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

Write a note on clampers, Q. Write a note on clampers ? Clamper is a ci...

Q. Write a note on clampers ? Clamper is a circuit that "clamps" a signal to a different dc level. The different types of clampers are positive negative and biased clampers.

Determine gold and silver are which type of materials, Gold and silver are ...

Gold and silver are (A) Dielectric materials (B) Low resistivity conducting materials. (C) Magnetic materials. (D) Insulating materials. Ans: Gold and si

Determine the laplace transform of the waveform, Q. Determine the Laplace t...

Q. Determine the Laplace transform of the waveform shown in Figure.

Diatomic molecules in three dimensions, Consider the open rotation of a dia...

Consider the open rotation of a diatomic molecule consisting of two atoms of mass and respectively divided by a distance presume that the molecule is rigid with center of mass fixe

Electrical measurement, how an power factor meter works

how an power factor meter works

Show the decimal to hex conversion, Q. Show the Decimal to Hex Conversion? ...

Q. Show the Decimal to Hex Conversion? To convert the decimal to the hex is slightly more difficult. The usual method to convert from decimal to hex is repeated division by 16.

Define sampling frequency, Define Sampling Frequency? Since real analog...

Define Sampling Frequency? Since real analog signals consist of several frequencies, spectrum of the input signals should be limited to make sure that no signal energy exists a

Switched mode power supply , Switched Mode Power Supply  (SMPS) Switch...

Switched Mode Power Supply  (SMPS) Switching mode power  supply converts an unregulated DC voltage  to a regulated DC  output  voltage . SMPS  stands  for switched mode  power

Digital electronics, Digital Electronics: We have study the fundamenta...

Digital Electronics: We have study the fundamentals of Digital circuits. Primary we have studied the mathematics of Binary numbers also called as Boolean algebra and how to im

List out the five categories of the 8085 instructions, List out the five ca...

List out the five categories of the 8085 instructions. Give examples of the instructions for each group. 1.  Data transfer group - MOV, MVI, LXI. 2.  Arithmetic group - ADD,

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: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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