Difference between revisions of "uaCap:InfoAccess EventData"

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'''Description'''
 
'''Description'''
 
<br>
 
<br>
Events represent specific transient occurrences. System configuration changes and system errors are examples of Events. An Event has no direct representation in the Address Space of a Server.
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Events represent specific transient occurrences. Examples are system configuration changes and system errors. Servers expose the types of events they support in the Address Space. When an event occurs, the Server sends an event notification to subscribed Clients.
<br>Implies support of subscribing for and publishing event notifications. Also includes simple filters.
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<br>Each event type includes a set of attributes that define the information provided to Clients when an event occurs. These include among others the event id, time of occurrence, severity, and a message text. Clients select the fields they are interested in.
  
 
'''Usage Considerations'''
 
'''Usage Considerations'''
 
<br>Receive unsolicited notifications of significant occurrences within the system represented by the Server.
 
<br>Receive unsolicited notifications of significant occurrences within the system represented by the Server.
<br>Areas of interest include (but are not limited to); configuration change notifications, Auditing of security or other changes,  general purpose notification, safety limits of equipment, event detection, and abnormal situations
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<br>Areas of interest include (but are not limited to); configuration change notifications, auditing of security or other changes,  general purpose notification, safety limits of equipment, event detection, and abnormal situations.
  
{{uaConformance|TBD <!-- Client -->|
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{{uaConformance|
TBD <!-- Server -->
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[http://opcfoundation.org/UA-Profile/Client/EventSubscriber '''Event Subscriber''']
<!-- Example
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|
* [http://opcfoundation.org/UA-Profile/Server/GlobalCertificateManagement '''Global Certificate Management Server Profile''']
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[http://opcfoundation.org/UA-Profile/Server/StandardEventSubscription '''Eventing Profile''']
* [http://opcfoundation.org/UA-Profile/Client/GlobalCertificateManagement '''Global Certificate Management Client Profile''']
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-->
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}}
 
}}

Revision as of 11:48, 9 February 2015

URN:          https://opcfoundation.org/wiki/index.php/InformationAccess/EventData


Description
Events represent specific transient occurrences. Examples are system configuration changes and system errors. Servers expose the types of events they support in the Address Space. When an event occurs, the Server sends an event notification to subscribed Clients.
Each event type includes a set of attributes that define the information provided to Clients when an event occurs. These include among others the event id, time of occurrence, severity, and a message text. Clients select the fields they are interested in.

Usage Considerations
Receive unsolicited notifications of significant occurrences within the system represented by the Server.
Areas of interest include (but are not limited to); configuration change notifications, auditing of security or other changes, general purpose notification, safety limits of equipment, event detection, and abnormal situations.


Conformance Testing

Client Server

Event Subscriber

Eventing Profile