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DOCUMENT NO REV INSTRUMENT SYMBOLS AND IDENTIFICATION
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DATE DETAILS OF REVISION REV NO
14/03/07 ORIGINAL ISSUE 00
10/06/07 GENERALLY REVISED AND REISSUED 01
03/11/07 GENERALLY REVISED AND REISSUED 02
17/03/08 REVISED WITH MOTOR CONTROL SCHEME 03
16/09/08 REISSUED WITH REVISED MOTOR CONTROL SCHEME 04
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DOCUMENT NO REV INSTRUMENT SYMBOLS AND IDENTIFICATION
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INDEX CLAUSE DESCRIPTION PAGE
1.0 INTRODUCTION 4
2.0 CODES AND STANDARDS 4
3.0 INSTRUMENT IDENTIFICATION 7
4.0 INSTRUMENT TAG NUMBERING 11
ANNEXURE -1: MOTOR CONTROL SCHEMES
ANNEXURE -2: MOV CONTROL SCHEMES
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DOCUMENT NO REV INSTRUMENT SYMBOLS AND IDENTIFICATION
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1.0 INTRODUCTION
1.1 GENERAL
1.1.1 This technical description is issued to cover the minimum technical requirements for Instrument Symbols.
1.1.2 The Instrument Symbols shall be strictly in accordance with this document / codes and standards referred to
in the attached documents.
1.1.3 Any conflict generated within this document shall be referred to the client in writing for approval.
1.2 DEFINITIONS
For this technical description the following definitions are applicable:
Client:
the company acting on client’s behalf.
Contractor / Buyer:
The party which carries out engineering and/or procurement and/or construction.
Seller:
Any manufacturer, supplier or seller who is appointed by the Contractor/Buyer and is
responsible for the supply of materials or equipment or services.
Wherever the word “shall” has been used, its meaning is to be understood as mandatory.
2.0 CODES AND STANDARDS
Codes and standards applicable are as per documents. The basis for this specification is the
ANSI/ISA-S5.1-1984 standard.
Note: - Deviations exist between this specification and ANSI/ISA-S5.1, the main differences being the
use of the certain letter designations, see subsection 3.5.
REFERENCE DOCUMENTS
EECS-50-100-100 Instrument Design Basis
EECS-50-100-005 Instrument Deliverables.
EECS-50-100-004 Instrumentation - Indices and Listing -Nomenclature.
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3.0 INSTRUMENT IDENTIFICATION
3.1 For administrative purposes all instrument components and functions shall be identified by means of a
unique tag number. A tag number is a combination of letters and numbers used to uniquely identify
instrument components and instrument functions. A combination of electrically interconnected
instrument components and functions performing a basic operation is called an instrument loop and
shall be identified by means of a unique loop number. A loop number is the unique identification of a
combination of instrument components and/or instrument functions performing a dedicated instrument
safeguarding, control and/or monitoring function.
3.2 Traditionally, all components/functions shall be shown in individual balloons:
TE-0101 Temperature element (e.g. RTD)
TT-0101 Temperature transmitter
TIC-0101 Temperature controller
TV-0101 Control Valve
Components in the instrument index are similar to those above with format mentioned in paragraph 3.3.
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use
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3.3 Components/functions in the instrument index as per PCD/typical loop are in principle identical to the
traditional listing as follows.
TAG NUMBER: PAATMFFF-SLLLXX
P = Phase number for Expansion project (1= Phase 1 Expansion, 2 = Phase 2 Expansion)
AA = Train or Area.
T = Type (first letter).
M = Modifier.
FFF = Function.
S = First digit of Section number. (Always “0”.)
LLL = Sequence number. (From 001………..999)
XX = Tag number suffix. (A, B, C,…etc.)
e.g:- 110PDT -0103
110PDC -0103
110PDV -0103A
110PDV -0103B
110HS -0174AB
Note: The prefix 110 (Unit No.) shall not appear in the instrument "balloon", but shall be mentioned in a
note on the P&ID, identifying the Train or Area number relating to the instrumentation on the P&ID.
For Unit Numbers please refer Table in 7.1 Annexure-I: Unit Numbers of the Project Engineering
Procedure
For Document Numbering PPPO-0000-000-MGT-000001.
3.4 LOOP NUMBER AND TAG NUMBER FORMAT/BREAKDOWN
The following loop number and tag number format/breakdown applies to all loop-based and stand-alone
Instrumentation.
LOOP NUMBER: PAAT-SLLLX e.g.:- 110P-0103A
P = Phase number for Expansion project (1= Phase 1 Expansion, 2 = Phase 2 Expansion)
AA = Train or Area.
T = Type (first letter).
S = First digit of Section number (Always “0”.)
LLL = Sequence number. (From 001………..999)
X = Loop number suffix. (A, B, C or S)
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cons
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by
the
lend
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ower
for
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inte
nded
use
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3.5 IDENTIFICATION LETTERS
IDENTIFICATION LETTERS
FIRST LETTER SUCCEEDING LETTER
Measured or initiatingvariable
Modifier Readout or passive function
Output function Modifier
A Analysis Active Alarm User's choice
B Burner, combustion
C User's choice Control Close
D Density Differential
E Voltage Sensor (primary element)
F Flow rate Ratio, fraction, factor
G
H Hand HighI Current (electric) Indicate, Glass,
Viewing Device
J Power ScanK Time, time schedule Time rate of
change Control station, panel, cabinet
L Level Lamp / Light Low
M Motor / Drive
N User's choice User's choice User's choice User's choice
O User's choice Orifice restriction Open
P Pressure, vacuum Point(Test connection)
Q Quantity Integrate, totalize
R Radiation Reactive Record (hardwired)
S Speed, frequency Safety Switch
T Temperature Transmit U Multivariable /
Safety(ESD)Multifunction Multifunction
V Vibration,mechanical analysis
Valve,damper, louver, final control element
W Weight Well
X User's choice Skin User's choice User's choice User's choice
Y Solenoid Relay, compute, convert
Z Position
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for
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3.6 SEQUENCE NUMBER
For each measured or initiating variable the loop number sequence will restart. Example: Loop 110P-0103
and loop 110L-0103 may coexist.
3.7 LOOP NUMBER AND TAG NUMBER UNIQUENESS
To maintain identification uniqueness all noncalibrated / Local instruments (*) the numbers shall not
be repeated for the instruments having same measured variable. The nos for transmitters (PT) and local
instruments like Relief valve (PSV), Pressure Gauge (PI) shall not be repeated.
Note: -.* Typical examples of noncalibrated / Local Instruments:
Relief valves/bursting discs.
Self-regulating valves (temperature and pressure).
Level gauges, Temperature Gauges, Pressure gauges, Restriction Orifices, Test
Thermowells, Test Points etc.
3.8 All Field Gauges shall use the function letter “I”, e.g. Pressure Gauge 110PI-0102, see example
S-04 and 110LI-0102, see example S-02, until unless it is specified.
