B:0210:STEPTEMP_CNTY |
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R | STEPTEMP_CNT | ACCL:L1B:0210:STEPTEMP_CNT |
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R | STEPTEMP_CNTU | ACCL:L1B:0210:STEPTEMP_CNTU |
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R | CPLRTEMP1_FLT |
Coupler temperature 1 fault, from Interlock chassis. Current status, latched status, bypass command, bypass status, counts of today's faults, yesterday's faults, total faults, a resettable counter's faults. | ACCL:L1B:0210:CPLRTEMP1_FLT |
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R | CPLRTEMP1_LTCH | ACCL:L1B:0210:CPLRTEMP1_LTCH |
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W | CPLRTEMP1_BYP | ACCL:L1B:0210:CPLRTEMP1_BYP |
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R | CPLRTEMP1_BYP_RBV | ACCL:L1B:0210:CPLRTEMP1_BYP_RBV |
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R | CPLRTEMP1_CNTT | ACCL:L1B:0210:CPLRTEMP1_CNTT |
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R | CPLRTEMP1_CNTY | ACCL:L1B:0210:CPLRTEMP1_CNTY |
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R | CPLRTEMP1_CNT | ACCL:L1B:0210:CPLRTEMP1_CNT |
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R | CPLRTEMP1_CNTU | ACCL:L1B:0210:CPLRTEMP1_CNTU |
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R | CPLRTEMP2_FLT |
Coupler temperature 2 fault, from Interlock chassis. Current status, latched status, bypass command, bypass status, counts of today's faults, yesterday's faults, total faults, a resettable counter's faults. | ACCL:L1B:0210:CPLRTEMP2_FLT |
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R | CPLRTEMP2_LTCH | ACCL:L1B:0210:CPLRTEMP2_LTCH |
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W | CPLRTEMP2_BYP | ACCL:L1B:0210:CPLRTEMP2_BYP |
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R | CPLRTEMP2_BYP_RBV | ACCL:L1B:0210:CPLRTEMP2_BYP_RBV |
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R | CPLRTEMP2_CNTT | ACCL:L1B:0210:CPLRTEMP2_CNTT |
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R | CPLRTEMP2_CNTY | ACCL:L1B:0210:CPLRTEMP2_CNTY |
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R | CPLRTEMP2_CNT | ACCL:L1B:0210:CPLRTEMP2_CNT |
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R | CPLRTEMP2_CNTU | ACCL:L1B:0210:CPLRTEMP2_CNTU |
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R | PLL_FLT | FPGA PLL lock fault, from RFS chassis. Current status, latched status, counts of today's faults, yesterday's faults, total faults, a resettable counter's faults. Cannot be bypassed. | ACCL:L1B:0210:PLL_FLT |
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R | PLL_LTCH | ACCL:L1B:0210:PLL_LTCH |
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R | PLL_CNTT | ACCL:L1B:0210:PLL_CNTT |
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R | PLL_CNTY | ACCL:L1B:0210:PLL_CNTY |
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R | PLL_CNT | ACCL:L1B:0210:PLL_CNT |
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R | PLL_CNTU | ACCL:L1B:0210:PLL_CNTU |
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R | IOCWDOG_FLT |
EPICS IOC watchdog fault, from RFS chassis. Current status, latched status, bypass command, bypass status, counts of today's faults, yesterday's faults, total faults, a resettable counter's faults. | ACCL:L1B:0210:IOCWDOG_FLT |
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R | IOCWDOG_LTCH | ACCL:L1B:0210:IOCWDOG_FLT |
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W | IOCWDOG_BYP | ACCL:L1B:0210:IOCWDOG_BYP |
