OPC Foundation Message Board

RE: historyUpdateData error Bad_NodeIdUnknown

simard.jonathan@ireq.ca — Fri, 03 Feb 2012 18:28:33 GMT

Thank you jaro for your answer

I have solved my problem. The hda connection between with an OPC/UA source to an OPC/HDA destination working properly with MatrikonOPC UA Wrapper from COM OPC Server.

RE: Session Closed when changing system date

gopalakrishnan — Fri, 03 Feb 2012 17:27:05 GMT

Is this not a critical issue? Any fixes available?

Thanks,

Gopalakrishnan

OPC AE client recollects data in the wrong order

oscargarcia — Fri, 03 Feb 2012 15:48:01 GMT

I have made a configuration between PKS OPC AE server and Plant State Suite client. The communication exists but the information that the client recollets is not in the correct order. Over the value column, I get the descriptor. Over Units of Messure column, I get the value. Over descriptor column, I get another data but not the descriptor. Over Tag name, I get an address.

Someone have an idea why this happen?

RE: OPC/DCOM connection Win 7 client and Server2008 R2 server

Louish — Fri, 03 Feb 2012 13:53:00 GMT

OK, the basic situation is:
When I run the client under local admin (this is just an application, Windows 7), and the server (service, server 2008R2) under local SYSTEM I can:
- connect to the server
- read data synchronously,
- but asynchronous subscription gives Bad quality.

When I set the server to run as local admin, I can't even connect to the server, getting the previously mentioned error.

I guess the asynchronous update problem is a callback issue, but why ?
and why does the local administrator not work at all ?
Are we into some Server 2008 R2 specialities ?

RE: OPC/DCOM connection Win 7 client and Server2008 R2 server

Randy — Fri, 03 Feb 2012 12:35:33 GMT

Yes - I just wanted to make sure you had done the minimum as required in that paper.

You can use any domain account with admin privledges on the machine (this is different from a domain admin).

RE: OPC/DCOM connection Win 7 client and Server2008 R2 server

Louish — Fri, 03 Feb 2012 12:16:31 GMT

Yes several times, and find it easy to make it work under XP. However I am not using Windows XP, but Windows 7 and Server 2008 R2.

Have you read my question ?
Just to clarify: when you say "running the ... processes as Admin" does that have to be Domain Administrator or will local Administrator suffice ?

RE: Session Closed when changing system date

Randy — Fri, 03 Feb 2012 12:05:10 GMT

This behavoir is expected. The Server caches absolute times that do not get updated when the system clock changes.

RE: OPC/DCOM connection Win 7 client and Server2008 R2 server

Randy — Fri, 03 Feb 2012 12:03:15 GMT

Have you read the DCOM for XP whitepaper:
http://www.opcfoundation.org/DownloadFile.aspx?CM=3&RI=326&CN=KEY&CI=282&CU=19

Make sure you follow the instructions there.

RE: Session Closed when changing system date

gopalakrishnan — Fri, 03 Feb 2012 10:45:48 GMT

Hi Randy,

Confirming the issue. I have used the OPC UA Sample Server and Sample Client. As Soon as I change the system date to advanced, OPC Communication is last between Sample Client and Sample server.

The version used is 1.0.250.8.

Our application is using 1.1.331 which also got the similar error although we do not face any server stack exception.

Cannot renew the security session key.

I have copied the server stack exception throwed in Sample server.

Server stack trace:
at System.ServiceModel.Security.SecuritySessionClientSettings`1.ClientSecuritySessionChannel.RenewKey(TimeSpan timeout)
at System.ServiceModel.Security.SecuritySessionClientSettings`1.ClientSecuritySessionChannel.SecureOutgoingMessage(Message& message, TimeSpan timeout)
at System.ServiceModel.Security.SecuritySessionClientSettings`1.SecurityRequestSessionChannel.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Dispatcher.RequestChannelBinder.Request(Message message, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs, TimeSpan timeout)
at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs)
at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)
at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)

Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at Opc.Ua.ISessionChannel.Call(CallMessage request)
at Opc.Ua.SessionChannel.Call(CallMessage request)
at Opc.Ua.SessionClient.Call(RequestHeader requestHeader, CallMethodRequestCollection methodsToCall, CallMethodResultCollection& results, DiagnosticInfoCollection& diagnosticInfos)
at Opc.Ua.Client.Session.Call(NodeId objectId, NodeId methodId, Object[] args)
at Opc.Ua.Client.Subscription.ConditionRefresh()
at Opc.Ua.Sample.Controls.SubscriptionDlg.ConditionRefreshMI_Click(Object sender, EventArgs e)
'

I could wrong in using OPC UA technologies. Please advise if I am doing the things wrong.

