pcdsdevices.gauge.MKS937AController

class pcdsdevices.gauge.MKS937AController(prefix='', *, name, kind=None, read_attrs=None, configuration_attrs=None, parent=None, **kwargs)

Class for MKS937A gauge controllers accessed via serial.

Ophyd Device Components

Attribute	Class	Suffix	Docs	Kind	Notes
unit	EpicsSignal	:UNIT		omitted	Inherited from GCT
cal	EpicsSignal	:CAL		omitted	Inherited from GCT
version	EpicsSignalRO	:VERSION_RBV		omitted	Inherited from GCT
pstatenout	EpicsSignal	:PSTATENOUT		omitted
pstatspout	EpicsSignal	:PSTATSPOUT		omitted
freq	EpicsSignal	:FREQ		omitted
gauges	EpicsSignalRO	:GAUGES_RBV		omitted
modcc	EpicsSignalRO	:MODCC_RBV		omitted
moda	EpicsSignalRO	:MODA_RBV		omitted
modb	EpicsSignalRO	:MODB_RBV		omitted
com_des	EpicsSignal	:COM_DES		omitted
com	EpicsSignal	:COM		omitted
delay	EpicsSignal	:DELAY		omitted
front	EpicsSignal	:FRONT		omitted

Methods

configure(d: Dict[str, Any]) → Tuple[Dict[str, Any], Dict[str, Any]]

Configure the device for something during a run

This default implementation allows the user to change any of the configuration_attrs. Subclasses might override this to perform additional input validation, cleanup, etc.

Parameters:

d (dict) – The configuration dictionary. To specify the order that the changes should be made, use an OrderedDict.

Returns:

• (old, new) tuple of dictionaries

• Where old and new are pre- and post-configure configuration states.

describe() → OrderedDictType[str, Dict[str, Any]]

Provide schema and meta-data for read().

This keys in the OrderedDict this method returns must match the keys in the OrderedDict return by read().

This provides schema related information, (ex shape, dtype), the source (ex PV name), and if available, units, limits, precision etc.

Returns:

data_keys (OrderedDict) – The keys must be strings and the values must be dict-like with the event_model.event_descriptor.data_key schema.

get(**kwargs)

Get the value of all components in the device

Keyword arguments are passed onto each signal.get(). Components beginning with an underscore will not be included.

read() → OrderedDictType[str, Dict[str, Any]]

Read data from the device.

This method is expected to be as instantaneous as possible, with any substantial acquisition time taken care of in trigger().

The OrderedDict returned by this method must have identical keys (in the same order) as the OrderedDict returned by describe().

By convention, the first key in the return is the ‘primary’ key and maybe used by heuristics in bluesky.

The values in the ordered dictionary must be dict (-likes) with the keys {'value', 'timestamp'}. The 'value' may have any type, the timestamp must be a float UNIX epoch timestamp in UTC.

Returns:

data (OrderedDict) – The keys must be strings and the values must be dict-like with the keys {'value', 'timestamp'}

read_configuration() → OrderedDictType[str, Dict[str, Any]]

Dictionary mapping names to value dicts with keys: value, timestamp

To control which fields are included, change the Component kinds on the device, or modify the configuration_attrs list.

stop(*, success=False)

Stop the Device and all (instantiated) subdevices

summary()

trigger() → StatusBase

Trigger the device and return status object.

This method is responsible for implementing ‘trigger’ or ‘acquire’ functionality of this device.

If there is an appreciable time between triggering the device and it being able to be read (via the read() method) then this method is also responsible for arranging that the StatusBase object returned by this method is notified when the device is ready to be read.

If there is no delay between triggering and being readable, then this method must return a StatusBase object which is already completed.

Returns:

status (StatusBase) – StatusBase object which will be marked as complete when the device is ready to be read.

Attributes

configuration_attrs

connected

hints

kind

subscriptions: ClassVar[FrozenSet[str]] = frozenset({'acq_done'})