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R | IOCWDOG_BYP_RBV | ACCL:L1B:0210:IOCWDOG_BYP_RBV |
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R | IOCWDOG_CNTT | ACCL:L1B:0210:IOCWDOG_CNTT |
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R | IOCWDOG_CNTY | ACCL:L1B:0210:IOCWDOG_CNTY |
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R | IOCWDOG_CNT | ACCL:L1B:0210:IOCWDOG_CNT |
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R | IOCWDOG_CNTU | ACCL:L1B:0210:IOCWDOG_CNTT |
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R | SSA_FLT |
SSA permit fault, from RFS chassis. Current status, latched status, bypass command, bypass status, counts of today's faults, yesterday's faults, total faults, a resettable counter's faults. | ACCL:L1B:0210:SSA_FLT |
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R | SSA_LTCH | ACCL:L1B:0210:SSA_LTCH |
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W | SSA_BYP | ACCL:L1B:0210:SSA_BYP |
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R | SSA_BYP_RBV | ACCL:L1B:0210:SSA_BYP_RBV |
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R | SSA_CNTT | ACCL:L1B:0210:SSA_CNTT |
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R | SSA_CNTY | ACCL:L1B:0210:SSA_CNTY |
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R | SSA_CNT | ACCL:L1B:0210:SSA_CNT |
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R | SSA_CNTU | ACCL:L1B:0210:SSA_CNTU |
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SRF Interlocks - Per Rack (A or B) |
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R | CPLRVAC[A,B]_FLT |
Coupler vacuum fault, from Interlock chassis. Current status, latched status, bypass command, bypass status, counts of today's faults, yesterday's faults, total faults, a resettable counter's faults. | ACCL:L1B:0200:CPLRVACA_FLT |
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R | CPLRVAC[A,B]_LTCH | ACCL:L1B:0200:CPLRVACA_LTCH |
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W | CPLRVAC[A,B]_BYP | ACCL:L1B:0200:CPLRVACA_BYP |
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R | CPLRVAC[A,B]_BYP_RBV | ACCL:L1B:0200:CPLRVACA_BYP_RBV |
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R | CPLRVAC[A,B]_CNTT | ACCL:L1B:0200:CPLRVACA_CNTT |
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R | CPLRVAC[A,B]_CNTY | ACCL:L1B:0200:CPLRVACA_CNTY |
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R | CPLRVAC[A,B]_CNT | ACCL:L1B:0200:CPLRVACA_CNT |
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R | CPLRVAC[A,B]_CNTU | ACCL:L1B:0200:CPLRVACA_CNTU |
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R | BMLNVAC[A,B]_FLT |
Beamline vacuum |
R | DF_FC | Measured detune frequency (Hz) using frequency counter method - not used in resonance control, larger operating range than DF | ACCL:L1B:0210:DF_FC | N/A |
R | CHIRP:DF | Measured detune frequency (Hz) using chirp method - only active in Chirp and Pulsed modes, primarily for use when cavity is many kHz out of tune, operating range of tens of kHz or more | ACCL:L1B:0210:CHIRP:DF | N/A |
R/W | ALEM | LEM computed integrated RF amplitude (MV) per cavity and per cryomodule | ACCL:L1B:0210:ALEM | R/W | PLEM | LEM computed phase (deg) | ACCL:L1B:0210:PLEM | R/W | EGLEM | LEM computed energy gain (MeV) | ACCL:L1B:0210:EGLEM | R/W | CHLEM | LEM computed chirp (MeV) | ACCL:L1B:0210:CHLEM | R/W | CAV:FUDG | Beam-based scale factor applied to cavity probe amplitude readback. Nominal value of 1. | ACCL:L1B:0210:CAV:FUDG | R | L | Cavity design length - constant | ACCL:L1B:0210:L | N/A |
