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Test Bank For Introduction to the ControlLogix Programmable Automation Controller with Labs - 2nd - 2014 All Chapters - 9781111539290

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Test Bank For Introduction to the ControlLogix Programmable Automation Controller with Labs - 2nd - 2014 All Chapters

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9781111539290
9781285709901
introduction to the controllogix programmable auto

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,Test Bank For Introduction to the ControlLogix Programmable Automation Controller with
Labs
Chapter 1: Introduction to ControlLogix Hardware

Chapter 1: Introduction to ControlLogix Hardware

TRUE/FALSE

1. The far left slot of a traditional PLC chassis or a ControlLogix chassis is known as slot one.

ANS: F PTS: 1 REF: Introduction

2. The two most common modes of a controller are Run and Test.

ANS: F PTS: 1 REF: ControlLogix Controller Features

3. The 1769-L23 CompactLogix is a fixed or packaged controller where the controller, power supply,
and I/O are contained in a single unit.

ANS: T PTS: 1 REF: CompactLogix 1769-L23

4. 1769 Modular CompactLogix features a chassis for inserting the controller and modules like the
modular ControlLogix.

ANS: F PTS: 1 REF: 1769 Modular CompactLogix

5. ControlNet is an open-control level network used for real-time data transfer of time-critical and
non-time critical data among controllers or I/O on the same link.

ANS: T PTS: 1 REF: The ControlNet Network

COMPLETION

1. The backplane of the ControlLogix chassis is a ControlNet network called
____________________.

ANS: ControlBus

PTS: 1 REF: Introduction

2. Moving data from one network to a different network is called ____________________.

ANS: bridging

PTS: 1 REF: ControlLogix as a Communications Bridge

3. Analog input and output signal connections to an analog module are referred to as
____________________.

1

,Test Bank For Introduction to the ControlLogix Programmable Automation Controller with
Labs
Chapter 1: Introduction to ControlLogix Hardware

ANS: channels

PTS: 1 REF: ControlLogix Analog Modules

4. In the ControlLogix operating cycle, the ____________________ specifies the rate at which the
module being configured sends or multicasts its data.

ANS:
requested packet interval
RPI
requested packet interval (RPI)

PTS: 1 REF: How ControlLogix Modules Operate

5. ____________________ is the most popular network today because of its fast speed and readily
available off-the-shelf components.

ANS: Ethernet

PTS: 1 REF: Ethernet Communications

SHORT ANSWER

1. What distinguishes the ControlLogix modular PAC from traditional PLCs?

ANS:
The ControlLogix modular PAC is a high-performance multicontroller system. Unlike traditional
PLCs in which only a single controller is allowed in the chassis, ControlLogix provides the
flexibility to add multiple controllers as system requirements and complexity dictate.

PTS: 1 REF: Introduction

2. What is a major advantage of DeviceNet, an open network intended to link low-level devices?

ANS:
One major advantage of DeviceNet is that a single four-conductor cable containing power and
signal wires is used to connect the devices on the network and save wiring costs.

PTS: 1 REF: DeviceNet Communications

3. List three new features of ControlLogix series 7 controllers.

ANS:
Below are some of the new features for the ControlLogix L7 series:
• Dual core CPU

2

, Test Bank For Introduction to the ControlLogix Programmable Automation Controller with
Labs
Chapter 1: Introduction to ControlLogix Hardware

• USB communication port to replace the standard 9-pin D-shell serial port
• Compact Flash nonvolatile memory card replaced with the smaller secure digital (SD)
nonvolatile memory card
• Scrolling data display on the front of the controller to provide the user more information as to the
controller status
• Energy storage module (ESM) replacing the lithium battery

PTS: 1 REF: ControlLogix Controller Features

4. Briefly distinguish between the types of volatile memory backup in series 6 series A controllers,
series 6 series B controllers, and series 7 controllers.

ANS:
Series 6 series A controllers use the controller battery 100 percent of the time to maintain power to
controller volatile memory.
Series 6 series B controllers have a battery that is used only to transfer the project to onboard
nonvolatile memory when power is lost.
Series 7 controllers have a capacitor module (referred to as an ESM) that replaces the battery
function.

PTS: 1 REF: ControlLogix Controller Features

5. List three considerations when selecting a ControlLogix controller.

ANS:
Below are some considerations when selecting a ControlLogix controller:
1. How much memory is required for the current application as well as future expansion?
2. Is removable nonvolatile memory required?
3. Do you need a standard serial port or USB?
4. Battery backup or energy storage module (capacitor backup)
5. Major minimum and maximum RSLogix 5000 software revisions

PTS: 1 REF: Selecting a ControlLogix Modular Controller

3

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