3.9 PRESSURE POINTS
Process pressure points shall not be provided with an instrument loop or tag number.
3.10 TRANSMITTER INTEGRAL INDICATORS
Integral indicators are generally not shown; the use of indicators shall be as described in Instrumentation
design basis. Loop Powered indicators wherever required shall be shown in P&IDs.
3.11 MASS-FLOW LOOP
Where a mass-flow computation is done by the measurement of flow with pressure and temperature
compensation, each individual part of the overall loop (flow, pressure and temperature) shall have a unique
Number e.g. 110F-0232, 110P-0232 and 110T-0232, with the control valve being tagged as part of the flow
Loop (110FV-0232). See example L-15. Loop Number shall be same for all such components if possible.
3.12 RELIEF VALVES
Where there are two (2) or more relief valves installed (e.g. vessel pressure relief) for the same service, then
the tag numbers shall have an alphanumeric suffix, e.g. 110PSV-0107A and 110PSV-0107B. Installed spare
valves shall have "S" suffix.
3.13 SELF-REGULATING VALVES
Self-regulating valves shall have a tag number format using e.g.110PCV-0112. See example S-08.
3.14 CONTROL VALVES
3.14.1 Where a valve is used in a "control only" loop, the valve will have the same identifier and loop sequence
number as the main function component. See examples L-03, L-04, L-06.
3.14.2 Electropneumatic positioners are fitted to control valves, these will not be assigned a tag number but
The
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the
borr
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for
the
inte
nded
use
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DOCUMENT NO REV INSTRUMENT SYMBOLS AND IDENTIFICATION
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will be considered to be part of the valve.
3.14.3 When a control valve is part of a cascade loop, the valve tag number shall have the same tag number type
as the secondary control loop. See example L-05.
3.15 ON-OFF VALVE STATUS INDICATION
In general Limit switches on ON-OFF valves shall have a unique loop and tag number which shall be
derived from the valve tag number. See examples L-09.
3.16 SOLENOID VALVES
3.16.1 The tag number for a solenoid valve connected to an on/off valve shall have the same type letter and loop
sequence number as the valve, e.g. valve 110XV-0103, solenoid valve 110XY-0103. See examples L-10.
3.16.2 The tag number for solenoid valve connected to a control valve (in normal operation, but which is also
included in a safeguarding loop), shall have the number that of the valve e.g. valve 110LV-0140, solenoid
valve110LY-0140. See examples L-06.
3.17 ID/IS BLOCKS
3.17.1 Where a ID/IS block is associated with solenoid valve connected to a control valve, the ID/IS block shall
have a unique tag number and not that of the valve and solenoid valve, e.g. valve 110LV-0140, ID/IS block
110I-0210, solenoid valve 110LY-0140. See example L-06.
3.17.2 Trip signals to motors / MOV’s are outputs from the ESD (i.e. ID/IS -blocks) and shall be tagged as per
ANNEXURE - 1: MOTOR CONTROL SCHEMES &
ANNEXURE - 2: MOV CONTROL SCHEMES. Please refer the same for all signals of Motor and MOV.
3.18 TAGGING OF SIGNALS BETWEEN DCS AND ESD
The instrument index listing shown below each example in this document is based on the requirement for
each instrument component and/or function to have a unique tag number.
For signals which run between two (2) systems (e.g. ESD and DCS), two (2) line items has been introduced
in the instrument index listings; one(1) line item for the signal leaving the system 1(e.g. ESD) and one (1)
line item for the signal received by the system 2(e.g. DCS).
A similar approach may be used for symbols running between other systems (i.e. use of a suffix for signals
in one of the systems). All ESD inputs from Field shall have indication in DCS via Serial Link. Example L-09.
ESD = Safeguarding System (ESD). DCS = Distributed Control System.
3.19 KB BLOCKS
The KB blocks should be used for time sequence control only (see examples L-11). Input and output
signals shall be tagged in analogy with input and output signals from ID/IS blocks.
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the
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for
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inte
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use
.
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3.20 TAG NUMBER SUFFIX
Where multiple identical components occur in a loop (e.g. split-range control, two (2) out of three (3)
shutdown), the instruments shall have the same tag number with tag number suffix A, B, C.
See examples L-04, L-14.
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for
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use
.
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4.0 INSTRUMENT TAG NUMBERING/SYMBOLOGY ON P&ID'S
The following examples shall be used as the basis for all instrument tag numbering and symbology to be
indicated on P&IDs.
4.1 STAND-ALONE INSTRUMENTS
4.1.1 FLOW
4.1.1.1 LOCAL FLOW INDICATING INSTRUMENTS
Example S-01
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARM
I/OTYPE
SIGNAL FROM
SIGNAL TO LOCATION PCD
NO. COMMENTS
110FI-0102 VAR AREA METER FIELD
4.1.2 LEVEL
4.1.2 .1 NONCALIBRATED / LOCAL LEVEL INSTRUMENT
Example S-02
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARMI/O TYPE SIGNAL
FROMSIGNAL
TO LOCATION PCDNO. COMMENTS
110LI-0102 LEVEL GAUGE FIELD
Note: See subsection 3.8.
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the
lend
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the
borr
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for
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use
.
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4.1.2.2 CALIBRATED INSTRUMENT
Example S-03
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARMI/O TYPE SIGNAL
FROMSIGNAL
TO LOCATION PCDNO. COMMENTS
110LI-0104 TANK INDICATOR FIELD
4.1.3 PRESSURE
4.1.3.1 LOCAL PRESSURE INDICATING INSTRUMENT
Example S-04
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARM
I/OTYPE
SIGNAL FROM
SIGNAL TO LOCATION PCD
NO. COMMENTS
110PI-0102 PRESSURE GAUGE FIELD
Note: See subsection 3.8.
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the
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use
.
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4.1.3.2 PRESSURE RELIEF DEVICES
4.1.3.2.1 PRESSURE RELIEF VALVE
Example S-05
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARMI/O TYPE SIGNAL
FROMSIGNAL
TO LOCATION PCDNO. COMMENTS
110PSV-0106 PRESSURE RELIEF VALVE FIELD
4.1.3.2.2 VACUUM RELIEF VALVE
Example S-06
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARMI/O TYPE SIGNAL
FROMSIGNAL
TO LOCATION PCDNO. COMMENTS
110PSV-0108 VAC. RELIEF VALVE FIELD
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ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
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4.1.3.2.3 RUPTURE DISC
Example S-07
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARMI/O TYPE SIGNAL
FROMSIGNAL
TO LOCATION PCDNO. COMMENTS
110PSE-0114 RUPTURE DISC FIELD
4.1.3.2.4 PRESSURE REGULATOR
Example S-08
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARMI/O TYPE SIGNAL
FROMSIGNAL
TO LOCATION PCDNO. COMMENTS
110PCV-0112 PRESSUREREGULATOR
FIELD
Note: See subsection 3.13.
