User Account

All Pages

Distributed Control Sytems, Electrical Engineering

Assignment Help:
1. Produce a fully-labelled sketch to show the components of a Direct
Digital Control system.

2. State the minimum number of printed-circuit cards required to construct a
basic controller, naming each of the cards.

3. Produce a sketch to show the construction of the data words on the data
highway.

4. Explain the use of the different MODES of control available in a
controller of a Distributed Control System.

5. The Instrument Engineer, designing a Distributed Control System, has
available to him Basic Controllers and Advanced Controllers. List all
the reasons why an Advanced Controller might be used in preference to a
Basic Controller, making reference to the full processing capabilities of
the advanced controller.

6. Describe the difference between notified status and change detect points
and list the types of cards to which this applies.

7. Describe the main purpose of sequence programmes and state what would
require to be done in the writing of a programme which was too long to fit
in one sequence slot, making reference to the problem which this could
cause.
8. Describe the data presented to the operator on the Detail page display of
the operator station. List six different items of data which would be
presented for a control loop data point, and state whether the operator
would be able to change the values pertaining to these items.

9. State the limitations of the data highway system and what attributes of the
advanced distributed control system help to overcome these.

10. Explain the token passing technique used for advanced distributed control
system communications on the LAN, describing the procedure for a
newly powered up module to join the system.

11. Describe in detail the different types of alarm generated on the advanced
distributed control system.

12. Using the information below, produce a set of calibration figures for the
control loop TICA1495.
TI1495 range = 100 to 420°C
TICA1495 SP = PV = 300°C
TCV1495 = 30%.

13. An operator, using the operator interface, will have the operator station in
operator personality. Describe the requirement for ''personalities'' within
the DCS, making reference to other personalities available, and explain
how different functions are denied to unauthorised persons within the
operator personality.

14. Describe a procedure for adding a new data point to the distributed
control system data base and making this new point available to the
operator.




15. Provide a list of the five major factors to be taken into account when
considering the choice of a distributed control system for any given
installation, stating the benefits to be gained from the use of DCS for an
offshore oil and gas processing plant.

16. Describe the differences in communication protocol between the
Honeywell TDC2000 and Honeywell TDC3000 distributed control
systems. State the name of the device used to enable these two systems to
talk to each other.

17. All of the distributed control systems have the ability to use a data
historian module. List the main tasks of a data historian attached to a
DCS.

18. Describe the use of Group Points, stating which of the manufacturer''s
systems these apply to.

19. Describe the functions of a Highway Traffic Director, and state which of
the manufacturer''s systems does not require the use of this device.

20. Where would an HIA be installed and what are its functions?

21. Explain the reasons behind the installation of distributed control systems
in refineries for the control of natural gas liquids fractionation plant.

Related Discussions:- Distributed Control Sytems

Applications of operational amplifiers, Q. Applications of operational ampl...

Q. Applications of operational amplifiers? An op amp along with a few external components (resistors and capacitors) is capable of performing many different operations-hence th

Example numerical of dc generator., Q. An 8 - pole dc generator has 500 arm...

Q. An 8 - pole dc generator has 500 armature conductors and has a useful flux per pole of 0.065 web. What will be the emf generated if it is lap connected and runs at 1000 r.p.m.

Resonance, i want to plot a system current transfer matrix element vs frequ...

i want to plot a system current transfer matrix element vs frequency curve.how can i draw it?any suggestion.

What does microprocessor speed depend on, The processing speed stated on DA...

The processing speed stated on DATA BUS WIDTH.

Equivalent circuit of a field-effect transistor, Q. The circuit shown in Fi...

Q. The circuit shown in Figure is the equivalent circuit of a field-effect transistor (FET) amplifier stage. (a) Determine the y-parameters. (b) For values of µ = g m /g d >

Transparent latch d flip flop, Transparent latch D flip  Flop A typica...

Transparent latch D flip  Flop A typical  example  of this  type of D flop  is 7475 shown  in figure when CLK  connected is enable signal is high and the flip  flop  is enabled

What is voltage multiplying dacs, What is Voltage Multiplying DACs? Mul...

What is Voltage Multiplying DACs? Multiplying DACs function on the principle of producing a weighted sum analog signal where the sum is proportional to the digital input signal

Discuss applications of dielectrics, Discuss applications of dielectrics. ...

Discuss applications of dielectrics. Application of dielectrics: For various applications various properties of dielectric materials are required as: electrical, mechanical

Determine the atomic weight of an atom, Atomic weight of an atom is (A...

Atomic weight of an atom is (A) Sum of the number of protons and neutrons. (B) Sum of the number of protons and electrons. (C) Sum of the number of electrons and n

What do mean by flow of electron, Flow of electrons - Electrons flow down a...

Flow of electrons - Electrons flow down a wire that is what current, is. Good conductors like copper and silver and aluminum have free electrons in their outer shells, and they jum

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd