https://brickschema.org/schema/Brick#Alarm
Alarm points are signals (either audible or visual) that alert an operator to an off-normal condition which requires some form of corrective action
Focus nodes of this shape (brick:Alarm) can have the following properties:
| PROPERTY | DESCRIPTION | MIN | MAX | VALUE TYPE | OTHER CONSTRAINTS |
|---|---|---|---|---|---|
| brick:lastKnownValue | last known value The last known value of the Point entity |
0 | 1 | rec:ExceptionEvent sh:IRI |
@prefix brick: <https://brickschema.org/schema/Brick#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix rec: <https://w3id.org/rec#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix tag: <https://brickschema.org/schema/BrickTag#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
brick:Alarm a owl:Class,
sh:NodeShape ;
rdfs:label "Alarm"@en ;
rdfs:seeAlso <https://xp20.ashrae.org/terminology/index.php?term=alarm> ;
rdfs:subClassOf brick:Point ;
owl:disjointWith brick:Command,
brick:Parameter,
brick:Sensor,
brick:Setpoint,
brick:Status ;
skos:definition "Alarm points are signals (either audible or visual) that alert an operator to an off-normal condition which requires some form of corrective action"@en ;
sh:property [ a sh:PropertyShape ;
sh:class rec:ExceptionEvent ;
sh:maxCount 1 ;
sh:name "last known value" ;
sh:nodeKind sh:IRI ;
sh:path brick:lastKnownValue ] ;
sh:rule [ a sh:TripleRule ;
sh:object tag:Alarm ;
sh:predicate brick:hasTag ;
sh:subject sh:this ],
[ a sh:TripleRule ;
sh:object tag:Point ;
sh:predicate brick:hasTag ;
sh:subject sh:this ] ;
brick:hasAssociatedTag tag:Alarm,
tag:Point .