Stored Programme Systems NCV Level 4 — Document

November 2019 — NCV Level 4 — Stored Programme Systems

NCV Level 4 2019 NCV IT

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🎯 1 marks ⏱️ 3h 📄 5 pages 📝 35 items found 📚 2 topics

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Q1— Section header —

1.1State THREE characteristic s of fixed automation (3\

1.2What is the common name for fixed automation (1\

1.3State THREE characteristics of flexible automation (3\

1.4Explain the kind of automation system you would be use if only one product is produced with no p ossibility of product change (2

1.6Explain with the aid of drawings the difference between simplex and full duplex communication.

Q2— Section header —

2.1State THREE disadvantages of using hardwired relay ladder logic peer to peer control in factories (3

2.2A FIELDBUS system s an industrial network specifically designed for ommunication between PLC s or industrial controllers and field devices such as sensors and actuators. Answer the following related questions.

2.2.1 Explain the difference between FIELDBUS I/O and traditional I/O

2.2.2Explain where you would mount remote field devices in FIELD BUS networks.

2.2State FIVE advantages of a FIELDBUS system over a conventional hardwired system

2.2.4Draw a block diagram indicating how PROFINET remote networked com munication is achieved between two PLC units, a HMI unit that uses a communication module t

Q3— Section header —

3.1Explain the purpose of a STAR/DELTA starter (2 1\ (2\

3.2Study the S TAR DELTA (RLL\rdwired co ntrol circuit in FIGURE 1 below. FIGURE 1 Answer the following related questions:

3.2.1Explain the sequence of operation of the contactors used in FIGURE 1. (3 1\ (3\

3.2.2Draw the fully labelled PLC electrical wiring diagram when the hardwired relay l adder logic (RLL\STAR/DELTA system is modified and converted to a PLC control led soft starter. (8

3.2.3Draw the fully labelled motor controlled power circuit for the STAR/DELTA starter. (6 1\ (6\

3.2.4Why does t he material list form part of PLC documentation in rel ation to the PLC I/O s? (1\ [20]20

Q4— Section header —

4.1Study FIGURE 1 above and write a PLC LAD source code for the

Q3— Section header —

4.2State SIX functions of a PLC when used in automatic control. (6 1\ (6\

4.3Explain the difference between timed based control and event based control

4.4Name TWO graphica l PLC languages (2 1\ (2\ [20]20

Q5— Section header —

5.1Explain the meaning of the following terms:

5.1.1 Troubleshooting

5.1.2 Commissioning

5.1.3 Maintenance

5.1

5.2Make a drawin to explain the procedure you follow when checking the input to the PLC using the input LED

5.3he input LED does not illuminate a PLC indicating that the signal does not rea ch the input interface Make

5.4Name TWO chart that can be use to develop a structured maintenance procedure

Topics Identified

Forms of OwnershipBusiness Plan

Mark Allocation

Total100 marks

Sections20 + 20 + 20 + 20 + 20 = 100 marks

Paper information

TitleDocument

SubjectStored Programme Systems

LevelNCV Level 4

Document typeQuestion paper

Year2019

MonthNovember

Pages5

Downloads3

Examination context

Decade2010s

Years ago7y

SeasonSpring (SH)

Start dayFriday

Exam periodNovember 2019

Days since exam2,537

About Stored Programme Systems examination preparation

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