Hi,
It is version 6.1.601.0. See the attached screen capture.
Thank you.
Michael

Hi,

See the attached file.

Thanks.

Michael

Hi,
Thank you for your answer.

First issue: solved by the new version.

Second issue:
If I use this endpoint URL "opc.tcp://Dell-i7mike:49320" I get an error when browsing:
No connection could be made because the target machine actively refused it 192.168.1.43:49320
+ This is a deducted base exception.
If I use this endpoint URL "opc.tcp://127.0.0.1:49320", then I am able to browse and I don't get an error.

Third issue:
I don't know if it worked with previous version. The problem is related to the number of items in the branch. See attached screen capture.
The error is "Message size 65536 bytes is too large for buffer of size 65535".
Note: I have 25,000 items in the "Functions" branch and 1,000 items in the "Channel1 > Device1" branch.
Note: When I browse to the same Kepware OPC DA server, there is no error. I am able to see all 25000 items. See attached screen capture.

To reproduce the problem, please try browsing the "Channel1 > Device1" branch using OPC UA browsing.

Thank you.

Michael

One more problem after the upgrade to the newer version. When I try browsing the Simulation > Functions branch I am getting an error. See below. With OPC UA Expert there is no problem browsing this folder. See the attached screen capture. Note: there are 25,000 items in this folder.

Cannot lock the OPC-UA client session because it is not available.
+ The client method called (or event/callback invoked) was 'BrowseMultiple'.

Exceptions

Type: OpcLabs.BaseLib.Browsing.BrowseException
Data:
HelpLink:
HResult: -2146233088 (0x80131500)
InnerException:
OpcLabs.EasyOpc.UA.Engine.UAEngineException: Cannot lock the OPC-UA client session because it is not available.
+ The client method called (or event/callback invoked) was 'BrowseMultiple'.
Activity Trace:
Data:
ErrorId: OpcLabs.UAEngine=2307
OpcLabs.EasyOpc.UA.Implementation.ErrorEnhancingEasyUAClient.Processed: True
Error Code: 2307
HelpLink:
HResult: -2146232832 (0x80131600)
InnerException:
Message:
Cannot lock the OPC-UA client session because it is not available.
+ The client method called (or event/callback invoked) was 'BrowseMultiple'.
Source:
Stack Trace:
TargetSite:
Message: Problem browsing OPC Unified Architecture nodes.
Source:
StackTrace:
TargetSite:

I have upgraded to version 5.61.241.1, but the same problem persists.

No connection could be made because the target machine actively refused it 192.168.1.43:49320
+ This is a deducted base exception.

Exceptions

Type: OpcLabs.BaseLib.Browsing.BrowseException
Data:
HelpLink:
HResult: -2146233088 (0x80131500)
InnerException:
OpcLabs.EasyOpc.UA.Engine.UAEngineException: UA SDK error (Opc.UA.ServiceResult=0x80820000) in 'DiscoveryClient.GetEndpoints'. OPC UA service result - {BadTcpInternalError}. Error establishing a connection.
+ The error occurred when preselecting an endpoint for discovery URL "opc.tcp://Dell-i7mike:49320".
+ Some possible causes of this error are that the OPC-UA server is not running, or is not configured to listen on the specified port. Also, the network connection may be broken (cable unplugged?).
+ The endpoint URL string used was "opc.tcp://Dell-i7mike:49320".
+ The client method called (or event/callback invoked) was 'BrowseMultiple'. ---> OpcLabs.EasyOpc.UA.UAServiceException: OPC UA service result - {BadTcpInternalError}. Error establishing a connection.
--> {BadTcpInternalError}. An unexpected error occurred while connecting to the server.
--> {Bad}. No connection could be made because the target machine actively refused it 192.168.1.43:49320. ---> OpcLabs.BaseLib.Portable.CustomException: No connection could be made because the target machine actively refused it 192.168.1.43:49320
+ This is a deducted base exception.
--- End of inner exception stack trace ---
--- End of inner exception stack trace ---
Activity Trace:
Following (7) events were gathered during the action on activity ID [24], in the order of first occurrence:
SDK trace: GetEndpoints Called. RequestHandle=1, PendingRequestCount=1
3*[10] Exception: {System.Net.Sockets.SocketException} No connection could be made because the target machine actively refused it
[28] Exception: {Opc.Ua.ServiceResultException} An unexpected error occurred while connecting to the server.
Exception: {Opc.Ua.ServiceResultException} Error establishing a connection.
SDK trace: GetEndpoints Completed. RequestHandle=1, PendingRequestCount=0, StatusCode=Bad
Events starting with activity ID in [] may not necessarily be related to the current action.

