Note

Ophyd async is included on a provisional basis until the v1.0 release and may change API on minor release numbers before then

ophyd_async.core.SoftSignalBackend#

class ophyd_async.core.SoftSignalBackend(datatype: Type[T] | None, initial_value: T | None = None, metadata: SignalMetadata = None)[source]#

Bases: SignalBackend[T]

An backend to a soft Signal, for test signals see MockSignalBackend.

Methods

`connect`	Connection isn't required for soft signals.
`datatype_allowed`
`get_datakey`
`get_reading`
`get_setpoint`	For a soft signal, the setpoint and readback values are the same.
`get_value`
`put`
`set_callback`
`set_value`	Method to bypass asynchronous logic.
`source`

Attributes

datatype

Datatype of the signal value

classmethod datatype_allowed(datatype: Type) → bool[source]#

datatype: Type[T] | None = None#: Datatype of the signal value

source(name: str) → str[source]#

async connect(timeout: float = 10.0) → None[source]#: Connection isn’t required for soft signals.

async put(value: T | None, wait=True, timeout=None)[source]#

set_value(value: T)[source]#: Method to bypass asynchronous logic.

async get_datakey(source: str) → DataKey[source]#

async get_reading() → Reading[source]#

async get_value() → T[source]#

async get_setpoint() → T[source]#: For a soft signal, the setpoint and readback values are the same.

set_callback(callback: Callable[[Reading, T], None] | None) → None[source]#