Note

Ophyd async is considered experimental until the v1.0 release and may change API on minor release numbers before then

ophyd_async.epics.signal

Members

get_supported_values
LimitPair
Limits
PvaSignalBackend
epics_signal_r	Create a SignalR backed by 1 EPICS PV
epics_signal_rw	Create a SignalRW backed by 1 or 2 EPICS PVs
epics_signal_rw_rbv	Create a SignalRW backed by 1 or 2 EPICS PVs, with a suffix on the readback pv
epics_signal_w	Create a SignalW backed by 1 EPICS PVs
epics_signal_x	Create a SignalX backed by 1 EPICS PVs

ophyd_async.epics.signal.epics_signal_r(datatype: type[T], read_pv: str, name: str = '') → SignalR[T]

Create a SignalR backed by 1 EPICS PV

Parameters:

• datatype – Check that the PV is of this type

• read_pv – The PV to read and monitor

ophyd_async.epics.signal.epics_signal_rw(datatype: type[T], read_pv: str, write_pv: str | None = None, name: str = '') → SignalRW[T]

Create a SignalRW backed by 1 or 2 EPICS PVs

Parameters:

• datatype – Check that the PV is of this type

• read_pv – The PV to read and monitor

• write_pv – If given, use this PV to write to, otherwise use read_pv

ophyd_async.epics.signal.epics_signal_rw_rbv(datatype: type[T], write_pv: str, read_suffix: str = '_RBV', name: str = '') → SignalRW[T]

Create a SignalRW backed by 1 or 2 EPICS PVs, with a suffix on the readback pv

Parameters:

• datatype – Check that the PV is of this type

• write_pv – The PV to write to

• read_suffix – Append this suffix to the write pv to create the readback pv

ophyd_async.epics.signal.epics_signal_w(datatype: type[T], write_pv: str, name: str = '') → SignalW[T]

Create a SignalW backed by 1 EPICS PVs

Parameters:

• datatype – Check that the PV is of this type

• write_pv – The PV to write to

ophyd_async.epics.signal.epics_signal_x(write_pv: str, name: str = '') → SignalX

Create a SignalX backed by 1 EPICS PVs

Parameters:

write_pv – The PV to write its initial value to on trigger