Instrumentation on P&IDs – DEXPI concept
This document describes the DEXPI (Data EXchange in the Process Industry, approach for instrumentation. This approach has major impact on the Proteus schema, which is steered by the Fiatech project IIMM (ISO 15926 Information Models and Proteus Mapping).
The Proteus schema release 4.0.1 covers this DEXPI specification.
Details:
Author: Heiner Temmen, Evonik
Edition: 2016-05-03
This document uses CamelCase writing for RDL (Resource Definition Library) term.
Table of Contents
1Functional und physical Depiction of Instrumentation in P&IDs
1.1Functional Design Objects as ISO 15926 Classes
1.2Asset Specification Objects as ISO 15926 Classes
2Properties of the Instrumentation Objects
2.1InstrumentationLoopFunction
2.2ProcessInstrumentationFunction
2.3ProcessSignalGeneratingFunction
2.4ActuatingFunction
2.5SignalConveyingFunction
2.6ProcessSignalGeneratingSystem
2.7PrimaryElement
2.7.1InlinePrimaryElement
2.7.2OfflinePrimaryElement
2.8Transmitter
2.9ActuatingSystem
2.10ControlledActuator
2.11ControlValve
3Examples
3.1Instrumentation example based on IEC 62424
3.2Instrumentation example based on ISA 5.1
3.3Instrumentation example based on DIN 19227
1Functional und physical Depiction of Instrumentation in P&IDs
The two major current standards to depict instrumentation objects on a P&ID use different approaches:The ISA 5.1 standard with its concepts and symbols supports the physical approach, i.e. the depiction of the instrumentation devices. The IEC 62424 approach considers the functional objects. A former standard DIN 19227 combined both approaches.
Many companies have a mix of these standards as company or as site standards.
In general the P&ID is a major document in the engineering and later on in the operating process.
The engineering process itself begins with the Front End Engineering (Feed), followed by the Basic Engineering and then with the Detail Engineering. The main tasks are the definitions of the Functional Requirements (Feed), the Functional Design (Basic) and the Asset Specification (Detail). First revisions of the P&IDs are developed during the Basic Engineering with the content of the PFD as requirement documentation, i.e. a P&ID starts with some functional aspects and gets more and more asset specification content in the following phases.
Concerning the different standards and different content of a P&ID in its lifecycle, the IIMM concept will support both approaches, the functional and the physical as well.
The diagram below shows the Functional Representation in the top half (blue part) and the more Physical Representation below (green part) together in one model.
1.1Functional Design Objects as ISO 15926 Classes
RDL Designation / RDL URI / DescriptionInstrumentationLoopFunction /
INSTRUMENTATION SYSTEM that has two or more interlinked PROCESS INSTRUMENTATION FUNCTION's that can operate independently and that has a common Loop Identifier.
ProcessInstrumentationFunction /
FunctionalObject that is the union of DETECTING FUNCTION, TRANSDUCING FUNCTION, MEASURING FUNCTION, SIGNAL TRANSMITTING FUNCTION, SIGNAL CONVEYING FUNCTION, PROCESS AMPLIFYING FUNCTION, SIGNAL CONVERTING FUNCTION, PROCESS COMPUTING FUNCTION, BOOLEAN LOGIC EXECUTING FUNCTION, SWITCHING FUNCTION, PROCESS VARIABLE INDICATING FUNCTION, PROCESS VARIABLE RECORDING FUNCTION, PROCESS WARNING FUNCTION, PROCESS PROTECTING FUNCTION, PROCESS VARIABLE CONTROLLING FUNCTION, ACTUATING FUNCTION, and REGULATING FUNCTION.
