Programmable Logic Controllers 5th Edition By Frank Petruzella – Test Bank

Programmable Logic Controllers 5th Edition By Frank Petruzella – Test Bank

True / False Questions
 

1. A counter counts the change of state of an external trigger signal.
True    False

Learning Objective: Design an RSLogix 5000 ladder logic program with counters

Bloom’s Verb: Understand

Bloom’s Object: Interpreting

Topic: ControlLogix Controllers

Chapter: 15 ControlLogix Controllers

Sub-Topic: Counters

Section: 15.04 Counters

Units: N/A

Difficulty: Easy

2. The two basic counter types are the right-counter and the left-counter.
True    False

Learning Objective: Design an RSLogix 5000 ladder logic program with counters

Bloom’s Verb: Understand

Bloom’s Object: Interpreting

Topic: ControlLogix Controllers

Chapter: 15 ControlLogix Controllers

Sub-Topic: Counters

Section: 15.04 Counters

Units: N/A

Difficulty: Easy

3. All counters are non-retentive.
True    False

Learning Objective: Design an RSLogix 5000 ladder logic program with counters

Bloom’s Verb: Understand

Bloom’s Object: Interpreting

Topic: ControlLogix Controllers

Chapter: 15 ControlLogix Controllers

Sub-Topic: Counters

Section: 15.04 Counters

Units: N/A

Difficulty: Easy

4. The acronym CTD stands for a count-down counter.
True    False

Learning Objective: Design an RSLogix 5000 ladder logic program with counters

Bloom’s Verb: Understand

Bloom’s Object: Interpreting

Topic: ControlLogix Controllers

Chapter: 15 ControlLogix Controllers

Sub-Topic: Counters

Section: 15.04 Counters

Units: N/A

Difficulty: Easy

5. The acronym CTU stands for a count-up counter.
True    False

Learning Objective: Design an RSLogix 5000 ladder logic program with counters

Bloom’s Verb: Understand

Bloom’s Object: Interpreting

Topic: ControlLogix Controllers

Chapter: 15 ControlLogix Controllers

Sub-Topic: Counters

Section: 15.04 Counters

Units: N/A

Difficulty: Easy

6. A counter retains its Accum value if the rung goes false.
True    False

Learning Objective: Design an RSLogix 5000 ladder logic program with counters

Bloom’s Verb: Understand

Bloom’s Object: Interpreting

Topic: ControlLogix Controllers

Chapter: 15 ControlLogix Controllers

Sub-Topic: Counters

Section: 15.04 Counters

Units: N/A

Difficulty: Easy

Multiple Choice Questions
 

7. Counters count:
A. true-to-false transitions of the counter rung.
B. false-to-true transitions of the counter rung.
C. the length of time a counter rung is true.
D. the length of time a counter rung is false.

Learning Objective: Design an RSLogix 5000 ladder logic program with counters

Bloom’s Verb: Understand

Bloom’s Object: Interpreting

Topic: ControlLogix Controllers

Chapter: 15 ControlLogix Controllers

Sub-Topic: Counters

Section: 15.04 Counters

Units: N/A

Difficulty: Easy

8. For the counter instruction shown, which parameter specifies the value the counter must reach before the done bit turns on?

A. Count Up
B. Package_Counter
C. Preset
D. Accum

Learning Objective: Design an RSLogix 5000 ladder logic program with counters

Bloom’s Verb: Understand

Bloom’s Object: Interpreting

Topic: ControlLogix Controllers

Chapter: 15 ControlLogix Controllers

Sub-Topic: Counters

Section: 15.04 Count-Up (CTU) Counters

Units: N/A

Difficulty: Easy