validated
equivalent
COPI_0000769
Process Variable Transmitter
IRI:
https://www.inf.ufrgs.br/ontologies/copi/COPI_0000769
Generated onGerado em 2026-09-10
Natural Language DefinitionDefinição em Linguagem Natural
EN
A process variable transmitter (transmitter with indicator) is a transmitter that both indicates a measured process variable locally and transmits its value to a remote system, for any process variable.PT-BR
Um transmissor de variavel de processo (transmissor com indicador) e um transmissor que tanto indica localmente uma variavel de processo medida quanto transmite seu valor para um sistema remoto, para qualquer variavel de processo.Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every process variable transmitter is a transmitter that bears an indicating transmission function, and conversely.First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Definition]∀x (ProcessVariableTransmitter(x) ↔ Transmitter(x) ∧ ∃f (IndicatingTransmissionFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function
[Function axiom: IndicatingTransmissionFunction]∀f (IndicatingTransmissionFunction(f) → ∀p (realizedIn(f,p) → IndicatingTransmissionProcess(p)) ∧ ∃p (IndicatingTransmissionProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised
[Process participation signature]∀x ∀f ((ProcessVariableTransmitter(x) ∧ IndicatingTransmissionFunction(f) ∧ bearerOf(x,f)) →
∃m (PortionOfFluid(m) ∧ participatesIn(m,f)) ∧
∃e1 (VisualIndication(e1) ∧ participatesIn(e1,f)) ∧
∃e2 (InformationContentEntity(e2) ∧ participatesIn(e2,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: ProcessVariableTransmitter
<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" ;
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 "2026-10-07"^^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
:IndicatingTransmissionFunction rdf:type owl:Class ;
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :IndicatingTransmissionProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :IndicatingTransmissionProcess
] ;
rdfs:label "indicating transmission function"@en ;
iof-av:naturalLanguageDefinition "A DesignedFunction that is realized in an IndicatingTransmissionProcess and that consists in both indicating a measured process variable locally and transmitting its value to a remote display, recorder, or control system."@en ;
skos:definition "A DesignedFunction that is realized in an IndicatingTransmissionProcess and that consists in both indicating a measured process variable locally and transmitting its value to a remote display, recorder, or control system."@en .
### Process type
:IndicatingTransmissionProcess rdf:type owl:Class ;
rdfs:subClassOf :MeasurementProcess ;
rdfs:label "indicating transmission process"@en ;
iof-av:naturalLanguageDefinition "A MeasurementProcess (hence planned) in which a sensed process variable is displayed locally and simultaneously converted into a standardized signal transmitted to a remote system."@en ;
skos:definition "A MeasurementProcess (hence planned) in which a sensed process variable is displayed locally and simultaneously converted into a standardized signal transmitted to a remote system."@en .
:MeasurementProcess rdf:type owl:Class .
:IndicatingTransmissionProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :PortionOfFluid
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :VisualIndication
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :InformationContentEntity
] .
### Equipment universal: ProcessVariableTransmitter
:ProcessVariableTransmitter rdf:type owl:Class ;
owl:equivalentClass [
rdf:type owl:Class ;
owl:intersectionOf (
:Transmitter
[
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart)
owl:someValuesFrom :IndicatingTransmissionFunction
]
)
] ;
rdfs:label "process variable transmitter"@en ;
iof-av:naturalLanguageDefinition "A process variable transmitter (transmitter with indicator) is a transmitter that both indicates a measured process variable locally and transmits its value to a remote system, for any process variable."@en ;
skos:definition "A process variable transmitter (transmitter with indicator) is a transmitter that both indicates a measured process variable locally and transmits its value to a remote system, for any process variable."@en ;
iof-av:naturalLanguageDefinition "Um transmissor de variavel de processo (transmissor com indicador) e um transmissor que tanto indica localmente uma variavel de processo medida quanto transmite seu valor para um sistema remoto, para qualquer variavel de processo."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every process variable transmitter is a transmitter that bears an indicating transmission function, and conversely."@en ;
iof-av:firstOrderLogicAxiom "∀x (ProcessVariableTransmitter(x) ↔ Transmitter(x) ∧ ∃f (IndicatingTransmissionFunction(f) ∧ bearerOf(x,f)))"@en ;
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
IndicatingTransmissionFunction
⊑ DesignedFunction
Realized in
IndicatingTransmissionProcess
⊑ MeasurementProcess
Mirrors 'pressure indicating transmitter''s PressureIndicatingAndTransmissionFunction (function_parent=DesignedFunction directly, not a SignalTransmissionFunction subtype) but generalized across any process variable, matching PROCESS VARIABLE TRANSMITTER's own variable-agnostic scope. Not co-extensional with plain SignalTransmissionFunction (Transmitter's own function), since it additionally requires local indication.