ProcessSignalGeneratingFunction /
PROCESS INSTRUMENTATION FUNCTION that is the union of SIGNAL CONVEYING FUNCTION, PROCESS AMPLIFYING FUNCTION, SIGNAL CONVERTING FUNCTION, PROCESS COMPUTING FUNCTION, BOOLEAN LOGIC EXECUTING FUNCTION, SWITCHING FUNCTION, PROCESS VARIABLE INDICATING FUNCTION, PROCESS VARIABLE RECORDING FUNCTION, PROCESS WARNING FUNCTION, PROCESS PROTECTING FUNCTION, PROCESS VARIABLE CONTROLLING FUNCTION.
ActuatingFunction /
FunctionalObjectthat is capable of ACTUATING.
SignalConveyingFunction /
CONVEYING FUNCTION that is the capability of CONVEYING a SIGNAL.
ProcessControlFunction /
A requirement for instrumentation and/or control structures relating to Process Engineering.
All new classes in the sense of the PCA RDL will be defined in the RDL2 sandbox as soon as possible.
The centralobject is the ProcessInstrumentationFunction, normally represented by a bubble symbol on the P&ID. Some of them can be collected together to anInstrumentationLoopFunction. One reason could be to collect a local and a central requirement together, another could be that requirements with different categories like ‘P’, ‘D’ and ‘F’ will be fulfilled by one multi ProcessSignalGeneratingSystem.
A ProcessControlFunction is a special ProcessInstrumentationFunction. In term of IEC 62424 it is a PCERequest with category ‘U’.
A ProcessInstrumentationFunction can have ProcessSignalGenerating and ActuatingFunctions as parts in this model as well. Some standards have at this point restrictions, either Process Signal Generating or ActuatingFunctions are allowed. The IIMM concept is more generic. An essential property of the Process Signal Generating and ActuatingFunctionis the location, where this function should take place. With this reference, it is possible to connect to the media and stream data or other operation requirements.
The SignalConveyingFunction objectis used to document the relations between the different objects and to transport information between them.
All the functional objects
- InstrumentationLoopFunction,
- ProcessInstrumentationFunction,
- ProcessControlFunction,
- ProcessSignalGeneratingFunction and
- ActuatingFunction
are fully tagged objects, i.e. they have unique identifiers in the scope of a plant. This IIMM specification provides all kinds of tagging rules. The only rule is that the identifier has to be unique in the scope of the plant.
1.2Asset Specification Objects as ISO 15926 Classes
RDL Designation / RDL URI / RDL DefinitionProcessSignalGeneratingSystem /
PROCESS SIGNAL GENERATING ARTEFACT and SYSTEM that consists of more than one PROCESS INSTRUMENTATION ITEM.
PrimaryElement /
PROCESS INSTRUMENTATION ITEM that has a PRIMARY ELEMENT FUNCTION used for the measurement of a Property or detection of a Status. It is defined independently from any PROCESS INSTRUMENTATION ITEM that is handling that measurement result and that may or may not house that PRIMARY ELEMENT.
Transmitter /
A 'detecting instrument' that generates a process variable signal and converts it into an output signal.
ActuatingSystem /
ACTUATING ARTEFACT that includes all auxilliary instances of PROCESS INSTRUMENTATION ITEM that are necessary for it to function.
ControlledActuator /
A transducer that is intended to convert energy (electric, mechanical, pneumatic or hydraulic) from an external source into kinetic energy (motion) in response to a signal or or power input.
ControlValve /
A valve that can be used to modify (regulate) the fluid flow rate in a process control system. It usually includes an actuator, which responds to a signal from the controlling system and changes the position of the flow controlling element in the valve.
Positioner /
The IIMM model of the physical instrumentation objects is very similar to the IEC 61987 approach. ProcessSignalGenerating and ActuatingSystems can have some device components. Of course, only some of the devices are depicted on a P&ID. Typically, flow PrimaryElements and sometimes Transmitter are sensing device objects. A ControlledActuator, a ControlValve and sometimes a Positioner are actuating device objects on a P&ID. The model is open to add other components like a Solenoid Valve.