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
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4.1.4 TEMPERATURE
4.1.4.1 LOCAL TEMPERATURE INDICATING INSTRUMENT
Example S-09
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARMI/O TYPE SIGNAL
FROMSIGNAL
TO LOCATION PCDNO. COMMENTS
110TW-0102 THERMOWELL FIELD
110 TI-0102 TEMPERATUREGAUGE FIELD
4.1.4.2 TEMPERATURE POINT
Example S-10
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARMI/O TYPE SIGNAL
FROMSIGNAL
TO LOCATION PCDNO. COMMENTS
110TW-0106 THERMOWELL FIELD Test Point
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
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4.2 LOOP INSTRUMENTS
4.2.1 INDICATION WITH HIGH ALARM (SOFTWARE) IN DCS
Example L-01
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARMI/O TYPE SIGNAL
FROMSIGNAL
TO LOCATION PCDNO. COMMENTS
110PT-0107 PRESSURE TX AI FIELD DCS FIELD
110PI-0107 DCS INDICATOR H SW DCS
110PAH-0107 HIGH ALARM DCS
4.2.2 INDICATION IN DCS AND LOOP POWERED INSTRUMENT
Example L-02
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARM
I/OTYPE
SIGNAL FROM
SIGNAL TO LOCATION PCD NO. COMMENTS
110PT-0204 PRESSURE TX AI FIELD DCS FIELD
110PI-0204 DCS INDICATOR H SW DCS
110PI-0204A LOCAL INDICATOR - LOOP POWERED FIELD
110PAH-0204 HIGH ALARM DCS
Note: 1. In case of conventional type, Local Indicator shall be wired with transmitter loop.
2. In case of FF type, Local Indicator shall be FF compliant to be configured on same segment.
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
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4.2.3 CONTROL LOOP
Example L-03
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARM I/O TYPE SIGNAL
FROMSIGNAL
TO LOCATION PCD NO. COMMENTS
110FE-0158 FLOW ELEMENT ORIFICE FIELD
110FT-0158 D/P TX FLOW AI FIELD DCS FIELD
110FIC-0158 FLOW IND CONTROLLER H,L SW DCS
110FAH-0158 HIGH ALARM DCS
110FAL-0158 LOW ALARM DCS
110FV-0158 GLOBE CONTROL VALVE
AO DCS FIELD FIELD
Note: See paragraph 3.14.1.
4.2.4 SPLIT RANGE CONTROL
Example L-04
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
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Note: See paragraph 3.14.1, 3.20.
4.2.5 CASCADE CONTROL LOOP
Example L-05
TAG NUMBER COMPONENT/-FUNCTION SOFTWARE FUNCTION /
ALARM
I/OTYPE
SIGNAL FROM
SIGNAL TO LOCATION PCD
NO. COMMENTS
110FT-0231 VORTEX FLOW METER AI FIELD DCS FIELD
110FIC-0231 FLOW IND CONTROLLER H SW DCSCASCADE
CONTROL WITH LIC-0210
110FAH-0231 HIGH ALARM DCS
110FV-0231 GLOBE CONTROL VALVE AO DCS FIELD FIELD
110LT-0210 D/P TX LEVEL AI FIELD DCS FIELD
110LIC-0210 LEVEL IND CONTROLLER L SW DCSCASCADE
CONTROL WITH FIC-0231
110LAL-0210 LOW ALARM DCS
Note: See paragraph 3.14.3
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARM
I/OTYPE
SIGNAL FROM
SIGNAL TO LOCATION PCD
NO. COMMENTS
110PT-0160 PRESSURE TX AI FIELD DCS FIELD
110PIC-0160 PRESSURE IND CONTROLLER H,L SW DCS SPLIT RANGE
110PAH-0160 HIGH ALARM H DCS
110PAL-0160 LOW ALARM L DCS
110PV-0160A GLOBE CONTROL VALVE AO DCS FIELD FIELD
110PV-0160B GLOBE CONTROL VALVE AO DCS FIELD FIELD
110PY-0160A FUNCTION BLOCK SW DCS 0-50%
110PY-0160B FUNCTION BLOCK SW DCS 50-100%
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
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4.2.6 ID/IS BLOCK WITH CONTROL VALVE
Example L-06
Note: See paragraphs 3.14.1, 3.15, 3.16.2 and 3.17.1.
TAG NUMBER COMPONENT/-FUNCTION
SOFTW- FUNC/ALM
I/OTYPE
SIGNAL FROM
SIGNAL TO LOCATION PCD
NO. COMMENTS
110HS-0140 HAND SWITCH SI DCS ESD DCS RESET
110LT-0140 D/P TX LEVEL AI FIELD DCS FIELD
110LIC-0140 LEVEL IND CONTROLLER H,L DCS
110LAH-0140 HIGH ALARM DCS
110LAL-0140 LOW ALARM DCS
110LV-0140 GLOBE CONTROL VALVE AO DCS FIELD FIELD
110LT-0180 D/P TX LEVEL AI FIELD ESD FIELD
110LI-0180 DCS INDICATOR LL SI ESD DCS DCS
110LALL-0180 LOW LOW ALARM SI ESD DCS DCS
110LY-0140 SOLENOID VALVE DO ESD FIELD FIELD
110LZSO-0140 LIMIT SWITCH OPEN DI FIELD ESD FIELD
110LZSC-0140 LIMIT SWITCH CLOSE DI FIELD ESD FIELD
110LZAO-0140 STATUS OPEN SI ESD DCS DCS
110LZAC-0140 STATUS CLOSE SI ESD DCS DCS
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
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4.2.7 Refer Annexure -1 for Motor Control Schemes
4.2.8 Refer Annexure -1 for Motor Control Schemes
4.2.9 ID/IS Block with Valve and Status Feedback
Example L-09
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARM
I/OTYPE
SIGNAL FROM
SIGNAL TO
LOCATION
PCDNO. COMMENTS
110PT-0613 PRESSURE TX AI FIELD ESD FIELD
110PI-0613 DCS INDICATOR SI ESD DCS DCS
110UY-0141 SOLENOID VALVE DO ESD FIELD FIELD
110UZSC-0141 LIMIT SWITCH CLOSE DI FIELD ESD FIELD
110UZSO-0141 LIMIT SWITCH OPEN DI FIELD ESD FIELD
110UZAO-1140 STATUS OPEN SI ESD DCS DCS
110UZAC-1140 STATUS CLOSE SI ESD DCS DCS
110UV-0141 GLOBE ON-OFF VALVE FIELD
Note: See paragraph 3.15
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
DOCUMENT NO REV INSTRUMENT SYMBOLS AND IDENTIFICATION
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4.2.10 DCS OPERATED ON/OFF VALVE
Example L-10
TAG NUMBER COMPONENT/-FUNCTION SOFTWARE FUNCTION /
ALARM I/O TYPE SIGNAL
FROMSIGNAL
TO LOCATION PCDNO. COMMENTS
110XY-0103 SOLENOID VALVE DO DCS FIELD FIELD
110XV-0103 GLOBE ON-OFF VALVE FIELD
110XZSC-0103 LIMIT SWITCH CLOSE DI FIELD DCS FIELD
110XZSO-0103 LIMIT SWITCH OPEN DI FIELD DCS FIELD
110XZAO-0103 STATUS OPEN DCS
110XZAC-0103 STATUS CLOSE DCS
110HS-0103A HAND SWITCH FIELD
110HS-0103 HAND SWITCH DCS
Note: See paragraphs 3.16.1
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
DOCUMENT NO REV INSTRUMENT SYMBOLS AND IDENTIFICATION
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4.2.11 KB BLOCK
Example L-11
TAG NUMBER COMPONENT/-FUNCTION SOFTWARE FUNCTION /
ALARM
I/OTYPE
SIGNAL FROM
SIGNAL TO
LOCATION
PCDNO. COMMENTS
110PDT-0570 DIFF. PRESSURE TX AI FIELD DCS FIELD
110PDI-0570 DIFF. PRESS INDICATOR DCS
H,HH,L,LL SW DCS
110PDAHH-0570 D/P ALARM HIGH HIGH DCS
110PDALL-0570 D/P ALARM LOW LOW DCS
110PDAH-0570 DIFF PRESS ALARM HIGH DCS
110PDAL-0570 DIFF PRESS ALARM LOW DCS
110HS-0310 HAND SWITCH DCS STOP SEQ.
