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''' |
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https://reference.opcfoundation.org/v104/Core/docs/Part10/ |
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https://reference.opcfoundation.org/v104/Core/docs/Part10/4.2.1/ |
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Basic statemachines described in OPC UA Spec.: |
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StateMachineType |
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FiniteStateMachineType |
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ExclusiveLimitStateMachineType |
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FileTransferStateMachineType |
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ProgramStateMachineType |
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ShelvedStateMachineType |
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Relevant information: |
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Overview - https://reference.opcfoundation.org/v104/Core/docs/Part10/5.2.3/#5.2.3.1 |
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States - https://reference.opcfoundation.org/v104/Core/docs/Part10/5.2.3/#5.2.3.2 |
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Transitions - https://reference.opcfoundation.org/v104/Core/docs/Part10/5.2.3/#5.2.3.3 |
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Events - https://reference.opcfoundation.org/v104/Core/docs/Part10/5.2.5/ |
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''' |
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import asyncio, logging, datetime |
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#FIXME |
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# -change to relativ imports! |
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# -remove unused imports |
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from asyncua import Server, ua, Node |
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from asyncua.common.event_objects import TransitionEvent, ProgramTransitionEvent |
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_logger = logging.getLogger(__name__) |
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class StateMachine(object): |
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''' |
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Implementation of an StateMachineType (most basic type) |
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CurrentState: Mandatory "StateVariableType" |
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LastTransition: Optional "TransitionVariableType" |
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Generates TransitionEvent's |
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''' |
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def __init__(self, server=None, parent=None, idx=None, name=None): |
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if not isinstance(server, Server): |
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raise ValueError |
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if not isinstance(parent, Node): |
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raise ValueError |
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if idx == None: |
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idx = parent.nodeid.NamespaceIndex |
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if name == None: |
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name = "StateMachine" |
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self.locale = "en-US" |
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self._server = server |
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self._parent = parent |
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self._state_machine_node = None |
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self._state_machine_type = ua.NodeId(2299, 0) #StateMachineType |
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self._name = name |
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self._idx = idx |
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self._optionals = False |
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self._current_state_node = None |
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self._current_state_id_node = None |
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self._current_state_name_node = None |
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self._current_state_number_node = None |
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self._last_transition_node = None |
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self._last_transition_id_node = None |
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self._last_transition_name_node = None |
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self._last_transition_number_node = None |
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self._last_transition_transitiontime_node = None |
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self._last_transition_effectivetransitiontime_node = None |
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self._evgen = None |
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self.evtype = TransitionEvent() |
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class State(object): |
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''' |
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Helperclass for States (StateVariableType) |
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https://reference.opcfoundation.org/v104/Core/docs/Part5/B.4.3/ |
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name: type string will be converted automatically to qualifiedname |
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-> Name is a QualifiedName which uniquely identifies the current state within the StateMachineType. |
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id: Id is a name which uniquely identifies the current state within the StateMachineType. A subtype may restrict the DataType. |
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number: Number is an integer which uniquely identifies the current state within the StateMachineType. |
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''' |
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def __init__(self, name, id=0, node=None, issub=False): |
