Dcs operator training
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Transcript of Dcs operator training
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WEL - COME TO
DISTRIBUTED CONTROL SYSTEM
(DCS)
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What is DCS ?
DCS is abbreviation for Distributed Control System As is apparent from the abbreviation, the word ‘Distributed’ supports
following functionality’s Physical Distribution - Nodes or Subsystems can be Distributed I.e
located physically apart Functional Distribution - Specific Functionality is imparted for a
Node basing on the combination of hardware and software used. For e.g Application work-processor with Historian, Application work-processor with control configuration software
Structural Distribution - Different Structural hardware platforms (Application Workstation processor, Workstation processor, Control processor etc.) are used to achieve the required functionality.
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WHY DCS ?
For Total Plant Automation
For Higher Productivity
For Optimal Process Control
For Regulatory Compliance
For Management Information System
In Tune With Global Requirement
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DCS MANUFACTURERS
HONEYWELL YOKOGOWA ALLEN BRADLEY GE FANUC EMERSON ASEA BROWN BOWERI – ABB FOXBORO - INVENSYS
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What DCS we are using?
Emerson Delta V system
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Overview of Delta V system
Engineering station
Operator station
Application station
Controller and IO Controller and IO
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Professional PLUS (Engineering) Workstation
Every DeltaV system must have one, and only one,
Professional PLUS Station. It provides the global
configuration and the configuration database for the
system. Therefore, it is the primary engineering and
configuration interface for a DeltaV System. For small
DeltaV systems, it also serves as the operator and diagnostics
interface for the system.
PROPLUS STATION
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Application (PI Historian) Workstation
This Application Station provides integration between your DeltaV system and the
rest of your day-to-day operations, using OLE for
Process Control (OPC). Optionally, you can extend
your DeltaV system with DeltaV applications and other
third-party applications tailored for your particular
process. It is also act as a PI Historian server.
APPLICATION STATION
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Delta V controller
The CONTROLLER manages all control activities for the I/O interface
channels. It also manages all communication functions for the communications network. Time
tamping, alarming, and trend objects are also managed within the controller.
The controller executes your control strategy. Information from an input
channel is received, control strategy applied, and data sent to an output
channel within 100 ms. The DeltaV I/O subsystem is
comprised of the following components:
Carriers Power Supplies Controller I/O Modules
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Operator workstation
For workstations that are required for operating the
process and viewing continuous history only,
select the Operator Station Software Suite.
Applications typically added to the Operator
Station Software Suite are the Event Chronicle,
Diagnostics, and Control Studio On-Line.
OPERATOR STATION
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Typical Schematic Diagram For Information Flow
JB TB IO CARD CONTROLLER
OS
JB TB
From TX
CONTROL ROOMFIELD
To I/PIO CARD CONTROLLER
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OPERATOR WORK STATION
FUNCTIONS AND FEATURES
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OPERATOR STATION OVERVIEW
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OPERATOR STATION BUTTONS1
Buttons
Acknowledge Alarm - This button is displayed in the Alarm Banner. It also appears in the faceplate
and detail displays for the standard modules. If you select this icon in the Alarm Banner, the system
acknowledges all the unacknowledged alarms in the main process graphic. Only those alarm parameters
that are part of the graphic are acknowledged.
Silence Horn - This button stops the horn. If new alarms become active, the horn sounds again.
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OPERATOR STATION BUTTON2
ButtonsAlarm Suppress - This button is displayed in the Alarm
List picture and the Alarm Filter picture. Clicking the Alarm Suppress button opens the Operator Suppressed
Alarm picture, which lists all of the suppressed alarms.
Diagnostics - This button is displayed in the Alarm banner. It shows your Communications status. The Diagnostics
button displays two indicators for the Primary Communications network and four indicators for the
Secondary Communications network. Clicking the Diagnostics button launches diagnostics, which provides
more detailed information.
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OPERATOR STATION BUTTONS3
ButtonsDisable Horn/Enable Horn - When disabled, new alarms do not cause the horn to sound. This setting is a parameter of the current user's session. When a new user logs on, the
horn is enabled.
Node Status - This button is displayed in the Alarm banner. This button is not displayed if Batch Operator Interface is
running. Clicking the Node Status button launches the Node Status picture, which provides information on your node
(for example, current status and time of last status change or download as well as whether or not its alarms have been
acknowledged).
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OPERATOR STATION BUTTONS4
Buttons
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ANALOG INPUT DYNOMOS
Analog Input
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PID CONTROLLER DYNAMOS
PID Controller
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CONTROL VALVE DYNAMOS
Dynamos
Control Valve
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ON/OFF VALVES DYNAMOSON/OFF Valve
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PUMP / MOTOR DYNAMOS
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SELECTOR DYNAMOS
Selector
Selection IndicatorInput 1
Output
Display Tag
Input 2
Input 1 Selected
Input 2 Selected
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LEVEL BAR DYNAMOS
GOOD CONDITION0% level empty bar0.01% to 100% - Bright green filling
Warning ALARMYellow Flashing bar if not acknowledgeSteady yellow bar if acknowledged
Critical ALARMRed Flashing bar if not acknowledgeSteady red bar if acknowledged
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ANALOG INPUT FACEPLATE
Close faceplate
PV Bar
PV
Push pin
Module nameDescription
Alarm indications
Toolbar
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ANALOG INPUT DETAILS FACEPLATE
Module name
Alarm limits
Simulate enable/disable
Transmitter scales
PV filter time constant
Input linearization type
Description
Alarm enable
Alarm suppress
Module diagnostics
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FACEPLATE BUTTONS DETAILS
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PID CONTROLLER FACEPLATE
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PID DETAIL FACEPLATE
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ON/OFF VALVE FACEPLATE
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OPERATOR STATION OVERVIEWFaceplate
Detailed ON/OFF Valve
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OPERATOR STATION OVERVIEWFaceplate
Motor/Pump
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OPERATOR STATION OVERVIEWFaceplate
Motor/Pump
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THANK U ALL
FROM ,
Jayapal A P
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FEED GAS COMPRESSOR
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REFORMER FIRING CONTROL
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STEAM SYSTEM
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SATURATOR /DESATURATOR
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SYNGAS MACHINE
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CONVERTER
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LIGHT END COLUMN
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HEAVY END COLUMN
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ALARM LIST PAGE
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SUPPRESS ALARM PAGE
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AREAM ALARM LIST PAGE
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PROCESS HISTORY VIEW
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DELTA V EXPLORER
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CONTROL MODULE
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DIAGNOSTIC PAGE