R | FREQ | Cavity design frequency - constant | ACCL:L1B:0210:FREQ | N/A |
R | IMPED | Cavity design shunt impedance - constant | ACCL:L1B:0210:IMPED | N/A |
Tentative |
STAT | Status bits in software (define the bits) | HSTA | Hardware status | SRF Interlocks - Per Cavity |
W | INTLK_RESET_ALL | Reset all latched faults from RFS and Resonance/Interlock chassis | ACCL:L1B:0210:INTLK_RESET_ALL | R | RFS:INTLK_FIRST | Bit mask indicating which interlock fault was first detected by RFS. | ACCL:L1B:0210:RFS:INTLK_FIRST | N/A |
R | RFS:FLTINTLK_FIRST | For last captured fault waveform, bit mask indicating which interlock fault was first detected by RFS | ACCL:L1B:0210:RFS:FLTINTLK_FIRST | N/A |
R | QUENCH_FLT | Cavity quench fault, from RFS chassis. Current status, latched status, bypass command, bypass status
ACCL:L1B:0210:QUENCH_FLT | R | QUENCH_LTCH | ACCL:L1B:0210:QUENCH_LTCH | W | QUENCH_BYP | ACCL:L1B:0210:QUENCH_BYP | R | QUENCH_BYP_RBV | ACCL:L1B:0210:QUENCH_BYP_RBV | R | STEPTEMP_FLT |
Stepper temperature fault, from Interlock chassis. Current status, latched status, bypass command, bypass |
command, bypass statusstatus, counts of today's faults, yesterday's faults, total faults, a resettable counter's faults. | ACCL:L1B: |
0210STEPTEMPSTEPTEMPBMLNVAC[A,B]_LTCH | ACCL:L1B: |
0210STEPTEMPSTEPTEMPBMLNVAC[A,B]_BYP | ACCL:L1B: |
0210STEPTEMPBYPSTEPTEMPBMLNVAC[A,B]_BYP_RBV | ACCL:L1B: |
0210STEPTEMPCPLRTEMP1_FLT | Coupler temperature 1 fault, from Interlock chassis. Current status, latched status, bypass command, bypass statusBMLNVAC[A,B]_CNTT | ACCL:L1B: |
0210CPLRTEMP1FLTCPLRTEMP1_LTCHBMLNVAC[A,B]_CNTY | ACCL:L1B: |
0210CPLRTEMP1LTCHW | CPLRTEMP1_BYP
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R | BMLNVAC[A,B]_CNT | ACCL:L1B: |
0210CPLRTEMP1BYPCPLRTEMP1_BYP_RBV BMLNVAC[A,B]_CNTU | ACCL:L1B: |
0210CPLRTEMP1BYP_RBVCPLRTEMP2Coupler temperature 2 Interlock chassis local Cryo PLC. Current status, |
latched status, bypass command, bypass statuslatched status, bypass command, bypass status, counts of today's faults, yesterday's faults, total faults, a resettable counter's faults. |
0210CPLRTEMP2CPLRTEMP2CRYOSUM[A,B]_LTCH | ACCL:L1B: |
0210CPLRTEMP2CPLRTEMP2CRYOSUM[A,B]_BYP | ACCL:L1B: |
0210CPLRTEMP2CPLRTEMP2CRYOSUM[A,B]_BYP_RBV | ACCL:L1B: |
0210CPLRTEMP2PLL_FLT | FPGA PLL lock fault, from RFS chassis. Current status, latched status. Cannot be bypassed. CRYOSUM[A,B]_CNTT | ACCL:L1B: |
0210PLLFLTPLL_LTCH CRYOSUM[A,B]_CNTY | ACCL:L1B: |
0210PLLLTCHIOCWDOG_FLT | EPICS IOC watchdog fault, from RFS chassis. Current status, latched status, bypass command, bypass statusCRYOSUM[A,B]_CNT | ACCL:L1B:0200:CRYOSUMA_CNT |
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R | CRYOSUM[A,B]_CNTU | ACCL:L1B: |
0210IOCWDOGFLTR | IOCWDOG_LTCH | ACCL:L1B:0210:IOCWDOG_FLT | W | IOCWDOG_BYP | ACCL:L1B:0210:IOCWDOG_BYP | R | IOCWDOG_BYP_RBV | ACCL:L1B:0210:IOCWDOG_BYP_RBV | R | SSA_FLT | SSA permit fault, from RFS chassis. Current status, latched status, bypass command, bypass status
CNTU |
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SRF Interlocks - Per Cryomodule - Tentative |
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R | CRYOSUM_FLT | Cryo summary status from local Cryo PLC. Current status | ACCL:L1B:0200:CRYOSUM_FLT |
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R | HELEVEL_FLT | Cryo Helium level status from local Cryo PLC. Current status | ACCL:L1B:0200:HELEVEL_FLT |
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R | HEPRES_FLT | Cryo Helium pressure status from local Cryo PLC. Current status | ACCL:L1B:0200:HEPRES_FLT |