Data:
ErrorId: OpcLabs.UAEngine=1
7b4d9f28-22a8-41d6-93ea-e4d8c2a75da8:
((24, 1), Opc.Ua.TraceEventArgs)
((10, 0), System.Runtime.ExceptionServices.FirstChanceExceptionEventArgs)
((10, 0), System.Runtime.ExceptionServices.FirstChanceExceptionEventArgs)
((10, 0), System.Runtime.ExceptionServices.FirstChanceExceptionEventArgs)
((28, 0), System.Runtime.ExceptionServices.FirstChanceExceptionEventArgs)
((24, 1), System.Runtime.ExceptionServices.FirstChanceExceptionEventArgs)
((24, 1), Opc.Ua.TraceEventArgs)
c3c0e69e-bf8f-4bfa-8e93-816783737e55: 24
OpcLabs.EasyOpc.UA.Implementation.ErrorEnhancingEasyUAClient.Processed: True
Error Code: 1
HelpLink:
HResult: -2146232832 (0x80131600)
InnerException:
OpcLabs.EasyOpc.UA.UAServiceException: OPC UA service result - {BadTcpInternalError}. Error establishing a connection.
--> {BadTcpInternalError}. An unexpected error occurred while connecting to the server.
--> {Bad}. No connection could be made because the target machine actively refused it 192.168.1.43:49320. ---> OpcLabs.BaseLib.Portable.CustomException: No connection could be made because the target machine actively refused it 192.168.1.43:49320
+ This is a deducted base exception.
--- End of inner exception stack trace ---
Data: ErrorId: Opc.UA.ServiceResult=0x80820000
Help Link:
HResult: -2146232832 (0x80131600)
InnerException:
OpcLabs.BaseLib.Portable.CustomException: No connection could be made because the target machine actively refused it 192.168.1.43:49320
+ This is a deducted base exception.
Data: ErrorId: {027F782F1C}
HelpLink:
HResult: -2146232832 (0x80131600)
InnerException:
Message:
No connection could be made because the target machine actively refused it 192.168.1.43:49320
+ This is a deducted base exception.
Source:
StackTrace:
TargetSite:
Internal Code: 2156003328
Message:
OPC UA service result - {BadTcpInternalError}. Error establishing a connection.
--> {BadTcpInternalError}. An unexpected error occurred while connecting to the server.
--> {Bad}. No connection could be made because the target machine actively refused it 192.168.1.43:49320.
Service Result: BadTcpInternalError
Additional Info:
Description: Error establishing a connection.
Inner Result: BadTcpInternalError
Additional Info:
>>> An unexpected error occurred while connecting to the server.
--- at Opc.Ua.Bindings.TcpAsyncOperation`1.End(Int32 timeout)
--- at Opc.Ua.Bindings.TcpClientChannel.OnConnectOnDemandComplete(Object state)
Description: An unexpected error occurred while connecting to the server.
Inner Result: Bad
Additional Info:
>>> No connection could be made because the target machine actively refused it 192.168.1.43:49320
--- at System.Net.Sockets.Socket.InternalEndConnect(IAsyncResult asyncResult)
--- at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)
--- at Opc.Ua.Bindings.TcpMessageSocket.EndConnect(IAsyncResult result)
--- at Opc.Ua.Bindings.TcpClientChannel.OnConnectComplete(IAsyncResult result)
Description: No connection could be made because the target machine actively refused it 192.168.1.43:49320
Inner Result:
Qualified Symbolic ID:
Expanded Text:
Is Null: True
Name:
Namespace Index: 0
Namespace URI:
Namespace URI String:
Standard Name:
Status Code: Bad
Code Bits: 32768
Code Bits Symbol: Bad
Condition: 0
Flag Bits: 0
Has Data Value Info: False
Info Type: NotUsed
Internal Value: 2147483648
Is Bad: True
Is Good: False
Is Uncertain: False
Limit Info: None
Overflow: False
Semantics Changed: False
Severity: BadOrFailure
Status Info: Error
Structure Changed: False
Text: {Bad}. No connection could be made because the target machine actively refused it 192.168.1.43:49320.
Qualified Symbolic ID:
Expanded Text:
Is Null: True
Name:
Namespace Index: 0
Namespace URI:
Namespace URI String:
Standard Name:
Status Code: BadTcpInternalError
Code Bits: 32898
Code Bits Symbol: BadTcpInternalError
Condition: 130
Flag Bits: 0
Has Data Value Info: False
Info Type: NotUsed