Regards,

Gopalakrishnan

Session Closed when changing system date

gopalakrishnan — Fri, 03 Feb 2012 09:28:07 GMT

Hello Group,

We are using OPC UA SDK 1.1.331. When we change the system date, Session.Read throws BadSessionClosed exception, we could not continue data using same connection.

When we connect again, it works as normal till we change the date. Also I found that this issue is not happen when the date is lesser than current date, if we advance the date, then we face this issue.

Any help or pointer will be helpful.

Regards,

Gopalakrishnan

RE: OPC/DCOM connection Win 7 client and Server2008 R2 server

Louish — Fri, 03 Feb 2012 09:01:08 GMT

The server (service) is running as SYSTEM with a certain success as mentioned.
I have tried running it under my account, which has local Administrator priv., but then the client can't even connect. I get the error message:
The COM server does not support the interface 'OpcRcw.Da.IOPCServer'.

This problem could be caused by:
- incorrectly installed proxy/stubs.
- problems with the DCOM security settings.
- a personal firewall (sometimes activated by default).

Is your point that the server should run as domain Administrator ?

RE: BrowseName/DisplayName not unique

Randy — Thu, 02 Feb 2012 12:16:39 GMT

If you have the name available you should be using it as the BrowseName.

RE: Found some issues in OpcHdaResolveTime

asciiker — Thu, 02 Feb 2012 09:24:40 GMT

While I'm waiting for a response/action on the above mentioned bug report, I went ahead to see if I can fix the issue myself.

I have a question pertaining to the already mentioned case (c) of the spec. Here is case (c) again:
c. 31-Mar-2002 + 2 MO = 30-May-2002

I've changed OpcParseOffsets() so that it expands the +2MO offset into +1MO+1MO to achieve landing on 30-May-2002.

Given the above approach and the following NEW case, what should be the output?
NEW CASE: 31-Mar-2002 + 12MO = ?

Expanding +12MO into +1MO(x12) according to the above approach gives "28-Mar-2003" as the final output (because we have to pass through February 2003). Sounds correct? Or it should yield "31-Mar-2003" or "30-Mar-2003"?

RE: BrowseName/DisplayName not unique

jfcabadi — Thu, 02 Feb 2012 08:19:26 GMT

Thanks for the answer.
The client software is supposed to read a property OT2.Source (this Source property is actually a Reference to a Source Object within a finite set of Sources). Then the client selects the appropriate OT2 based on the Source name.

If the client is a general purpose client used for test (eg SDK clients, UAExpert etc...), the human user of the client GUI has to look at the OT2.Source to understand the role of each OT2.

Maybe a better design would be to build the OT2 BrowseName/DisplayName by using the OT2.Source name instead of using a fixed name ?

RE: BrowseName/DisplayName not unique

Randy — Wed, 01 Feb 2012 18:41:55 GMT

This is consistent with UA design principles.

Unique BrowseNames are only required for all targets of hierarchical references within a TypeDefinition.

My question how you expect clients to make sense of the nodes in your address space during ad hoc browsing with GUI.

RE: History Read Data size Limit

Randy — Wed, 01 Feb 2012 18:32:57 GMT

You dont need to know in advance.

Simply call HistoryRead()
StartDate = <some date known to be earlier that the data in the device>
EndDate = UtcNow
NumValuesPerNode = 100

You will get back 100 values starting with the first value in the device archive. No advance knowledge required.

RE: History Read Data size Limit

Satyaharik — Wed, 01 Feb 2012 18:28:59 GMT

Hi Randy,

yes , i am using StartTime , EndTime and NumValuesPerNode . but before this i should know the date range and num of value available in device. but current OPC UA interface doesn't has this as per my understanding.

Thanks,
Satya

BrowseName/DisplayName not unique

jfcabadi — Wed, 01 Feb 2012 18:09:00 GMT

Hello,
in our Address Space, there is the following case.
Objects of a given ObjectType, say OT1, are associated with several Objects of another type, say OT2.
The association is a subtype of NonHierarchicalReferenceType.
The Objects which type is OT2 have a unique NodeId, but they do not have any meaningful name. The client is supposed to recognize and select the OT2 of interest by analyzing the properties of the Objects.
Thus our current design is that the DisplayName and BrowseName of all the OT2 Objects is always the same. All OT2 Objects associated with an OT1 have the same fixed BrowseName.
It means also that all the OT2 Objects associated with a given OT1 have the same BrowsePath.

