Reference

Read and write values

Concept

Read and write values

Type	Description
OpcAttribute	Identifies the different attributes which define the characteristics and additional metadata of a node.
OpcAttributeValue<T>	Represents the immutable value of an attribute.
OpcDataVariableNode	Provides a node to represent complex data structures expose their information as complex data types, as well as components in the address space.
OpcMonitoredItem	Provides information about a node and its attribute being monitored by a dedicated OpcSession.
OpcMonitoredItemEventArgs	Provides the event data for the MonitoredItemCreated, MonitoredItemDeleted and MonitoredItemModified event.
OpcNodeAccessEventArgs	Provides the event data for the events BeforeRead, AfterRead, BeforeWrite and AfterWrite.
OpcNodeAccessToken	Represents the access to one attribute of a node of an OpcNodeManager requested by a read or write operation of a client (see Read and Write).
OpcNodeManager	Provides an abstract base class used to organize and maintain the address space or only a part of it.
OpcReadAttributeValueCallback<T>	Represents the method that will read the value of a node attribute.
OpcReadAttributeValueContext	Provides node sensitive information and services about the system which belong to the current situation (process, thread, session, node, etc.) used for reading the value of a node attribute.
OpcReadVariableValueCallback	Represents the method that will read the value of a variable node.
OpcReadVariableValueContext	Provides variable node sensitive information and services about the system which belong to the current situation (process, thread, session, variable node, etc.) used for reading the value of a variable node.
OpcResult	Provides information indicating and describing the outcome of an operation.
OpcServer	Represents an OPC UA server which provides the address space defined by its NodeManagers to its clients.
OpcText	Represents a human readable string value optionally associated with a Culture and localization relevant information.
OpcVariableNode	Defines a node to use to represent values which may be simple or complex.
OpcVariableValue<T>	Represents the immutable value of a variable.
OpcWriteAttributeValueCallback<T>	Represents the method that will write the value of a node attribute.
OpcWriteAttributeValueContext	Provides node sensitive information and services about the system which belong to the current situation (process, thread, session, node, etc.) used for writing the value of a node attribute.
OpcWriteVariableValueCallback	Represents the method that will write the value of a variable node.
OpcWriteVariableValueContext	Provides variable node sensitive information and services about the system which belong to the current situation (process, thread, session, variable node, etc.) used for writing the value of a variable node.