ProcessSignalGeneratingSystems have to fulfill the requirements of the ProcessSignalGeneratingFunctions, ActuatingSystems have to fulfill the requirements of the ActuatingFunction. This is the bridge between the functional and the physical objects in this model.
Process Signal Generating and ActuatingSystemsare also fully tagged objects, i.e. they have unique identifiers in the scope of a plant. The devices as parts of a ProcessSignalGenerating or ActuatingSystem are sub tags, i.e. they have a sub tag number, which will be unique only in the scope of the tag.
2Properties of the Instrumentation Objects
The DEXPI P&ID Specification document contains all definitions of the instrumentation objects and their related properties. (
2.1InstrumentationLoopFunction
RDL Designation / Data typeInstrumentationLoopFunctionNumberAssignmentClass / String
2.2ProcessInstrumentationFunction
RDL Designation / Data typeProcessInstrumentationFunctionNumberAssignmentClass / String
DeviceInformationAssignmentClass / String
ProcessInstrumentationFunctionCategoryAssignmentClass / String
ProcessInstrumentationFunctionModifierAssignmentClass / String
ProcessInstrumentationFunctionsAssignmentClass / String
LocationSpecialization / LocationClassification
GmpRelevanceSpecialization / GmpRelevanceClassification
QualityRelevanceSpecialization / QualityRelevanceClassification
SafetyRelevanceClassAssignmentClass / String
TypicalInformationAssignmentClass / String
VendorCompanyNameAssignmentClass / String
VotingSystemRepresentationAssignmentClass / String
GuaranteedSupplyFunctionSpecialization / GuaranteedSupplyFunctionClassification
PanelIdentificationCodeAssignmentClass / String
2.3ProcessSignalGeneratingFunction
RDL Designation / Object Reference / Data typeProcessSignalGeneratingFunctionNumberAssignmentClass / String
SensorTypeAssignmentClass / String
SensingLocation / Reference
2.4ActuatingFunction
RDL Designation / Object Reference / Data typeActuatingFunctionNumberAssignmentClass / String
ActuatingLocation / Reference
2.5SignalConveyingFunction
RDL Designation / Object Reference / Data typeSignalPointNumberAssignmentClass / String
PortStatusSpecialization / PortStatusClassification
SignalConveyingTypeSpecialization / SignalConveyingTypeClassification
SignalProcessControlFunctionsAssignmentClass / String
SignalConveyingFunction from / Reference
SignalConveyingFunction to / Reference
2.6ProcessSignalGeneratingSystem
RDL Designation / Data typeProcessSignalGeneratingSystemNumberAssignmentClass / String
TypicalInformationAssignmentClass / String
2.7PrimaryElement
RDL Designation / Data typeSubTagNameAssignmentClass / String
DeviceTypeNameAssignmentClass / String
2.7.1InlinePrimaryElement
RDL Designation / Data typeInlinePrimaryElement / Reference by InlinePrimaryElementReference
2.7.2OfflinePrimaryElement
RDL Designation / Data typeFluidCodeAssignmentClass / String
LocationNominalDiameterNumericalValueRepresentationAssignmentClass / String
LocationNominalDiameterRepresentationAssignmentClass / String
LocationNominalDiameterStandardSpecialization / NominalDiameterStandardClassification
LocationNominalDiameterTypeRepresentationAssignmentClass / String
InsulationThickness / Length
InsulationTypeAssignmentClass / String
HeatTracingTypeAsignmentClass / String
HeatTracingTypeSpecialization / HeatTracingTypeClassification
LowerLimitHeatTracingTemperature / Temperature
ConnectionNominalDiameterNumericalValueRepresentationAssignmentClass / String
ConnectionNominalDiameterRepresentationAssignmentClass / String
ConnectionNominalDiameterStandardSpecialization / NominalDiameterStandardClassification
ConnectionNominalDiameterTypeRepresentationAssignmentClass / String
2.8Transmitter
RDL Designation / Data typeSubTagNameAssignmentClass / String
DeviceTypeNameAssignmentClass / String
2.9ActuatingSystem
RDL Designation / Data typeActuatingSystemNumberAssignmentClass / String
TypicalInformationAssignmentClass / String
2.10 ControlledActuator
RDL Designation / Data typeSubTagNameAssignmentClass / String
DeviceTypeNameAssignmentClass / String
FailActionRepresentationAssignmentClass / String
FailActionSpecialization / FailActionClassification
2.11 ControlValve
RDL Designation / Object Reference / Data typeSubTagNameAssignmentClass / String
ShutOffValve / Reference by ShutOffValveReference
3Examples
The examples below have not the goal to show good engineering practice. Nevertheless, they are useful to demonstrate how the IIMM model fits to the different instrumentation standards and implementations.
