uaCap:AlarmsConditions PreviousStates

From UaCapabilities
Revision as of 10:42, 16 February 2015 by Karl (Talk | contribs)

Jump to: navigation, search

URN:          https://opcfoundation.org/wiki/index.php/Alarms/PreviousStates

Description
An extension of the Alarm model where previous states of Alarms will be retained until they are acknowledged and/or confirmed.

Usage Considerations

  • Domains, where all transition in an alarm model must be individually responded to by one or more operators.
  • Safety critical systems that require that all Alarms be acknowledged even if it the original problem goes away and the Alarm returns to the inactive state.

Conformance Testing

Client Server

Ability to list and acknowledge states that are older than the current state

Acknowledgement of prvious states required