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  9. SessioneTimeout doesn't work?

SessioneTimeout doesn't work?

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29 Jul 2021 13:32 #10067 by support
Replied by support on topic SessioneTimeout doesn't work?
An updated, enhanced Knowledge Base article on OPC UA timeout settings: kb.opclabs.com/QuickOPC-UA_Timeout_Settings .

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01 Apr 2020 17:56 #8343 by support
Replied by support on topic SessioneTimeout doesn't work?
Hello,

SessionTimeout has a different purpose - please read: opclabs.doc-that.com/files/onlinedocs/QuickOpc/Latest/User%2...Parameters~SessionTimeout.html .

It says (a quote from OPC specification): "Duration. Requested maximum number of milliseconds that a Session should remain open without activity. If the Client fails to issue a Service request within this interval, then the Server shall automatically terminate the Client Session."

What you are looking for might be OperationTimeout (which defaults to 120000 milliseconds). Unfortunately there is no parameter to make it easy to change. It can still be changed, but it requires more work. Please read:

opclabs.doc-that.com/files/onlinedocs/QuickOpc/Latest/User%2...plication%20Configuration.html

For convenience, I am attaching the default configuration, so that you can modify it and then use, according to the article.

Best regards
 

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01 Apr 2020 12:58 #8339 by Grizzo
SessioneTimeout doesn't work? was created by Grizzo
Hi, we use READMULTIPLE generalli (cannot use SUBSCRIBE) and need to have a maximum response time of 30 seconds.
Sometimes, probably due to OPCServer not responding, the READMULTIPLE call remains stucked for 2 minutes.
I read the 2 mins is the standard timeout of the library and I tried to set it to 30 secs with SessionTimeout parameters, but it does not seem to work.

Beacuse we do not use Isolated client, the SessionTimeout to set is a property of OpcLabs.EasyOpc.UA.EasyUAClient.AdaptableParameters.SessionParameters.
I tried to set it up before and after instantiating EasyUAClient object and opening connection without any results: the timeout is always 2 minutes.

The documentation and/or search in forums didn't give me an answer. What could be wrong? Some suggestion on How To set up the timeout?
A piece of example code would be appreciated.

Thanks.
Massimo

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  9. SessioneTimeout doesn't work?
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