Online Forums
Technical support is provided through Support Forums below. Anybody can view them; you need to Register/Login to our site (see links in upper right corner) in order to Post questions. You do not have to be a licensed user of our product.
Please read Rules for forum posts before reporting your issue or asking a question. OPC Labs team is actively monitoring the forums, and replies as soon as possible. Various technical information can also be found in our Knowledge Base. For your convenience, we have also assembled a Frequently Asked Questions page.
Do not use the Contact page for technical issues.
Cannot browse OPC servers in remote computer
09 Aug 2019 07:06 #7613
by SZL
Replied by SZL on topic Cannot browse OPC servers in remote computer
Additional information 2:
I try with this simple code:
The error message is the same:
I check the Windows EventLog after this and I see the following error message:
Thank you!
I try with this simple code:
Dim j = EasyDAClient.SharedInstance.ReadItemValue("172.25.118.1", "Kepware.KEPServerEX.V5", "Siem.VERXEMS08.FQ_GV12")
MsgBox(j)The error message is the same:
See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
OpcLabs.EasyOpc.OperationModel.OpcException: An OPC operation failure with error code -1073430509 (0xC004C013) occurred, originating from 'OpcLabs.EasyOpcRaw.DataAccess.RawEasyDAClient'. The inner exception contains details about the problem. ---> System.Runtime.InteropServices.COMException: Read not completed. This error indicates that it could not be verified that the requested read operation was completed during the timeout period. It is possible that the read operation will actually succeed or fail, but later. Increase the timeout period if you want to obtain positive or negative indication of the operation outcome. Other reason for this error may be that under heavy loads, topic request or response queue is overflowing. Check the event log for queue overflow errors (if event logging is supported by the product and enabled).
--- End of inner exception stack trace ---
at OpcLabs.EasyOpc.Internal.EasyUtilities.CheckSuccess(OperationResult operationResult)
at OpcLabs.EasyOpc.DataAccess.IEasyDAClientExtension.ReadItemValue(IEasyDAClient client, ServerDescriptor serverDescriptor, DAItemDescriptor itemDescriptor, DAReadParameters readParameters)
at OpcLabs.EasyOpc.DataAccess.IEasyDAClientExtension.ReadItemValue(IEasyDAClient client, ServerDescriptor serverDescriptor, DAItemDescriptor itemDescriptor)
at OpcLabs.EasyOpc.DataAccess.IEasyDAClientExtension.ReadItemValue(IEasyDAClient client, String machineName, String serverClass, String itemId, VarType dataType)
at OpcLabs.EasyOpc.DataAccess.IEasyDAClientExtension.ReadItemValue(IEasyDAClient client, String machineName, String serverClass, String itemId)
at OPCReadTester.withSimpleRead.Button1_Click(Object sender, EventArgs e)
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
************** Loaded Assemblies **************
mscorlib
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3416.0 built by: NET472REL1LAST_B
CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
OPCReadTester
Assembly Version: 1.0.0.0
Win32 Version: 1.0.0.0
CodeBase: file:///D:/_Install/OPC%20Read%20Tester/OpcReadTester/OPCReadTester.exe
----------------------------------------
Microsoft.VisualBasic
Assembly Version: 10.0.0.0
Win32 Version: 14.7.3062.0 built by: NET472REL1
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Microsoft.VisualBasic/v4.0_10.0.0.0__b03f5f7f11d50a3a/Microsoft.VisualBasic.dll
----------------------------------------
System
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3416.0 built by: NET472REL1LAST_B
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Core
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3362.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll
----------------------------------------
System.Windows.Forms
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3324.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3062.0 built by: NET472REL1
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System.Configuration
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3324.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
System.Xml
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3062.0 built by: NET472REL1
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
System.Runtime.Remoting
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3062.0 built by: NET472REL1
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Runtime.Remoting/v4.0_4.0.0.0__b77a5c561934e089/System.Runtime.Remoting.dll
----------------------------------------
OpcLabs.EasyOpcClassic