3.1Instrumentation example based on IEC 62424
This IEC 62424 example has its major focus on the functional objects. Nevertheless, there are also some physical objects in. The naming conventions are arbitrary.
Structure of the InstrumentationLoopFunction 1314
P1314L (ProcessInstrumentationFunction) with LocationSpecialization Field,ProcessInstrumentationFunctionCategoryAssignmentClass P and ProcessInstrumentationFunctionsAssignmentClass I
1314C (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass P, ProcessInstrumentationFunctionsAssignmentClassI
PT1314C (ProcessSignalGeneratingFunction)
Fulfilled by a ProcessSignalGeneratingSystem PT1314C
Consists of anOfflinePrimaryElement PE: DeviceTypeNameAssignmentClass Diaphragm; which is connected to a GlobeValve of a PipingNetworkSegment of PipingNetworkSystem LR080
SignalConveyingFunction from P1314C PortStatusSpecialization HighPort to ProcessControlFunction U1313 with SignalProcessControlFunctionsAssignmentClass AS
SignalConveyingFunction from P1314C PortStatusSpecialization HighHighPort to ProcessControlFunction U1312 with SignalProcessControlFunctionsAssignmentClass Z
SignalConveyingFunction from P1314C PortStatusSpecialization LowPort to ProcessControlFunction U1313 with SignalProcessControlFunctionsAssignmentClass S
SignalConveyingFunction from P1314C PortStatusSpecialization LowLowPort to ProcessControlFunction U1313 with SignalProcessControlFunctionsAssignmentClass S
SignalConveyingFunction from the Diaphragm to P1314C
Structure of the InstrumentationLoopFunction 1315
D1315 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass D, ProcessInstrumentationFunctionsAssignmentClassI
SignalConveyingFunction from D1315 PortStatusSpecialization HighPort to ProcessInstrumentationFunction Y1316 with SignalProcessControlFunctionsAssignmentClass S
F1315 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass F, ProcessInstrumentationFunctionsAssignmentClassIC
FT1315 (ProcessSignalGeneratingFunction)
Fulfilled by a ProcessSignalGeneratingSystem FT1315
Consists of anInlinePrimaryElement FE: VenturiTube; which is a PipingComponent of a PipingNetworkSegment of the PipingNetworkSystem LR080
SignalConveyingFunction from the VenturiTube to F1315
SignalConveyingFunction from ProcessInstrumentationFunction Y1316 to F1315
SignalConveyingFunction from PortStatusSpecialization HighPort with SignalProcessControlFunctionsAssignmentClass A
Structure of the ProcessControlFunction U1312 with
ProcessInstrumentationFunctionCategoryAssignmentClass U, ProcessInstrumentationFunctionsAssignmentClass Z, SafetyRelevanceClassAssignmentClass SIL 2 and a graphical Symbol for Safety Relevance
SignalConveyingFunction from U1312 to ProcessInstrumentationFunction Y1317
Structure of the ProcessControlFunction U1313 with
ProcessInstrumentationFunctionCategoryAssignmentClass U, ProcessInstrumentationFunctionsAssignmentClassS
SignalConveyingFunction from U1313 to ProcessInstrumentationFunction Y1316
Structure of the ProcessInstrumentationFunction Y1316 with
LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass Y, ProcessInstrumentationFunctionsAssignmentClassCS
YV1316 (ActuatingFunction)
Fulfilled by an ActuatingSystem YV1316
Consists of a ControlValve YV of type BallValve as a PipingComponent of a PipingNetworkSegment of PipingNetworkSystem LR090 and a ControlledActuator YY with fail closed symbol
SignalConveyingFunction from Y1316 to ControlledActuator YY
Structure of the ProcessInstrumentationFunction Y1317 with
LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass Y, ProcessInstrumentationFunctionsAssignmentClassZ