Do you think this design is compatible with UA specification and sustainable, are will we face problems when developping or using the server or the client ?

RE: History Read Data size Limit

Randy — Wed, 01 Feb 2012 17:43:15 GMT

What you should be doing setting the StartTime/EndTime/NumValuesPerNode

This will allow the client to limit the size of the returned a values and to read the entire set by using continuation points.

RE: History Read Data size Limit

Satyaharik — Wed, 01 Feb 2012 17:27:34 GMT

Hi Randy,

One of device which we have history data can cumulate more than two years of data and customer can download data once in a 6 months or maximum two years data in these cases i experienced "BadEncodingLimitExceeds" error even after increasing the limit in configuration.i am planning to know the total number of records /data size in device before requesting for historyread from client to server so i can send multiple request to the device.

Thanks,
Satya

RE: OPC/DCOM connection Win 7 client and Server2008 R2 server

Randy — Wed, 01 Feb 2012 13:03:00 GMT

DCOM security problems show up all of the time. A security problem with some tags is a vendor specific problem.

However, it is possible the error is always occurring but Matrikon explorer is giving you different errors depending on the context.

Have you tried running the Server and Client processes as Admin?

OPC/DCOM connection Win 7 client and Server2008 R2 server

Louish — Wed, 01 Feb 2012 12:41:45 GMT

Hi

I have a problem using OPC between a Windows 7 client and a Server 2008 R2 server.
The client is running my own .NET based software (and Matrikon OPC Explorer), and the server Kepware KEPServerEX.V5 (and Matrikon Simulation server).

I think most of my setup is right, but it does not quite work. I'll explain my problem using Matrikon Explorer as example (server reactions seems to be the same):
I can browse the network and find the server PC, along with the OPC servers.
Connect to the OPC servers is also fine.
When I attempt to Add items I get the error (pop-up):
"<OPC-SERVER> caused COM/OPC error 0x80040202 on IConnectionPoint.Advise()
GetErrorString() on IOPCServer not implemented or could not resolve error string!
Error string: Could not resolve OPC error code
Additional: Could not establish data callback connection on group ''
Interface address is ..."
However I can add some tags, but they have the Quality "Bad, non-specific".
If I change to Not "Use Async I/O" the Quality changes to "Good, non-specific", and I get good values.
Furthermor I am able to write a new value to a tag.

I think I am having some call-back issue, but I can't find out what to do about it.

Best regards
Louis

RE: History Read Data size Limit

Randy — Wed, 01 Feb 2012 12:37:16 GMT

You can use the Count Aggregate.

But it is not clear why you think you need this information.

RE: historyUpdateData error Bad_NodeIdUnknown

jaro — Wed, 01 Feb 2012 08:09:57 GMT

Answered by email already, but I will log it here as well.

The UaGateway does not support HDA, yet, although the returned error does not tell that very clearly...

RE: History Read Data size Limit

Satyaharik — Wed, 01 Feb 2012 05:11:36 GMT

Hi Randy,

ServerCapabilities node has limits between server and client but client doesn't know about the available data size in the device/in server side so there is a way/method to know the available Historical data size in the device based on that client can send requests.

Thanks,
Satya

RE: Issues with Configuration Tool on Windows 7 machine

ppy2012 — Wed, 01 Feb 2012 04:35:53 GMT

Before installing the Interop components setup the Sample client was working fine, I was able to browse the servers and was able to connect to CentralogOpcDa server though Da sample client, but after installation there was some problem with the Browse Server, Browse server was not working but if suppose I paste the URL for CentralogOpcDa server directly and try to connect then it connectes properly.

RE: Subscription & Reconnect issue

Ingo — Tue, 31 Jan 2012 12:23:08 GMT

Thank you for the clarification.

Kind regards,

Ingo

RE: Subscription & Reconnect issue

Randy — Tue, 31 Jan 2012 12:04:09 GMT

What is happening is the client SDK has a 2 second delay before it decides to use a Republish to get a missed message (to deal with timing issues introduced by the .NET asych i/o APIs).

Your client needs to check the timestamps on the data and make sure you are not overwriting any old data.

The spec now has an explicit flow chart recommending that republishes be called immediately after the reconnect before restarting publishing. This was not implemented in 328.