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self.name = name |
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self.id = str(id) |
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self.number = id |
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self.node = node #will be written from statemachine.add_state() or you need to overwrite it if the state is part of xml |
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self.issub = issub #true if it is a substate |
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class Transition(object): |
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''' |
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Helperclass for Transitions (TransitionVariableType) |
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https://reference.opcfoundation.org/v104/Core/docs/Part5/B.4.4/ |
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name: type string will be converted automatically to qualifiedname |
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-> Name is a QualifiedName which uniquely identifies a transition within the StateMachineType. |
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id: Id is a name which uniquely identifies a Transition within the StateMachineType. A subtype may restrict the DataType. |
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number: Number is an integer which uniquely identifies the current state within the StateMachineType. |
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transitiontime: TransitionTime specifies when the transition occurred. |
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effectivetransitiontime: EffectiveTransitionTime specifies the time when the current state or one of its substates was entered. |
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If, for example, a StateA is active and – while active – switches several times between its substates SubA and SubB, |
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then the TransitionTime stays at the point in time where StateA became active whereas the EffectiveTransitionTime changes |
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with each change of a substate. |
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''' |
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def __init__(self, name, id=0, node=None): |
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self.name = name |
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self.id = str(id) |
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self.number = id |
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self._transitiontime = datetime.datetime.utcnow() #will be overwritten from _write_transition() |
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self._effectivetransitiontime = datetime.datetime.utcnow() #will be overwritten from _write_transition() |
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self.node = node #will be written from statemachine.add_state() or you need to overwrite it if the state is part of xml |
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self.issub = issub #true if it is a transition between substates |
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async def install(self, optionals=False): |
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''' |
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setup adressspace |
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''' |
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self._optionals = optionals |
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self._state_machine_node = await self._parent.add_object( |
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self._idx, |
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self._name, |
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objecttype=self._state_machine_type, |
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instantiate_optional=optionals |
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) |
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if self._optionals: |
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#FIXME somehow propertys dont get added if i instantiate with optionals |
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self._last_transition_node = await self._state_machine_node.get_child(["LastTransition"]) |
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self._last_transition_transitiontime_node = await self._last_transition_node.add_property( |
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0, |
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"TransitionTime", |
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ua.Variant(datetime.datetime.utcnow(), varianttype=ua.VariantType.DateTime) |
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) |
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self._last_transition_effectivetransitiontime_node = await self._last_transition_node.add_property( |
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0, |
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"EffectiveTransitionTime", |
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ua.Variant(datetime.datetime.utcnow(), varianttype=ua.VariantType.DateTime) |
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) |
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await self.init(self._state_machine_node) |
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async def init(self, statemachine): |
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''' |
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initialize and get subnodes |
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''' |
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self._current_state_node = await statemachine.get_child(["CurrentState"]) |
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current_state_props = await self._current_state_node.get_properties() |
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for prop in current_state_props: |
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dn = await prop.read_display_name() |
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if dn.Text == "Id": |
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self._current_state_id_node = await self._current_state_node.get_child(["Id"]) |
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elif dn.Text == "Name": |
