OpcLabs.EasyOpc.UA Namespace (OpcLabs.EasyOpcUA)

This namespace contains classes that facilitate easy work with OPC Unified Architecture (OPC-UA). It also contains the most important extension classes.

Classes

	Class	Description
	EasyUAClientCore	The core part of the EasyUAClient object.
	EasyUAClientManagementCore	The core part of the EasyUAClientManagement object.
	EasyUAClientSelector	Describes how to select the EasyUAClientCore object.
	EasyUAEngineException	An exception specific to the EasyUAClientCore component.
	EasyUASpecializedClient	Base class for specialized OPC UA clients.
	EasyUAUriStrings	Contains URI strings used by EasyUAClientCore and OpcLabs.EasyOpc.UA.PubSub.EasyUASubscriberCore.
	IEasyUAClientExtension	Contains extension methods to the IEasyUAClient interface.
	StringUANodeIdDictionary	This is a dictionary where the key is a string, and the value is an OPC UA node ID.
	UAAttributeData	A class that stores the value of an attribute, together with status code and timestamps.
	UAAttributeField	A field referring an attribute.
	UAAttributeFieldCollection	A collection of OPC UA attribute fields.
	UABrowseParameters	Specifies which nodes will be returned by browsing the OPC server's address space.
	UACallServiceException	An exception thrown when a UA defined error occurs in the Call operation.
	UADataChangeFilter	Defines the conditions under which a data change notification should be reported.
	UADataValue	A class that stores the value, together with status code and timestamps.
	UAEndpointDescriptor	Contains data defining a connection to the OPC-UA Server (mainly, its URL string).
	UAEndpointDescriptorCollection	A collection of OPC UA endpoint descriptors.
	UAEndpointDescriptorUANodeIdDictionary	This is a dictionary where the key is an OPC UA endpoint descriptor, and the value is an OPC UA node ID.
	UAEventData	Contains event notification information.
	UAEventFilter	Defines the conditions under which an event notification should be reported.
	UAEventFilterBuilder	The builder for event filter.
	UAEventNotifiers	Flags that can be set for the EventNotifier attribute.
	UAExtensionObject	An object used to wrap OPC UA complex data types.
	UAFieldResultDictionary	This is a dictionary where the key is an OPC UA attribute field, and the value is a value result of that field.
	UAIndexRange	An index range. Determines a continuous span of elements for a single dimension of an array.
	UAIndexRangeList	List of index ranges. Can be used to identify the whole array, a single element of a structure or an array, or a single range of indexes for arrays.
	UAInvalidReferenceException	An exception generated when OPC UA node that does not exist or is invalid for the expected usage has been referenced.
	UAKeyValueDictionary	A dictionary where the key is an OPC UA qualified name, and the value can be any value valid in OPC UA.
	UAKeyValuePair	Provides an OPC UA key value pair.
	UAMethodOutputException	The exception that is thrown when an OPC UA method result (output argument) is not valid.
	UAMonitoringParameters	Contains monitoring parameters (such as the sampling interval, and optional data change or event filter).
	UANodeDescriptor	Contains information necessary to identify a node in OPC UA address space.
	UANodeIdUAApplicationElementDictionary	This is a dictionary where the key is an OPC UA node ID, and the value is an OPC UA application element.
	UAReadParameters	Contains parameters for OPC-UA read operations, such as the maximum age of the value.
	UAResultException	The exception that is thrown when an OPC UA result (return value or an argument) was not expected for the requested operation.
	UAServiceException	An exception thrown when a UA defined error occurs.
	UAServiceResult	The service result combines the status code and diagnostic information.
	UAStatusCode	A status code that describes the result of a service or operation.
	UAStatusCodeException	An exception generated when the OPC-UA status code is not as expected.
	UASubscriptionParameters	Contains subscription parameters (such as the publishing interval).
	UATimeZoneData	Defines the local time that may or may not take daylight saving time into account.
	UAType	Contains classes that facilitate work with OPC-UA types.
	UAUtilities	Contains static members that facilitate work with types related to OPC Unified Architecture.
	UAValueRanks	Contains standard OPC-UA value rank values. The value rank indicates whether the Value Attribute of the OPC-UA Variable is an array and how many dimensions the array has.

Interfaces

	Interface	Description
	IEasyUAClient	Allows simple access to OPC Unified Architecture servers.
	IEasyUAClientSettings	Provides access to settings for IEasyUAClient objects.
	IEasyUASpecializedClient	Base interface for specialized OPC UA client objects.

Delegates

	Delegate	Description
	EasyUADataChangeNotificationEventHandler	Represents the method that will handle an event raised for every significant data change in a subscribed OPC monitored item.
	EasyUAEventNotificationEventHandler	Represents the method that will handle an event raised for every event notification generated by a subscribed OPC monitored item.
	EasyUAServerConditionChangedEventHandler	Represents the method that will handle an event raised for a change in the condition of an OPC server.

Enumerations

	Enumeration	Description
	UAAccessLevels	Indicates how the Value of a Variable can be accessed (read/write) and if it contains current and/or historic data.
	UAAttributeId	Id of an attribute in OPC UA address space.
	UABrowseDirections	The directions of the references to return.
	UABuiltInType	Enumeration of OPC UA built-in types.
	UACodeBits	The code bits of the status code (UAStatusCode).
	UADataChangeTrigger	Specifies the conditions under which a data change notification should be reported.
	UADeadbandType	A value that defines the Deadband type and behavior.
	UAExtensionObjectType	The types of encodings that may be used with an OPC UA extension object.
	UAInfoType	The type of information contained in the info bits of status code (UAStatusCode).
	UALimitInfo	Flags that are set to indicate the limit status of the value.
	UASeverity	Defines severity codes.

Reference

OpcLabs.EasyOpcUA Assembly