exported
equivalent
COPI_0000132
Limit Switch
IRI:
https://www.inf.ufrgs.br/ontologies/copi/COPI_0000132
Generated onGerado em 2026-04-13
Natural Language DefinitionDefinição em Linguagem Natural
EN
A limit switch is an instrument that bears a position limit detection function, mechanically actuated by object motion to provide electrical switching signals when predetermined position limits are reached.PT-BR
Um limit switch é um instrumento que possui uma função de detecção de limite de posição, acionado mecanicamente pelo movimento de objetos para fornecer sinais de chaveamento elétrico quando limites de posição predeterminados são atingidos.Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every limit switch is an instrument that has the function to detect position limits and is mechanically operated by object motion to generate electrical switching signals.First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (LimitSwitch(x) ↔ Instrument(x) ∧ ∃f (PositionLimitDetectionFunction(f) ∧ bearerOf(x,f)) ∧ ∃bearerOf.PositionLimitDetectionFunction ⊓ ∃hasInput.MechanicalMotion ⊓ ∃hasOutput.ElectricalSignal) — Steps 1–3: genus + identity-giving function
[Function axiom: PositionLimitDetectionFunction]∀f (PositionLimitDetectionFunction(f) → ∀p (realizedIn(f,p) → PositionLimitDetectionProcess(p)) ∧ ∃p (PositionLimitDetectionProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised
[Process participation signature]∀x ∀f ((LimitSwitch(x) ∧ PositionLimitDetectionFunction(f) ∧ bearerOf(x,f)) →
∃e (ElectricalSignal(e) ∧ participatesIn(e,f)) ∧
processType(f,MeasurementTransduction)) — Step 5: typed participants in the realising process
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix : <https://www.inf.ufrgs.br/ontologies/copi/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix bfo: <http://purl.obolibrary.org/obo/> .
@prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> .
@prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix apv: <http://inf.ufrgs.br/ontologies/apv#> .
### COPI — Core Ontology for Petroleum Installations
### Class module: LimitSwitch
<https://www.inf.ufrgs.br/ontologies/copi>
rdf:type owl:Ontology ;
dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ;
dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ;
dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ;
skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ;
skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ;
skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ;
skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ;
owl:versionInfo "1.1.0-104-g4d16eff" ;
owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ;
owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ;
dcterms:creator "Nicolau Oyhenard dos Santos"@en ;
dcterms:contributor "Cauã Antunes" ;
dcterms:contributor "Haroldo Rojas" ;
dcterms:contributor "Rafael Petry" ;
dcterms:contributor "Régis Romeu" ;
dcterms:contributor "Mara Abel" ;
dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ;
dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ;
dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
dcterms:created "2026-04-08"^^xsd:date ;
dcterms:modified "2026-07-13"^^xsd:date ;
apv:GlobalMinLanguageCoverage "en pt-br" ;
apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ;
apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" .
iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ;
apv:MinAnnotationLength 20 .
### Identity-giving function
:PositionLimitDetectionFunction rdf:type owl:Class ;
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :PositionLimitDetectionProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :PositionLimitDetectionProcess
] ;
rdfs:label "position limit detection function"@en ;
rdfs:label "função de detecção de limite de posição"@pt-br .
### Process type
:PositionLimitDetectionProcess rdf:type owl:Class ;
rdfs:subClassOf iof-core:PlannedProcess ;
rdfs:label "position limit detection process"@en ;
rdfs:label "processo de detecção de limite de posição"@pt-br .
:PositionLimitDetectionProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :ElectricalSignal
] .
