Analyzer Devices - 5.3.5 AccessorySlotStateMachine

The AccessorySlotStateMachine describes the behaviour of an AccessorySlot when a physical accessory is inserted or removed.

Figure 21 illustrates components of the AccessorySlotStateMachineType.

Figure 21 – AccessorySlotStateMachineTypeMachineType

If the accessory is not hot swappable or the accessory is already installed when the AnalyserDevice is powered-on the Inserting state becomes transient but remains present.

5.3.5.2 Type definition: AccessorySlotStateMachineType ObjectType

AccessorySlotStateMachineType is formally defined in Table 80.

Table 80 – AccessorySlotStateMachineType Definition

Attribute	Value
	Includes all Attributes specified for the FiniteStateMachineType
BrowseName	AccessorySlotStateMachineType
IsAbstract	False

References	NodeClass	BrowseName	Data Type	TypeDefinition	Modelling Rule
Subtype of the FiniteStateMachineType defined in [OPC 10000-5]
HasComponent	Object	Powerup		InitialStateType	Mandatory
HasComponent	Object	Empty		StateType	Mandatory
HasComponent	Object	Inserting		StateType	Mandatory
HasComponent	Object	Installed		StateType	Mandatory
HasComponent	Object	Removing		StateType	Mandatory
HasComponent	Object	Shutdown		StateType	Mandatory

HasComponent	Object	PowerupToEmptyTransition		TransitionType	Mandatory
HasComponent	Object	EmptyToInsertingTransition		TransitionType	Mandatory
HasComponent	Object	InsertingTransition		TransitionType	Mandatory
HasComponent	Object	InsertingToRemovingTransition		TransitionType	Mandatory
HasComponent	Object	InsertingToInstalledTransition		TransitionType	Mandatory
HasComponent	Object	InsttalledToRemovingTransition		TransitionType	Mandatory
HasComponent	Object	RemovingTransition		TransitionType	Mandatory
HasComponent	Object	RemovingToEmptyTransition		TransitionType	Mandatory
HasComponent	Object	EmptyToShutdownTransition		TransitionType	Mandatory
HasComponent	Object	InsertingToShutdownTransition		TransitionType	Mandatory
HasComponent	Object	InstalledToShutdownTransition		TransitionType	Mandatory
HasComponent	Object	RemovingToShutdownTransition		TransitionType	Mandatory

This specification does not define any Methods, which cause transitions in the AccessorySlotStateMachineType. Transitions occur as a result of two external causes:

Accessory insertion
Accessory removal

5.3.5.3 AccessorySlotStateMachineType States

Table 82 specifies the AccessorySlotStateMachine’s State Objects. These State Objects are instances of the StateType defined in [OPC 10000-5]. Each State is assigned a unique StateNumber value. Subtypes of the AccessorySlotStateMachineType can add References from any state to a subordinate or nested StateMachine Object to extend the FiniteStateMachine.

A standard set of states are defined for AccessorySlots. These states represent the operational condition of the AccessorySlot. All AccessorySlots must support this base set. See Table 81 for the descriptions of the states.

Table 81 – AccessorySlotStateMachineType State Descriptions

StateName	Description
Powerup	The AccessorySlot is in its power-up sequence and cannot perform any other task.
Empty	This represents an AccessorySlot where no Accessory is installed.
Inserting	This represents an AccessorySlot when an Accessory is being inserted and initializing.
Installed	This represents an AccessorySlot where an Accessory is installed and ready to use
Empty	This represents an AccessorySlot where no Accessory is installed.
Shutdown	The AccessorySlot is in its power-down sequence and cannot perform any other task.

The set of states defined to describe an AccessorySlot can be expanded. Sub-states can be defined for the base states to provide more resolution to the process and to describe the cause and effects of additional stimuli and transitions. See Table 82 for the definitions of the states.

