ophyd.areadetector.base.EpicsSignalWithRBV¶

class ophyd.areadetector.base.EpicsSignalWithRBV(prefix, **kwargs)¶

__init__(prefix, **kwargs)¶

Methods

`__init__`(prefix, **kwargs)
`add_instantiation_callback`(callback[, ...])	Register a callback which will receive each OphydObject instance.
`check_value`(value)	Check if the value is within the setpoint PV's control limits
`clear_sub`(cb[, event_type])	Remove a subscription, given the original callback function
`describe`()	Return the description as a dictionary
`describe_configuration`()	Provide schema & meta-data for ~BlueskyInterface.read_configuration
`destroy`()	Disconnect the Signal from the underlying control layer; destroy it
`get`(*[, as_string, timeout, ...])	Get the readback value through an explicit call to EPICS.
`get_setpoint`(*[, as_string, timeout, ...])	Get the setpoint value (if setpoint PV and readback PV differ)
`put`(value[, force, connection_timeout, ...])	Using channel access, set the write PV to value.
`read`()	Put the status of the signal into a simple dictionary format for data acquisition
`read_configuration`()	Dictionary mapping names to value dicts with keys: value, timestamp
`set`(value, *[, timeout, settle_time])	Set the value of the Signal and return a Status object.
`set_default_timeout`(**kwargs)
`set_defaults`(*[, timeout, ...])	Set class-wide defaults for EPICS CA communications
`subscribe`(callback[, event_type, run])	Subscribe to events this event_type generates.
`trigger`()	Call that is used by bluesky prior to read()
`unsubscribe`(cid)	Remove a subscription
`unsubscribe_all`()
`wait_for_connection`([timeout])	Wait for the underlying signals to initialize or connect

Attributes

`SUB_META`
`SUB_SETPOINT`
`SUB_SETPOINT_META`
`SUB_VALUE`
`alarm_severity`	PV alarm severity
`alarm_status`	PV status
`as_string`	Attempt to cast the EPICS PV value to a string by default
`attr_name`
`connected`	Is the signal connected to its associated hardware, and ready to use?
`connection_timeout`
`dotted_name`	Return the dotted name
`enum_strs`	List of strings if PV is an enum type
`event_types`	Events that can be subscribed to via obj.subscribe
`high_limit`	The high, inclusive control limit for the Signal
`hints`	Field hints for plotting
`kind`
`limits`	The PV control limits (low, high), such that low <= value <= high
`low_limit`	The low, inclusive control limit for the Signal
`metadata`	A copy of the metadata dictionary associated with the signal
`metadata_keys`	Metadata keys that will be passed along on value subscriptions
`name`	name of the device
`parent`	The parent of the ophyd object.
`precision`	The precision of the read PV, as reported by EPICS
`put_complete`	Use put completion when writing the value
`pvname`	The readback PV name
`read_access`	Can the signal be read?
`report`	A report on the object.
`root`	Walk parents to find ultimate ancestor (parent's parent...).
`setpoint`	The setpoint PV value
`setpoint_alarm_severity`	Setpoint PV alarm severity
`setpoint_alarm_status`	Setpoint PV status
`setpoint_pvname`	The setpoint PV name
`setpoint_ts`	Timestamp of setpoint PV, according to EPICS
`subscriptions`
`timeout`
`timestamp`	Timestamp of readback PV, according to EPICS
`tolerance`	The tolerance of the write PV, as reported by EPICS
`use_limits`	Check value against limits prior to sending to EPICS
`value`	The signal's value
`write_access`	Can the signal be written to?
`write_timeout`