/// <summary>
/// Invokes the method Robot1Multiply.
/// </summary>
public async void Robot1Multiply()
{
try
{
// Call the method, passing the input arguments in a Variant[].
var response = await UaTcpSessionClient.FromModel(this).CallAsync(new CallRequest
{
MethodsToCall = new[]
{
new CallMethodRequest
{
ObjectId = NodeId.Parse("ns=2;s=Robot1"),
MethodId = NodeId.Parse("ns=2;s=Robot1_Multiply"),
InputArguments = new Variant[] { this.InputA, this.InputB }
}
}
});
// When the method returns, save the output argument.
this.Result = (double)response.Results[0].OutputArguments[0];
}
catch (Exception ex)
{
Debug.WriteLine("Error calling Robot1Multiply method: {0}", ex);
}
}
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
global::Xamarin.Forms.Forms.Init(this, bundle);
// Setup a logger.
this.loggerFactory = new LoggerFactory();
this.loggerFactory.AddDebug(LogLevel.Trace);
this.logger = this.loggerFactory.CreateLogger <MainActivity>();
try
{
// Create the session client for the app.
this.session = new UaTcpSessionClient(
new ApplicationDescription()
{
ApplicationName = "Workstation.MobileHmi",
ApplicationUri = $"urn:{System.Net.Dns.GetHostName()}:Workstation.MobileHmi",
ApplicationType = ApplicationType.Client
},
new DirectoryStore(
Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.LocalApplicationData), "pki"),
loggerFactory: loggerFactory),
this.ProvideUserIdentity,
this.discoveryUrl,
this.loggerFactory);
this.LoadApplication(new App(this.session));
}
catch (Exception ex)
{
this.logger.LogError("Error creating UaTcpSessionClient. {0}", ex.Message);
}
}
public MySubscription(UaTcpSessionClient session)
{
this.Session = session;
this.PublishingInterval = 1000.0;
this.KeepAliveCount = 10;
this.LifetimeCount = 0;
this.PublishingEnabled = true;
this.MonitoredItems = new MonitoredItemCollection(this);
this.Session.Subscribe(this);
}
public App(UaTcpSessionClient session)
{
this.session = session;
var viewModel = new MainViewModel(this.session);
var view = new MainPage {
BindingContext = viewModel
};
this.MainPage = new NavigationPage(view);
}
public async Task TestSubscription()
{
// get or add application certificate.
var localCertificate = this.localDescription.GetCertificate();
if (localCertificate == null)
{
throw new ServiceResultException(StatusCodes.BadSecurityChecksFailed, "Application certificate is missing.");
}
// discover available endpoints of server.
var getEndpointsRequest = new GetEndpointsRequest
{
EndpointUrl = this.endpointUrl,
ProfileUris = new[] { TransportProfileUris.UaTcpTransport }
};
Console.WriteLine($"Discovering endpoints of '{getEndpointsRequest.EndpointUrl}'.");
var getEndpointsResponse = await UaTcpDiscoveryClient.GetEndpointsAsync(getEndpointsRequest);
var selectedEndpoint = getEndpointsResponse.Endpoints.OrderBy(e => e.SecurityLevel).Last();
IUserIdentity selectedUserIdentity = new UserNameIdentity("root", "secret");
var session = new UaTcpSessionClient(
this.localDescription,
localCertificate,
selectedUserIdentity,
selectedEndpoint);
Console.WriteLine($"Creating session with endpoint '{session.RemoteEndpoint.EndpointUrl}'.");
Console.WriteLine($"SecurityPolicy: '{session.RemoteEndpoint.SecurityPolicyUri}'.");
Console.WriteLine($"SecurityMode: '{session.RemoteEndpoint.SecurityMode}'.");
var sub = new MySubscription(session);
Console.WriteLine($"Created subscription.");
await Task.Delay(5000);
session.Dispose();
Assert.IsTrue(sub.CurrentTime != DateTime.MinValue);
Assert.IsTrue(sub.CurrentTimeAsDataValue != null);
Assert.IsTrue(sub.CurrentTimeQueue.Count > 0);
}
protected override void OnStartup(StartupEventArgs e)
{
// Setup a logger.
