: 'Error establishing a connection: Error received from remote host: An error occurred verifying security.'
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Hi Everybody

I have a simple question.

I have a project where i want manage 25 client opa ua that point on 25 different server.
The problem is that the clients are in the same pc and in the same project ( so 25 client with same ip address and 25 server with different ip).

Currently i have 24 server offline and 1 is online. The problem is that the client that have the server available, is not able to connect,
so all is not connected. If in my project i remove the 24 offline clients, the client will be connected.

Exist a maximum opc ua client number?

i m using Opc.Ua.FX.Advanced library

Thanks

Hi,

the interface which was used for the EMO Hannover 2019 machine tool demonstration is now released as OPC 40501-1 UA for Machine Tools.

Please update the sample to the released version of the nodeset.

To support the showcase in the future, please refer to the showcase specification.

Thanks.

Hello

I tried your example under ..\opcuanet-samples-master\cs\Configuration\Client.ConfiguredViaXml with the 2nd Way to load an OPC UA Configuration with following line
configuration = OpcApplicationConfiguration.LoadClientConfig("Opc.UaFx.Client"); I get null as result.
I didn't change anythnig on your example. I would be happy for an answer. Thanks a lot and best reagrds
JP.

Hello,

it's not possible for me to subscribe Events with the Version 2.30-2.33.(look at #9 )
When i downgrade to 2.29 i get the Events without using an filter.

OpcNodeInfo node = Path2NodeID(parentnode, "DeviceSet/IMM_ENGEL_247005");
fclient.SubscribeEvent(node.NodeId, HandleEvent);

When i try to filter the Events, i get nothing.

OpcNodeId[] eventFilterIds = new OpcNodeId[] {
                       Path2NodeID(fclient.BrowseNode(OpcObjectTypes.EventTypesFolder), "BaseEventType/CycleParametersEventType").NodeId,
                       Path2NodeID(fclient.BrowseNode(OpcObjectTypes.EventTypesFolder), "BaseEventType/CycleParametersEventType/EngelCycleParametersEventType").NodeId,
                       Path2NodeID(fclient.BrowseNode(OpcObjectTypes.EventTypesFolder), "BaseEventType/LogbookEventType").NodeId,
                       Path2NodeID(fclient.BrowseNode(OpcObjectTypes.EventTypesFolder), "BaseEventType/LogbookEventType/ProductionStatusChangeLogType").NodeId

                   };
      
var eventFilter = OpcFilter.Using(fclient).FromEvents(eventFilterIds).Select();
subscription = fclient.SubscribeEvent(OpcObjectTypes.ObjectsFolder, eventFilter, HandleEvent);

I want to get the Event EngelCycleParametersEventType. How do i have to set the filter?

thanks in advanced
atheos

Hi all,

I found the following unit test failing due to multiple Asserts at the end of the test are not valid:

`[Fact]
public async Task ClientReconnectOnServerRestart()
{
// Arrange
var server = new OpcServer();

var client = new OpcClient("opc.tcp://localhost:4840/")
{
    ReconnectTimeout = 5,
    UseBreakDetection = true
};

var calledReconnecting = false;
var calledReconnected = false;
var calledConnecting = false;
var calledConnected = false;
var calledBreakDetected = false;
var calledDisconnected = false;

server.Start();
client.Connect();

client.Disconnected += (sender, args) => calledDisconnected = true;
client.Reconnecting += (sender, args) => calledReconnecting = true;
client.Reconnected += (sender, args) => calledReconnected = true;
client.Connecting += (sender, args) => calledConnecting = true;
client.Connected += (sender, args) => calledConnected = true;
client.BreakDetected += (sender, args) => calledBreakDetected = true;

using var tokenSource = new CancellationTokenSource(30000);
CancellationToken cancellationToken = tokenSource.Token;

// Assert
Assert.Equal(OpcClientState.Connected, client.State);

// Act
server.Stop();

server.Start();

while (!cancellationToken.IsCancellationRequested)
{
    await Task.Delay(10);

    if (calledReconnected)
    {
        break;
    }
}

// Assert
Assert.False(cancellationToken.IsCancellationRequested);
Assert.False(calledBreakDetected);
Assert.False(calledConnected);
Assert.False(calledConnecting);
Assert.True(calledReconnecting);
Assert.True(calledReconnected);
Assert.False(calledDisconnected);

}`

The result looks as follows and in this case not as expected:

What I understand from the docs is that with ReconnectTimeout = 0 the BreakDetected should fire and with ReconnectTimeout > 0 the Reconnecting and Reconnected should fire.

Am I missing any conditions/docs or am I using the API the wrong way?

Thanks for help!

From 6.2 EventNotifier and source hierarchy https://reference.opcfoundation.org/v104/Core/docs/Part9/6.2/
It says "The Server Object shall be the root of this hierarchy." if this is to be followed should the AE.Server example be updated so that machineOne node sends event to server?
https://github.com/Traeger-GmbH/opcuanet-samples/blob/master/cs/Basic/Server.AE/SampleNodeManager.cs
with current example code i get this:

and when following example from> https://docs.traeger.de/en/software/sdk/opc-ua/net/client.development.guide
client.SubscribeEvent(OpcObjectTypes.Server, HandleGlobalEvents);
I will not get events on alarms generated under machineOne.

with this line added:
this.AddNotifierNode(machineOne);
i get this>

Hi Team,

I am trying to connect to a classic OPC DA.
I can connect when server is local but facing problems while connecting to remote OPC DA.
when I try to discover servers then for local it works fine, but for remote it gives below error
var discoveryClient = new OpcClassicDiscoveryClient("", identity)
OpcException: Could not create COM server '13486d51-4821-11d2-a494-3cb306c10000' on host ''. Reason: The object exporter specified was not found

Can you please share some sample configuration with code example that needs to be made on the client or server, ports that needs to opened etc

In the end, I would like to create a container which will run on linux to connect to OPC DA server

Hello,

I want to read nodes with the nodepath like Objects/DeviceSet/IMM_ENGEL_247005/MachineMESStatus/StandstillMessage/Message

In the next Image i try to access the node with different ways. Attept 1,3 and 4 returns the expected value.(Path2NodeID is only a Helper function which browse through the path)

What is the correct way to use the paths instead of the identifier? Did i have to browse for the nodeids or should i import a nodelist.xml(the ids changes through the manufacturer)

thanks in advanced
atheos

Hello,
I tried to implement the example illustrated here but unfortunately the event pub / sub doesn't seem to work on either my MacOS and Windows:

Can you help me?
Thank you