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self._current_state_name_node = await self._current_state_node.get_child(["Name"]) |
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elif dn.Text == "Number": |
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self._current_state_number_node = await self._current_state_node.get_child(["Number"]) |
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else: |
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_logger.warning(f"{await statemachine.read_browse_name()} CurrentState Unknown propertie: {dn.Text}") |
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if self._optionals: |
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self._last_transition_node = await statemachine.get_child(["LastTransition"]) |
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last_transition_props = await self._last_transition_node.get_properties() |
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for prop in last_transition_props: |
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dn = await prop.read_display_name() |
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if dn.Text == "Id": |
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self._last_transition_id_node = await self._last_transition_node.get_child(["Id"]) |
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elif dn.Text == "Name": |
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self._last_transition_name_node = await self._last_transition_node.get_child(["Name"]) |
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elif dn.Text == "Number": |
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self._last_transition_number_node = await self._last_transition_node.get_child(["Number"]) |
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elif dn.Text == "TransitionTime": |
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self._last_transition_transitiontime_node = await self._last_transition_node.get_child(["TransitionTime"]) |
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elif dn.Text == "EffectiveTransitionTime": |
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self._last_transition_effectivetransitiontime_node = await self._last_transition_node.get_child(["EffectiveTransitionTime"]) |
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else: |
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_logger.warning(f"{await statemachine.read_browse_name()} LastTransition Unknown propertie: {dn.Text}") |
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self._evgen = await self._server.get_event_generator(self.evtype, self._state_machine_node) |
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async def change_state(self, state, transition=None, event_msg=None, severity=500): |
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''' |
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method to change the state of the statemachine |
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state: "self.State" mandatory |
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transition: "self.Transition" optional |
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event_msg: "string/LocalizedText" optional |
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severity: "Int" optional |
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''' |
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await self._write_state(state) |
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if transition: |
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await self._write_transition(transition) |
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if event_msg: |
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if isinstance(event_msg, str): |
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event_msg = ua.LocalizedText(event_msg, self.locale) |
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self._evgen.event.Message = event_msg |
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self._evgen.event.Severity = severity |
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await self._evgen.trigger() |
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async def _write_state(self, state): |
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if not isinstance(state, self.State): |
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raise ValueError |
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await self._current_state_node.write_value(ua.LocalizedText(state.name, self.locale), ua.VariantType.LocalizedText) |
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if state.node: |
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if self._current_state_id_node: |
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await self._current_state_id_node.write_value(state.node.nodeid, ua.VariantType.NodeId) |
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if self._current_state_name_node: |
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await self._current_state_name_node.write_value(state.name, ua.VariantType.QualifiedName) |
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if self._current_state_number_node: |
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await self._current_state_number_node.write_value(state.number, ua.VariantType.UInt32) |
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194
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async def _write_transition(self, transition): |
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''' |
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196
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transition: self.Transition |
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197
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issub: boolean (true if it is a transition between substates) |
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''' |
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199
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if not isinstance(transition, self.Transition): |
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raise ValueError |
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201
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if transition.issub == False: |
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transition._transitiontime = datetime.datetime.utcnow() |
