IEasyDAClient Interface

Allows simple access to OPC Data Access servers.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<ComVisibleAttribute(False)>
<ExceptionContractAnnotationAttribute(True)>
<ExceptionContractVerificationAttribute(True)>
<InterfaceCompositorAttribute(OpcLabs.EasyOpc.DataAccess.Implementation.EasyDAClientCompositor)>
Public Interface IEasyDAClient 
   Inherits System.IServiceProvider

'Usage
 
Dim instance As IEasyDAClient

[ComVisible(false)]
[ExceptionContractAnnotation(true)]
[ExceptionContractVerification(true)]
[InterfaceCompositor(OpcLabs.EasyOpc.DataAccess.Implementation.EasyDAClientCompositor)]
public interface IEasyDAClient : System.IServiceProvider

[ComVisible(false)]
[ExceptionContractAnnotation(true)]
[ExceptionContractVerification(true)]
[InterfaceCompositor(OpcLabs.EasyOpc.DataAccess.Implementation.EasyDAClientCompositor)]
public interface class IEasyDAClient : public System.IServiceProvider

Remarks

Defines the interface for interacting with OPC DA servers. This interface provides methods for reading, writing, subscribing to, and browsing OPC DA items. It abstracts the complexities of the OPC DA protocol, offering a simpler way to access and manipulate OPC DA server data.

Data Access deals with the representation and use of automation data in OPC Servers. This chapter gives you guidance in how to implement the common tasks that are needed when dealing with OPC Data Access server from the client side. You achieve these tasks by calling methods on the EasyDAClient or the EasyUAClient object.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

Reference

IEasyDAClient Members
OpcLabs.EasyOpc.DataAccess Namespace

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