Analyzer Devices - 5.3.2 AnalyserDeviceStateMachineType

5.3.2 AnalyserDeviceStateMachineType

AnalyserDeviceStateMachineTypeis a subtype of FiniteStateMachineType. The states are derived from the ANSI/ISA TR 88.02-2008 Machine and Unit StatesTechnical Report [ISA-88 TR], which in turn were derived from the OMAC PackML tag definition set and the ANSI/ISA 88 Part 1 standard [ISA-88].

AnalyserDeviceStateMachineTypecontains a nested state model that defines the top level states Operating, Local and Maintenance (called Modes in [ISA-88 TR] and OMAC) of a device.

Figure 17- AnalyserDeviceStateMachine

The Powerupstate is where the AnalyserDevicewaits for the completion of the power-up setup. Its sub-states are out of scope of the ADI specification.

The Shutdownstate is where the AnalyserDevicewaits for the completion of the power down sequence. Its sub-states are out of scope of the ADI specification.

5.3.2.1 Type definition: AnalyserDeviceStateMachineType ObjectType

AnalyserDeviceStateMachineType.is formally defined in Table 60.

Table 60– AnalyserDeviceStateMachineType Definition

Attribute	Value
BrowseName	AnalyserDeviceStateMachineType
IsAbstract	False
References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of the FiniteStateMachineTypedefined in [OPC 10000-5]
HasComponent	Object	Powerup		InitialStateType	Mandatory
HasComponent	Object	Operating		StateType	Mandatory
HasComponent	Object	Local		StateType	Mandatory
HasComponent	Object	Maintenance		StateType	Mandatory
HasComponent	Object	Shutdown		StateType	Mandatory

HasComponent	Object	PowerupToOperatingTransition		TransitionType	Mandatory
HasComponent	Object	OperatingToLocalTransition		TransitionType	Mandatory
HasComponent	Object	OperatingToMaintenanceTransition		TransitionType	Mandatory
HasComponent	Object	LocalToOperatingTransition		TransitionType	Mandatory
HasComponent	Object	LocalToMaintenanceTransition		TransitionType	Mandatory
HasComponent	Object	MaintenanceToOperatingTransition		TransitionType	Mandatory
HasComponent	Object	MaintenanceToLocalTransition		TransitionType	Mandatory
HasComponent	Object	OperatingToShutdownTransition		TransitionType	Mandatory
HasComponent	Object	LocalToShutdownTransition		TransitionType	Mandatory
HasComponent	Object	MaintenanceToShutdownTransition		TransitionType	Mandatory

5.3.2.2 AnalyserDeviceStateMachineType States

5.3.2.2.1 Introduction

Table 61specifies the AnalyserStateMachine’sState Objects. These State Objectsare instances of the StateTypedefined in [OPC 10000-5]. Each State is assigned a unique StateNumber value. Subtypes of the AnalyserDeviceStateMachineTypecan add References from any state to a subordinate or nested StateMachine Object to extend theFiniteStateMachine.

See Table 62for a description of the states.

Table 61– AnalyserDeviceStateMachineType States

BrowseName	References	Target BrowseName	Value	Target Type Definition	Notes
States
Powerup	HasProperty	StateNumber	100	PropertyType
	ToTransition	PowerupToOperatingTransition		TransitionType

Operating	HasProperty	StateNumber	200	PropertyType
	FromTransition	PowerupToOperatingTransition		TransitionType
	FromTransition	MaintenanceToOperatingTransition		TransitionType
	FromTransition	LocalToOperatingTransition		TransitionType
	ToTransition	OperatingToLocalTransition		TransitionType
	ToTransition	OperatingToMaintenanceTransition		TransitionType
	ToTransition	OperatingToShutdownTransition		TransitionType

Local	HasProperty	StateNumber	300	PropertyType
	FromTransition	OperatingToLocalTransition		TransitionType
	FromTransition	MaintenanceToLocalTransition		TransitionType
	ToTransition	LocalToOperatingTransition		TransitionType
	ToTransition	LocalToMaintenanceTransition		TransitionType
	ToTransition	LocalToShutdownTransition		TransitionType

Maintenance	HasProperty	StateNumber	400	PropertyType
	FromTransition	OperatingToMaintenanceTransition		TransitionType
	FromTransition	LocalToMaintenanceTransition		TransitionType
	ToTransition	MaintenanceToOperatingTransition		TransitionType
	ToTransition	MaintenanceToLocalTransition		TransitionType
	ToTransition	MaintenanceToShutdownTransition		TransitionType

Shutdown	HasProperty	StateNumber	500	PropertyType
	FromTransition	OperatingToShutdownTransition		TransitionType
	FromTransition	LocalToShutdownTransition		TransitionType
	FromTransition	MaintenanceToShutdownTransition		TransitionType

A standard set of states are defined for analyser devices. These states represent the operational condition of the device. All devices that contain an AnalyserDeviceStateMachineTypemust support this base set. A device may or may not require a Clientaction to cause the state to change, as defined in the state descriptions below.

