Question 1

Briefly describe RTO timer operation.

Accepted Answer

The RTO is a retentive timer on delay. This timer works the same as the TON except this instruction is retentive. Being retentive, the instruction remembers its accumulated time value if the rung goes false. Also, if for some reason power is lost to the PLC and the battery is good, then the instruction remembers or retains its accumulated value.

Question 2

A time delay before an instruction becomes true is programmed with the ____________________ timer.

Accepted Answer

on-delay
on delay

Question 3

In order for the PAC and human operator to monitor the current timer status, ____________________ are used.

Accepted Answer

status bits

Question 4

Briefly describe how the timer timing bit controls output.

Accepted Answer

The timer timing bit makes its

Question 5

The part of the timer that identifies the current position in the timing cycle is the ____________________.

Accepted Answer

The answer of The part of the timer that identifies...

Question 6

What is the purpose of the TT timer status bit?

Accepted Answer

The timer timing bit

Question 7

The three-letter abbreviation that identifies the timer instruction is the timer ____________________.

Accepted Answer

The answer of The three-letter abbreviation that identifies the timer...

Question 8

Timer and counter instructions can be selected from the Timer/Counter tab on the Standard toolbar.

Accepted Answer

A) True 
 B)False

Question 9

Briefly describe the preset value (PRE) for a timer.

Accepted Answer

The preset value (PRE) for a timer is th

Question 10

The TOF is a nonretentive instruction.

Accepted Answer

A) True 
 B)False

Question 11

The TON instruction is reset by making the rung go false.

Accepted Answer

A) True 
 B)False

Question 12

When the accumulated value and preset value are equal, the ____________________ status bit is true

Accepted Answer

The answer of When the accumulated value and preset value...

Question 13

The done bit is true when timer instruction is true or enabled.

Accepted Answer

A) True 
 B)False

Question 14

A projector fan that continues to run after the light is turned off is an example of an off-delay timer.

Accepted Answer

A) True 
 B)False

Question 15

Briefly describe the three-DINT structure of a ControlLogix timer

Accepted Answer

A ControlLogix timer structure contains

Exam 12: Controllogix Timer Instructions

Briefly describe RTO timer operation.

A time delay before an instruction becomes true is programmed with the ____________________ timer.

In order for the PAC and human operator to monitor the current timer status, ____________________ are used.

Briefly describe how the timer timing bit controls output.

The part of the timer that identifies the current position in the timing cycle is the ____________________.

What is the purpose of the TT timer status bit?

The three-letter abbreviation that identifies the timer instruction is the timer ____________________.

Timer and counter instructions can be selected from the Timer/Counter tab on the Standard toolbar.

Briefly describe the preset value (PRE) for a timer.

The TOF is a nonretentive instruction.

The TON instruction is reset by making the rung go false.

When the accumulated value and preset value are equal, the ____________________ status bit is true

The done bit is true when timer instruction is true or enabled.

A projector fan that continues to run after the light is turned off is an example of an off-delay timer.

Briefly describe the three-DINT structure of a ControlLogix timer

Introduction to Control Logix Hardware

Introduction to Rs Logix 5000 Software

Number Systems

Rs Logix 5000 Project Organization

Understanding Control Logix I-O Addressing

Modular Controllogix Digital and Analog I-O Configuration

Compactlogix I-O Configuration

Communicating Between Your Personal Computer and Your Plc

Creating and Monitoring Rs Logix 5000 Tags

Introduction to Logic

The Basic Relay Instructions

Adding Ladder Rung Documentation

Control Logix Counter Instructions

Comparison Instructions

Data-Handling Instructions

Introduction to the Get System Values Gsv and Set Systems Values Ssv Instructions

Introduction to the Rs Logix 5000 Function Block Programming Language

Configuring a Serial Driver Using Rs Linx

Configuring the Keyspan by Tripp Lite, High-Speed Usb to Serial Adapter Model Usa-19hs

Configuring an Rslinx Serial Driver Using a Rockwell Automation 9300-Usbs Usb to Serial Adapter

Installing and Configuring a Usb Driver for 1756-L7 Series Controllers

Determining and Modifying a Personal Computers Ip Address

Configuring 1756 Control Logix Modular Ethernet Hardware

Configuring the Ethernet Ip Address for a Compact Logix 1769-L23e, 1769-L32e, or 1769-L35e

Configuring a 1756-Enet Ethernet Driver Using Rs Linx

Configuring Ethernet-Ip Drivers Using Rs Linx Software

Configuring a Compact Logix 1769-L23e, 1769-L32e, or 1769-L35e Ethernet-Ip Driver Using Rslinx

Configuring a Usb Driver for a 1756-En2t Ethernet Communications Module

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