Note

Ophyd.v2 is included on a provisional basis until the v2.0 release and may change API on minor release numbers before then

ophyd.v2.epics.ChannelSim

class ophyd.v2.epics.ChannelSim(pv: str, datatype: Type[T])

Bases: Channel[T]

Methods

connect	Connect to PV
get_descriptor	Metadata like source, dtype, shape, precision, units
get_reading	The current value, timestamp and severity
get_value	The current value
monitor_reading_value	Observe changes to the current value, timestamp and severity.
put	Put a value to the PV, if wait then wait for completion
set_value	Set the simulated value, and set timestamp to now

Attributes

source

Like ca://PV_PREFIX:SIGNAL, or None if not set

async connect()

Connect to PV

Raises:

NotConnected if cancelled

async get_descriptor() → Descriptor

Metadata like source, dtype, shape, precision, units

async get_reading() → Reading

The current value, timestamp and severity

async get_value() → T

The current value

monitor_reading_value(callback: Callable[[Reading, T], None]) → Monitor

Observe changes to the current value, timestamp and severity.

async put(value: T, wait=True)

Put a value to the PV, if wait then wait for completion

set_value(value: T) → None

Set the simulated value, and set timestamp to now

property source: str

Like ca://PV_PREFIX:SIGNAL, or None if not set