YV1317 (ActuatingFunction)
Fulfilled by an ActuatingSystem YV1317
Consists of a ControlValve YV of type GeneralValve as a PipingComponent of a PipingNetworkSegment of PipingNetworkSystem LR091 and a ControlledActuator YY with fail closed symbol
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3.2Instrumentation example based on ISA 5.1
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This ISA 5.1 example has its major focus on the physical objects. Nevertheless, there are also some functional objects in. The naming conventions are arbitrary.
Structure of the InstrumentationLoopFunction 2023
F2023 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass F, ProcessInstrumentationFunctionsAssignmentClassIC
FT2023 (ProcessSignalGeneratingFunction)
Fulfilled by a ProcessSignalGeneratingSystem FT2023
Consists of anInlinePrimaryElement FE of DeviceTypeNameAssignmentClass MFM as a PipingComponent with a graphical representation as circle and a label FT2023
FV2023 (ActuatingFunction)
Fulfilled by an ActuatingSystem FV2023, which is labeled: circle with the ActuatingFunctionNumberAssignmentClass FV2023 and has V3 as TypicalInformationAssignmentClass
Consists of a ControlValve FV of type GeneralValve as a PipingComponent of a PipingNetworkSegment of a PipingNetworkSystem
and a ControlledActuator FY of DeviceTypeNameAssignmentClass Diaphragm with FailActionSpecialization FailClose
SignalConveyingFunction from F2023 to the PrimaryElement FE
SignalConveyingFunction from F2023 to the ControlledActuator FY
SignalConveyingFunction from F2023 to an OPC
Structure of the InstrumentationLoopFunction 2022
L2022 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass L, ProcessInstrumentationFunctionsAssignmentClassI and TypicalInformationAssignmentClass L5
LT2022_1 (ProcessSignalGeneratingFunction) (no graphical representation)
LT2022_2 (ProcessSignalGeneratingFunction) (no graphical representation)
SignalConveyingFunction from a PipingNetworkSegment of a PipingNetworkSystem at Nozzle N1 of Dryer D202 to L2022
SignalConveyingFunction from a PipingNetworkSegment of a PipingNetworkSystem at Nozzle N2 of Dryer D202 to L2022
Structure of the InstrumentationLoopFunction 2082
F2082 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass F, ProcessInstrumentationFunctionsAssignmentClassI and TypicalInformationAssignmentClass F4
FT2082 (ProcessSignalGeneratingFunction)
Fulfilled by a ProcessSignalGeneratingSystem FT2082
Consists of an InlinePrimaryElement FE: Orifice Plate of DeviceTypeNameAssignmentClass OFM as a PipingComponent
SignalConveyingFunction from the PrimaryElement FE of FT2082 to F2082
SignalConveyingFunction from F2082 to an OPC
Structure of the InstrumentationLoopFunction 2014
T2014 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass T, ProcessInstrumentationFunctionsAssignmentClassI and TypicalInformationAssignmentClass T5
TT2014 (ProcessSignalGeneratingFunction) (no graphical representation)
SignalConveyingFunction from a PipingNetworkSegment of a PipingNetworkSystem at Nozzle N4 of Dryer D202 to T2014
Structure of the InstrumentationLoopFunction 202
X202 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass X, ProcessInstrumentationFunctionsAssignmentClassPB and TypicalInformationAssignmentClass L
XV200 (ActuatingFunction) (no graphical representation)
SignalConveyingFunction from X202 to an Instrumentation Nozzle of Motor M202 of Pump P202
SignalConveyingFunction from an OPC to X202
