23:41, EEST
May 15, 2020
Hello,
We are using ProSys SDK v4.5.4. While reading the history using SDK’s API from Microcom OPCUA server we are getting the below exception.
java.security.PrivilegedActionException: com.prosysopc.ua.ServiceException: Bad_EncodingLimitsExceeded (code=0x80080000, description=”TL error 0x80080000″) ServiceResult=Bad_EncodingLimitsExceeded (0x80080000)
Could you please provide any solution to overcome the issue.
Thanks,
Bibhudatta Sahu
10:03, EEST
April 3, 2012
Hi,
The error is that the (OPC UA) Message was too large to be encoded (within the limits client and server negotiated during connection). I assume this is within the server side, since a HistoryReadRequest is typically very small, but the response typically is not.
IF you are using the HistoryRead with ReadRawModifiedDetails (https://reference.opcfoundation.org/Core/docs/Part11/6.4.3/) AND set all 3 values (startTime, endTime, numValuesPerNode), you can use a lower number in numValuesPerNode to reduce the number of values that would be put into single HistoryReadResponse. Within our Browser application, we have usually used 1000.
If you are using trying to read the history of more than a single node (more than one value in https://reference.opcfoundation.org/Core/docs/Part4/5.10.3/ nodesToRead ), you could try reducing the number of them.
Otherwise I would need to know more specifically what parameters you used in the HistoryRead call.
19:30, EEST
May 15, 2020
Hello,
I am using below API to make HistoryRead call.
uaClient.historyReadRaw(NodeId, DateTime, DateTime, UnsignedInteger, boolean, NumericRange, TimeStampToReturn);
=> uaClient.historyReadRaw(nodeId, start_time, end_time, numOfValuesPerNode, return_bounds, index_range, timestamp_to_return);
I modified numOfValuesPerNode to 1. i.e UnsignedInteger numOfValuesPerNode=UnsignedInteger.getFromBits(1);
Still, I am facing the same exception.
Also, while reading the histories I am getting below error in server logs.
[Info] 182.198.1.11:64292: Message type ns=0;i=664 with SL state Established
[Error] Sent TL error 0x80080000
[Info] Ended connection from182.198.1.11:64292
[Info] Accepted connection from 182.198.1.11:64295
[Info] 182.198.1.11:64295: SL security token 1000 issued for channel 1 with security policy None
[Info] 182.198.1.11:64295: Message type ns=0;i=467 with SL state Opening
[Info] 182.198.1.11:64295: Message type ns=0;i=631 with SL state Established
Thanks,
Bibhudatta Sahu
10:03, EEST
April 3, 2012
Hmm…
IF you have the option to send Wireshark logs to uajava-support@prosysopc.com, we can take a look, but if it is really the server side determining the message is too large to encode I’m not sure is there much we can do. However, this would verify that it is really the server side having the problem.
What are the start and end time? Do you know by some other means how much data there would be within that period? Is a single value how large, like in practice it should not matter, unless it is some absurdly big Structure (that a single value would be too much to encode)? Do you have option to ask the manufacturer of the server? Maybe the server just ignores the numOfValuesPerNode option (just a theory though)? Can you try reading the history with a timeperiod that would just have a single value?
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