Assembly Version: 5.50.405.1
Win32 Version: 5.50.405.1
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/OpcLabs.EasyOpcClassic/v4.0_5.50.405.1__6faddca41dacb409/OpcLabs.EasyOpcClassic.dll
----------------------------------------
OpcLabs.BaseLib
Assembly Version: 5.50.405.1
Win32 Version: 5.50.405.1
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/OpcLabs.BaseLib/v4.0_5.50.405.1__6faddca41dacb409/OpcLabs.BaseLib.dll
----------------------------------------
System.ServiceModel
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3324.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.ServiceModel/v4.0_4.0.0.0__b77a5c561934e089/System.ServiceModel.dll
----------------------------------------
System.Runtime.Serialization
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3324.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Runtime.Serialization/v4.0_4.0.0.0__b77a5c561934e089/System.Runtime.Serialization.dll
----------------------------------------
SMDiagnostics
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3324.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/SMDiagnostics/v4.0_4.0.0.0__b77a5c561934e089/SMDiagnostics.dll
----------------------------------------
System.ServiceModel.Internals
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3324.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.ServiceModel.Internals/v4.0_4.0.0.0__31bf3856ad364e35/System.ServiceModel.Internals.dll
----------------------------------------
System.Xaml
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3362.0 built by: NET472REL1LAST_C
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xaml/v4.0_4.0.0.0__b77a5c561934e089/System.Xaml.dll
----------------------------------------
BoxedAppSDK.Managed
Assembly Version: 3.3.14.0
Win32 Version: 5.50.405.1
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/OpcLabs.BaseLib/v4.0_5.50.405.1__6faddca41dacb409/OpcLabs.BaseLib.dll
----------------------------------------
App_Web_OpcLabs.EasyOpcClassicRaw.x86
Assembly Version: 5.50.405.1
Win32 Version: 5.50.405.1
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/App_Web_OpcLabs.EasyOpcClassicRaw.x86/v4.0_5.50.405.1__6faddca41dacb409/App_Web_OpcLabs.EasyOpcClassicRaw.x86.dll
----------------------------------------
OpcNetApi
Assembly Version: 2.1.105.1
Win32 Version: 5.50.405.1
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/OpcLabs.BaseLib/v4.0_5.50.405.1__6faddca41dacb409/OpcLabs.BaseLib.dll
----------------------------------------
Accessibility
Assembly Version: 4.0.0.0
Win32 Version: 4.7.3062.0 built by: NET472REL1
CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Accessibility/v4.0_4.0.0.0__b03f5f7f11d50a3a/Accessibility.dll
----------------------------------------
************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.
For example:
<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>
When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.I check the Windows EventLog after this and I see the following error message:
The application-specific permission settings do not grant Local Activation permission for the COM Server application with CLSID
{D63B10C5-BB46-4990-A94F-E40B9D520160}
and APPID
{9CA88EE3-ACB7-47C8-AFC4-AB702511C276}
to the user PHARMA\E0417130 SID (S-1-5-21-299502267-1645522239-682003330-1077462486) from address LocalHost (Using LRPC) running in the application container Unavailable SID (Unavailable). This security permission can be modified using the Component Services administrative tool.Thank you!
Attachments:
Please Log in or Create an account to join the conversation.
08 Aug 2019 08:28 #7611
by SZL
Replied by SZL on topic Cannot browse OPC servers in remote computer
Additional informations:
I read some other posts and find this: www.opclabs.com/forum/browsing/1449-extreemly-slow-in-browsing-opc-servers-on-a-machine
When I integrate this code to my project:
EasyDAClient.SharedParameters.MachineParameters.BrowseFromRegistry = False
after execution the following error message appear, but much faster than in the previous case (1-5 seconds with the above code, ~ 1 minute without the above code).
I think this is not a timeout error, but I cannot see detailed error message. About the error code do you know what is this?
Thank you!
I read some other posts and find this: www.opclabs.com/forum/browsing/1449-extreemly-slow-in-browsing-opc-servers-on-a-machine
When I integrate this code to my project:
EasyDAClient.SharedParameters.MachineParameters.BrowseFromRegistry = False
after execution the following error message appear, but much faster than in the previous case (1-5 seconds with the above code, ~ 1 minute without the above code).