110KA-0310A STATUS INDICATOR SW DCS SEQ. ACTIVATED
110KA-0310B ALARM INDICATOR SW DCS COMMON SEQ.FAILURE
110XY-0310A SOLENOID VALVE DO DCS FIELD FIELD
110XY-0310B SOLENOID VALVE DO DCS FIELD FIELD
110XZSC-0310A LIMIT SWITCH CLOSE DI FIELD DCS FIELD
110XZSO-0310A LIMIT SWITCH OPEN DI FIELD DCS FIELD
110XZAC-0310B STATUS CLOSE DCS
110XZSO-0310B STATUS OPEN DCS
110XV-0310A GLOBE ON-OFF VALVE FIELD
110XV-0310B GLOBE ON-OFF VALVE FIELD
Note: See paragraphs 3.19
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
DOCUMENT NO REV INSTRUMENT SYMBOLS AND IDENTIFICATION
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4.2.12 Refer Annexure -2 for MOV Control Schemes
4.2.13 Refer Annexure -2 for MOV Control Schemes
4.2.14 TWO-OUT-OF-THREE VOTING (2OO3)
Example L-14
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARM
I/OTYPE
SIGNAL FROM IGNAL TO LOCATION PCD NO. COMMENTS
110PT-0212A PRESSURE TX HH AI FIELD ESD FIELD
110PT-0212B PRESSURE TX HH AI FIELD ESD FIELD
110PT-0212C PRESSURE TX HH AI FIELD ESD FIELD
110PI-0212A DCS INDICATOR H SI ESD DCS DCS
110PI-0212B DCS INDICATOR H SI ESD DCS DCS
110PI-0212C DCS INDICATOR H SI ESD DCS DCS
110PAH-0212A HIGH ALARM DCS
110PAH-0212B HIGH ALARM DCS
110PAH-0212C HIGH ALARM DCS
110PAHH-0212 HIGH HIGH ALARM SI ESD DCS DCS VOTED TRIP ALARM
Note: See paragraph 3.20
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
DOCUMENT NO REV INSTRUMENT SYMBOLS AND IDENTIFICATION
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4.2.15 FLOW CONTROL, PRESSURE AND TEMPERATURE COMPENSATED
Example L-15
TAG NUMBER COMPONENT/-FUNCTION SOFTWARE FUNCTION /
ALARM
I/OTYPE
SIGNAL FROM
SIGNALTO LOCATION PCD
NO. COMMENTS
110FE-0232 FLOW ELEMENT ORIFICE FIELD
110FT-0232 D/P TX FLOW AI FIELD DCS FIELD
110FIC-0232 FLOW IND CONTROLLER H,L SW DCS PI 0232 & TI 0232 COMPENSATION
110FAL-0232 LOW ALARM DCS
110FAH-0232 HIGH ALARM DCS
110FV-0232 GLOBE CONTROL VALVE AO DCS FIELD FIELD
110TE-0232 RTD FIELD
110TT-0232 TEMP. TRANSMITTER AI FIELD DCS FIELD
110TI-0232 DCS INDICATOR H SW DCS
110TAH-0232 HIGH ALARM DCS
110PT-0232 PRESSURE TX AI FIELD DCS FIELD
110PI-0232 DCS INDICATOR L SW DCS
110PAL-0232 LOW ALARM DCS
Refer to subsection 3.11.
Note: - Maintain same sequence number for such loops if possible.
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
DOCUMENT NO REV INSTRUMENT SYMBOLS AND IDENTIFICATION
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4.2.16 LEVEL CONTROL
Example L-16
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARM
I/OTYPE
SIGNAL FROM
SIGNAL TO
LOCATION PCD NO. COMMENTS
110LT-0101 D/P TX LEVEL AI FIELD DCS FIELD
110LIC-0101 LEVEL IND CONTROLLER H,L SW DCS
110LAL-0101 LOW ALARM DCS
110LAH-0101 HIGH ALARM DCS
110LV-0101 GLOBE CONTROL VALVE
AO DCS FIELD FIELD
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
DOCUMENT NO REV INSTRUMENT SYMBOLS AND IDENTIFICATION
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4.2.17 RATIO CONTROL
Example L-17
TAG NUMBER COMPONENT/-FUNCTION
SOFTWARE FUNCTION /
ALARM I/O TYPE SIGNAL
FROMSIGNAL
TO LOCATION PCDNO. COMMENTS
110FE-0102 FLOW ELEMENT ORIFICE FIELD
110FT-0102 D/P TX FLOW AI FIELD DCS FIELD
110FI-0102 DCS INDICATOR H,L SW DCS
110FAL-0102 LOW ALARM DCS
110FAH-0102 HIGH ALARM DCS
110FE-0103 FLOW ELEMENT ORIFICE FIELD
110FT-0103 D/P TX FLOW AI FIELD DCS FIELD
110FI-0103 DCS INDICATOR H,L SW DCS
110FAL-0103 LOW ALARM DCS
110FAH-0103 HIGH ALARM DCS
110FFIC-0104 RATIO IND CONTROLLER RATIO SW DCS RATIO CONTROL
110FV-0104 GLOBE CONTROL VALVE AO DCS FIELD FIELD
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
DOCUMENT NO REV INSTRUMENT SYMBOLS AND IDENTIFICATION
EECS-50-100-003 04
ESSAR ENGINEERING CENTRE , MUMBAI Page 27 of 28 GE
N-0
04-R
1
4.2.18 SIGNAL SELECTOR SWITCH
Example L-18
TAG NUMBER COMPONENT/-FUNCTION SOFTWARE FUNCTION /
ALARM
I/OTYPE
SIGNAL FROM
SIGNAL TO
LOCATION
PCDNO. COMMENTS
110FE-0510 FLOW ELEMENT ORIFICE FIELD
110FT-0510 D/P TX FLOW AI FIELD DCS FIELD
110FIC-0510 FLOW IND CONTROLLER H SW DCS
110FAH-0510 HIGH ALARM DCS
110FV-0510 GLOBE CONTROL VALVE AO DCS FIELD FIELD
110FE-0512 FLOW ELEMENT ORIFICE FIELD
110FT-0512 D/P TX FLOW AI FIELD DCS FIELD
110FIC-0512 FLOW IND CONTROLLER H SW DCS
110FAH-0512 HIGH ALARM DCS
110FV-0512 GLOBE CONTROL VALVE AO DCS FIELD FIELD
110LT-0216 D/P TX LEVEL AI FIELD DCS FIELD
110LIC-0216 LEVEL IND CONTROLLER SW DCS
110HS-0710 SELECTOR SWITCH DCS
The
dra
win
g, d
esig
n an
d de
tails
giv
en o
n th
is fo
rmat
are
the
prop
erty
of E
SS
AR
EN
GIN
EE
RIN
G C
EN
TR
E. T
hey
are
mer
ely
loan
ed o
n th
e bo
rrow
er's
exp
ress
agr
eem
ent t
hat t
hey
will
not
be
rep
rodu
ced,
cop
ied,
ex
hibi
ted
or u
sed,
exc
ept i
n th
e lim
ited
way
per
mitt
ed b
y a
writ
ten
cons
ent g
iven
by
the
lend
er to
the
borr
ower
for
the
inte
nded
use
.
