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01/07/2022
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Hi,
I have developed OPC UA SERVER application using CSharp(C#) language.
I have one requirement,
OPCUA server shall support a notification queue size per monitored item at least equal to the number of value changes that the variable can generate in 500 milliseconds.
How to implement it?
I have used following application configuration file.
<MaxNotificationQueueSize>100</MaxNotificationQueueSize>
<MaxNotificationsPerPublish>1000</MaxNotificationsPerPublish>
05/30/2017
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Depends on the source data.
If you have a source that generates 1 change per microsecond then you need a 500,000 element queue size.
MaxNotificationQueueSize is the right parameter.
01/07/2022
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How did you find queue size is 500,000. can you explain?
05/30/2017
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500 ms == 500,000 microseconds
01/07/2022
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How to configure source that generates 1 change per microsecond in OPC UA Server config file?
I am using below config.
<DiagnosticsEnabled>true</DiagnosticsEnabled>
<MaxSessionCount>100</MaxSessionCount>
<MinSessionTimeout>1000</MinSessionTimeout>
<MaxSessionTimeout>60000</MaxSessionTimeout>
<MaxBrowseContinuationPoints>10</MaxBrowseContinuationPoints>
<MaxQueryContinuationPoints>10</MaxQueryContinuationPoints>
<MaxHistoryContinuationPoints>100</MaxHistoryContinuationPoints>
<MaxRequestAge>600000</MaxRequestAge>
<MinPublishingInterval>500</MinPublishingInterval>
<MaxPublishingInterval>3600000</MaxPublishingInterval>
<PublishingResolution>50</PublishingResolution>
<MaxSubscriptionLifetime>3600000</MaxSubscriptionLifetime>
<MaxMessageQueueSize>100</MaxMessageQueueSize>
<MaxNotificationQueueSize>500000</MaxNotificationQueueSize>
<MaxNotificationsPerPublish>1000</MaxNotificationsPerPublish>
<MinMetadataSamplingInterval>1000</MinMetadataSamplingInterval>
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