Dcs operator training

WEL - COME
TO
DISTRIBUTED
CONTROL SYSTEM
(DCS)

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.

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

DCS MANUFACTURERS
 HONEYWELL
 YOKOGOWA
 ALLEN BRADLEY
 GE FANUC
 EMERSON
 ASEA BROWN BOWERI – ABB
 FOXBORO - INVENSYS

What DCS we are using?
 Emerson Delta V system

Overview of Delta V system
Engineering
station
Operator
station
Application
station
Controller and IO Controller and IO

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

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

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

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

Typical Schematic Diagram For Information
Flow
JB TB IO CARD CONTROLLER
OS
JB TB
From TX
CONTROL ROOMFIELD
To I/P
IO CARD CONTROLLER

OPERATOR WORK STATION
FUNCTIONS AND FEATURES

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.

OPERATOR STATION BUTTON2
Buttons
Alarm 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.

Buttons
Disable 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).

Buttons

ANALOG INPUT DYNOMOS
Analog Input

PID CONTROLLER DYNAMOS
PID Controller

CONTROL VALVE DYNAMOS
Dynamos
Control Valve

ON/OFF VALVES DYNAMOS
ON/OFF Valve

SELECTOR DYNAMOS
Selector
Selection
IndicatorInput 1
Output
Display
Tag
Input 2
Input 1 Selected
Input 2 Selected

LEVEL BAR DYNAMOS
GOOD CONDITION
0% level empty bar
0.01% to 100% - Bright green filling
Warning ALARM
Yellow Flashing bar if not acknowledge
Steady yellow bar if acknowledged
Critical ALARM
Red Flashing bar if not acknowledge
Steady red bar if acknowledged

ANALOG INPUT FACEPLATE
Close faceplate
PV Bar
PV
Push pin
Module name
Description
Alarm indications
Toolbar

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

OPERATOR STATION OVERVIEW
Faceplate
Detailed ON/OFF Valve

OPERATOR STATION OVERVIEW
Faceplate
Motor/Pump

THANK U ALL
FROM ,
Jayapal A P

Dcs operator training

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