Internal Value: 2156003328
Is Bad: True
Is Good: False
Is Uncertain: False
Limit Info: None
Overflow: False
Semantics Changed: False
Severity: BadOrFailure
Status Info: Error
Structure Changed: False
Text:
{BadTcpInternalError}. An unexpected error occurred while connecting to the server.
--> {Bad}. No connection could be made because the target machine actively refused it 192.168.1.43:49320.
Qualified Symbolic ID:
Expanded Text:
Is Null: True
Name:
Namespace Index: 0
Namespace URI:
Namespace URI String:
Standard Name:
Status Code: BadTcpInternalError
Code Bits: 32898
Code Bits Symbol: BadTcpInternalError
Condition: 130
Flag Bits: 0
Has Data Value Info: False
Info Type: NotUsed
Internal Value: 2156003328
Is Bad: True
Is Good: False
Is Uncertain: False
Limit Info: None
Overflow: False
Semantics Changed: False
Severity: BadOrFailure
Status Info: Error
Structure Changed: False
Text:
{BadTcpInternalError}. Error establishing a connection.
--> {BadTcpInternalError}. An unexpected error occurred while connecting to the server.
--> {Bad}. No connection could be made because the target machine actively refused it 192.168.1.43:49320.
Service Target Site: T End(Int32)
DeclaringType: Opc.Ua.Bindings.TcpAsyncOperation`1[T]
Module: Opc.Ua.Core.dll
Assembly: Opc.Ua.Core, Version=1.3.342.0, Culture=neutral, PublicKeyToken=6faddca41dacb409
CustomAttributes:
FullyQualifiedName: C:\Program Files (x86)\Control-See\EBO-OPC Client\BIN\Opc.Ua.Core.dll
MDStreamVersion: 131072
MetadataToken: 1
ModuleHandle: System.ModuleHandle
MDStreamVersion: 131072
ModuleVersionId: cc819e15-c1f0-4cd1-a4cc-c7b59fd7b4d5
Name: Opc.Ua.Core.dll
ScopeName: Opc.Ua.Core.dll
Source: Opc.Ua.Core
Stack Trace:
at Opc.Ua.Bindings.TcpAsyncOperation`1.End(Int32 timeout)
at Opc.Ua.Bindings.TcpClientChannel.EndSendRequest(IAsyncResult result)
at Opc.Ua.Bindings.TcpTransportChannel.EndSendRequest(IAsyncResult result)
at Opc.Ua.Bindings.TcpTransportChannel.SendRequest(IServiceRequest request)
at Opc.Ua.DiscoveryClient.GetEndpoints(RequestHeader requestHeader, String endpointUrl, StringCollection localeIds, StringCollection profileUris, EndpointDescriptionCollection& endpoints)
at OpcLabs.EasyOpc.UA.Toolkit.Sdk.ToolkitDiscoveryClient.OpcLabs.EasyOpc.UA.Toolkit.ClientServer.ISdkDiscoveryClient.GetEndpoints(String endpointUrl, StringCollection sdkProfileUris)
at OpcLabs.EasyOpc.UA.Toolkit.Sdk.ClientUtils.<>c__DisplayClass55_0.<SelectEndpointInternal>b__2()
at OpcLabs.EasyOpc.UA.Toolkit.UAEngineBase.PerformSdkAction(UASdkCallType callType, Func`1 usingFunction, String name, Action sdkAction)
TargetSite:
Message:
UA SDK error (Opc.UA.ServiceResult=0x80820000) in 'DiscoveryClient.GetEndpoints'. OPC UA service result - {BadTcpInternalError}. Error establishing a connection.
+ The error occurred when preselecting an endpoint for discovery URL "opc.tcp://Dell-i7mike:49320".
+ Some possible causes of this error are that the OPC-UA server is not running, or is not configured to listen on the specified port. Also, the network connection may be broken (cable unplugged?).
+ The endpoint URL string used was "opc.tcp://Dell-i7mike:49320".
+ The client method called (or event/callback invoked) was 'BrowseMultiple'.
Source:
Stack Trace:
== Activity Trace ==
Following (7) events were gathered during the action on activity ID [24], in the order of first occurrence:
SDK trace: GetEndpoints Called. RequestHandle=1, PendingRequestCount=1
3*[10] Exception: {System.Net.Sockets.SocketException} No connection could be made because the target machine actively refused it
[28] Exception: {Opc.Ua.ServiceResultException} An unexpected error occurred while connecting to the server.
Exception: {Opc.Ua.ServiceResultException} Error establishing a connection.
SDK trace: GetEndpoints Completed. RequestHandle=1, PendingRequestCount=0, StatusCode=Bad
Events starting with activity ID in [] may not necessarily be related to the current action.