RE: Found some issues in OpcHdaResolveTime

asciiker — Tue, 31 Jan 2012 09:25:27 GMT

Thanks, I've reported the issue, here is the link:
http://www.opcfoundation.org/mantis/view.php?id=1860

RE: Subscription & Reconnect issue

Ingo — Tue, 31 Jan 2012 08:55:38 GMT

Hello Randy,

Thanks for your reply.

1. I am using the OPC UA SDK Release 1.01, Build 328.

2. The difference between the reconnect and the 'out of order' message is two seconds.

3. I do not know if it comes from a replublish (I don't invoke republish in my code - how can I detemine if that message is based on a republish?). It seems that all messages with SN=6 represent the lost data.

If you like I can send you more debugging information.

RE: What if node's BrowseName is not unique

Randy — Tue, 31 Jan 2012 00:03:22 GMT

As a client developer you must be prepare to deal with duplicate browse names.

That said, if you use the TranslateBrowsePaths method the server is required to return the instance that matches the TypeDefinition as the first element in the array.

RE: What if node's BrowseName is not unique

hjun — Mon, 30 Jan 2012 23:35:58 GMT

I am a client developer, I displayed server's nodes with BrowseName and found some nodes BrowseName were the same. such as, multiple Data Object/.../Sensors/Data, Object/.../Sensors/Data, ..., Then I tried to test with UaExpert, but it displayed nodes with DisplayName, those nodes with same BrowseName are different DisplayName. Browsing and access seems to be ok, but some branches nodes are with the same name on tree display, it look like strange. I don't know what problem will happen for these the same BrowseName.

Thanks

RE: What if node's BrowseName is not unique

Randy — Mon, 30 Jan 2012 23:07:29 GMT

Duplicate BrowseNames are NOT allow in any TypeDefinition.

They are allowed in an Object or Variable instance that is not part of a TypeDefinition.

RE: HistoryRead continuationPoint

Randy — Mon, 30 Jan 2012 23:05:46 GMT

In UA you would meet your requirement by changing the StartTime for the request.

What if node's BrowseName is not unique

hjun — Mon, 30 Jan 2012 23:00:29 GMT

Hi, Randy,

If some nodes are defined with the same browse name in the filed BrowseName in server, is there any problem? Why?

Thank you in advance.

RE: HistoryRead continuationPoint

Piotr — Mon, 30 Jan 2012 21:33:18 GMT

Thanks,

what if client doesn't read continuous data (from start to the end) but wants to read eg. 300 records here and there using offset? i have requirement to now the total number of records, but i need to read just 300.
i'm passing this information as part of continuationpoint, but is it OPC valid way to do it (does opc allows to send continuation point when i return eg. 70 records and i know there is no more left on the server or it should at this point be set to null)?

historyUpdateData error Bad_NodeIdUnknown

simard.jonathan@ireq.ca — Mon, 30 Jan 2012 18:27:38 GMT

Hi there,

I'm trying to insert historical data by using the method historyUpdateData of the class "UaClient" of the Prosys Java SDK. I receive an error message with the status Bad_NodeIdUnknown. The message indicate that "The node id refers to a node that does not exist in the server address space." I have the same message when i'm trying to read histrorical values with the method "historyReadRaw".

However, i'm able to read and write value for the node with the methode "writeValue" and "readValue". I'm also able to red and write historical values with an another HDA Client.

My client is developped with the OPC/UA specification with the Prosys Java SDK. I'm using a OPC/UA Gateway, UAGateway from Unified Automation, for making a link between my client and the source, an OPC HDA server.

Thanks for your help

Jonathan Simard

RE: HistoryRead continuationPoint

Randy — Mon, 30 Jan 2012 17:43:53 GMT

Client must never make any assumptions about the contents of the continuation point.

The Client should already know how many records have been returned so it is not clear what you are gaining by such design.

HistoryRead continuationPoint

Piotr — Mon, 30 Jan 2012 16:48:25 GMT

Hi Randy,

Is it correct to return ContinuationPoint when we return eg. 70 results, but we know that there are no more results left on the server (eg. it was last batch, or there was only 70 results in total).

We use ContinuationPoint to pass totalnumber of records on the server as uint. If we have to set ContinuationPoint to null we don't have this information if our historyread was implementing paging.

Say scenario : we pass request as (request.offset=300 request.limit =100), on the server there is 370 records, we return 70 results and can we return ContinuationPoint initialised to Offset = 370 and TotalCount = 370?

thanks,
Piotr

RE: Found some issues in OpcHdaResolveTime

Randy — Mon, 30 Jan 2012 15:42:50 GMT

Can you put a mantis issue in:
http://www.opcfoundation.org/mantis/my_view_page.php