I think this is not a timeout error, but I cannot see detailed error message. About the error code do you know what is this?
Thank you!
Attachments:
Please Log in or Create an account to join the conversation.
07 Aug 2019 10:52 #7610
by SZL
Replied by SZL on topic Cannot browse OPC servers in remote computer
Hello,
Sorry for the delay, I create my new test application with subscription. Before I send my answers to your questions:
Notes:
- I move the InstanceParameters to New()
- We use Try..Catch for every external module. We already found unhandled exceptions in another 3rd party vendor's API. So it is only a new security layer.
- I increase the HoldPeriod to 80000.
Ad 1. Yes, the client is on a different computer. Network problem: I think there are no network related problem because the Kepware and Matrikon clients read the data inside seconds, and refresh it every 1 sec:
The app at right bottom is my new test app with subscription. The full code of the test app:
You can see the response error in the image. The Kepware and Matrikon clients running on the same computer than my test app.
I dont understand why my client not work and other clients works.
Thank you for help!
Sorry for the delay, I create my new test application with subscription. Before I send my answers to your questions:
Notes:
- I move the InstanceParameters to New()
- We use Try..Catch for every external module. We already found unhandled exceptions in another 3rd party vendor's API. So it is only a new security layer.
- I increase the HoldPeriod to 80000.
Ad 1. Yes, the client is on a different computer. Network problem: I think there are no network related problem because the Kepware and Matrikon clients read the data inside seconds, and refresh it every 1 sec:
The app at right bottom is my new test app with subscription. The full code of the test app:
Imports OpcLabs.BaseLib.Collections.Generic.Extensions
Imports OpcLabs.EasyOpc.DataAccess
Imports OpcLabs.EasyOpc.DataAccess.OperationModel
Public Class withSubscription
Private client As New EasyDAClient
Public Sub New()
InitializeComponent()
client.InstanceParameters.HoldPeriods.TopicRead = 80000
client.InstanceParameters.Mode.AllowAsynchronousMethod = True
client.InstanceParameters.Mode.AllowSynchronousMethod = True
client.InstanceParameters.Timeouts.ReadItem = 58000
client.InstanceParameters.Timeouts.BrowseServers = 50000
End Sub
Private Sub BtnStart_Click(sender As Object, e As EventArgs) Handles btnStart.Click
AddHandler client.ItemChanged, Sub(senderCL As Object, eCL As EasyDAItemChangedEventArgs)
If eCL.Succeeded Then
TextBox1.Text &= String.Format("{0}: {1}", eCL.Arguments.ItemDescriptor.ItemId, eCL.Vtq.Value) & vbCrLf
Else
TextBox1.Text &= String.Format("{0} *** Failure: {1}", eCL.Arguments.ItemDescriptor.ItemId, eCL.ErrorMessageBrief) & vbCrLf
End If
End Sub
Dim tags As New List(Of DAItemGroupArguments)
#If DEBUG Then
tags.Add(New DAItemGroupArguments("", "OPCLabs.KitServer.2", "Simulation.Random", 5000, Nothing))
tags.Add(New DAItemGroupArguments("", "OPCLabs.KitServer.2", "Trends.Ramp (1 min)", 5000, Nothing))
tags.Add(New DAItemGroupArguments("", "OPCLabs.KitServer.2", "Trends.Sine (1 min)", 5000, Nothing))
tags.Add(New DAItemGroupArguments("", "OPCLabs.KitServer.2", "Simulation.Register_I4", 5000, Nothing))
#Else
tags.Add(New DAItemGroupArguments("172.25.118.1", "Kepware.KEPServerEX.V5", "Siem.VERXEMS08.FQ_GV12", 5000, Nothing))
tags.Add(New DAItemGroupArguments("172.25.118.1", "Kepware.KEPServerEX.V5", "Siem.VERXEMS08.FT_GV12", 5000, Nothing))
tags.Add(New DAItemGroupArguments("172.25.118.1", "Kepware.KEPServerEX.V5", "Siem.VERXEMS08.FQ_GV13", 5000, Nothing))
tags.Add(New DAItemGroupArguments("172.25.118.1", "Kepware.KEPServerEX.V5", "Siem.VERXEMS08.FT_GV13", 5000, Nothing))
#End If
client.SubscribeMultipleItems(tags.ToArray())
End Sub
End ClassYou can see the response error in the image. The Kepware and Matrikon clients running on the same computer than my test app.
