#### 7.1.3.4 IfcAlarmType

| Alarme type
| Alarm / Gefahrenmelder - Typ

The distribution control element type IfcAlarmType defines commonly shared information for occurrences of alarms. The set of shared information may include:

- common properties with shared property sets
- common representations
- common materials
- common composition of elements
- common ports

It is used to define a alarm type specification indicating the specific product information that is common to all occurrences of that product type. The IfcAlarmType may be declared within IfcProject or IfcProjectLibrary using IfcRelDeclares and may be exchanged with or without occurrences of the type. Occurrences of IfcAlarmType are represented by instances of IfcAlarm. Refer to the documentation at IfcAlarm for supported property sets, materials, composition, and ports.

> HISTORY New entity in IFC2x2

## Building Automation

The following concepts are inherited at supertypes:

- IfcRoot: Revision Control
- IfcElementType: Table Mapping

Instance diagram

Identity

The Identity concept applies to this entity.

Exchange |  |  |  |  |
--- | --- | --- | --- | --- | ---
Import |  |  |  |  |
Export |  |  |  |  |

Classification

The Classification concept applies to this entity as shown in Table 55.

Source | Name | Tokens | Description
--- | --- | --- | ---
SmartLabs | Insteon | ('{X:000000..FFFFFF'}) | Hexadecimal number indicating 8-bit device category followed by 8-bit subcategory followed by 8-bit firmware version.
USB | USB | ('{X:0000..FFFF'},{'X:0000..FFFF'}) | Hexadecimal number indicating 16-bit vendor code followed by 16-bit product code.
Zigbee | Zigbee | ('{X:0000..FFFF'}) | Hexadecimal number indicating 16-bit device type.
Table 55 — IfcAlarmType Classification

Exchange |  |  |  |  |
--- | --- | --- | --- | --- | ---
Import |  |  |  |  |
Export |  |  |  |  |

Property Sets for Types

The Property Sets for Types concept applies to this entity as shown in Table 56.

Name
Pset_ManufacturerTypeInformation
Table 56 — IfcAlarmType Property Sets for Types

Exchange |  |  |  |  |
--- | --- | --- | --- | --- | ---
Import |  |  |  |  |
Export |  |  |  |  |

Product Type Assignment

The Product Type Assignment concept applies to this entity as shown in Table 57.

Type | Description
--- | ---
IfcEventType | Defines an event that may be raised by occurrences of the device type.
IfcProcedureType | Defines a procedure that may be invoked on occurrences of the device type.
IfcTaskType | Defines a task that may be scheduled on occurrences of the device type.
Table 57 — IfcAlarmType Product Type Assignment

Exchange |  |  |  |  |
--- | --- | --- | --- | --- | ---
Import |  |  |  |  |
Export |  |  |  |  |

XSD Specification:

<xs:element name="IfcAlarmType" type="ifc:IfcAlarmType" substitutionGroup="ifc:IfcDistributionControlElementType" nillable="true"/>
<xs:complexType name="IfcAlarmType">
<xs:complexContent>
<xs:extension base="ifc:IfcDistributionControlElementType">
<xs:attribute name="PredefinedType" type="ifc:IfcAlarmTypeEnum" use="optional"/>
</xs:extension>
</xs:complexContent>
</xs:complexType>

EXPRESS Specification:

ENTITY IfcAlarmType

| SUBTYPE OF IfcDistributionControlElementType;

PredefinedType | : | IfcAlarmTypeEnum;

| WHERE

CorrectPredefinedType | : | (PredefinedType <> IfcAlarmTypeEnum.USERDEFINED) OR ((PredefinedType = IfcAlarmTypeEnum.USERDEFINED) AND EXISTS(SELF\IfcElementType.ElementType));

END_ENTITY;

EXPRESS-G diagram

Attribute Definitions:

PredefinedType | : | Identifies the predefined types of alarm from which the type required may be set.

Inheritance Graph:

ENTITY IfcAlarmType

| ENTITY IfcRoot

GlobalId | : | IfcGloballyUniqueId;
OwnerHistory | : | OPTIONAL IfcOwnerHistory;
Name | : | OPTIONAL IfcLabel;
Description | : | OPTIONAL IfcText;

| ENTITY IfcObjectDefinition

| INVERSE

HasAssignments | : | SET OF IfcRelAssigns FOR RelatedObjects;
Nests | : | SET [0:1] OF IfcRelNests FOR RelatedObjects;
IsNestedBy | : | SET OF IfcRelNests FOR RelatingObject;
HasContext | : | SET [0:1] OF IfcRelDeclares FOR RelatedDefinitions;
IsDecomposedBy | : | SET OF IfcRelAggregates FOR RelatingObject;
Decomposes | : | SET [0:1] OF IfcRelAggregates FOR RelatedObjects;
HasAssociations | : | SET OF IfcRelAssociates FOR RelatedObjects;

| ENTITY IfcTypeObject

ApplicableOccurrence | : | OPTIONAL IfcIdentifier;
HasPropertySets | : | OPTIONAL SET [1:?] OF IfcPropertySetDefinition;

| INVERSE

Types | : | SET [0:1] OF IfcRelDefinesByType FOR RelatingType;

| ENTITY IfcTypeProduct

RepresentationMaps | : | OPTIONAL LIST [1:?] OF UNIQUE IfcStrippedOptional;
Tag | : | OPTIONAL IfcLabel;

| INVERSE

ReferencedBy | : | SET OF IfcRelAssignsToProduct FOR RelatingProduct;

| ENTITY IfcElementType

ElementType | : | OPTIONAL IfcLabel;

| ENTITY IfcDistributionElementType

| ENTITY IfcDistributionControlElementType

| ENTITY IfcAlarmType

PredefinedType | : | IfcAlarmTypeEnum;

END_ENTITY;

Link to this page