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.epics.motion.Motor

class ophyd_async.epics.motion.Motor(prefix: str, name='')

Bases: StandardReadable, Movable, Stoppable, Flyable, Preparable

Device that moves a motor record

Methods

add_children_as_readables	Context manager to wrap adding Devices
add_readables	Add the given devices to the lists of known Devices
children
complete	Mark as complete once motor reaches completed position.
connect	Connect self and all child Devices.
describe
describe_configuration
kickoff	Begin moving motor from prepared position to final position.
prepare	Calculate required velocity and run-up distance, then if motor limits aren't breached, move to start position minus run-up distance
read
read_configuration
set
set_name
set_readable_signals	param read: Signals to make up read()
stage
stop
unstage

Attributes

hints
log
name	Return the name of the Device
parent	The parent Device if it exists

set_name(name: str)

prepare(value: FlyMotorInfo)

Calculate required velocity and run-up distance, then if motor limits aren’t breached, move to start position minus run-up distance

kickoff()

Begin moving motor from prepared position to final position.

complete() → WatchableAsyncStatus

Mark as complete once motor reaches completed position.

set(new_position: float, timeout: float | None | ~typing.Type[~ophyd_async.core.utils.CalculateTimeout] = <class 'ophyd_async.core.utils.CalculateTimeout'>)

async stop(success=False)

add_children_as_readables(wrapper: Callable[[AsyncReadable | AsyncConfigurable | AsyncStageable | HasHints], AsyncReadable | AsyncConfigurable | AsyncStageable | HasHints] | Type[ConfigSignal] | Type[HintedSignal] | None = None) → Generator[None, None, None]

Context manager to wrap adding Devices

Add Devices to this class instance inside the Context Manager to automatically add them to the correct fields, based on the Device’s interfaces.

The provided wrapper class will be applied to all Devices and can be used to specify their behaviour.

Parameters:

wrapper – Wrapper class to apply to all Devices created inside the context manager.

See also

add_readables(), ConfigSignal, HintedSignal, HintedSignal.uncached()

add_readables(devices: Sequence[Device], wrapper: Callable[[AsyncReadable | AsyncConfigurable | AsyncStageable | HasHints], AsyncReadable | AsyncConfigurable | AsyncStageable | HasHints] | Type[ConfigSignal] | Type[HintedSignal] | None = None) → None

Add the given devices to the lists of known Devices

Add the provided Devices to the relevant fields, based on the Signal’s interfaces.

The provided wrapper class will be applied to all Devices and can be used to specify their behaviour.

Parameters:

• devices – The devices to be added

• wrapper – Wrapper class to apply to all Devices created inside the context manager.

See also

add_children_as_readables(), ConfigSignal, HintedSignal, HintedSignal.uncached()

children() → Iterator[Tuple[str, Device]]

async connect(mock: bool = False, timeout: float = 10.0, force_reconnect: bool = False)

Connect self and all child Devices.

Contains a timeout that gets propagated to child.connect methods.

Parameters:

• mock – If True then use MockSignalBackend for all Signals

• timeout – Time to wait before failing with a TimeoutError.

async describe() → Dict[str, DataKey]

async describe_configuration() → Dict[str, DataKey]

property hints: Hints

property log

property name: str

Return the name of the Device

parent: 'Device' | None = None

The parent Device if it exists

async read() → Dict[str, Reading]

async read_configuration() → Dict[str, Reading]

set_readable_signals(read: Sequence[SignalR] = (), config: Sequence[SignalR] = (), read_uncached: Sequence[SignalR] = ())

Parameters:

• read – Signals to make up read()

• conf – Signals to make up read_configuration()

• read_uncached – Signals to make up read() that won’t be cached

stage() → None

unstage() → None