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transition._effectivetransitiontime = datetime.datetime.utcnow() |
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await self._last_transition_node.write_value(ua.LocalizedText(transition.name, self.locale), ua.VariantType.LocalizedText) |
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if self._optionals: |
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if self._last_transition_id_node: |
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await self._last_transition_id_node.write_value(transition.node.nodeid, ua.VariantType.NodeId) |
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if self._last_transition_name_node: |
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await self._last_transition_name_node.write_value(ua.QualifiedName(transition.name, self._idx), ua.VariantType.QualifiedName) |
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if self._last_transition_number_node: |
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await self._last_transition_number_node.write_value(transition.number, ua.VariantType.UInt32) |
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if self._last_transition_transitiontime_node: |
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await self._last_transition_transitiontime_node.write_value(transition._transitiontime, ua.VariantType.DateTime) |
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if self._last_transition_effectivetransitiontime_node: |
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await self._last_transition_effectivetransitiontime_node.write_value(transition._effectivetransitiontime, ua.VariantType.DateTime) |
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217
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async def add_state(self, state, state_type=ua.NodeId(2307, 0), optionals=False): |
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''' |
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this method adds a state object to the statemachines address space |
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state: self.State, |
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InitialStateType: ua.NodeId(2309, 0), |
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StateType: ua.NodeId(2307, 0), |
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ChoiceStateType: ua.NodeId(15109,0), |
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224
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''' |
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225
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if not isinstance(state, self.State): |
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raise ValueError |
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227
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if not state_type in [ua.NodeId(2309, 0),ua.NodeId(2307, 0),ua.NodeId(15109,0)]: |
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228
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# unknown state type! |
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229
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raise ValueError |
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230
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state.node = await self._state_machine_node.add_object( |
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231
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self._idx, |
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232
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state.name, |
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objecttype=state_type, |
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234
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instantiate_optional=optionals |
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235
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) |
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236
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state_number = await state.node.get_child(["StateNumber"]) |
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237
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await state_number.write_value(state.number, ua.VariantType.UInt32) |
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238
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return state.node |
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239
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|
240
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async def add_transition(self, transition, transition_type=ua.NodeId(2310, 0), optionals=False): |
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241
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''' |
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242
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this method adds a transition object to the statemachines address space |
|
243
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transition: self.Transition, |
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244
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transition_type: ua.NodeId(2310, 0), |
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245
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''' |
|
246
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if not isinstance(transition, self.Transition): |
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247
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raise ValueError |
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248
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transition.node = await self._state_machine_node.add_object( |
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249
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self._idx, |
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250
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transition.name, |
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251
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objecttype=transition_type, |
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252
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instantiate_optional=optionals |
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253
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) |
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254