this.loggerFactory = new LoggerFactory();
this.loggerFactory.AddDebug(LogLevel.Trace);
// discover available endpoints of server.
var getEndpointsRequest = new GetEndpointsRequest
{
EndpointUrl = StatusHmi.Properties.Settings.Default.EndpointUrl,
ProfileUris = new[] { TransportProfileUris.UaTcpTransport }
};
var getEndpointsResponse = UaTcpDiscoveryClient.GetEndpointsAsync(getEndpointsRequest).Result;
var endpoint = getEndpointsResponse.Endpoints
.Where(d => d.SecurityPolicyUri == SecurityPolicyUris.Basic256 &&
d.SecurityMode == MessageSecurityMode.SignAndEncrypt)
.First();
// Create the session client for the app.
this.session = new UaTcpSessionClient(
new ApplicationDescription()
{
ApplicationName = "Workstation.StatusHmi",
ApplicationUri = $"urn:{System.Net.Dns.GetHostName()}:Workstation.StatusHmi",
ApplicationType = ApplicationType.Client
},
new DirectoryStore(
Environment.ExpandEnvironmentVariables(@"%LOCALAPPDATA%\Workstation.StatusHmi\pki"),
loggerFactory: this.loggerFactory),
this.ProvideUserIdentity,
endpoint,
this.loggerFactory);
// Create the main view model.
var viewModel = new MainViewModel(this.session);
// Create and show the main view.
var view = new MainView {
DataContext = viewModel
};
view.Show();
base.OnStartup(e);
}
public async Task TestSubscription()
{
// discover available endpoints of server.
var getEndpointsRequest = new GetEndpointsRequest
{
EndpointUrl = this.endpointUrl,
ProfileUris = new[] { TransportProfileUris.UaTcpTransport }
};
Console.WriteLine($"Discovering endpoints of '{getEndpointsRequest.EndpointUrl}'.");
var getEndpointsResponse = await UaTcpDiscoveryClient.GetEndpointsAsync(getEndpointsRequest);
var selectedEndpoint = getEndpointsResponse.Endpoints.OrderBy(e => e.SecurityLevel).Last();
var session = new UaTcpSessionClient(
this.localDescription,
this.certificateStore,
ed => Task.FromResult <IUserIdentity>(new UserNameIdentity("root", "secret")),
selectedEndpoint,
loggerFactory: this.loggerFactory);
Console.WriteLine($"Creating session with endpoint '{session.RemoteEndpoint.EndpointUrl}'.");
Console.WriteLine($"SecurityPolicy: '{session.RemoteEndpoint.SecurityPolicyUri}'.");
Console.WriteLine($"SecurityMode: '{session.RemoteEndpoint.SecurityMode}'.");
var sub = new MySubscription();
session.Subscribe(sub);
Console.WriteLine($"Created subscription.");
await Task.Delay(5000);
session.Dispose();
Assert.IsTrue(sub.CurrentTime != DateTime.MinValue, "CurrentTime");
Assert.IsTrue(sub.CurrentTimeAsDataValue != null, "CurrentTimeAsDataValue");
Assert.IsTrue(sub.CurrentTimeQueue.Count > 0, "CurrentTimeQueue");
}
/// <summary>
/// Sets the Robot1Mode to Auto.
/// </summary>
public async void Robot1ModeAuto()
{
try
{
await UaTcpSessionClient.FromModel(this).WriteAsync(new WriteRequest
{
NodesToWrite = new[]
{
new WriteValue
{
NodeId = NodeId.Parse("ns=2;s=Robot1_Mode"),
AttributeId = AttributeIds.Value,
IndexRange = null,
Value = new DataValue((short)HandOffAuto.Auto)
}
}
});
}
catch (Exception ex)
{
Debug.WriteLine("Error writing to NodeId {0} : {1}", "ns=2;s=Robot1_Mode", ex);
}
}
public TrafficLightViewModel(UaTcpSessionClient session)
{
this.session = session;
}
public MainViewModel(UaTcpSessionClient session)
{
this.session = session;
session.Subscribe(this);
}
public MainViewModel(PLC1Session session)
{
this.session = session;
this.subscriptionToken = this.session?.Subscribe(this);
}
