OPCUA.Library 11.0.2

Client configuration

    public string ApplicationName { get; set; } = "XserverIoT.OPCUAClient";
    public int SessionTimeout { get; set; } = 60000;
    public int OperationTimeout { get; set; } = 60000;
    public int DisconnectTimeout { get; set; } = 10000;
    public int ReconnectTimeout { get; set; } = 10000;
    public int ReadAttempt { get; set; } = 3;
    public int ReadDelay { get; set; } = 1000;

    /// OPCUA server address
    public string ServerAddress { get; set; }
    public string CertificateFilePath { get; set; }

    /// Set UserIdentity Configuration
    public UserIdentity UserIdentityConfiguration { get; set; } = new UserIdentity();

    /// Set ServerEndpoint Configuration
    public ServerEndpoint ServerEndpointConfiguration { get; set; } = new ServerEndpoint();

Read the values of several Nodes

    public async Task<ReadResult> ReadValues (List<OPCReadNode> ReadNodes)

Write the values of several Nodes

    public async Task<WriteResult> WriteValues(List<OPCWriteNode> WriteNodes)

Establishes a connection to the OPC UA server

    public Result Connect()

Closes an activated session and terminates the connection to the server

    public Result Disconnect()

Example

OPCUAClient OPCUAClient = new OPCUAClient();

private async void Button_Click_4(object sender, RoutedEventArgs e)
{
    if (OPCUAClient.Connected == true)
    {
        return;
    }

    var certificateFile = await Package.Current.InstalledLocation.GetFileAsync(@"Assets\Client.Uwp.pfx");

    OPCUAClient.CertificateFilePath = certificateFile.Path;
    OPCUAClient.ServerAddress = "opc.tcp://localhost:53530/OPCUA/SimulationServer";

    var res = OPCUAClient.Connect();
}

private void Button_Click_5(object sender, RoutedEventArgs e)
{
    var res = OPCUAClient.Disconnect();
}

private async void Button_Click(object sender, RoutedEventArgs e)
{
    List<OPCReadNode> OPCNodes = new List<OPCReadNode>();

    OPCReadNode onenode = new OPCReadNode();

    onenode.Name = "Counter";
    onenode.NodeId = "ns=3;s=Counter";

    OPCNodes.Add(onenode);

    var result = await OPCUAClient.ReadValues(OPCNodes);
}

private async void Button_Click_1(object sender, RoutedEventArgs e)
{
    List<OPCWriteNode> OPCNodes = new List<OPCWriteNode>();

    OPCWriteNode onenode = new OPCWriteNode();

    onenode.Name = "Test2";
    onenode.NodeId = "ns=3;s=Test2";
    onenode.Value = (double)DateTime.Now.Second;

    OPCNodes.Add(onenode);

    var result = await OPCUAClient.WriteValues(OPCNodes);
}

Set Authentication

Usernames and Password:

private async void Button_Click_4(object sender, RoutedEventArgs e)
{
    var certificateFile = await Package.Current.InstalledLocation.GetFileAsync(@"Assets\Client.Uwp.pfx");

    OPCUAClient.CertificateFilePath = certificateFile.Path;
    OPCUAClient.ServerAddress = "opc.tcp://localhost:53530/OPCUA/SimulationServer";

    //Set Authentication
    OPCUAClient.UserIdentityConfiguration.UserIdentityType = UserIdentityType.UsernamePassword;
    OPCUAClient.UserIdentityConfiguration.Username = "user";
    OPCUAClient.UserIdentityConfiguration.Password = "user";

    var res = OPCUAClient.Connect();
}

Set Endpoint Configuration

private async void Button_Click(object sender, RoutedEventArgs e)
{
    var certificateFile = await Package.Current.InstalledLocation.GetFileAsync(@"Assets\Client.Uwp.pfx");

    OPCUAClient.CertificateFilePath = certificateFile.Path;
    OPCUAClient.ServerAddress = "opc.tcp://localhost:53530/OPCUA/SimulationServer";

    //Set Authentication
    OPCUAClient.UserIdentityConfiguration.UserIdentityType = UserIdentityType.UsernamePassword;
    OPCUAClient.UserIdentityConfiguration.Username = "user";
    OPCUAClient.UserIdentityConfiguration.Password = "user";

    //Set Endpoint Configuration
    OPCUAClient.ServerEndpointConfiguration.UseHighLevelEndpoint = true;
    OPCUAClient.ServerEndpointConfiguration.UseOnlySecureEndpoints = true;

    EndpointPolicy Policy = new EndpointPolicy();
    Policy.OpcSecurityMode = OPCUA.Library.OpcSecurityMode.None;
    Policy.OpcSecurityAlgorithm = OPCUA.Library.OpcSecurityAlgorithm.Basic256;
    OPCUAClient.ServerEndpointConfiguration.OpcSecurityPolicy = Policy;

    var res = OPCUAClient.Connect();
}

General configuration

private async void Button_Click(object sender, RoutedEventArgs e)
{
    var certificateFile = await Package.Current.InstalledLocation.GetFileAsync(@"Assets\Client.Uwp.pfx");

    OPCUAClient.CertificateFilePath = certificateFile.Path;
    OPCUAClient.ServerAddress = "opc.tcp://localhost:53530/OPCUA/SimulationServer";

    //Set Authentication
    OPCUAClient.UserIdentityConfiguration.UserIdentityType = UserIdentityType.UsernamePassword;
    OPCUAClient.UserIdentityConfiguration.Username = "user";
    OPCUAClient.UserIdentityConfiguration.Password = "user";

    //General Configuration
    OPCUAClient.ApplicationName = "My App";
    OPCUAClient.SessionTimeout = 20000;
    OPCUAClient.OperationTimeout = 30000;
    OPCUAClient.DisconnectTimeout =5000;
    OPCUAClient.ReconnectTimeout = 6000;

    var res = OPCUAClient.Connect();
}