DOCUMENT NO REV INSTRUMENT SYMBOLS AND IDENTIFICATION
EECS-50-100-003 04
ESSAR ENGINEERING CENTRE , MUMBAI Page 28 of 28 GE
N-0
04-R
1
4.2.19 Refer Annexure -1 for Motor Control Schemes
4.2.20 Refer Annexure -1 for Motor Control Schemes
4.2.21 Refer Annexure -1 for Motor Control Schemes
AN
NEX
UR
E-1
: M
OTO
R C
ON
TR
OL S
CH
EM
ES
P &
ID
SY
MB
OL
DES
CR
IPTIO
NT
YP
ICA
L -
5 :
SIG
NA
LS
AN
D C
OM
MA
ND
S F
OR
TH
E M
OT
OR
S W
ITH
MA
NU
AL
ST
AR
T &
DC
S IN
TE
RL
OC
K S
TO
PN
ote
s
Tag
Nu
mb
erI/O
Typ
eM
L* -0
123
SI /
DI
No
te 1
0M
L*R
-012
3S
IM
S*S
-012
3S
IM
S*T
-012
3D
O
No
te 1
1
TY
PIC
AL
- 6
: S
IGN
AL
S A
ND
CO
MM
AN
DS
FO
R T
HE
MO
TO
RS
WIT
H D
CS
INT
ER
LO
CK
- A
UT
O S
TA
RT
& S
TO
PN
ote
s
Tag
Nu
mb
erI/O
Typ
eM
L* -0
123
SI /
DI
No
te 1
0M
L*R
-012
3S
IM
S*S
-012
3D
0M
S*T
-012
3D
O
TY
PIC
AL
- 7
: S
IGN
AL
S A
ND
CO
MM
AN
DS
FO
R T
HE
MO
TO
RS
WIT
H D
CS
ST
OP
INT
ER
LO
CK
/ M
AN
UA
L S
TO
PN
ote
s
Tag
Nu
mb
erI/O
Typ
eM
L* -0
123
SI /
DI
No
te 9
MS
*T -0
123
DO
TY
PIC
AL
- 8
: S
IGN
AL
S A
ND
CO
MM
AN
DS
FO
R T
HE
MO
TO
RS
WIT
H E
SD
INT
ER
LO
CK
- A
UT
O S
TA
RT
No
tes
Tag
Nu
mb
erI/O
Typ
eM
L* -0
123
SI /
DI
No
te 1
0M
L*R
-012
3S
IM
S*X
-012
3D
0M
S*T
-012
3D
O
11. F
or
ES
D In
terl
ock
, in
stru
men
t ta
g n
o. s
hal
l be
as f
ollo
ws:
Fo
r p
um
p, 1
38-P
-000
1A, E
SD
Inte
rlo
ck t
ag s
hal
l be
like
- 13
8MS
PX
-000
1A. W
her
e P
= P
um
p, X
= E
SD
Inte
rlo
ck c
om
man
d
8. S
TO
P f
rom
fie
ld(L
CS
) an
d D
CS
(if
ind
icat
ed)
shal
l alw
ays
be
avai
lab
le ir
resp
ecti
ve o
f L
oca
l-R
emo
te s
elec
tio
n.
4. If
any
add
ition
al s
igna
l(s) a
re re
quire
d to
be
conf
igur
ed in
DC
S o
r ES
D, t
he s
ame
shal
l be
indi
cate
d as
per
the
lege
nds
shee
t.
11. I
f S
TO
P b
y o
per
ato
r fr
om
DC
S is
als
o r
equ
ired
, th
en t
he
sam
e sh
all b
e in
dic
ated
as
sho
wn
.
3. In
terlo
ck :
STA
RT
& S
TOP
from
DC
S s
hall
be b
ased
on
proc
ess
inte
rlock
7. If
RE
MO
TE is
sel
ecte
d, th
e m
otor
sha
ll S
TAR
T ba
sed
on D
CS
inte
rlock
. If L
OC
AL
is s
elec
ted,
the
mot
or c
an S
TAR
T fro
m fi
eld
(LC
S).
In
LOC
AL
mod
e, S
TAR
T in
terlo
ck(D
CS
) sha
ll re
mai
n by
pass
ed.
9. L
OC
AL
-RE
MO
TE
sel
ecti
on
fro
m f
ield
is r
equ
ired
wh
ere
ST
AR
T f
rom
Rem
ote
(DC
S/E
SD
) is
co
nsi
der
ed.
10. I
f R
UN
sta
tus
sig
nal
is u
sed
fo
r in
terl
ock
in D
CS
or
ES
D, t
he
con
nec
tio
n s
hal
l be
ind
icat
ed a
s H
AR
DW
IRE
D.
4. If
any
add
ition
al s
igna
l(s) a
re re
quire
d to
be
conf
igur
ed in
DC
S o
r ES
D, t
he s
ame
shal
l be
indi
cate
d as
per
the
lege
nds
shee
t.3.