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R | CRYOHEARTBEAT_FLT | Cryo PLC heartbeat fault. Generated by RF software when cryo data stops updating or updates too slowly | ACCL:L1B:0200:CRYOPLC_HEARTBEAT |
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SRF Cavity Characterization and Expert Settings |
R | QLOADED | Loaded Q |
ACCL:L1B:0210:SSA_FLT | R | SSA_LTCH | ACCL:L1B:0210:SSA_LTCH | W | SSA_BYP SSA_BYPR | SSA_BYP_RBV QLOADED |
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R | LDCOEF | Lorentz detuning coefficient | ACCL:L1B:0210: |
SSA_BYP_RBVSRF Interlocks - Per Rack (A or B) | R | CPLRVAC[A,B]_FLT | LDCOEF |
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R | BCOEFM | State space B coefficient magnitude | ACCL:L1B:0210:BCOEFM |
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R | BCOEFP | State space B coefficient phase |
Coupler vacuum fault, from Interlock chassis. Current status, latched status, bypass command, bypass status
0200:CPLRVACA_FLT R | CPLRVAC[A,B]_LTCH0210:BCOEFP |
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R | SSA:SLOPE | SSA curve parameter - slope | ACCL:L1B |
:0200:CPLRVACA_LTCH W | CPLRVAC[A,B]_BYP | :0210:SSA:SLOPE |
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R | SSA:PED | SSA curve parameter - pedestal | ACCL:L1B: |
0200:CPLRVACA_BYP R | CPLRVAC[A,B]_BYP_RBV | ACCL:L1B:0200:CPLRVACA_BYP_RBV | R | BMLNVAC[A,B]_FLT | Beamline vacuum fault, from Interlock chassis. Current status, latched status, bypass command, bypass status
ACCL:L1B:0200:BMLNVACA_FLT | R | BMLNVAC[A,B]_LTCH | ACCL:L1B:0200:BMLNVACA_LTCH | W | BMLNVAC[A,B]_BYP | ACCL:L1B:0200:BMLNVACA_BYP | R | BMLNVAC[A,B]_BYP_RBV | ACCL:L1B:0200:BMLNVACA_BYP_RBV | R | CRYOSUM[A,B]_FLT | Cryo summary fault, from local Cryo PLC. Current status, latched status, bypass command, bypass status
ACCL:L1B:0200:CRYOSUMA_FLT | 0210:SSA:PED |
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R | SSA:MINX | SSA curve parameter - min x | ACCL:L1B:0210:SSA:MINX |
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R | SSA:DRV_MAX | Maximum drive to SSA, range 0 to 1. Do not change this directly. It is set by SSA calibration script. | ACCL:L1B:0210:DRV_MAX |
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Waveform Signals |
Each SRF cavity has the following waveform signals: Description | PV name, <SIG> in following section | Amplitude Units | Power Units | Phase Units | Forward Power | FWD | sqrt(W) | W | degrees | Reverse/Reflected Power | REV | sqrt(W) | W | degrees | Cavity Probe | CAV | MV | mW | degrees | DAC (FPGA internal, input to DAC that drives SSA) | DAC | % of full DAC scale | (% of full DAC scale)^2 | degrees | Detune (see below) | DF | Hz | N/A | N/A | Drive (RFS chassis loopback) - waveform disabled by default | DRV | sqrt(W) | W | degrees |
For SRF systems, these PVs are provided for CAV, FWD, REV, DAC (and DRV only during expert diagnostics/troubleshooting.) Example PVs are for CAV. |
R | <SIG>:AWF | Signal amplitude waveform | ACCL:L1B:0210:CAV:AWF |
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R | <SIG>:AMEAN | Mean of <SIG>:AWF | ACCL:L1B:0210:CAV:AMEAN |
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R | <SIG>:ASTD | Standard deviation of <SIG>:AWF | ACCL:L1B:0210:CAV:ASTD |
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R | <SIG>:ARSTD | Standard deviation of <SIG>:AWF divided by mean of <SIG>:AWF | ACCL:L1B:0210:CAV:ARSTD |
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R | <SIG>:AMIN | Minimum of <SIG>:AWF | ACCL:L1B:0210:CAV:AMIN |