I202 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass I, ProcessInstrumentationFunctionsAssignmentClassI and TypicalInformationAssignmentClass M3
IT202 (ProcessSignalGeneratingFunction) (no graphical representation)
SignalConveyingFunction from an Instrumentation Nozzle of Motor M202 of Pump P202 to I202
Structure of the InstrumentationLoopFunction 2007
X2007 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation,
ProcessInstrumentationFunctionCategoryAssignmentClass X, ProcessInstrumentationFunctionsAssignmentClassPB
XV2007 (ActuatingFunction)
Fulfilled by an ActuatingSystem FV2023, which is labeled: circle with the ActuatingSystemNumberAssignmentClass XV2007 and TypicalInformationAssignmentClass V21
Consists of a ControlValve FV of type GeneralValve as a PipingComponent of a PipingNetworkSegment of PipingNetworkSystem
and a ControlledActuator FY of DeviceTypeNameAssignmentClass Piston with FailActionSpecialization FailClose
SignalConveyingFunction from X2007 to the ControlledActuator XY
SignalConveyingFunction from an OPC to X2007
X2007_2 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass X, ProcessInstrumentationFunctionsAssignmentClassLC
SignalConveyingFunction from X2007_2 to the ControlledActuator XY of XV2007
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3.3Instrumentation example based on DIN 19227
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This DIN 19227 example has its major focus on the functional objects. Nevertheless, there are also some physical objects in. With the DIN standard it’s possible to define more complex tasks as a ProcessInstrumentationFunction, e.g. a ProcessInstrumentationFunction can consists of zero, one or two ProcessSignalGeneratingFunctions and zero or N ActuatingFunctions. The naming conventions are arbitrary in this example.
Structure of the InstrumentationLoopFunction 470101
P470101 (ProcessInstrumentationFunction) with LocationSpecialization Field, ProcessInstrumentationFunctionCategoryAssignmentClass P,ProcessInstrumentationFunctionsAssignmentClassI
PT470101 (ProcessSignalGeneratingFunction) (no graphical representation)
SignalConveyingFunction from a BlindFlange of a PipingNetworkSegment of a PipingNetworkSystem (has no label) to P470101
Structure of the InstrumentationLoopFunction 470103
L470103 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass L, ProcessInstrumentationFunctionsAssignmentClassICSA
LT470103 (ProcessSignalGeneratingFunction) (no graphical representation)
SignalConveyingFunction from a BlindFlange of a PipingNetworkSegment of a PipingNetworkSystem at Nozzle N3 of Vessel V-4701 to L470103
Structure of the InstrumentationLoopFunction 470104
T470104 (ProcessInstrumentationFunction) with LocationSpecialization Field, ProcessInstrumentationFunctionCategoryAssignmentClass T, ProcessInstrumentationFunctionsAssignmentClassI
TT470104 (ProcessSignalGeneratingFunction) (no graphical representation)
SignalConveyingFunction from an Instrumentation Nozzle N4 of Vessel V-4701
to T470104
Structure of the InstrumentationLoopFunction 470105
L470105 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass L, ProcessInstrumentationFunctionsAssignmentClassS+
LT470105 (ProcessSignalGeneratingFunction) (no graphical representation)
SignalConveyingFunction from the Nozzle N6 of Vessel V-4701 to L470105
Structure of the InstrumentationLoopFunction 470106
PD470106 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass P, ProcessInstrumentationFunctionModifierAssignmentClass D, ProcessInstrumentationFunctionsAssignmentClassICSA
PDT470106_1 (ProcessSignalGeneratingFunction)