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transition_number = await transition.node.get_child(["TransitionNumber"]) |
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255
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await transition_number.write_value(transition.number, ua.VariantType.UInt32) |
|
256
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return transition.node |
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257
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|
258
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async def remove(self, nodes): |
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259
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|
#FIXME Is it wise to remove a part of a program/statemachine dynamically? at this point i am not sure |
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260
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raise NotImplementedError |
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261
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|
262
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|
class FiniteStateMachine(StateMachine): |
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263
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''' |
|
264
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|
|
Implementation of an FiniteStateMachineType a little more advanced than the basic one |
|
265
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|
|
if you need to know the available states and transition from clientside |
|
266
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|
''' |
|
267
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|
|
def __init__(self, server=None, parent=None, idx=None, name=None): |
|
268
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|
|
super().__init__(server, parent, idx, name) |
|
269
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|
|
if name == None: |
|
270
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|
|
name = "FiniteStateMachine" |
|
271
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|
|
self._state_machine_type = ua.NodeId(2771, 0) |
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272
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|
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self._available_states_node = None |
|
273
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self._available_transitions_node = None |
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274
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|
275
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|
|
async def set_available_states(self, states): |
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276
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if not self._available_states_node: |
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277
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self._available_states_node = await self._state_machine_node.get_child(["AvailableStates"]) |
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278
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if isinstance(states, list): |
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279
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return await self._available_states_node.write_value(states, varianttype=ua.VariantType.NodeId) |
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280
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return ValueError |
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281
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282
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async def set_available_transitions(self, transitions): |
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283
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if self._optionals: |
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284
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if not self._available_transitions_node: |
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285
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self._available_transitions_node = await self._state_machine_node.get_child(["AvailableTransitions"]) |
|
286
|
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if isinstance(transitions, list): |
|
287
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await self._available_transitions_node.write_value(transitions, varianttype=ua.VariantType.NodeId) |
|
288
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return ValueError |
|
289
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290
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async def find_all_states(self): |
|
291
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return NotImplementedError |
|
292
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|
293
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|
async def find_all_transitions(self): |
|
294
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return NotImplementedError |
|
295
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296
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class ExclusiveLimitStateMachine(FiniteStateMachine): |
|
297
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''' |
|
298
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|
NOT IMPLEMENTED "ExclusiveLimitStateMachineType" |
|
299
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''' |
|
300
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def __init__(self, server=None, parent=None, idx=None, name=None): |
|
301
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super().__init__(server, parent, idx, name) |
|
302
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if name == None: |
|
303
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name = "ExclusiveLimitStateMachine" |
|
304
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|
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self._state_machine_type = ua.NodeId(9318, 0) |
|
305
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|
|
raise NotImplementedError |
|
306
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|
307
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class FileTransferStateMachine(FiniteStateMachine): |
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308
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''' |