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R | <SIG>:AMAX | Maximum of <SIG>:AWF | ACCL:L1B:0210:CAV:AWF |
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R | <SIG>:PWF | Signal phase waveform | ACCL:L1B:0210:CAV:PWF |
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R | <SIG>:PMEAN | Mean of <SIG>:PWF | ACCL:L1B:0210:CAV:PMEAN |
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R | <SIG>:PSTD | Standard deviation of <SIG>:PWF | ACCL:L1B:0210:CAV:PSTD |
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R | <SIG>:PRSTD | Standard deviation of <SIG>:PWF divided by mean of <SIG>:PWF | ACCL:L1B:0210:CAV:PRSTD |
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R | <SIG>:PMIN | Minimum of <SIG>:PWF | ACCL:L1B:0210:CAV:PMIN |
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R | <SIG>:PMAX | Maximum of <SIG>:PWF | ACCL:L1B:0210:CAV:PMAX |
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R | <SIG>:PWRWF | Signal power waveform | ACCL:L1B:0210:CAV:PWRWF |
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R | <SIG>:PWRMEAN | Mean of <SIG>:PWRWF | ACCL:L1B:0210:CAV:PWRMEAN |
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R | <SIG>:PWRSTD | Standard deviation of <SIG>:PWRWF | ACCL:L1B:0210:CAV:PWRSTD |
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R | <SIG>:PWRRSTD | Standard deviation of <SIG>:PWRWF divided by mean of <SIG>:PWRWF | ACCL:L1B:0210:CAV:PWRRSTD |
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R | <SIG>:PWRMIN | Minimum of <SIG>:PWRWF | ACCL:L1B:0210:CAV:PWRMIN |
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R | <SIG>:PWRMAX | Maximum of <SIG>:PWRWF | ACCL:L1B:0210:CAV:PWRMAX |
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R | <SIG>:IWF | Signal I |
R | CRYOSUM[A,B]_LTCH | ACCL:L1B:0200:CRYOSUMA_LTCH | W | CRYOSUM[A,B]_BYP | ACCL:L1B:0200:CRYOSUMA_BYP | R | CRYOSUM[A,B]_BYP_RBV | ACCL:L1B:0200:CRYOSUMA_BYP_RBV | SRF Interlocks - Per Cryomodule - Tentative | R | CRYOSUM_FLT | Cryo summary status from local Cryo PLC. Current status | ACCL:L1B:0200:CRYOSUM_FLT | R | HELEVEL_FLT | Cryo Helium level status from local Cryo PLC. Current status | ACCL:L1B:0200:HELEVEL_FLT | R | HEPRES_FLT | Cryo Helium pressure status from local Cryo PLC. Current status | ACCL:L1B:0200:HEPRES_FLT | R | CRYOHEARTBEAT_FLT | Cryo PLC heartbeat fault. Generated by RF software when cryo data stops updating or updates too slowly | ACCL:L1B:0200:CRYOPLC_HEARTBEAT | SRF Cavity Characterization and Expert Settings |
R | QLOADED | Loaded Q | ACCL:L1B:0210:QLOADED | R | LDCOEF | Lorentz detuning coefficient | ACCL:L1B:0210:LDCOEF | R | BCOEFM | State space B coefficient magnitude | ACCL:L1B:0210:BCOEFM | R | BCOEFP | State space B coefficient phase | ACCL:L1B:0210:BCOEFP | R | SSA:SLOPE | SSA curve parameter - slope | ACCL:L1B:0210:SSA:SLOPE | R | SSA:PED | SSA curve parameter - pedestal | ACCL:L1B:0210:SSA:PED | R | SSA:MINX | SSA curve parameter - min x | ACCL:L1B:0210:SSA:MINX | R | SSA:MAXR | Maximum drive to SSA, range 0 to 1. (Need better name.) | ACCL:L1B:0210:QLOADED | |
Waveform Signals |
Each SRF cavity has the following waveform signals: Description | PV name, <SIG> in following section | Amplitude Units | Power Units | Phase | Drive (RFS chassis loopback) | DRV | sqrt(W) | W | degrees | Forward Power | FWD | sqrt(W) | W | degrees | Reverse/Reflected Power | REV | sqrt(W) | W | degrees | Cavity Probe | CAV | MV | mW | degrees | DAC (FPGA internal, input to DAC that drives SSA) | DAC | % of full DAC scale | (% of full DAC scale)^2 | degrees | Detune (see below) | DF | Hz | N/A | N/A |