Fulfilled by a ProcessSignalGeneratingSystem PDT470106_1
Consists of an OfflinePrimaryElement PE1 of DeviceTypeNameAssignmentClass Diaphragm, which is connected to a GlobeValve of a PipingNetworkSegment of a PipingNetworkSystem at Nozzle N5 of V-4701
SignalConveyingFunction of type Capillary from the Diaphragm to PD470106
PDT470106_2 (ProcessSignalGeneratingFunction)
Fulfilled by a ProcessSignalGeneratingSystem PDT470106_2
Consists of an OfflinePrimaryElement PE2 of DeviceTypeNameAssignmentClass Diaphragm, to a PipingNetworkSegment of a PipingNetworkSystem, which is connected to N7 of V-4701
SignalConveyingFunction of type Capillary from the Diaphragm to PD470106
Structure of the InstrumentationLoopFunction 470201
TZ470201 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass T, ProcessInstrumentationFunctionsAssignmentClassICSZ
Split range is only a comment
TT470201 (ProcessSignalGeneratingFunction) (no graphical representation)
SignalConveyingFunction from a PipingNetworkSegment of a PipingNetworkSystem 47001 to TZ470201
TV(Z)470201_1 (ActuatingFunction)
Fulfilled by an ActuatingSystem TV(Z)470201_1
Consists of a ControlValve TV1 of type GlobeValve as a PipingComponent of a PipingNetworkSegment of PipingNetworkSystem 47002 and a ControlledActuator TY1 with FailActionSpecialization FailOpen
SignalConveyingFunction from TZ470201 to the ControlledActuator TY1 with SignalProcessControlFunctionsAssignmentClass CS
TV470201_2 (ActuatingFunction)
Fulfilled by an ActuatingSystem TV470201_2
Consists of a ControlValve TV2 of type GlobeValve as a PipingComponent of a PipingNetworkSegment of PipingNetworkSystem 47002 and a ControlledActuator TY2 with FailActionSpecialization FailClose
SignalConveyingFunction from TZ470201 to the ControlledActuator TY2 with SignalProcessControlFunctionsAssignmentClass C
SignalConveyingFunction from TZ470201 to the ProcessInstrumentationFunction UZ470402 with SignalProcessControlFunctionsAssignmentClass ZS
Structure of the InstrumentationLoopFunction 470202
F470202 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass F, ProcessInstrumentationFunctionsAssignmentClassIC
FT470202 (ProcessSignalGeneratingFunction) (no graphical representation)
Fulfilled by a ProcessSignalGeneratingSystem FT470202
Consists of an InlinePrimaryElement FE: Venturi Tube; which is a PipingComponent of a PipingNetworkSegment of the PipingNetworkSystem 47001
SignalConveyingFunction from the PrimaryElement Venturi Tube to F470202
Structure of the InstrumentationLoopFunction 470204
Q470204 (ProcessInstrumentationFunction) with LocationSpecialization Field, ProcessInstrumentationFunctionCategoryAssignmentClass Q, ProcessInstrumentationFunctionsAssignmentClassS
QT470204 (ProcessSignalGeneratingFunction) (no graphical representation)
SignalConveyingFunction from a Blind Flange of a PipingNetworkSegment of the PipingNetworkSystem 47001 to Q470204
SignalConveyingFunction from Q470204 to the ProcessInstrumentationFunction S470302
Structure of the InstrumentationLoopFunction 470205
P470205 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass P, ProcessInstrumentationFunctionsAssignmentClassI
PT470205 (ProcessSignalGeneratingFunction) (no graphical representation)
SignalConveyingFunction from a BlindFlange of a PipingNetworkSegment with GlobeValve of the PipingNetworkSystem 47001 to P470205
Structure of the InstrumentationLoopFunction 470209
F470209 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass F,
ProcessInstrumentationFunctionModifierAssignmentClass Q, ProcessInstrumentationFunctionsAssignmentClassI
