atef.procedure.ComparisonToTarget

class atef.procedure.ComparisonToTarget(name: 'Optional[str]' = None, device: 'Optional[str]' = None, attr: 'Optional[str]' = None, pv: 'Optional[str]' = None, comparison: 'Optional[Comparison]' = None)[source]

Attributes:

attr
comparison
device
name
pv

Methods

to_signal([signal_cache])

Return the signal described by this Target.

Methods

__init__(name: str | None = None, device: str | None = None, attr: str | None = None, pv: str | None = None, comparison: Comparison | None = None) → None

to_signal(signal_cache: _SignalCache | None = None) → Signal | None

Return the signal described by this Target. First attempts to use the device + attr information to look up the signal in happi, falling back to the raw PV.

Returns:

ophyd.Signal: the signal described by this Target

Attributes

attr: str | None = None

comparison: Comparison | None = None: the comparison to apply to the target

device: str | None = None: device name and attr

name: str | None = None: name of target

pv: str | None = None: EPICS PV