EpicsAttribute

class EpicsAttribute(name, parent, storeCallback=None)

Bases: taurus.core.taurusattribute.TaurusAttribute

A TaurusAttribute that gives access to an Epics Process Variable.

See also

taurus.core.epics

Warning

In most cases this class should not be instantiated directly. Instead it should be done via the EpicsFactory.getAttribute()

decode(obj)

decode_epics_evt(evt)

Decodes an epics event (a callback keywords dict) into the expected taurus representation

decode_pv(pv)

Decodes an epics pv into the expected taurus representation

encode(value)

encodes the value passed to the write method into a representation that can be written in epics

factory()

getDisplayValue(cache=True)

classmethod getNameValidator()

getWritable(cache=True)

isBoolean()

isNumeric()

isReadOnly(cache=True)

isReadWrite(cache=True)

isState()

isUsingEvents()

isWritable(cache=True)

isWrite(cache=True)

onEpicsEvent(**kw)

callback for PV changes

poll()

read(cache=True)

returns the value of the attribute.

Parameters:cache (:class:~`bool`) – If True (default), the last calculated value will be returned. If False, the referenced values will be re- read and the transformation string will be re-evaluated Returns:attribute value

write(value, with_read=True)