FT470209 (ProcessSignalGeneratingFunction) (no graphical representation)
SignalConveyingFunction from a PipingNetworkSegment of the PipingNetworkSystem 47001 to F470209
D470209 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass D, ProcessInstrumentationFunctionsAssignmentClassI
Structure of the InstrumentationLoopFunction 470301
T470301 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass T, ProcessInstrumentationFunctionsAssignmentClassIS
TT470301 (ProcessSignalGeneratingFunction) (no graphical representation)
SignalConveyingFunction from an Instrumentation Nozzle of Pump P-4703 to T470301
SignalConveyingFunction from the ProcessInstrumentationFunction S470302 to T470301
Structure of the InstrumentationLoopFunction 470302
S470302 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation,
ProcessInstrumentationFunctionCategoryAssignmentClass S, ProcessInstrumentationFunctionsAssignmentClassIC
SV470302 (ActuatingFunction) (no graphical representation)
SignalConveyingFunction from S470302 to an Instrumentation Nozzle of Motor M-4703
Structure of the InstrumentationLoopFunction 470304
P470304 (ProcessInstrumentationFunction) with LocationSpecialization Field, ProcessInstrumentationFunctionCategoryAssignmentClass P, ProcessInstrumentationFunctionsAssignmentClassC
PV470304 (ActuatingFunction)
Fulfilled by an ActuatingSystem PV470304
Consists of a ControlValve PV of type GlobeValve as a PipingComponent of a PipingNetworkSegment of PipingNetworkSystem 47002, a ControlledActuator PY of type Self-Regulating
SignalConveyingFunction from P470304 to the ControlledActuator PY
Structure of the InstrumentationLoopFunction 470401
Button in the field is a comment
HZ470401 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass H, ProcessInstrumentationFunctionsAssignmentClassZ
SignalConveyingFunction from HZ470401 to the ProcessInstrumentationFunction UZ470402
Structure of the InstrumentationLoopFunction 470402
1o.o.2 is the value of VotingSystemRepresentationAssignmentClass
UZ470402 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass U, ProcessInstrumentationFunctionsAssignmentClassZ
SignalConveyingFunction from UZ470402 to the ProcessInstrumentationFunction YS(Z)470403 with SignalProcessControlFunctionsAssignmentClass Z
SignalConveyingFunction from UZ470402 to the ControlledActuator TV(Z)470201_1 with SignalProcessControlFunctionsAssignmentClass Z
Structure of the InstrumentationLoopFunction 470403
Y(Z)470403 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass Y, ProcessInstrumentationFunctionsAssignmentClassS(Z)
YV470403 (ActuatingFunction)
Fulfilled by an ActuatingSystem YV470403
Consists of a ControlValve YV of type Butterfly (Form 2) as a PipingComponent of a PipingNetworkSegment of PipingNetworkSystem 47002 and a ControlledActuator YY of type Diaphragm
SignalConveyingFunction from Y(Z)470403 to the ControlledActuator YY with FailActionSpecialization FailOpen
Structure of the InstrumentationLoopFunction 470404
GZ470404 (ProcessInstrumentationFunction) with LocationSpecialization CentralLocation, ProcessInstrumentationFunctionCategoryAssignmentClass G, ProcessInstrumentationFunctionsAssignmentClassOZ
GZ470404 (ProcessSignalGeneratingFunction) (no graphical representation) at a PipingComponent of a PipingNetworkSegment of the PipingNetworkSystem 47002
SignalConveyingFunction from a PipingComponent of a PipingNetworkSegment of PipingNetworkSystem 47002 to GZ470404
SignalConveyingFunction from GZ470404 to the ProcessInstrumentationFunction UZ470402
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