TargetSite:
Message: Problem browsing OPC Unified Architecture nodes.
Source:
StackTrace:
TargetSite:


Please advise.
Thank you.

Michael

Hi,

I tried it on my compute. When I try item browsing I get this exception.

Thanks.
Michael

Exceptions

Type: OpcLabs.BaseLib.Browsing.BrowseException
Data:
HelpLink:
HResult: -2146233088 (0x80131500)
InnerException:
OpcLabs.EasyOpc.UA.Engine.UAEngineException: UA SDK error (Opc.UA.ServiceResult=0x80820000) in 'DiscoveryClient.GetEndpoints'. OPC UA service result - {BadTcpInternalError}. Error establishing a connection.
+ The error occurred when preselecting an endpoint for discovery URL "opc.tcp://Dell-i7mike:49320".
+ Some possible causes of this error are that the OPC-UA server is not running, or is not configured to listen on the specified port. Also, the network connection may be broken (cable unplugged?).
+ The endpoint URL string used was "opc.tcp://Dell-i7mike:49320".
+ The client method called (or event/callback invoked) was 'BrowseMultiple'. ---> OpcLabs.EasyOpc.UA.UAServiceException: OPC UA service result - {BadTcpInternalError}. Error establishing a connection.
--> {BadTcpInternalError}. An unexpected error occurred while connecting to the server.
--> {Bad}. No connection could be made because the target machine actively refused it 192.168.1.43:49320. ---> OpcLabs.BaseLib.Portable.CustomException: No connection could be made because the target machine actively refused it 192.168.1.43:49320
+ This is a deducted base exception.
--- End of inner exception stack trace ---
--- End of inner exception stack trace ---
Activity Trace:
Following (7) events were gathered during the action on activity ID [20], in the order of first occurrence:
SDK trace: GetEndpoints Called. RequestHandle=1, PendingRequestCount=1
3*[11] Exception: {System.Net.Sockets.SocketException} No connection could be made because the target machine actively refused it
[15] Exception: {Opc.Ua.ServiceResultException} An unexpected error occurred while connecting to the server.
Exception: {Opc.Ua.ServiceResultException} Error establishing a connection.
SDK trace: GetEndpoints Completed. RequestHandle=1, PendingRequestCount=0, StatusCode=Bad
Events starting with activity ID in [] may not necessarily be related to the current action.

