# ophyd.signal¶

Classes

 ArrayAttributeSignal(attr, *[, name, …]) An AttributeSignal which is cast to an ndarray on get AttributeSignal(attr, *[, name, parent, …]) Signal derived from a Python object instance’s attribute DerivedSignal(derived_from, *[, …]) A signal which is derived from another one EpicsSignal(read_pv[, write_pv, …]) An EPICS signal, comprised of either one or two EPICS PVs EpicsSignalBase(read_pv, *[, string, …]) A read-only EpicsSignal – that is, one with no write_pv EpicsSignalRO(read_pv, *[, string, name]) A read-only EpicsSignal – that is, one with no write_pv Signal(*, name[, value, timestamp, parent, …]) A signal, which can have a read-write or read-only value. SignalRO(*args, **kwargs)

Exceptions

 ConnectionTimeoutError ReadTimeoutError