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.SimSignalBackend

class ophyd_async.core.SimSignalBackend(datatype: Type[T] | None, initial_value: T | None = None)

Bases: SignalBackend[T]

An simulated backend to a Signal, created with Signal.connect(sim=True)

Methods

connect
get_datakey
get_reading
get_setpoint	For a simulated backend, the setpoint and readback values are the same.
get_value
put
set_callback
source

Attributes

datatype

Datatype of the signal value

datatype: Type[T] | None = None

Datatype of the signal value

source(name: str) → str

async connect(timeout: float = 10.0) → None

async put(value: T | None, wait=True, timeout=None)

async get_datakey(source: str) → DataKey

async get_reading() → Reading

async get_value() → T

async get_setpoint() → T

For a simulated backend, the setpoint and readback values are the same.

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