Obs Interface

Interface for devices with an observation state.

class CommandedObsStateSignal[source]

Special signal for the commanded observation state.

Ensures that only stable enumerants from ObsState for a commanded observation state are emitted for the signal.

__init__() → None[source]: Initialise the signal.

class ObsInterface[source]

Provides the Tango interface for an SKA device with an Observation State.

_obs_state: Signal[ObsState]

Signal for the observation state of the device.

Write to this signal to report the observation state of the device to Tango clients.

obsState

Observation state attribute of the device.

This should be set by subclasses of this interface by writing to _obs_state.

_commanded_obs_state: CommandedObsStateSignal

Signal for the commanded observation state of the device.

Write to this signal whenever a command is executed which will result in a obs state transition.

commandedObsState

Attribute for the last commanded Observation State of the device.

This should be set by subclasses of this interface by writing to _commanded_obs_state.

_obs_mode: Signal[ObsMode]

Signal for the observation mode of the device.

Write to this signal to report observation mode of the device to Tango clients.

obsMode

Observation mode attribute of the device.

This should be set by subclasses of this interface by writing to _obs_mode.

_config_progress: Signal[int]

Signal for the configuration progress of the device.

Write to this signal to report configuration progress to Tango clients.

configurationProgress

Configuration progress attribute of the device.

This should be set by subclasses of this interface by writing to _config_progress.

_config_delay_expected: Signal[int]

Signal for the configuration delay expected of the device.

Write to this signal to report the expected configuration delay to Tango clients.

configurationDelayExpected

Configuration delay expected attribute of the device.

This should be set by subclasses of this interface by writing to _config_delay_expected.

read_obsState() → ObsState | tuple[ObsState, float, AttrQuality][source]

Read the observation state of the device.

Subclasses can override this to change the behaviour of the obsState attribute.

read_commandedObsState() → ObsState | tuple[ObsState, float, AttrQuality][source]

Read the commanded observation state of the device.

Subclasses can override this to change the behaviour of the commandedObsState attribute.

read_obsMode() → ObsMode | tuple[ObsMode, float, AttrQuality][source]

Read the observation mode of the device.

Subclasses can override this to change the behaviour of the obsMode attribute.

read_configurationProgress() → int | tuple[int, float, AttrQuality][source]

Read the configuration progress of the device.

Subclasses can override this to change the behaviour of the configurationProgress attribute.

read_configurationDelayExpected() → int | tuple[int, float, AttrQuality][source]

Read the expected configuration delay of the device.

Subclasses can override this to change the behaviour of the configurationDelayExpected attribute.