pcdsdevices.lxe._ScaledUnitConversionDerivedSignal
- class pcdsdevices.lxe._ScaledUnitConversionDerivedSignal(derived_from, *, derived_units: str, original_units: Optional[str] = None, user_offset: Optional[numbers.Real] = 0, limits: Optional[Tuple[numbers.Real, numbers.Real]] = None, **kwargs)
Methods
- describe()
Description based on the original signal description
- forward(value)
Compute derived signal value -> original signal value
- inverse(value)
Compute original signal value -> derived signal value
- read()
Put the status of the signal into a simple dictionary format for data acquisition
- Returns
dict
- read_configuration()
Dictionary mapping names to value dicts with keys: value, timestamp
- set(value, *, timeout=None, settle_time=None)
Set is like
put, but is here for bluesky compatibility- Returns
st (Status) – This status object will be finished upon return in the case of basic soft Signals
- trigger()
Call that is used by bluesky prior to read()
Attributes
- SUB_META = 'meta'
- connected
Mirrors the connection state of the original signal
- derived_from
Signal that this one is derived from
- high_limit
The high, inclusive control limit for the Signal
- hints
Field hints for plotting
- kind
- limits
Defaults to limits from the original signal (low, high).
Limit values may be reversed such that
low <= value <= highafter performing the calculation.Limits may also be overridden here without affecting the original signal.
- low_limit
The low, inclusive control limit for the Signal
- metadata
A copy of the metadata dictionary associated with the signal
- metadata_keys
Metadata keys that will be passed along on value subscriptions
- read_access
Can the signal be read?
- scale = -1
- timestamp
Timestamp of the readback value
- tolerance
The absolute tolerance associated with the value.
- user_offset
A user-specified offset in derived, user-facing units.
- value
The signal’s value
- write_access
Can the signal be written to?