I dont understand why my client not work and other clients works.
Thank you for help!
Attachments:
Please Log in or Create an account to join the conversation.
02 Aug 2019 11:13 #7600
by SZL
Replied by SZL on topic Cannot browse OPC servers in remote computer
Hello,
Thank you!
No.1. OK. In this case I dont understand why can I read from property and why cannot from normal read.
No.2. I create a new test with value age 80000, but the result is timeout again. I send my full code and GUI settings:
You can see the errors in the image (at right side).
(the Property Id in GUI has no effect for anything).
No.3. Yes, I see the subsription is much faster. Do you have source code example how can I implement this in the easiest way? I need read the tag values every minute (the actual value). Thank you!
No.4. I modify the value for client object, but has no effect. I think because the first try throws timeout error.
In my code I move the client object from local object to global object and I not use the "Using" directive.
Thanks!
Thank you!
No.1. OK. In this case I dont understand why can I read from property and why cannot from normal read.
No.2. I create a new test with value age 80000, but the result is timeout again. I send my full code and GUI settings:
Imports System.Globalization
Imports OpcLabs.EasyOpc.DataAccess
Imports OpcLabs.EasyOpc.DataAccess.Generic
Imports OpcLabs.EasyOpc.DataAccess.OperationModel
Imports OpcLabs.EasyOpc.OperationModel
Public Class withSimpleRead
Public CL_GLOBAL As New EasyDAClient()
Public Sub New()
InitializeComponent()
CL_GLOBAL.InstanceParameters.HoldPeriods.TopicRead = 80000
End Sub
Private Sub BtnRead_Click(sender As Object, e As EventArgs) Handles btnRead.Click
btnRead.Enabled = False
txtLog.Text &= "------------------------------------------------------------------" & vbCrLf
Try
Dim item As New DAReadItemArguments(txtServer.Text, txtProgId.Text, txtTag.Text, CInt(txtValueAge.Text))
Dim res = ReadTagValuesFromOPC(item)
For Each i In res
txtLog.Text &= "Result: " & i.ToString() & vbCrLf
Next
Catch ex As Exception
txtLog.Text &= "Error during read OPC tag values: " & ex.Message & vbCrLf
If ex.InnerException IsNot Nothing Then
txtLog.Text &= "InnerException: " & ex.InnerException.Message & vbCrLf
End If
Finally
btnRead.Enabled = True
End Try
End Sub
Public Function ReadTagValuesFromOPC(ByVal tagData As DAReadItemArguments) As DAVtqResult()
CL_GLOBAL.InstanceParameters.Mode.AllowAsynchronousMethod = True
CL_GLOBAL.InstanceParameters.Mode.AllowSynchronousMethod = True
CL_GLOBAL.InstanceParameters.HoldPeriods.TopicRead = 59000
CL_GLOBAL.InstanceParameters.Timeouts.ReadItem = 58000
CL_GLOBAL.InstanceParameters.Timeouts.BrowseServers = 50000
Return CL_GLOBAL.ReadMultipleItems(New DAReadItemArguments() {tagData})
End Function
Private Sub BtnSave_Click(sender As Object, e As EventArgs) Handles btnSave.Click
My.Settings.Save()
End Sub
End Class
You can see the errors in the image (at right side).
(the Property Id in GUI has no effect for anything).
No.3. Yes, I see the subsription is much faster. Do you have source code example how can I implement this in the easiest way? I need read the tag values every minute (the actual value). Thank you!
No.4. I modify the value for client object, but has no effect. I think because the first try throws timeout error.
In my code I move the client object from local object to global object and I not use the "Using" directive.
Thanks!
Attachments:
Please Log in or Create an account to join the conversation.
Moderators: support
Time to create page: 0.084 seconds