Data:
ErrorId: OpcLabs.UAEngine=1
7b4d9f28-22a8-41d6-93ea-e4d8c2a75da8:
((20, 1), Opc.Ua.TraceEventArgs)
((11, 0), System.Runtime.ExceptionServices.FirstChanceExceptionEventArgs)
((11, 0), System.Runtime.ExceptionServices.FirstChanceExceptionEventArgs)
((11, 0), System.Runtime.ExceptionServices.FirstChanceExceptionEventArgs)
((15, 0), System.Runtime.ExceptionServices.FirstChanceExceptionEventArgs)
((20, 1), System.Runtime.ExceptionServices.FirstChanceExceptionEventArgs)
((20, 1), Opc.Ua.TraceEventArgs)
c3c0e69e-bf8f-4bfa-8e93-816783737e55: 20
OpcLabs.EasyOpc.UA.Implementation.ErrorEnhancingEasyUAClient.Processed: True
Error Code: 1
HelpLink:
HResult: -2146232832 (0x80131600)
InnerException:
OpcLabs.EasyOpc.UA.UAServiceException: OPC UA service result - {BadTcpInternalError}. Error establishing a connection.
--> {BadTcpInternalError}. An unexpected error occurred while connecting to the server.
--> {Bad}. No connection could be made because the target machine actively refused it 192.168.1.43:49320. ---> OpcLabs.BaseLib.Portable.CustomException: No connection could be made because the target machine actively refused it 192.168.1.43:49320
+ This is a deducted base exception.
--- End of inner exception stack trace ---
Data: ErrorId: Opc.UA.ServiceResult=0x80820000
Help Link:
HResult: -2146232832 (0x80131600)
InnerException:
OpcLabs.BaseLib.Portable.CustomException: No connection could be made because the target machine actively refused it 192.168.1.43:49320
+ This is a deducted base exception.
Data: ErrorId: {027F782F1C}
HelpLink:
HResult: -2146232832 (0x80131600)
InnerException:
Message:
No connection could be made because the target machine actively refused it 192.168.1.43:49320
+ This is a deducted base exception.
Source:
StackTrace:
TargetSite:
Internal Code: 2156003328
Message:
OPC UA service result - {BadTcpInternalError}. Error establishing a connection.
--> {BadTcpInternalError}. An unexpected error occurred while connecting to the server.
--> {Bad}. No connection could be made because the target machine actively refused it 192.168.1.43:49320.
Service Result: BadTcpInternalError
Additional Info:
Description: Error establishing a connection.
Inner Result: BadTcpInternalError
Additional Info:
>>> An unexpected error occurred while connecting to the server.
--- at Opc.Ua.Bindings.TcpAsyncOperation`1.End(Int32 timeout)
--- at Opc.Ua.Bindings.TcpClientChannel.OnConnectOnDemandComplete(Object state)
Description: An unexpected error occurred while connecting to the server.
Inner Result: Bad
Additional Info:
>>> No connection could be made because the target machine actively refused it 192.168.1.43:49320
--- at System.Net.Sockets.Socket.InternalEndConnect(IAsyncResult asyncResult)
--- at System.Net.Sockets.Socket.EndConnect(IAsyncResult asyncResult)
--- at Opc.Ua.Bindings.TcpMessageSocket.EndConnect(IAsyncResult result)
--- at Opc.Ua.Bindings.TcpClientChannel.OnConnectComplete(IAsyncResult result)
Description: No connection could be made because the target machine actively refused it 192.168.1.43:49320
Inner Result:
Qualified Symbolic ID:
Expanded Text:
Is Null: True
Name:
Namespace Index: 0
Namespace URI:
Namespace URI String:
Standard Name:
Status Code: Bad
Code Bits: 32768
Code Bits Symbol: Bad
Condition: 0
Flag Bits: 0
Has Data Value Info: False
Info Type: NotUsed
Internal Value: 2147483648
Is Bad: True
Is Good: False
Is Uncertain: False
Limit Info: None
Overflow: False
Semantics Changed: False
Severity: BadOrFailure
Status Info: Error
Structure Changed: False
Text: {Bad}. No connection could be made because the target machine actively refused it 192.168.1.43:49320.
Qualified Symbolic ID:
Expanded Text:
Is Null: True
Name:
Namespace Index: 0
Namespace URI:
Namespace URI String:
Standard Name:
Status Code: BadTcpInternalError
Code Bits: 32898
Code Bits Symbol: BadTcpInternalError
Condition: 130
Flag Bits: 0
Has Data Value Info: False
Info Type: NotUsed
Internal Value: 2156003328
Is Bad: True
Is Good: False
Is Uncertain: False
