This screen is used to manage the Tune Phase Locked Loop functionality. For this to work the tune PLL NCO must be driven to the bunches to be measured, and the tune PLL detector must be configured to measure the same bunches. Then once the appropriate phase has been identified as set as the target phase, the frequency of the NCO will be driven to keep the measured phase.
The PVs here are divided into a number of groups. All PVs are prefixed with $(device):$(axis).
NCO
This group includes the readback waveform at the top.
| Name | PV | Description |
|---|---|---|
| Tune Following Frequency | :PLL:NCO:OFFSETWF | This waveform records the complete history of the Tune PLL offset frequency |
| Offset FIFO readout overrun | :PLL:NCO:FIFO_OVF | |
| Reset FIFO | :PLL:NCO:RESET_FIFO_S | |
| Freq | :PLL:NCO:FREQ_S | |
| :PLL:NCO:FREQ | ||
| Gain | :PLL:NCO:GAIN_S | |
| :PLL:NCO:ENABLE_S | ||
| Tune | :PLL:NCO:TUNE | |
| Offset | :PLL:NCO:OFFSET | |
| Mean | :PLL:NCO:MEAN_OFFSET |