|
309
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NOT IMPLEMENTED "FileTransferStateMachineType" |
|
310
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''' |
|
311
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def __init__(self, server=None, parent=None, idx=None, name=None): |
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312
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super().__init__(server, parent, idx, name) |
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313
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if name == None: |
|
314
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name = "FileTransferStateMachine" |
|
315
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|
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self._state_machine_type = ua.NodeId(15803, 0) |
|
316
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|
|
raise NotImplementedError |
|
317
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|
318
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class ProgramStateMachine(FiniteStateMachine): |
|
319
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''' |
|
320
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|
https://reference.opcfoundation.org/v104/Core/docs/Part10/4.2.3/ |
|
321
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|
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Implementation of an ProgramStateMachine its quite a complex statemachine with the |
|
322
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optional possibility to make the statchange from clientside via opcua-methods |
|
323
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|
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''' |
|
324
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|
|
def __init__(self, server=None, parent=None, idx=None, name=None): |
|
325
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|
|
super().__init__(server, parent, idx, name) |
|
326
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|
|
if name == None: |
|
327
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|
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name = "ProgramStateMachine" |
|
328
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|
|
self._state_machine_type = ua.NodeId(2391, 0) |
|
329
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|
|
self.evtype = ProgramTransitionEvent() |
|
330
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|
|
|
|
331
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|
# 5.2.3.2 ProgramStateMachineType states |
|
332
|
|
|
self._ready_state_node = None #State node |
|
333
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|
|
self._halted_state_node = None #State node |
|
334
|
|
|
self._running_state_node = None #State node |
|
335
|
|
|
self._suspended_state_node = None #State node |
|
336
|
|
|
|
|
337
|
|
|
# 5.2.3.3 ProgramStateMachineType transitions |
|
338
|
|
|
self._halted_to_ready_node = None #Transition node |
|
339
|
|
|
self._ready_to_running_node = None #Transition node |
|
340
|
|
|
self._running_to_halted_node = None #Transition node |
|
341
|
|
|
self._running_to_ready_node = None #Transition node |
|
342
|
|
|
self._running_to_suspended_node = None #Transition node |
|
343
|
|
|
self._suspended_to_running_node = None #Transition node |
|
344
|
|
|
self._suspended_to_halted_node = None #Transition node |
|
345
|
|
|
self._suspended_to_ready_node = None #Transition node |
|
346
|
|
|
self._ready_to_halted_node = None #Transition node |
|
347
|
|
|
|
|
348
|
|
|
# 5.2.3.2 ProgramStateMachineType states |
|
349
|
|
|
self._halted_state_id_node = None #State property (StateNumber value 11) |
|
350
|
|
|
self._ready_state_id_node = None #State property (StateNumber value 12) |
|
351
|
|
|
self._running_state_id_node = None #State property (StateNumber value 13) |
|
352
|
|
|
self._suspended_state_id_node = None #State property (StateNumber value 14) |
|
353
|
|
|
|
|
354
|
|
|
# 5.2.3.3 ProgramStateMachineType transitions |
|
355
|
|
|
self._halted_to_ready_id_node = None #Transition property (TransitionNumber value 1) |
|
356
|
|
|
self._ready_to_running_id_node = None #Transition property (TransitionNumber value 2) |
|
357
|
|
|
self._running_to_halted_id_node = None #Transition property (TransitionNumber value 3) |
|
358
|
|
|
self._running_to_ready_id_node = None #Transition property (TransitionNumber value 4) |
|
359
|
|
|
self._running_to_suspended_id_node = None #Transition property (TransitionNumber value 5) |
|
360
|
|
|
self._suspended_to_running_id_node = None #Transition property (TransitionNumber value 6) |
|
361
|
|
|
self._suspended_to_halted_id_node = None #Transition property (TransitionNumber value 7) |
|
362
|
|
|
self._suspended_to_ready_id_node = None #Transition property (TransitionNumber value 8) |
|
363
|
|
|
self._ready_to_halted_id_node = None #Transition property (TransitionNumber value 9) |
|
364
|
|
|
|
|
365
|
|
|
# 4.2.7 Program Control Methods (https://reference.opcfoundation.org/v104/Core/docs/Part10/4.2.7/) |
|
366
|
|
|
self._halt_method_node = None #uamethod node |
|
367
|
|
|
self._reset_method_node = None #uamethod node |
|
368
|
|
|
self._resume_method_node = None #uamethod node |
|
369
|
|
|
self._start_method_node = None #uamethod node |
|
370
|
|
|
self._suspend_method_node = None #uamethod node |
|
371
|
|
|
|
|
372
|
|
|
#can be overwritten if you want a different language |
|
373
|
|
|
self.localizedtext_ready = ua.LocalizedText("Ready", "en-US") |
|
374
|
|
|
self.localizedtext_running = ua.LocalizedText("Running", "en-US") |
|
375
|
|
|
self.localizedtext_halted = ua.LocalizedText("Halted", "en-US") |
|
376
|
|
|
self.localizedtext_suspended= ua.LocalizedText("Suspended", "en-US") |
|
377
|
|
|
self.localizedtext_halted_to_ready = ua.LocalizedText("HaltedToReady", "en-US") |
|
378
|
|
|
self.localizedtext_ready_to_running = ua.LocalizedText("ReadyToRunning", "en-US") |
|
379
|
|
|
self.localizedtext_running_to_halted = ua.LocalizedText("RunningToHalted", "en-US") |
|
380
|
|
|
self.localizedtext_running_to_ready = ua.LocalizedText("RunningToReady", "en-US") |
|
381
|
|
|
self.localizedtext_running_to_suspended = ua.LocalizedText("RunningToSuspended", "en-US") |
|
382
|
|
|
self.localizedtext_suspended_to_running = ua.LocalizedText("SuspendedToRunning", "en-US") |
|
383
|
|
|
