1.1 evaluate the design characteristics of typical programmable logic devices

Unit 22: Programmable Logic Controllers Unit code: A/601/1625

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Learning outcomes

On successful completion

of this unit a learner will:

Assessment criteria for pass

The learner can:

 

LO1 Understand the design

and operational

characteristics of a PLC

system

 

1.1 evaluate the design characteristics of typical

programmable logic devices

1.2 describe different types of input and output device

1.3 evaluate the different types of communication link used

in programmable logic control systems

1.4 describe the internal architecture and operational

characteristics of the CPU of a typical programmable

logic device

 

LO2 Understand PLC

information and

communication

techniques

 

2.1 evaluate the different forms of signal used in

programmable logic control

2.2 describe the resolution and relationship between

analogue inputs and outputs and word length

2.3 express numbers using different number systems

2.4 describe typical protocols used in signal communication

and evaluate networking methods and networking

standards

 

LO3 Be able to apply

programmable logic

programming techniques

 

3.1 identify elements associated with the preparation of a

programmable logic controller program

3.2 write programs using logic functions based on relay

ladder logic

3.3 evaluate the range and type of advanced functions of

programmable logic controllers

3.4 use and justify methods of testing and debugging

hardware and software

 

LO4 Understand alternative

implementations of

programmable control

 

4.1 evaluate PICs and other programmable devices as

programmable devices and embedded controllers

4.2 compare the operation, functionality, advantages and

limitations of PLC simulators.

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