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Process Control

Documentation of Plant

Documentation of PlantDocumentation of PlantControl and InstrumentationControl and Instrumentation

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Process Control

Documentation of Plant

Typical DocumentationTypical DocumentationTypical Documentation Plot Plan Physical layout of plant

Process Flow Diagram Major pieces ofequipment in a process area and designoperating condition

P&ID Shows the piping and instrumentation thatwill be installed

Loop Sheet Details field wiring and

instrumentation details.

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Process Control

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Example P&IDExampleExampleP&IDP&ID

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Process Control

Documentation of Plant

Example Loop SheetExampleExampleLoop SheetLoop Sheet

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Process Control

Documentation of Plant

Example - Loop SheetExampleExample--Loop SheetLoop Sheet

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Process Control

Documentation of Plant

Example Loop SheetExampleExampleLoop SheetLoop Sheet

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Process Control

Documentation of Plant

Example Loop SheetExampleExampleLoop SheetLoop Sheet

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Process Control

Documentation of Plant

Example Loop SheetExampleExampleLoop SheetLoop Sheet

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Process Control

Documentation of Plant

ISA S5.1 Tag Number ConventionISA S5.1 Tag Number ConventionISA S5.1 Tag Number ConventionTYPICAL TAG NUMBER

TIC 103 - Instrument Identification or Tag Number

T 103 - Loop Identifier103 - Loop NumberTIC - Function IdentificationT - First-letterIC - Succeeding-Letters

EXPANDED TAG NUMBER

10-PAH-5A - Tag Number10 - Optional Prefix

A - Optional Suffix

Note: Hyphens are optional as separators

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Process Control

Documentation of Plant

ISA S5.1 IDENTIFICATION LETTERSISA S5.1 IDENTIFICATION LETTERSISA S5.1 IDENTIFICATION LETTERS

SwitchSafetyS

TotalizerQuantityQ

ActuatorPositionz

Valve, DamperVibrationV

TransmitTemperatureT

Pressure, vacuumP

LowLevelL

IndicateCurrentI

HighHandH

RatioFlow RateF

DifferentialD

Control

Outputfunction

C

AnalysisA

ModifierReadoutfunction

ModifierMeasured or Initiatingvariable

Succeeding- LettersFirst-letter

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Process Control

Documentation of Plant

Examples Typical Letter CombinationExamplesExamplesTypical Letter CombinationTypical Letter Combination

AIC, AI, AT, AY

FRC, FIC, FC, FY, FE,FQI

II, IIC, IT

LIC, LI, LT, LE,

PIC, PC, PCV, PI, PSH, PIT, PSL

TIC,TCV, TI, TSH, TE, TY

ZC, ZSH, ZSL ZT

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Process Control

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ISA S5.1 Instrument Line SymbolsISA S5.1 Instrument Line SymbolsISA S5.1 Instrument Line Symbols

Instrument supply

or connection to process

Pneumatic Signal

Electric Signal

Internal System Link

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Process Control

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ISA S5.1 General Instrument or Function SymbolISA S5.1 General Instrument or Function SymbolISA S5.1 General Instrument or Function Symbol

Discrete Instrument,field mounted

Discrete instrument,accessible to operator

Shared display,

shared control

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Process Control

Documentation of Plant

ISA S5.1 Actuator SymbolsISA S5.1 Actuator SymbolsISA S5.1 Actuator Symbols Diaphragm, spring-

opposed

Rotary Motor

Digital

Valve Actuator withElectro-pneumatic

converter

M

D

TYI/P

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Process Control

Documentation of Plant

ISA S5.1 Symbols for Other DevicesISA S5.1 Symbols for Other DevicesISA S5.1 Symbols for Other DevicesRestricting Orifice, With

Flow Transmitter

Hand Valve

Inline Measurement

Measurement Element

FT

FT

TE

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Process Control

Documentation of Plant

ISA 5.5 Process SymbolsISA 5.5 Process SymbolsISA 5.5 Process Symbols

Vessel, Jacketed Vessel,Reactor

Atmospheric Tank, Storage

Heat Exchange

Agitator

Pump

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Process Control

Documentation of Plant

Basic Column Control SystemBasic Column Control SystemBasic Column Control System

FC3-2

FT3-2

FC3-4

FT3-4

FC3-3

FT3-3

FC3-1

FT3-1

LT3-1

LC3-1

TT3-2

TC3-2

FC3-5

FT3-5

LT3-2

LC3-2 RSP

RSPRSP

DistillateReceiver

Column

Overheads

Steam

Feed

Reflux

PC3-1

PT3-1

Vent

Storage Tank

Feed Tank

Tray 6 f(x)

Signal CharacterizerRTD

FT3-3

FT3-3

Feedforward summer

Feedforward summer

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Process Control

Documentation of Plant

Continuous Feed and Recycle TanksContinuous Feed and Recycle Tanks

Feed Tank PC1-1

PT1-1

FC1-4

FT1-4

FC1-2

FT1-2

RC1-4

Reactor 1

Reactor 2

Recycle Tank

FC1-1

FT1-1

LT1-1

LC

1-1

Makeup

Reactor 1

FC1-3

FT1-3

RSP

RSP

Recycle