Limit Info: None
Overflow: False
Semantics Changed: False
Severity: BadOrFailure
Status Info: Error
Structure Changed: False
Text:
{BadTcpInternalError}. An unexpected error occurred while connecting to the server.
--> {Bad}. No connection could be made because the target machine actively refused it 192.168.1.43:49320.
Qualified Symbolic ID:
Expanded Text:
Is Null: True
Name:
Namespace Index: 0
Namespace URI:
Namespace URI String:
Standard Name:
Status Code: BadTcpInternalError
Code Bits: 32898
Code Bits Symbol: BadTcpInternalError
Condition: 130
Flag Bits: 0
Has Data Value Info: False
Info Type: NotUsed
Internal Value: 2156003328
Is Bad: True
Is Good: False
Is Uncertain: False
Limit Info: None
Overflow: False
Semantics Changed: False
Severity: BadOrFailure
Status Info: Error
Structure Changed: False
Text:
{BadTcpInternalError}. Error establishing a connection.
--> {BadTcpInternalError}. An unexpected error occurred while connecting to the server.
--> {Bad}. No connection could be made because the target machine actively refused it 192.168.1.43:49320.
Service Target Site: T End(Int32)
DeclaringType: Opc.Ua.Bindings.TcpAsyncOperation`1[T]
Module: Opc.Ua.Core.dll
Assembly: Opc.Ua.Core, Version=1.3.342.0, Culture=neutral, PublicKeyToken=6faddca41dacb409
CustomAttributes:
FullyQualifiedName: C:\Program Files (x86)\Control-See\EBO-OPC Client\BIN\Opc.Ua.Core.dll
MDStreamVersion: 131072
MetadataToken: 1
ModuleHandle: System.ModuleHandle
MDStreamVersion: 131072
ModuleVersionId: aff29d47-142d-4b81-b5b8-6e336f940cd7
Name: Opc.Ua.Core.dll
ScopeName: Opc.Ua.Core.dll
Source: Opc.Ua.Core
Stack Trace:
at Opc.Ua.Bindings.TcpAsyncOperation`1.End(Int32 timeout)
at Opc.Ua.Bindings.TcpClientChannel.EndSendRequest(IAsyncResult result)
at Opc.Ua.Bindings.TcpTransportChannel.EndSendRequest(IAsyncResult result)
at Opc.Ua.Bindings.TcpTransportChannel.SendRequest(IServiceRequest request)
at Opc.Ua.DiscoveryClient.GetEndpoints(RequestHeader requestHeader, String endpointUrl, StringCollection localeIds, StringCollection profileUris, EndpointDescriptionCollection& endpoints)
at OpcLabs.EasyOpc.UA.Toolkit.Sdk.ToolkitDiscoveryClient.OpcLabs.EasyOpc.UA.Toolkit.ClientServer.ISdkDiscoveryClient.GetEndpoints(String endpointUrl, StringCollection sdkProfileUris)
at OpcLabs.EasyOpc.UA.Toolkit.Sdk.ClientUtils.<>c__DisplayClass55_0.<SelectEndpointInternal>b__2()
at OpcLabs.EasyOpc.UA.Toolkit.UAEngineBase.PerformSdkAction(UASdkCallType callType, Func`1 usingFunction, String name, Action sdkAction)
TargetSite:
Message:
UA SDK error (Opc.UA.ServiceResult=0x80820000) in 'DiscoveryClient.GetEndpoints'. OPC UA service result - {BadTcpInternalError}. Error establishing a connection.
+ The error occurred when preselecting an endpoint for discovery URL "opc.tcp://Dell-i7mike:49320".
+ Some possible causes of this error are that the OPC-UA server is not running, or is not configured to listen on the specified port. Also, the network connection may be broken (cable unplugged?).
+ The endpoint URL string used was "opc.tcp://Dell-i7mike:49320".
+ The client method called (or event/callback invoked) was 'BrowseMultiple'.
Source:
Stack Trace:
== Activity Trace ==
Following (7) events were gathered during the action on activity ID [20], in the order of first occurrence:
SDK trace: GetEndpoints Called. RequestHandle=1, PendingRequestCount=1
3*[11] Exception: {System.Net.Sockets.SocketException} No connection could be made because the target machine actively refused it
[15] Exception: {Opc.Ua.ServiceResultException} An unexpected error occurred while connecting to the server.
Exception: {Opc.Ua.ServiceResultException} Error establishing a connection.
SDK trace: GetEndpoints Completed. RequestHandle=1, PendingRequestCount=0, StatusCode=Bad
Events starting with activity ID in [] may not necessarily be related to the current action.

TargetSite:
Message: Problem browsing OPC Unified Architecture nodes.
Source:
StackTrace:
TargetSite:

Hi,

Sorry. The version is 5.60.107.1.

Regards,

Michael