Inte
rlock
: S
TOP
com
man
d sh
all b
e ge
nera
ted
by "O
R-in
g" b
etw
een
proc
ess
inte
rlock
and
man
ual S
TOP
by
DC
S o
pera
tor.
1. L
OC
AL
: All
mot
ors
shal
l hav
e S
TAR
T &
STO
P a
nd L
OC
AL-
RE
MO
TE s
elec
tion
faci
lity
in th
e fie
ld o
n LC
S.
2. D
CS
: R
UN
and
RE
MO
TE s
tatu
s is
use
d as
mon
itorin
g si
gnal
s he
nce
shal
l be
via
seria
l lin
k.S
TOP
com
man
d ba
sed
on in
terlo
ck fr
om D
CS
sha
ll be
via
har
dwire
d.S
TAR
T co
mm
and
by o
pera
tor f
rom
DC
S s
hall
be c
onne
cted
via
ser
ial l
ink
as s
how
n.
2. D
CS
: R
UN
and
RE
MO
TE s
tatu
s is
use
d as
mon
itorin
g si
gnal
s he
nce
shal
l be
via
seria
l lin
k.S
TAR
T &
STO
P c
omm
ands
are
gen
erat
ed b
ased
on
proc
ess
inte
rlock
, hen
ce s
hall
be v
ia h
ardw
ired.
10. I
f R
UN
sta
tus
sig
nal
is u
sed
fo
r in
terl
ock
in D
CS
or
ES
D, t
he
con
nec
tio
n s
hal
l be
ind
icat
ed a
s H
AR
DW
IRE
D.
3. In
terlo
ck :
STO
P c
omm
and
shal
l be
gene
rate
d by
"OR
-ing"
bet
wee
n pr
oces
s in
terlo
ck a
nd m
anua
l STO
P b
y D
CS
ope
rato
r.
5. *
= E
quip
men
t Cod
e Le
tter a
s pe
r Leg
end
shee
t Tab
le-1
. (M
L*R
- R
emot
e st
atus
feed
back
to D
CS
.)6.
Sta
rt - S
top
and
Loca
l-Rem
ote
sele
ctor
sw
itche
s of
LC
S s
hall
not b
e in
dica
ted
in P
&ID
.
6. S
tart
- Sto
p an
d Lo
cal-R
emot
e se
lect
or s
witc
hes
of L
CS
sha
ll no
t be
indi
cate
d in
P&
ID.
7. T
here
sha
ll be
OR
logi
c in
inte
rlock
. Mot
or s
hall
stop
eith
er b
y P
roce
ss in
terlo
ck o
r by
oper
ator
STO
P.
8. L
OC
AL
-RE
MO
TE
sel
ecti
on
fro
m f
ield
is n
ot
req
uir
ed, w
her
e o
nly
ST
OP
fro
m R
emo
te(D
CS
/ES
D)
is c
on
sid
ered
.
8. S
TO
P f
rom
LC
S(f
ield
) an
d D
CS
sh
all a
lway
s b
e av
aila
ble
irre
spec
tive
of
Lo
cal-
Rem
ote
sel
ecti
on
.9.
LO
CA
L-R
EM
OT
E s
elec
tio
n f
rom
fie
ld is
req
uir
ed w
her
e S
TA
RT
fro
m R
emo
te(D
CS
/ES
D)
is c
on
sid
ered
.
5. *
= E
quip
men
t Cod
e Le
tter a
s pe
r Leg
end
shee
t Tab
le-1
. (M
L*R
- R
emot
e st
atus
feed
back
to D
CS
.)6.
Sta
rt - S
top
and
Loca
l-Rem
ote
sele
ctor
sw
itche
s of
LC
S s
hall
not b
e in
dica
ted
in P
&ID
.7.
If R
EM
OTE
is s
elec
ted,
the
mot
or s
hall
STA
RT
base
d on
DC
S in
terlo
ck. I
f LO
CA
L is
sel
ecte
d, th
e m
otor
sha
ll be
ope
rate
d fro
m fi
eld
(LC
S).
In L
OC
AL
mod
e, S
TAR
T in
terlo
ck s
hall
rem
ain
bypa
ssed
.
1. L
OC
AL
: All
mot
ors
shal
l hav
e S
TAR
T &
STO
P a
nd L
OC
AL-
RE
MO
TE s
elec
tion
faci
lity
in th
e fie
ld o
n LC
S.
1. L
OC
AL
: All
mot
ors
shal
l hav
e S
TAR
T &
STO
P fa
cilit
y in
the
field
on
LCS
.2.
DC
S :
RU
N s
tatu
s is
use
d as
mon
itorin
g si
gnal
s he
nce
shal
l be
via
seria
l lin
k.S
TOP
com
man
d ba
sed
on in
terlo
ck fr
om D
CS
sha
ll be
via
har
dwire
d.If
ST
OP
by
op
erat
or
fro
m D
CS
is r
equ
ired
, th
en t
he
sam
e sh
all b
e in
dic
ated
as
sho
wn
.
10. I
f R
UN
sta
tus
sig
nal
is u
sed
fo
r in
terl
ock
in D
CS
or
ES
D, t
he
con
nec
tio
n s
hal
l be
ind
icat
ed a
s H
AR
DW
IRE
D.
9. If
RU
N s
tatu
s si
gn
al is
use
d f
or
inte
rlo
ck in
DC
S o
r E
SD
, th
e co
nn
ecti
on
sh
all b
e in
dic
ated
as
HA
RD
WIR
ED
.
1. L
OC
AL
: All
mot
ors
shal
l hav
e S
TAR
T &
STO
P a
nd L
OC
AL-
RE
MO
TE s
elec
tion
faci
lity
in th
e fie
ld o
n LC
S.
7. If
RE
MO
TE is
sel
ecte
d, th
e m
otor
sha
ll S
TAR
T/S
TOP
bas
ed o
n D
CS
inte
rlock
. If L
OC
AL
is s
elec
ted,
the
mot
or s
hall
be o
pera
ted
from
field
(LC
S).
In L
OC
AL
mod
e, D
CS
STA
RT
inte
rlock
sha
ll re
mai
n by
pass
ed.
9. L
OC
AL
-RE
MO
TE
sel
ecti
on
fro
m f
ield
is r
equ
ired
wh
ere
ST
AR
T f
rom
Rem
ote
(DC
S/E
SD
) is
co
nsi
der
ed.
8. S
TO
P f
rom
LC
S(f
ield
) an
d D
CS
(in
terl
ock
) sh
all a
lway
s b
e av
aila
ble
irre
spec
tive
of
Lo
cal-
Rem
ote
sel
ecti
on
.
6. S
tart
- Sto
p sw
itche
s of
LC
S s
hall
not b
e in
dica
ted
in P
&ID
.5.
* =
Equ
ipm
ent C
ode
Lette
r as
per L
egen
d sh
eet T
able
-1.
