Deck 38: Programmable Logic Controllers

Question 1

Programmable logic controllers are designed to be programmed with common computer languages.

Answer 1

False

Question 2

The microprocessor chip used in most programmable logic controllers (PLCs) is the same as found in most home and business personal computers.

Answer 2

True

Question 3

A programmable logic controller (PLC) is a computer.

Answer 3

True

Question 4

Figure 38-10

In the accompanying diagram, what does MOV stand for? How does it help?

Question 5

The actual logic of the control circuit is performed by ____________________.

Question 6

The I/O rack is used to connect the CPU to the outside world.

Question 7

The central processing unit of a programmable logic controller is sensitive to what two things?

Question 8

The ____________________ is used to program the central processing unit (CPU).

Question 9

In a central processing unit (CPU), what does a physical switch or a software switch prevent?

Question 10

Programmable logic controllers can be divided into four primary parts. What are they?

Question 11

Output modules provide ____________________ between the central processing unit (CPU) and external circuit.

Question 12

There is a physical timer or counter in the programmable logic controller (PLC).

Question 13

The ____________________ is used to connect the central processing unit to the load.

Question 14

The input I/O uses ____________________ to electrically separate the incoming signal from the central processing unit (CPU).

Question 15

What is the function of the power supply?