Pset_AlarmPHistory

Pset_AlarmPHistory

报警历史记录：报警值历史记录的属性。历史：在IFC4中添加。

Name

Type

Description

Enabled

P_REFERENCEVALUE / IfcTimeSeries / IfcBoolean

Enabled

Indicates whether alarm is enabled or disabled over time.

Condition

P_REFERENCEVALUE / IfcTimeSeries / IfcIdentifier

Condition

Indicates alarm condition over time. The range of possible values and their meanings is defined by Pset_AlarmTypeCommon.Condition. An empty value indicates no present alarm condition.

Severity

P_REFERENCEVALUE / IfcTimeSeries / IfcInteger

Severity

Indicates alarm severity over time, where the scale of values is determined by the control system configuration. A zero value indicates no present alarm.

Acknowledge

P_REFERENCEVALUE / IfcTimeSeries / IfcLogical

Acknowledge

Indicates acknowledgement status where False indicates acknowlegement is required and outstanding, True indicates condition has been acknowedged, and Unknown indicates no acknowledgement is required. Upon resetting the condition, then acknowledgement reverts to Unknown.

User

P_REFERENCEVALUE / IfcTimeSeries / IfcIdentifier

User

Indicates acknowledging user over time by identification corresponding to IfcPerson.Identification on an IfcActor.

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