4. If
any
add
ition
al s
igna
l(s) a
re re
quire
d to
be
conf
igur
ed in
DC
S, t
he s
ame
shal
l be
indi
cate
d as
per
the
lege
nds
shee
t.
3. In
terlo
ck :
STA
RT
from
ES
D s
hall
be b
ased
on
proc
ess
inte
rlock
.4.
If a
ny a
dditi
onal
sig
nal(s
) are
requ
ired
to b
e co
nfig
ured
in D
CS
, the
sam
e sh
all b
e in
dica
ted
as p
er th
e le
gend
s sh
eet.
2. D
CS
: R
UN
and
RE
MO
TE s
tatu
s is
use
d as
mon
itorin
g si
gnal
s he
nce
shal
l be
via
seria
l lin
k.If
ST
OP
by
op
erat
or
fro
m D
CS
is r
equ
ired
, th
e sa
me
shal
l be
ind
icat
ed v
ia s
eria
l lin
k as
sh
ow
n.
5. *
= E
quip
men
t Cod
e Le
tter a
s pe
r Leg
end
shee
t Tab
le-1
. (M
L*R
- R
emot
e st
atus
feed
back
to D
CS
.)
S T
ML*
0123
T
MS
*
0123
To b
e co
nnec
ted
to
proc
ess
para
met
erM
I
0001
MS
*01
23
No
te-6
*M-0
123
S T
ML*
0123
T
MS
*
0123
To b
e co
nnec
ted
to
proc
ess
para
met
erI
0001
MS
*01
23
ML*
R
0123
No
te-6
,9
*M-0
123
L R
MS
*01
23
S T
ML*
0123
To b
e co
nnec
ted
to
proc
ess
para
met
erM
I
0001
MS
*01
23
ML*
R
0123
No
te-6
,9
*M-0
123
L R
MS
*01
23
No
te-2
No
te-2
M
No
te-1
0
No
te-9
No
te-1
0
S T
ML*
0123
To b
e co
nnec
ted
to
proc
ess
para
met
erM
I
0001
MS
*01
23
ML*
R
0123
No
te-6
,9
*M-0
123
L R
MS
*01
23
No
te-1
0
MS
*
0123
No
te-2
SNo
te-2
MS
*
0123
T
Rev 0
3:
Revis
ed
wit
h L
/R
sw
itch
lo
cati
on
in
fie
ld.
Pag
e 2
of
4
AD
DE
D
AD
DE
D
AD
DE
D
AD
DE
D
AN
NEX
UR
E-2
: M
OV
CO
NTR
OL S
CH
EM
ES
TY
PIC
AL
- 1
: S
IGN
AL
S A
ND
CO
MM
AN
DS
FO
R M
OV
s (O
N-O
FF
TY
PE
) -
LO
CA
L O
PE
RA
TIO
NN
ote
s
TY
PIC
AL
- 2
: S
IGN
AL
S A
ND
CO
MM
AN
DS
FO
R M
OV
s (O
N-O
FF
TY
PE
) -
DC
S O
PE
RA
TIO
NN
ote
s
TY
PIC
AL
- 3
: S
IGN
AL
S A
ND
CO
MM
AN
DS
FO
R M
OV
s (O
N-O
FF
TY
PE
) -
WIT
H D
CS
INT
ER
LO
CK
No
tes
P &
ID
SY
MB
OL
DES
CR
IPTIO
N
7. If
AU
TO
is s
elec
ted,
the
Val
ve s
hall
oper
ate
as p
er p
roce
ss in
terlo
ck. I
f MA
N is
sel
ecte
d, o
pera
tor
can
clos
e/op
en th
e va
lve
man
ually
. In
MA
N m
ode,
DC
S in
terlo
ck w
ill r
emai
n by
pass
ed.
6. In
tegr
al p
art o
f the
MO
V a
ctua
tor
and
shal
l not
be
indi
cate
d in
P&
ID
5. If
the
MO
Vs
are
conn
ecte
d in
"P
aksc
an"
syst
em, a
ll S
igna
ls &
Com
man
ds s
hall
be in
dica
ted
by s
eria
l lin
k to
/from
DC
S. H
owev
er, E
SD
inte
rlock
com
man
d sh
all b
e in
dica
ted
hard
wire
d.
5. If
the
MO
Vs
are
conn
ecte
d in
"P
aksc
an"
syst
em, a
ll S
igna
ls &
Com
man
ds s
hall
be in
dica
ted
by s
eria
l lin
k to
/from
DC
S. H
owev
er, E
SD
inte
rlock
com
man
d sh
all b
e in
dica
ted
hard
wire
d.
4. If
MO
V a
ctua
tor
faul
t ala
rm is
req
uire
d, th
e sa
me
shal
l be
indi
cate
d as
per
the
lege
nd s
heet
3. In
terlo
ck :
DC
S in
terlo
ck o
n pr
oces
s pa
ram
eter
2. D
CS
: O
PE
N-C
LOS
E C
omm
and,
OP
EN
-CLO
SE
pos
ition
& L
OC
AL-
RE
MO
TE
indi
catio
n in
DC
S1.
LO
CA
L : O
PE
N -
CLO
SE
and
LO
CA
L -
RE
MO
TE
sel
ectio
n on
MO
V a
ctua
tor
in fi
eld
5. If
the
MO
Vs
are
conn
ecte
d in
"P
aksc
an"
syst
em, a
ll S
igna
ls &
Com
man
ds s
hall
be in
dica
ted
by s
eria
l lin
k to
/from
DC
S. H
owev
er, E
SD
inte
rlock
com
man
d sh
all b
e in
dica
ted
hard
wire
d.
4. If
MO
V a
ctua
tor
faul
t ala
rm is
req
uire
d, th
e sa
me
shal
l be
indi
cate
d as
per
the
lege
nd s
heet
3. In
terlo
ck :
No
inte
rlock
2. D
CS
: O
PE
N-C
LOS
E C
omm
and,
OP
EN
-CLO
SE
pos
ition
& L
OC
AL-
RE
MO
TE
indi
catio
n in
DC
S
6. In
tegr
al p
art o
f the
MO
V a
ctua
tor
and
shal
l not
be
indi
cate
d in
P&
ID
1. L
OC
AL
: All
MO
Vs
shal
l hav
e O
PE
N -
CLO
SE
faci
lity
on M
OV
act
uato
r in
fiel
d2.