self.localizedtext_suspended_to_halted = ua.LocalizedText("SuspendedToHalted", "en-US") |
|
384
|
|
|
self.localizedtext_suspended_to_ready = ua.LocalizedText("SuspendedToReady", "en-US") |
|
385
|
|
|
self.localizedtext_ready_to_halted = ua.LocalizedText("ReadyToHalted", "en-US") |
|
386
|
|
|
|
|
387
|
|
|
async def install(self, optionals=False): |
|
388
|
|
|
''' |
|
389
|
|
|
setup adressspace and initialize |
|
390
|
|
|
''' |
|
391
|
|
|
self._optionals = optionals |
|
392
|
|
|
self._state_machine_node = await self._parent.add_object( |
|
393
|
|
|
self._idx, |
|
394
|
|
|
self._name, |
|
395
|
|
|
objecttype=self._state_machine_type, |
|
396
|
|
|
instantiate_optional=optionals |
|
397
|
|
|
) |
|
398
|
|
|
#FIXME get children and map children |
|
399
|
|
|
|
|
400
|
|
|
#Transition |
|
401
|
|
|
async def HaltedToReady(self): |
|
402
|
|
|
await self._current_state_node.write_value( |
|
403
|
|
|
self.localizedtext_ready, |
|
404
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
405
|
|
|
) |
|
406
|
|
|
await self._current_state_id_node.write_value( |
|
407
|
|
|
self._ready_state.nodeid, |
|
408
|
|
|
varianttype=ua.VariantType.NodeId |
|
409
|
|
|
) |
|
410
|
|
|
await self._last_transition_node.write_value( |
|
411
|
|
|
self.localizedtext_halted_to_ready, |
|
412
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
413
|
|
|
) |
|
414
|
|
|
await self._last_transition_id_node.write_value( |
|
415
|
|
|
self._halted_to_ready.nodeid, |
|
416
|
|
|
varianttype=ua.VariantType.NodeId |
|
417
|
|
|
) |
|
418
|
|
|
#FIXME |
|
419
|
|
|
# trigger ProgramTransitionEventType and |
|
420
|
|
|
# AuditUpdateMethodEvents/AuditProgramTransitionEventType (https://reference.opcfoundation.org/v104/Core/docs/Part10/4.2.2/) |
|
421
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.Good) |
|
422
|
|
|
|
|
423
|
|
|
#Transition |
|
424
|
|
|
async def ReadyToRunning(self): |
|
425
|
|
|
await self._current_state_node.write_value( |
|
426
|
|
|
self.localizedtext_running, |
|
427
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
428
|
|
|
) |
|
429
|
|
|
await self._current_state_id_node.write_value( |
|
430
|
|
|
self._running_state.nodeid, |
|
431
|
|
|
varianttype=ua.VariantType.NodeId |
|
432
|
|
|
) |
|
433
|
|
|
await self._last_transition_node.write_value( |
|
434
|
|
|
self.localizedtext_ready_to_running, |
|
435
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
436
|
|
|
) |
|
437
|
|
|
await self._last_transition_id_node.write_value( |
|
438
|
|
|
self._ready_to_running.nodeid, |
|
439
|
|
|
varianttype=ua.VariantType.NodeId |
|
440
|
|
|
) |
|
441
|
|
|
#FIXME |
|
442
|
|
|
# trigger ProgramTransitionEventType and |
|
443
|
|
|
# AuditUpdateMethodEvents/AuditProgramTransitionEventType (https://reference.opcfoundation.org/v104/Core/docs/Part10/4.2.2/) |
|
444
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.Good) |
|
445
|
|
|
|
|
446
|
|
|
#Transition |
|
447
|
|
|
async def RunningToHalted(self): |
|
448
|
|
|
await self._current_state_node.write_value( |
|
449
|
|
|
self.localizedtext_halted, |
|
450
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
451
|
|
|
) |
|
452
|
|
|
await self._current_state_id_node.write_value( |
|
453
|
|
|
self._halted_state.nodeid, |
|
454
|
|
|
varianttype=ua.VariantType.NodeId |
|
455
|
|
|
) |
|
456
|
|
|
await self._last_transition_node.write_value( |
|
457
|
|
|
self.localizedtext_running_to_halted, |
|
458
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
459
|
|
|
) |
|
460
|
|
|
await self._last_transition_id_node.write_value( |
|
461
|
|
|
self._running_to_halted.nodeid, |
|
462
|
|
|
varianttype=ua.VariantType.NodeId |
|
463
|
|
|
) |
|
464
|
|
|
#FIXME |
|
465
|
|
|
# trigger ProgramTransitionEventType and |
|
466
|
|
|
# AuditUpdateMethodEvents/AuditProgramTransitionEventType (https://reference.opcfoundation.org/v104/Core/docs/Part10/4.2.2/) |
|
467
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.Good) |
|
468
|
|
|
|
|
469
|
|
|
#Transition |
|
470
|
|
|
async def RunningToReady(self): |
|
471
|
|
|
await self._current_state_node.write_value( |
|
472
|
|
|
self.localizedtext_ready, |
|
473
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
474
|
|
|
) |
|
475
|
|
|
await self._current_state_id_node.write_value( |
|
476
|
|
|
self._ready_state.nodeid, |
|
477
|
|
|
varianttype=ua.VariantType.NodeId |
|
478
|
|
|
) |
|
479
|
|
|
await self._last_transition_node.write_value( |
|
480
|
|
|
self.localizedtext_running_to_ready, |
|
481
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
482
|
|
|
) |
|
483
|
|
|
await self._last_transition_id_node.write_value( |
|
484
|
|
|
self._running_to_ready.nodeid, |
|
485
|
|
|
varianttype=ua.VariantType.NodeId |
|
486
|
|
|
) |
|
487
|
|
|
#FIXME |
|
488
|
|
|
# trigger ProgramTransitionEventType and |
|
489
|
|
|
# AuditUpdateMethodEvents/AuditProgramTransitionEventType (https://reference.opcfoundation.org/v104/Core/docs/Part10/4.2.2/) |
|
490
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.Good) |
|
491
|
|
|
|
|
492
|
|
|
#Transition |
|
493
|
|
|
async def RunningToSuspended(self): |
|
494
|
|
|
await self._current_state_node.write_value( |
|
495
|
|
|
self.localizedtext_suspended, |
|
496
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
497
|
|
|
) |
|
498
|
|
|
await self._current_state_id_node.write_value( |
|
499
|
|
|
self._suspended_state.nodeid, |
|
500
|
|
|
varianttype=ua.VariantType.NodeId |
|
501
|
|
|
) |
|
502
|
|
|
await self._last_transition_node.write_value( |
|
503
|
|
|
self.localizedtext_running_to_suspended, |
|
504
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
505
|
|
|
) |
|
506
|
|
|
await self._last_transition_id_node.write_value( |
|
507
|
|
|
self._running_to_suspended.nodeid, |
|
508
|
|
|
varianttype=ua.VariantType.NodeId |
|
509
|
|
|
) |
|
510
|
|
|
#FIXME |
|
511
|
|
|
# trigger ProgramTransitionEventType and |
|
512
|
|
|
# AuditUpdateMethodEvents/AuditProgramTransitionEventType (https://reference.opcfoundation.org/v104/Core/docs/Part10/4.2.2/) |
|
513
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.Good) |
|
514
|
|
|
|
|
515
|
|
|
#Transition |
|
516
|
|
|
async def SuspendedToRunning(self): |
|
517
|
|
|
await self._current_state_node.write_value( |
|
518
|
|
|
self.localizedtext_running, |
|
519
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
520
|
|
|
) |
|
521
|
|
|
await self._current_state_id_node.write_value( |
|
522
|
|
|
self._running_state.nodeid, |
|
523
|
|
|