For SRF systems, these PVs are provided for CAV, FWD, REV, DAC (and DRV only during expert diagnostics/troubleshooting.) Example PVs are for CAV. |
R | <SIG>:AWF | Signal amplitude waveform | ACCL:L1B:0210:CAV: |
AWFRAMEAN Mean of <SIG>:AWFQWF | Signal Q waveform | ACCL:L1B:0210:CAV: |
AMEANASTD Standard deviation of <SIG>:AWFFLTAWF | Fault waveform - signal amplitude | ACCL:L1B:0210:CAV: |
ASTDARSTD Standard deviation of <SIG>:AWF divided by mean of <SIG>:AWFFLTPWF | Fault waveform - signal phase | ACCL:L1B:0210:CAV: |
ARSTD FLTPWF |
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Other SRF Waveform Signals: |
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<SIG>AMIN Minimum of <SIG>:AWFWF | Detune frequency waveform. Calculated by software from cavity and forward signals. [Hz] | ACCL:L1B:0210: |
CAVAMIN <SIG>AMAX Maximum of <SIG>AWFCAVAWF R <SIG>PWF Signal phase waveformSTD | Standard deviation of DF:WF | ACCL:L1B:0210: |
CAVPWF R <SIG>PMEAN Mean of <SIG>PWFCAVPMEAN R <SIG>PSTD Standard deviation of <SIG>:PWFMAX | Maximum of DF:WF | ACCL:L1B:0210: |
CAVPSTD R <SIG>PRSTD Standard deviation of <SIG>:PWF divided by mean of <SIG>:PWFWF | Cavity bandwidth waveform. Calculated by software from cavity and forward signals. [Hz] | ACCL:L1B:0210: |
CAVPRSTD <SIG>PMIN Minimum of <SIG>:PWFIWF | P/I Controller Output I waveform. Calculated by software from cavity and DAC signals. [% of full scale, range -1 to 1] | ACCL:L1B:0210: |
CAV:PMINR | <SIG>:PMAX | Maximum of <SIG>:PWF | CTRL:IWF |
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R | CTRL:QWF | P/I Controller Output Q waveform. Calculated by software from cavity and DAC signals. [% of full scale, range -1 to 1] | ACCL:L1B:0210: |
CAVPMAXR <SIG>PWRWF Signal power waveformAWF | P/I Controller Output amplitude waveform. Calculated by software from cavity and DAC signals. [% of full scale, range -1 to 1] | ACCL:L1B:0210: |
CAVPWRWF <SIG>PWRMEAN Mean of <SIG>:PWRWFFLTAWF | Fault waveform - P/I Controller Output amplitude | ACCL:L1B:0210: |
CAVPWRMEAN <SIG>PWRSTD Standard deviation of <SIG>:PWRWFFLTPWF | Fault waveform - P/I Controller Output phase | ACCL:L1B:0210: |
CAVPWRSTD <SIG>:PWRRSTD | Standard deviation of <SIG>:PWRWF divided by mean of <SIG>:PWRWF/W | ACQ_FLT_DELAY | Fault data trigger control. In % of total waveform data duration. 0% = all data is pre-fault, 100% = all data is post-fault | ACCL:L1B:0210: |
CAV:PWRRSTDR | <SIG>:PWRMIN | Minimum of <SIG>:PWRWFACQ_FLT_DELAY |
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Feedback |
R | AMPFB_GAIN_P_RBV | Amplitude feedback proportional gain readback (units not yet determined) | ACCL:L1B:0210: |
CAV:PWRMIN <SIG>:PWRMAX | Maximum of <SIG>:PWRWF/W | AMPFB_GAIN_P | Amplitude feedback proportional gain setting (units not yet determined) | ACCL:L1B:0210: |
CAV:PWRMAXR | <SIG>:IWF | Signal I waveformAMPFB_GAIN_P |
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R | AMPFB_GAIN_I_RBV | Amplitude feedback integral gain readback (units not yet determined) | ACCL:L1B:0210: |
CAV:IWFR | <SIG>:QWF | AMPFB_GAIN_I_RBV |
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R/W | AMPFB_GAIN_I | Amplitude feedback integral gain setting (units not yet determined) |
Signal Q waveformCAV:AWFR | <SIG>:FLTAWF | Fault waveform - signal amplitudeAMPFB_GAIN_I |
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R | PHAFB_GAIN_P_RBV | Phase feedback proportional gain readback (units not yet determined) | ACCL:L1B:0210 |