### Equipment universal: LimitSwitch
:LimitSwitch rdf:type owl:Class ;
owl:equivalentClass [
rdf:type owl:Class ;
owl:intersectionOf (
:Instrument
[
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :PositionLimitDetectionFunction
]
)
] ;
rdfs:label "limit switch"@en ;
rdfs:label "limit switch"@pt-br ;
iof-av:naturalLanguageDefinition "A limit switch is an instrument that bears a position limit detection function, mechanically actuated by object motion to provide electrical switching signals when predetermined position limits are reached."@en ;
skos:definition "A limit switch is an instrument that bears a position limit detection function, mechanically actuated by object motion to provide electrical switching signals when predetermined position limits are reached."@en ;
iof-av:naturalLanguageDefinition "Um limit switch é um instrumento que possui uma função de detecção de limite de posição, acionado mecanicamente pelo movimento de objetos para fornecer sinais de chaveamento elétrico quando limites de posição predeterminados são atingidos."@pt-br ;
# Disjointness: LimitSwitch and FlowTransmitter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :LimitSwitch :FlowTransmitter ) .
# Disjointness: LimitSwitch and TemperatureTransmitter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :LimitSwitch :TemperatureTransmitter ) .
# Disjointness: LimitSwitch and PressureTransmitter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :LimitSwitch :PressureTransmitter ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
PositionLimitDetectionFunction
⊑ DesignedFunction
Realized in
PositionLimitDetectionProcess
⊑ PlannedProcess
The identity-giving function is detecting when an object reaches a predetermined position limit and generating a switch signal. This combines position sensing with limit enforcement, distinguishing it from general position measurement instruments.
2 Genus DeterminationDeterminação do Gênero
Instrumentbfo:Object (BFO_0000030)
Among the parent candidates, 'INSTRUMENTATION ITEM' maps to 'Instrument' as the most specific appropriate genus. While 'POSITION SWITCH' is more specific, it appears to be a lateral classification rather than a genuine superclass. Limit switches are specialized measuring/control instruments, making Instrument the correct genus level.
3 Differentia SpecificaDiferença Específica
∃bearerOf.PositionLimitDetectionFunction ⊓ ∃hasInput.MechanicalMotion ⊓ ∃hasOutput.ElectricalSignalBears a position limit detection function, takes mechanical motion as input, and produces electrical switching signals when predetermined position limits are reached.
The differentia specifies the unique position limit detection function that distinguishes limit switches from other instruments. The input-output signature (mechanical motion → electrical signal) and the limit-based switching behavior are essential distinguishing characteristics.
4 Necessary PartsPartes Necessárias
No necessary parts recorded.
These parts represent the minimal functional architecture: actuation mechanism responds to position, switch contacts provide electrical output, housing provides protection and mounting.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
—
OutputsSaídas
{'type': 'ElectricalSignal', 'count': 1, 'constraints': 'binary switching state'}
TransformationTransformação
mechanical displacement transduction to electrical switching signal
Limit switches convert mechanical position information into discrete electrical signals, providing binary indication when position limits are reached.
Disjoint WithDisjunto com
FlowTransmitter TemperatureTransmitter PressureTransmitter
C?: FlowTransmitter [kind_ambiguous]. C?: TemperatureTransmitter [kind_ambiguous]. C?: PressureTransmitter [kind_ambiguous]. Different input parameter types (position vs. flow/temperature/pressure) and different output characteristics (binary switching vs. continuous measurement signal) create incompatible process signatures.
MetadataMetadados
| COPI IDCOPI ID | COPI_0000132 |
| IRIIRI | https://www.inf.ufrgs.br/ontologies/copi/COPI_0000132 |
| StatusStatus | exported |
| Axiom modeModo | equivalent |
| CreatedCriado | 2026-04-13 |
| UpdatedAtualizado | 2026-07-12 |
| LLM modelModelo LLM | claude-sonnet-4-20250514 |
| VersionVersão | 2026-07-13 |
ISA 5.1-2022 — 5_1_1/002_located_in_field.png
Quick factsDados rápidos
| GenusGênero | Instrument |
| Root classClasse raiz | MaterialArtifact |
| Axiom modeModo | equivalent |
| FunctionFunção | PositionLimitDetectionFunction |
| ProcessProcesso | PositionLimitDetectionProcess |
| PartsPartes | 0 |
Source DefinitionsDefinições nas Fontes
2 sources
ISO 15926-4
LIMIT SWITCH
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
POSC Caesar
Limit Switch
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.