varianttype=ua.VariantType.NodeId |
|
524
|
|
|
) |
|
525
|
|
|
await self._last_transition_node.write_value( |
|
526
|
|
|
self.localizedtext_suspended_to_running, |
|
527
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
528
|
|
|
) |
|
529
|
|
|
await self._last_transition_id_node.write_value( |
|
530
|
|
|
self._suspended_to_running.nodeid, |
|
531
|
|
|
varianttype=ua.VariantType.NodeId |
|
532
|
|
|
) |
|
533
|
|
|
#FIXME |
|
534
|
|
|
# trigger ProgramTransitionEventType and |
|
535
|
|
|
# AuditUpdateMethodEvents/AuditProgramTransitionEventType (https://reference.opcfoundation.org/v104/Core/docs/Part10/4.2.2/) |
|
536
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.Good) |
|
537
|
|
|
|
|
538
|
|
|
#Transition |
|
539
|
|
|
async def SuspendedToHalted(self): |
|
540
|
|
|
await self._current_state_node.write_value( |
|
541
|
|
|
self.localizedtext_halted, |
|
542
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
543
|
|
|
) |
|
544
|
|
|
await self._current_state_id_node.write_value( |
|
545
|
|
|
self._halted_state.nodeid, |
|
546
|
|
|
varianttype=ua.VariantType.NodeId |
|
547
|
|
|
) |
|
548
|
|
|
await self._last_transition_node.write_value( |
|
549
|
|
|
self.localizedtext_suspended_to_halted, |
|
550
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
551
|
|
|
) |
|
552
|
|
|
await self._last_transition_id_node.write_value( |
|
553
|
|
|
self._suspended_to_halted.nodeid, |
|
554
|
|
|
varianttype=ua.VariantType.NodeId |
|
555
|
|
|
) |
|
556
|
|
|
#FIXME |
|
557
|
|
|
# trigger ProgramTransitionEventType and |
|
558
|
|
|
# AuditUpdateMethodEvents/AuditProgramTransitionEventType (https://reference.opcfoundation.org/v104/Core/docs/Part10/4.2.2/) |
|
559
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.Good) |
|
560
|
|
|
|
|
561
|
|
|
#Transition |
|
562
|
|
|
async def SuspendedToReady(self): |
|
563
|
|
|
await self._current_state_node.write_value( |
|
564
|
|
|
self.localizedtext_ready, |
|
565
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
566
|
|
|
) |
|
567
|
|
|
await self._current_state_id_node.write_value( |
|
568
|
|
|
self._ready_state.nodeid, |
|
569
|
|
|
varianttype=ua.VariantType.NodeId |
|
570
|
|
|
) |
|
571
|
|
|
await self._last_transition_node.write_value( |
|
572
|
|
|
self.localizedtext_suspended_to_ready, |
|
573
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
574
|
|
|
) |
|
575
|
|
|
await self._last_transition_id_node.write_value( |
|
576
|
|
|
self._suspended_to_ready.nodeid, |
|
577
|
|
|
varianttype=ua.VariantType.NodeId |
|
578
|
|
|
) |
|
579
|
|
|
#FIXME |
|
580
|
|
|
# trigger ProgramTransitionEventType and |
|
581
|
|
|
# AuditUpdateMethodEvents/AuditProgramTransitionEventType (https://reference.opcfoundation.org/v104/Core/docs/Part10/4.2.2/) |
|
582
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.Good) |
|
583
|
|
|
|
|
584
|
|
|
#Transition |
|
585
|
|
|
async def ReadyToHalted(self): |
|
586
|
|
|
await self._current_state_node.write_value( |
|
587
|
|
|
self.localizedtext_halted, |
|
588
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
589
|
|
|
) |
|
590
|
|
|
await self._current_state_id_node.write_value( |
|
591
|
|
|
self._halted_state.nodeid, |
|
592
|
|
|
varianttype=ua.VariantType.NodeId |
|
593
|
|
|
) |
|
594
|
|
|
await self._last_transition_node.write_value( |
|
595
|
|
|
self.localizedtext_ready_to_halted, |
|
596
|
|
|
varianttype=ua.VariantType.LocalizedText |
|
597
|
|
|
) |
|
598
|
|
|
await self._last_transition_id_node.write_value( |
|
599
|
|
|
self._ready_to_halted.nodeid, |
|
600
|
|
|
varianttype=ua.VariantType.NodeId |
|
601
|
|
|
) |
|
602
|
|
|
#FIXME |
|
603
|
|
|
# trigger ProgramTransitionEventType and |
|
604
|
|
|
# AuditUpdateMethodEvents/AuditProgramTransitionEventType (https://reference.opcfoundation.org/v104/Core/docs/Part10/4.2.2/) |
|
605
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.Good) |
|
606
|
|
|
|
|
607
|
|
|
#method to be linked to uamethod |
|
608
|
|
|
async def Start(self): |
|
609
|
|
|
if await self._current_state_node.read_value() == self.localizedtext_ready: |
|
610
|
|
|
return await ReadyToRunning() |
|
|
|
|
|
|
611
|
|
|
else: |
|
612
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.BadNotExecutable) |
|
613
|
|
|
|
|
614
|
|
|
#method to be linked to uamethod |
|
615
|
|
|
async def Suspend(self): |
|
616
|
|
|
if await self._current_state_node.read_value() == self.localizedtext_running: |
|
617
|
|
|
return await RunningToSuspended() |
|
|
|
|
|
|
618
|
|
|
else: |
|
619
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.BadNotExecutable) |
|
620
|
|
|
|
|
621
|
|
|
#method to be linked to uamethod |
|
622
|
|
|
async def Resume(self): |
|
623
|
|
|
if await self._current_state_node.read_value() == self.localizedtext_suspended: |
|
624
|
|
|
return await SuspendedToRunning() |
|
|
|
|
|
|
625
|
|
|
else: |
|
626
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.BadNotExecutable) |
|
627
|
|
|
|
|
628
|
|
|
#method to be linked to uamethod |
|
629
|
|
|
async def Halt(self): |
|
630
|
|
|
val = await self._current_state_node.read_value() |
|
631
|
|
|
if val == self.localizedtext_ready: |
|
632
|
|
|
return await ReadyToHalted() |
|
|
|
|
|
|
633
|
|
|
elif val == self.localizedtext_running: |
|
634
|
|
|
return await RunningToHalted() |
|
|
|
|
|
|
635
|
|
|
elif val == self.localizedtext_suspended: |
|
636
|
|
|
return await SuspendedToHalted() |
|
|
|
|
|
|
637
|
|
|
else: |
|
638
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.BadNotExecutable) |
|
639
|
|
|
|
|
640
|
|
|
#method to be linked to uamethod |
|
641
|
|
|
async def Reset(self): |
|
642
|
|
|
if await self._current_state_node.read_value() == self.localizedtext_halted: |
|
643
|
|
|
return await HaltedToReady() |
|
|
|
|
|
|
644
|
|
|
else: |
|
645
|
|
|
return ua.StatusCode(ua.status_codes.StatusCodes.BadNotExecutable) |
|
646
|
|
|
|
|
647
|
|
|
class ShelvedStateMachine(FiniteStateMachine): |
|
648
|
|
|
''' |
|
649
|
|
|
NOT IMPLEMENTED "ShelvedStateMachineType" |
|
650
|
|
|
''' |
|
651
|
|
|
def __init__(self, server=None, parent=None, idx=None, name=None): |
|
652
|
|
|
super().__init__(server, parent, idx, name) |
|
653
|
|
|
if name == None: |
|
654
|
|
|
name = "ShelvedStateMachine" |
|
655
|
|
|
self._state_machine_type = ua.NodeId(2929, 0) |
|
656
|
|
|
raise NotImplementedError |
|
657
|
|
|
|
FreeOpcUa /
opcua-asyncio
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