Deck 10: Introduction to Logic

Question 1

In a function block, the inputs points to the block are called ____________________.

Answer 1

pins

Question 2

OR logic is similar to placement in series, as all series devices must pass continuity before the outcome is allowed to happen.

Answer 2

False

Question 3

In a two-input AND truth table, 0 AND 1 = 1.

Answer 3

False

Question 4

What is the most popular programming language for PACs?

Question 5

A normally closed instruction on a PLC ladder rung is the ____________________ of the input tag associated with the specific instruction.

Question 6

Briefly describe function block programming.

Question 7

Which familiar electrical circuit can also be referred to as the OR logic function?

Question 8

Rockwell Automation's ControlLogix, PLC-5, and SLC 500 families can be programmed in function block diagram language in addition to standard ladder logic.

Question 9

In reference to RSLogix ladder rungs, each rung is a(n) ____________________.

Question 10

RSLogix 5000 software provides the ability to interlace inputs and outputs on a ladder rung as long as the last instruction on a rung is some type of ____________________ instruction.

Question 11

The normally closed PLC ladder logic instruction is true any time the input tag bit is not a 1.

Question 12

The BAND function block can contain up to eight input points.

Question 13

A PAC relay ladder program uses an electrician's ladder schematic as a model. Briefly describe how the PAC relay ladder differs from a hardwired relay circuit.

Question 14

Briefly distinguish between OR logic and exclusive OR logic for two inputs.

Question 15

In PAC logic, the normally open instruction examines the bit to see whether it is closed. As a result, the instruction will be referred to as a(n) ____________________ instruction.