:CAV:FLTAWF <SIG>:FLTPWF | Fault waveform - signal phase/W | PHAFB_GAIN_P | Phase feedback proportional gain setting (units not yet determined) | ACCL:L1B:0210: |
CAV:FLTPWFOther SRF Waveform Signals: |
R | DF:WF | Detune frequency waveform. Calculated by software from cavity and forward signals. [Hz]AMPFB_GAIN_P |
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R | PHAFB_GAIN_I_RBV | Phase feedback integral gain readback (units not yet determined) | ACCL:L1B:0210: |
DF:WFDF:MEAN | Mean of DF:WF/W | PHAFB_GAIN_I | Phase feedback integral gain setting (units not yet determined) | ACCL:L1B:0210:AMPFB_GAIN_I |
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R | AMPFB_LSUM | Amplitude feedback is at lower limit while feedback is active. 0 if true (alarm state), 1 if false (good state) | ACCL:L1B:0210: |
DF:MEANR | DF:STD | Standard deviation of DF:WFAMPFB_LSUM |
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R | AMPFB_HSUM | Amplitude feedback is at upper limit while feedback is active. 0 if true (alarm state), 1 if false (good state) | ACCL:L1B:0210: |
DF:STD R | DF:MIN | Minimum of DF:WFAMPFB_HSUM |
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R | AMPFB_SUM | Amplitude feedback is at either lower or upper limit while feedback is active. 0 if true (alarm state), 1 if false (good state) | ACCL:L1B:0210: |
DF:MIN DF:MAX | Maximum of DF:WF | ACCL:L1B:0210:DF:MAX | R | BW:WF | Cavity bandwidth waveform. Calculated by software from cavity and forward signals. [Hz]PHAFB_LSUM | Phase feedback is at lower limit while feedback is active. 0 if true (alarm state), 1 if false (good state) | ACCL:L1B:0210: |
BW:WF R | CTRL:IWF | P/I Controller Output I waveform. Calculated by software from cavity and DAC signals. [% of full scale, range -1 to 1]PHAFB_LSUM |
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R | PHAFB_HSUM | Phase feedback is at upper limit while feedback is active. 0 if true (alarm state), 1 if false (good state) | ACCL:L1B:0210: |
CTRL:IWF R | CTRL:QWF | P/I Controller Output Q waveform. Calculated by software from cavity and DAC signals. [% of full scale, range -1 to 1] PHAFB_HSUM |
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R | PHAFB_SUM | Phase feedback is at either lower or upper limit while feedback is active. 0 if true (alarm state), 1 if false (good state) | ACCL:L1B:0210: |
CTRL:QWF R | CTRL:AWF | P/I Controller Output amplitude waveform. Calculated by software from cavity and DAC signals. [% of full scale, range -1 to 1] PHAFB_SUM |
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R | FB_SUM | Amplitude or phase feedback is at either lower or upper limit while RFREADYFORBEAM is active. 0 if true (alarm state), 1 if false (good state). This summary's counts of today's faults, yesterday's faults, total faults, a resettable counter faults. | ACCL:L1B:0210: |
CTRL:AWF R | CTRL:FLTAWF | Fault waveform - P/I Controller Output amplitude | ACCL:L1B:0210:CTRL:FLTAWF | R | CTRL:FLTPWF | Fault waveform - P/I Controller Output phaseFB_SUM |
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R | FB_SUM_CNTT | ACCL:L1B:0210: |
CTRL:FLTPWF/WACQFLTDELAYFault data trigger control. In % of total waveform data duration. 0% = all data is pre-fault, 100% = all data is post-fault | ACQFLTDELAY |
Feedback |
R | AMPFB_GAIN_P_RBV | Amplitude feedback proportional gain readback (units not yet determined) |
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R | FB_SUM_CNT | ACCL:L1B:0210: |
AMPFBGAIN_PRBV/W AMPFBGAINP Amplitude feedback proportional gain setting (units not yet determined) | AMPFB...
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