realvirtual.OPCUA_Interface Class Reference

OPC UA client interface for connecting to OPC UA servers used in industrial automation. More...

Inheritance diagram for realvirtual.OPCUA_Interface:

Public Member Functions
bool	Connect ()
	Connects to the OPCUA Server.
OPCUA_Node	GetOPCUANode (string nodeid)
	Gets an OPCUA_Node with the NodeID in all the Childrens of the Interface.
void	ImportNodes ()
	Imports all OPCUANodes under TopNodeId and creates GameObjects.
void	EditorImportNodes ()
void	ImportNodes (string nodeid)
	Imports all nodes under one TopNodeID.
OPCUANodeSubscription	Subscribe (string nodeid, NodeUpdateDelegate del)
	Subscribes to an OPCUA node, delegate function gets called when node value is updated on OPCUA server.
object	ReadNodeValue (OPCUA_Node node)
	Reads a Node value and returns it as object.
object	ReadNodeValue (string nodeid)
	Reads a Node value based on its id and returns it as object.
object	ReadNodeValue (string nodeid, ref string status)
	Reads a Node value based on its id and returns it as object, a status reference is passed.
bool	WriteNodeValue (string nodeid, object value)
	Writes a value to an OPCUA node with its nodeid.
bool	WriteNodeValue (OPCUA_Node node, object value)
	Writes a value to an OPCUA node with its node object.
bool	WriteNodeValue (string nodeid, object value, ref string status)
	Writes a value to an OPCUA node with its node id and a status variable reference.
void	UnSubscribe (OPCUANodeSubscription subscription)
void	Disconnect ()
	Disconnects from the OPCUA server.

Public Attributes
string	ServerIP
int	ServerPort
SecurityPolicy	SecurityPolicy
string	Path
int	SessionTimeoutMs
string	TopNodeId
bool	DebugMode
bool	IsConnected
bool	IsReconnecting
string	ApplicationName
string	ApplicationURN
string	ProductURI
string	ClientPrivateCertificate
string	ClientPublicCertificate
string	UserName
string	Password
SignatureAlgorithm	PasswordSignatureAlgorithm
bool	SetDisconnectedOnReadError
int	ReconnectTime
int	MaxNumberOfNodesPerSubscription
float	SubscriptionPublishingIntervall
int	MaxNotificationsPerPublish
List< string >	RegexWriteNodes
bool	AutomaticallyInputOnWriteSignals
bool	AutomaticallySubscribeOnImport
int	NumberSubsriptions
int	NumberSubscribingNodes
int	CurrentNodeInSubscription
uint	CurrentSubscriptionID
uint	CurrentClientHandle
UnityEvent	EventOnConnected
UnityEvent	EventOnDisconnected

Detailed Description

OPC UA client interface for connecting to OPC UA servers used in industrial automation.

Provides secure communication with industrial equipment and control systems through the OPC Unified Architecture protocol. Supports multiple security policies, certificate-based authentication, and automatic reconnection. This interface enables reading and writing process data from/to OPC UA servers like KEPServerEX, Siemens WinCC OA, or embedded OPC UA servers in PLCs. Configure the server connection parameters and security settings to establish communication with your OPC UA server.

Member Function Documentation

Connect()

bool realvirtual.OPCUA_Interface.Connect

(

)

Connects to the OPCUA Server.

Disconnect()

void realvirtual.OPCUA_Interface.Disconnect

(

)

Disconnects from the OPCUA server.

GetOPCUANode()

OPCUA_Node realvirtual.OPCUA_Interface.GetOPCUANode

(

string

nodeid

)

Gets an OPCUA_Node with the NodeID in all the Childrens of the Interface.

ImportNodes() [1/2]

void realvirtual.OPCUA_Interface.ImportNodes

(

)

Imports all OPCUANodes under TopNodeId and creates GameObjects.

If GameObject with NodeID is already existing the GameObject will be updated. Does not deletes any Nodes. If Realvirtual Framework is existent (Compiler Switch REALVIRTUAL) also Realvirtual PLCInputs and PLCOutputs are created or updated or all nodes with suitable data types.

ImportNodes() [2/2]

void realvirtual.OPCUA_Interface.ImportNodes

(

string

nodeid

)

Imports all nodes under one TopNodeID.

Folder

Variable

ReadNodeValue() [1/3]

object realvirtual.OPCUA_Interface.ReadNodeValue

(

OPCUA_Node

node

)

Reads a Node value and returns it as object.

ReadNodeValue() [2/3]

object realvirtual.OPCUA_Interface.ReadNodeValue

(

string

nodeid

)

Reads a Node value based on its id and returns it as object.

ReadNodeValue() [3/3]

object realvirtual.OPCUA_Interface.ReadNodeValue	(	string	nodeid,
		ref string	status
	)

Reads a Node value based on its id and returns it as object, a status reference is passed.

Subscribe()

OPCUANodeSubscription realvirtual.OPCUA_Interface.Subscribe	(	string	nodeid,
		NodeUpdateDelegate	del
	)

Subscribes to an OPCUA node, delegate function gets called when node value is updated on OPCUA server.

WriteNodeValue() [1/3]

bool realvirtual.OPCUA_Interface.WriteNodeValue	(	OPCUA_Node	node,
		object	value
	)

Writes a value to an OPCUA node with its node object.

WriteNodeValue() [2/3]

bool realvirtual.OPCUA_Interface.WriteNodeValue	(	string	nodeid,
		object	value
	)

Writes a value to an OPCUA node with its nodeid.

WriteNodeValue() [3/3]

bool realvirtual.OPCUA_Interface.WriteNodeValue	(	string	nodeid,
		object	value,
		ref string	status
	)

Writes a value to an OPCUA node with its node id and a status variable reference.