Table 62– AnalyserDeviceStateMachineType State Description

StateName	Description
Powerup	The AnalyserDevice is in its power-up sequence and cannot perform any other task.
Operating	The AnalyserDevice is in the Operating mode. The ADI Clientuses this mode for normal operation: configuration, control and data collection. In this mode, each child AnalyserChannels are free to accept commands from the ADI Clientand the Parametervalues published in the address space values are expected to be valid. When entering this state, all AnalyserChannels of this AnalyserDevice automatically leave the SlaveMode state and enter their Operating state.
Local	The AnalyserDevice is in the Local mode. This mode is normally used to perform local physical maintenance on the analyser. To enter the Local mode, the operator shall push a button, on the analyser itself. This may be a physical button or a graphical control on the local console screen. To quit the Local mode, the operator shall press the same or another button on the analyser itself. When the analyser is in Local mode, all child AnalyserChannels sit in the SlaveMode state of the AnalyserChannelStateMachine. In this mode, no commands are accepted from the ADI interface and no guarantee is given on the values in the address space.
Maintenance	The AnalyserDevice is in the Maintenance mode. This mode is used to perform remote maintenance on the analyser like firmware upgrade. To enter in Maintenance mode, the operator shall call the GotoMaintenance Methodfrom the ADI Client. To return to the Operating mode, the operator shall call the GotoOperating Methodfrom the ADI Client. When the analyser is in the Maintenance mode, all child AnalyserChannels sit in the SlaveMode state of the AnalyserChannelStateMachine. In this mode, no commands are accepted from the ADI interface for the AnalyserChannels and no guarantee is given on the values in the address space.
Shutdown	The AnalyserDevice is in its power-down sequence and cannot perform any other task.

The set of states defined to describe an AnalyserDevice 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.

5.3.2.2.2 Operating State

The Operating state of the AnalyserDeviceStateMachineTypehas no required sub-states.

5.3.2.2.3 Local State

The Local state of the AnalyserDeviceStateMachineTypehas no required sub-states.

The Local state provides suitably authorized personnel the ability to operate individual subordinate equipment controls (such as accessory logic) within the device under manual control (often pushbutton or embedded HMI). Such controls in this state may be on a "hold-to-run" basis such that removal of the run signal will cause a device to be stopped. The ability to perform specific functions will be dependent upon mechanical constraints and interlocks. Local state may be of particular use for setting up the machine to work.

5.3.2.2.4 Maintenance State

The Maintenance state of the AnalyserDeviceStateMachineTypehas no required sub-states.

The Maintenance state allows suitably authorized personnel the ability to run an individual device independent of other devices that may be in the same production line or lab cell. This would typically be used for faultfinding, device trials or testing operational improvements.

5.3.2.3 AnalyserDeviceStateMachineType Transitions

Transitions are instances of Objectsof the TransitionTypedefined in [OPC 10000-5]which also includes the definitions of the ToState, FromState, HasCause, and HasEffect References used. Table 63specifies the Transitions defined for the AnalyserDeviceStateMachineType. Each Transition is assigned a unique TransitionNumber.

Table 63– AnalyserDeviceStateMachineType Transitions

BrowseName	References	Target BrowseName	Value	Target Type Definition	Notes
Transitions
PowerupToOperatingTransition	HasProperty	TransitionNumber	1	PropertyType
	FromState	Powerup		InitialStateType
	ToState	Operating		StateType
	HasCause	Analyser is powering-up			External cause

OperatingToLocalTransition	HasProperty	TransitionNumber	2	PropertyType
	FromState	Operating		StateType
	ToState	Local		StateType
	HasCause	Pressing Local button on analyser			External cause

OperatingToMaintenanceTransition	HasProperty	TransitionNumber	3	PropertyType
	FromState	Operating		StateType
	ToState	Maintenance		StateType
	HasCause	GotoMaintenance		Method

LocalToOperatingTransition	HasProperty	TransitionNumber	4	PropertyType
	FromState	Local		StateType
	ToState	Operating		StateType
	HasCause	Releasing Local button on analyser			External cause

LocalToMaintenanceTransition	HasProperty	TransitionNumber	5	PropertyType
	FromState	Local		StateType
	ToState	Maintenance		StateType
	HasCause	Releasing Local button on analyser			External cause

MaintenanceToOperatingTransition	HasProperty	TransitionNumber	6	PropertyType
	FromState	Maintenance		StateType
	ToState	Operating		StateType
	HasCause	GotoOperating		Method

MaintenanceToLocalTransition	HasProperty	TransitionNumber	7	PropertyType
	FromState	Maintenance		StateType
	ToState	Local		StateType
	HasCause	Pressing Local button on analyser			External cause

OperatingToShutdownTransition	HasProperty	TransitionNumber	8	PropertyType
	FromState	Operating		StateType
	ToState	Shutdown		StateType
	HasCause	Analyser is powering-down			External cause

LocalToShutdownTransition	HasProperty	TransitionNumber	9	PropertyType
	FromState	Local		StateType
	ToState	Shutdown		StateType
	HasCause	Analyser is powering-down			External cause

MaintenanceToShutdownTransition	HasProperty	TransitionNumber	10	PropertyType
	FromState	Maintenance		StateType
	ToState	Shutdown		StateType
	HasCause	Analyser is powering-down			External cause