Professional OPC
Development Tools

logos

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.

Error 'BadEncodingLimitsExceeded' During OPC-UA nodes browsing

More
26 Oct 2016 04:54 #4501 by support
It looks like that the amount of data returned by the server (most likely due to high number of nodes) is larger than transport limits.

I tis possible to increase the limits on the client side. To do so, please first look at the "Application Configuration" section in the Concepts document (Section # 12.3 in the documentation for version 5.40). You need to set the parameters so that an external configuration file is used. In the file, under <TransportQuotas>, increase the value in <MaxMessageSize> element from 4194304 to a suitable number.

I am attaching a default config file (the one that QuickOPC uses when not instructed otherwise) in order to help you with creating your own one.


File Attachment:

File Name: UAClientEn...0-26.xml
File Size:4 KB




Alternatively, some servers may also allow you to set the maximum number of nodes returned in one service call, which would also reduce the data size.

Best regards
Attachments:
The following user(s) said Thank You: sun21

Please Log in or Create an account to join the conversation.

More
25 Oct 2016 14:49 #4500 by sun21
Hi,

A got following error:

[10/17/2016 9:32:41 AM] [OpcNodesBrowser] UAException: An OPC-UA operation failure with error code -2146959360 (0x80080000) occurred, originating from 'Opc.Ua.Core'. The inner OPC-UA service exception with service result 'BadEncodingLimitsExceeded' contains details about the problem.
InnerException: OPC-UA service result - Unexpected error processing response.
---- SERVICE RESULT ----
StatusCode: {BadEncodingLimitsExceeded} = 0x80080000 (2148007936)
Description: Unexpected error processing response.
StatusCode: {BadEncodingLimitsExceeded} = 0x80080000 (2148007936)
Description: MaxMessageSize 4194304 < 4449386
AdditionalInfo: >>> MaxMessageSize 4194304 < 4449386
--- at Opc.Ua.BinaryDecoder.DecodeMessage(Type expectedType)
--- at Opc.Ua.BinaryDecoder.DecodeMessage(Stream stream, Type expectedType, ServiceMessageContext context)
--- at Opc.Ua.Bindings.TcpClientChannel.ParseResponse(BufferCollection chunksToProcess)
--- at Opc.Ua.Bindings.TcpClientChannel.ProcessResponseMessage(UInt32 messageType, ArraySegment`1 messageChunk)

I cannot refresh OPC tag list as a result. The node browser function is similar to recommended on the forum. Worked well long time before.
What can be a reason and how to debug it?

Serge

Please Log in or Create an account to join the conversation.

Moderators: support
Time to create page: 0.043 seconds