2 Genus DeterminationDeterminação do Gênero
Transmitterbfo:Object (BFO_0000030)
Primary source names TRANSMITTER directly as parent, and it is already enriched (exported); used as genus rather than the unenriched intermediate MEASURING INSTRUMENT / STANDARD SIGNAL SENDER hierarchy, matching the colleague's own suggestion to anchor to the existing 'transmitter' cluster.
3 Differentia SpecificaDiferença Específica
∃bearerOf.IndicatingTransmissionFunctionBears both a local indication capability and a remote transmission capability for a process variable, as opposed to a plain transmitter which only transmits.
Functional type: the identity-giving function alone is necessary and sufficient, following the same minimal pattern as the sibling pressure indicating transmitter.
4 Necessary PartsPartes Necessárias
No necessary parts recorded.
No structural component (e.g. a specific display type) is named verbatim in PROCESS VARIABLE TRANSMITTER's own definition or in the ISA-5.1 tag-abbreviation entries, which describe only the letter-code convention, not construction.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'PortionOfFluid', 'count': 1, 'constraints': 'process stream whose variable is sensed, any phase'}
OutputsSaídas
{'type': 'VisualIndication', 'count': 1, 'constraints': 'local visual indication of the measured value'}, {'type': 'InformationContentEntity', 'count': 1, 'constraints': 'standardized signal transmitted to a remote system, carrying the same measured value'}
TransformationTransformação
a process variable sensed, displayed locally, and simultaneously transmitted as a standardized signal to a remote system
Two parallel information outputs (local indication, remote signal) rather than one, matching the dual capability; same transformation_kind as the genus Transmitter and sibling Instrument-family measurement classes.
MetadataMetadados
| COPI IDCOPI ID | COPI_0000769 |
| IRIIRI | https://www.inf.ufrgs.br/ontologies/copi/COPI_0000769 |
| StatusStatus | validated |
| Axiom modeModo | equivalent |
| CreatedCriado | 2026-09-10 |
| UpdatedAtualizado | 2026-09-10 |
| LLM modelModelo LLM | claude-sonnet-5 |
| VersionVersão | 2026-10-07 |
ISA 5.1-2022 — 5_2_1/001_transmitter_with_integral_primary_element_bubble_format.png
Quick factsDados rápidos
| GenusGênero | Transmitter |
| Root classClasse raiz | MaterialArtifact |
| Axiom modeModo | equivalent |
| FunctionFunção | IndicatingTransmissionFunction |
| ProcessProcesso | IndicatingTransmissionProcess |
| PartsPartes | 0 |
Source DefinitionsDefinições nas Fontes
1 source
ISO 15926-4
PROCESS VARIABLE TRANSMITTER
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.
Provenance tiersCamadas de proveniência secondary: none
?
How much independent secondary research backs this term — not how correct it is. "Full" means a non-primary source was quoted directly and covered several distinct aspects of the concept, not just its function. "Partial" means secondary research happened but covered less. "None" means only the primary definition was used. A "full" term can still contain an error, and a "none" term can still be entirely correct — this tracks whether the research step ran, not the result.Quanto de pesquisa secundária independente sustenta este termo — não o quão correto ele é. "Full" significa que uma fonte não-primária foi citada literalmente e cobriu vários aspectos distintos do conceito, não apenas sua função. "Partial" significa que houve pesquisa secundária, mas com cobertura menor. "None" significa que só a definição primária foi usada. Um termo "full" ainda pode conter um erro, e um termo "none" ainda pode estar totalmente correto — isso rastreia se a etapa de pesquisa ocorreu, não o resultado.
primarystandardverbatimiso15926[function]
A <PROCESS VARIABLE TRANSMITTER> is a <MEASURING INSTRUMENT> and a <STANDARD SIGNAL SENDER> and a <TRANSMITTER> for a <PROCESS VARIABLE> measurement
primarystandardverbatimisa5_1[subtype]
ISA 5.1 tag abbreviation 'PIT'. First letter 'P': Pressure. Succeeding letters: 'I' = Indicate, 'T' = Transmit.
primarystandardverbatimisa5_1[subtype]
ISA 5.1 tag abbreviation 'FIT'. First letter 'F': Flow, Flow Rate. Succeeding letters: 'I' = Indicate, 'T' = Transmit.
primarystandardverbatimisa5_1[subtype]
ISA 5.1 tag abbreviation 'LIT'. First letter 'L': Level. Succeeding letters: 'I' = Indicate, 'T' = Transmit.
primarystandardverbatimisa5_1[subtype]
ISA 5.1 tag abbreviation 'TIT'. First letter 'T': Temperature. Succeeding letters: 'I' = Indicate, 'T' = Transmit.
primarystandardverbatimisa5_1[subtype]
ISA 5.1 tag abbreviation 'AIT'. First letter 'A': Analysis. Succeeding letters: 'I' = Indicate, 'T' = Transmit.