Table 82 – AccessorySlotStateMachineType States

BrowseName	References	Target BrowseName	Value	Target TypeDefinition	Notes
States
Powerup	HasProperty	StateNumber	100	PropertyType
	ToTransition	PowerupToEmptyTransition		TransitionType

Empty	HasProperty	StateNumber	200	PropertyType
	FromTransition	PowerupToEmptyTransition		TransitionType
	FromTransition	RemovingToEmptyTransition		TransitionType
	ToTransition	EmptyToInsertingTransition		TransitionType
	ToTransition	EmptyToShutdownTransition		TransitionType

Inserting	HasProperty	StateNumber	300	PropertyType
	FromTransition	EmptyToInsertingTransition		TransitionType
	ToTransition	InsertingToInstalledTransition		TransitionType
	ToTransition	InsertingToRemovingTransition		TransitionType
	ToTransition	InsertingToShutdownTransition		TransitionType

Installed	HasProperty	StateNumber	400	PropertyType
	FromTransition	InsertingToInstalledTransition		TransitionType
	ToTransition	InstalledToRemovingTransition		TransitionType
	ToTransition	InstalledToShutdownTransition		TransitionType

Removing	HasProperty	StateNumber	500	PropertyType
	FromTransition	InsertingToRemovingTransition		TransitionType
	FromTransition	InstalledToRemovingTransition		TransitionType
	ToTransition	RemovingToEmptyTransition		TransitionType
	ToTransition	RemovingToShutdownTransition		TransitionType

Shutdown	HasProperty	StateNumber	600	PropertyType
	FromTransition	EmptyToShutdownTransition		TransitionType
	FromTransition	InsertingToShutdownTransition		TransitionType
	FromTransition	InstalledToShutdownTransition		TransitionType
	FromTransition	RemovingToShutdownTransition		TransitionType

Table 83 specifies the Transitions defined for the AccessorySlotStateMachineType. Each Transition is assigned a unique TransitionNumber.

Table 83 – AccessorySlotStateMachineType Transitions

BrowseName	References	Target BrowseName	Value	Target Type Definition	Notes
Transitions
PowerupToEmptyTransition	HasProperty	TransitionNumber	1	PropertyType
	FromState	Powerup		InitialStateType
	ToState	Empty		StateType

EmptyToInsertingTransition	HasProperty	TransitionNumber	2	PropertyType
	FromState	Empty		StateType
	ToState	Inserting		StateType

InsertingTransition	HasProperty	TransitionNumber	3	PropertyType
	FromState	Inserting		StateType
	ToState	Inserting		StateType

InsertingToRemovingTransition	HasProperty	TransitionNumber	4	PropertyType
	FromState	Inserting		StateType
	ToState	Removing		StateType

InsertingToInstalledTransition	HasProperty	TransitionNumber	5	PropertyType
	FromState	Inserting		StateType
	ToState	Installed		StateType

InstalledToRemovingTransition	HasProperty	TransitionNumber	6	PropertyType
	FromState	Installed		StateType
	ToState	Removing		StateType

RemovingTransition	HasProperty	TransitionNumber	7	PropertyType
	FromState	Removing		StateType
	ToState	Removing		StateType

RemovingToEmptyTransition	HasProperty	TransitionNumber	8	PropertyType
	FromState	Removing		StateType
	ToState	Empty		StateType

EmptyToShutdownTransition	HasProperty	TransitionNumber	9	PropertyType
	FromState	Empty		StateType
	ToState	Shutdown		StateType

InsertingToShutdownTransition	HasProperty	TransitionNumber	10	PropertyType
	FromState	Inserting		StateType
	ToState	Shutdown		StateType

InstalledToShutdownTransition	HasProperty	TransitionNumber	11	PropertyType
	FromState	Installed		StateType
	ToState	Shutdown		StateType

RemovingToShutdownTransition	HasProperty	TransitionNumber	12	PropertyType
	FromState	Removing		StateType
	ToState	Shutdown		StateType