DC
S :
OP
EN
& C
LOS
E p
ositi
on in
dica
tion
is c
onfig
ured
in D
CS
3. In
terlo
ck :
No
inte
rlock
4. If
MO
V a
ctua
tor
faul
t ala
rm is
req
uire
d, th
e sa
me
shal
l be
indi
cate
d as
per
the
lege
nd s
heet
1. L
OC
AL
: OP
EN
- C
LOS
E a
nd L
OC
AL
- R
EM
OT
E s
elec
tion
on M
OV
act
uato
r in
fiel
d
6. In
tegr
al p
art o
f the
MO
V a
ctua
tor
and
shal
l not
be
indi
cate
d in
P&
ID
M
O C
HZ
S01
23H
S01
23
O C
HZ
A
0123
O C
HV
0123
M
O C
HZ
S01
23H
S01
23
O C
HS
0123
O C
HV
0123
L R
HZ
S01
23
HZ
A
0123
O C
HZ
A
0123
R L
No
te-5
No
te-5
No
te-6
No
te-6
M
O C
XZ
S01
23H
S01
23
O C
HS
0123
A M
XV
0123
L R
XZ
S01
23
XZ
A
0123
O C
XZ
A
0123
R L
No
te-5
No
te-6
HS
0123
O C
I
0001
To
be c
onne
cted
to
Pro
cess
Con
trol
ler
No
te-7
Rev 0
3:
Revis
ed
wit
h T
ag
no
. p
hilo
sop
hy
Pag
e 1
of
3
AN
NEX
UR
E-2
: M
OV
CO
NTR
OL S
CH
EM
ES
P &
ID
SY
MB
OL
DES
CR
IPTIO
NT
YP
ICA
L -
4 :
SIG
NA
LS
AN
D C
OM
MA
ND
S F
OR
MO
Vs
(ON
-OF
F T
YP
E)
- W
ITH
ES
D IN
TE
RL
OC
KN
ote
s
7. F
or E
SD
O/P
, tag
no.
sha
ll be
like
: 13
8UV
X-0
123
(ES
D c
omm
and
for
UV
-012
3 of
uni
t 138
)X
= E
SD
Inte
rlo
ck O
utp
ut
TY
PIC
AL
- 5
: S
IGN
AL
S A
ND
CO
MM
AN
DS
FO
R M
OV
s (I
NC
HIN
G T
YP
E)
- L
OC
AL
OP
ER
AT
ION
No
tes
TY
PIC
AL
- 6
: S
IGN
AL
S A
ND
CO
MM
AN
DS
FO
R M
OV
s (I
NC
HIN
G T
YP
E)
- D
CS
OP
ER
AT
ION
No
tes
6. In
tegr
al p
art o
f the
MO
V a
ctua
tor
and
shal
l not
be
indi
cate
d in
P&
ID
5. If
the
MO
Vs
are
conn
ecte
d in
"P
aksc
an"
syst
em, a
ll S
igna
ls &
Com
man
ds s
hall
be in
dica
ted
by s
eria
l lin
k to
/from
DC
S. H
owev
er, E
SD
inte
rlock
com
man
d sh
all b
e in
dica
ted
hard
wire
d.
2. D
CS
: P
ositi
on fe
edba
ck in
dica
tion
is c
onfig
ured
in D
CS
(0-1
00%
)1.
LO
CA
L : A
ll M
OV
s sh
all h
ave
OP
EN
- C
LOS
E fa
cilit
y on
MO
V a
ctua
tor
in fi
eld
6. In
tegr
al p
art o
f the
MO
V a
ctua
tor
and
shal
l not
be
indi
cate
d in
P&
ID
5. If
the
MO
Vs
are
conn
ecte
d in
"P
aksc
an"
syst
em, a
ll S
igna
ls &
Com
man
ds to
/from
DC
S s
hall
be in
dica
ted
by
seria
l lin
k. H
owev
er, E
SD
inte
rlock
com
man
d sh
all b
e H
ardw
ired.
No
te :
ES
D c
om
man
d s
hal
l be
dir
ectl
y co
nn
ecte
d t
o a
ctu
ato
r vi
a h
ard
wir
e an
d s
hal
l ove
rrid
e al
l DC
S
com
man
ds.
4. If
MO
V a
ctua
tor
faul
t ala
rm is
req
uire
d, th
e sa
me
shal
l be
indi
cate
d as
per
the
lege
nd s
heet
3. In
terlo
ck :
ES
D In
terlo
ck o
n pr
oces
s pa
ram
eter
2. D
CS
: O
PE
N-C
LOS
E C
omm
and,
OP
EN
-CLO
SE
pos
ition
& L
OC
AL-
RE
MO
TE
indi
catio
n in
DC
S1.
LO
CA
L : O
PE
N -
CLO
SE
and
LO
CA
L -
RE
MO
TE
sel
ectio
n on
MO
V a
ctua
tor
in fi
eld
5. If
the
MO
Vs
are
conn
ecte
d in
"P
aksc
an"
syst
em, a
ll S
igna
ls &
Com
man
ds s
hall
be in
dica
ted
by s
eria
l lin
k to
/from
DC
S. H
owev
er, E
SD
inte
rlock
com
man
d sh
all b
e in
dica
ted
hard
wire
d.6.
Inte
gral
par
t of t
he M
OV
act
uato
r an
d sh
all n
ot b
e in
dica
ted
in P
&ID
4. If
MO
V a
ctua
tor
faul
t ala
rm is
req
uire
d, th
e sa
me
shal
l be
indi
cate
d as
per
the
lege
nd s
heet
3. In
terlo
ck :
If in
terlo
ck is
req
uire
d, th
e sa
me
shal
l be
indi
cate
d as
per
Typ
ical
-3 o
r 4,
val
ve ta
g na
me(
XV
or
UV
) sh
all c
hang
e ac
cord
ingl
y.
1. L
OC
AL
: OP
EN
- C
LOS
E a
nd L
OC
AL
- R
EM
OT
E s
elec
tion
on M
OV
act
uato
r in
fiel
d2.
DC
S :
Pos
ition
Com
man
d(0-
100%
) , P
ositi
on F
eedb
ack
& L
OC
AL-
RE
MO
TE
indi
catio
ns a
re c
onfig
ured
in D
CS
3. In
terlo
ck :
If in
terlo
ck is
req
uire
d, th
e sa
me
shal
l be
indi
cate
d as
per
Typ
ical
-3 o
r 4,
val
ve ta
g na
me(
XV
or
UV
) sh
all c
hang
e ac
cord
ingl
y.4.
If M
OV
act
uato
r fa
ult a
larm
is r
equi
red,
the
sam
e sh
all b
e in
dica
ted
as p
er th
e le
gend
she
et
MH
ZT
0123
HS
0123
O C
HZ
I
0123
HV
0123
M
HIC
0123
HV
0123
HZ
T01
23H
S01
23
O C
L R
HZ
S01
23
HZ
I
0123
HZ
A
0123
R L
M
O C
UZ
S01
23H
S01
23
O C
HS
0123
O C
UV
0123
L R
UZ
S01
23
UZ
A
0123
O C
UZ
A
0123
R L
I
0001
To
be c
onne
cted
to
Pro
cess
Con
trol
ler
No
te-5
No
te-5
No
te-5
No
te-6
No
te-6
No
te-6
No
te-7
Rev 0
3:
Revis
ed
wit
h T
ag
no
. p
hilo
sop
hy
Pag
e 2
of
3
Recommended