PLC

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Which base does hexadecimal numbering use? ____

16

time driven sequencing can be used in applications where ____is not consistent enough to use limit switches for even driven sequencing

ACTUATOR POSITIONING

when the processor is in program mode, output can be turned on by the plc? ___

FALSE

the lbl instruction must always be the ___ instruction in the rung

FIRST

the frd instruction is an internal output instruction that converts bcd data, such as an input tag, into ___ equivalent

DECIMAL

the frd instruction is an internal output instruction that converts bcd data, such as an input tag, into a____equivalent

DECIMAL

___ control of an electric motor only works for motors that draw a small current.

DIRECT

the following statement that does not apply to the optical isolator circuit used in I/O modules is that it ___

RECTIFIES AC SIGNALS

the following statement that does not apply to the optical isolator circuit used in I/O modules is that it: ____

RECTIFIES AC SIGNALS

a communication error between an I/O module and the owner controller causes the controller to fault, program operation to stop, and the output modules" ok indicators to flash ___

RED

the ____ instruction is an output instruction used to reset timers having the same tag name.

RESET

what happens when a rto timers .acc value equals its .pre value?

TIMER DONE BIT ACTIVATES

the ____ instruction is used to turn outputs on or off after the timer has been disabled (or off) for a preset time interval.

TOF

in the tag local:2Idata.3 the number 3 represents what?

input bit#

PLC status lights on an input only show the status of the whole card. The ESM monitors the individual terminals

FALSE

location, slot, and data tyoe refer to which of the following ? ____

MODULE DEFINED

in industry, automatic machines must perform operations ___

REPEATEDLY

in an ___plc input module, an input is on if voltage is applied to the input terminal and off if no voltage is applied to the input terminal

ACTIVE HIGH

the advantage of jmp instruction is that it reduces processor ______

SCAN TIME

which of the following status indicator light conditions is likely to result when a hardwired master control realy (MCR) is automatically de-energized?

SOME INPUTS STATUS LIGHTS ARE ON, THE CPU IS RUNNING LIGHT IS ON, AND SOME ACTION OUTPUT STATUS LIGHTS ARE ON

When voltage is applied to input local:1:i data.1 of a plc, a programmed xio instruction addressed local:1:I:data.1 will be ____

FALSE

after coils and contacts, ____are the most commonly used plc instructions

TIMERS AND COUNTERS

the purpose of a digital output module is ___

TO ENERGIZE LOADS IN RESPONSE TO PLC LADDER LOGIC CONTACTS

programmable logic controllers are categorized according to the ____

NUMBER OF I/O MODULES PLC

the manual mode allows the ___ to operate the actuators one at a time pressing pushbuttons or operating selector switches.

OPERATOR

status indicators are provided on each output of an output module to indicate that the ____

OUTPUT IS ACTIVE

a power diagram shows how the machine action affects the plc's inputs and how the plc's ____

OUTPUTS

the controllogix family of programmable controllers has a test mode that enables the user to test program operation without energizing ____

OUTPUTS

the bcd systems provide a convenient means to handle large numbers that need to be input to or output____

PLC

the plc programs are designed so that the machine stops ____

SAFELY

the reason that different valves are used for the clamp and drill cylinders is ___

SAFETY

the drill cylinder is controlled with a ___solenoid valve

SINGLE

seal-in programs are commonly used to control the ___ of electric motors and is a building block of most other machine control programs.

STAR/STOP

Which of the following devices should be wired to the output terminal of a PLC?

A RELAY COIL

after ___and ___ , timers and cournters are the most commonly used plc instructions.

COILS AND CONTACTS

the ___ window is used to develop ladder logic routines for controllogix projects.

LADDER EDITOR

the bcd system provides a convenient means to handle large numbers that need to be input to or output from a____

PLC

input and output modules communicate with the cpu how?

SERIES OF ELECTRICAL CONNECTIONS IN THE BACKPLANE

most electronic sensors use a ____output to send a signal to the plc

TRANSISTOR

a TON instruction: IS A NON RETENTIVE COUNTER THAT WAITS TO ENERGIZE

IS A NON RETENTIVE COUNTER THAT WAITS TO ENERGIZE

plc output module has the following purpose ____

IT SENDS SIGNALS FROM THE PLC AS INPUTS TO FIELD DEVICES

What is the difference between a controller status flag and a controller object? controller status flags do not require GSV or SSV to access them

controller status flags do not require GSV or SSV to access them

creating a controllogix project requires performing a ____ process

7 STEP

one function of a plc input interface module is to ___

ACCEPT SIGNALS FROM FIELD DEVICES AND CONVERT THEM INTO SIGNALS THAT CAN BE USED BY THE PROCESSOR

one function of a plc input interface module is to ____

ACCEPT SIGNALS FROM THE FIELD DEVICES AND CONVERT THEM INTO SIGNALS THAT CAN BE USED BY THE PROCESSOR

the _____displays the actual time that the timer instruction has been enabled.

ACCUMULATED VALUE

an mcr is used as a safety device to remove power from all plc outputs to disable all ___

ACTIONS

most automatic machines perform a number of ____to accomplish the task for which they have been design

ACTIONS

time driven sequencing cab be used in applications where ____is not consistent enough to use limit switches for event driven sequencing

ACTUATOR POSITIONING

time driven sequencing can be used in applications where ___is not consistent enough to use limit switches for event driven sequencing

ACTUATOR POSITIONING

A __________ are examples of a device that could be used to provide a discrete input to a plc.

ALL OF THE ABOVE (LIMIT SWITCH, PUSHBUTTON, SECLECTOR SWITCH)

in plc program, arranging two xic instructions in series is an example of an ____ logic element

AND LOGIC ELEMENT

an ___ is a collection of numerically indexed tags.

ARRAY

the ____ dialog is used to name the controller and configure various aspects of its hardware

NEW CONTROLLER

when a rung goes false the timer returns to zero, what timer is being used to cause this action? ____

NON RENTENTIVE TIMER

a _____ instruction resets whenever the input is de-energized

NON RETENTIVE TIMER

a discrete output interface module is designed to provide ___

ON/OFF SWITCHING OF THE OUTPUT FIELD DEVICE

when the rung is true, the ____ instruction writes a zero to its tag

OTU

A power diagram shows how the machine action affects the plc inputs and how the plc's ____affect the machine action

OUTPUTS

a ____shows how machine action affects the plc inputs and how the plc outputs affect machine action

POWER DIAGRAM

___ is a method of using logic in a plc program to cause an output to turn on or off if certain inputs or outputs are in a particular state.

PROGRAM INTERLOCKING

program control instructions alter the_____of a plc from its normal sequence

PROGRAM SCAN

module-defined ___ organize and store information about the module

PROGRAMMING DEVICES

a controllogix ____ is the software file that stores all programming instructions, hardware configuration and tag data for a controllogix processor

PROJECT

____ is the user text associated with the rungs and instructions of a controller project that explains the operation of that item.

PROJECTION DOCUMENTATION

in most pick and place robotic programs each step of the program application depends on what kind of input type? ___

SENSOR INPUT SIGNAL

multiple safety interlock can be used in a program by placing input instructions in ____ with each other on a rung

SERIES

the up/down counters done (DN) bit is ____whenever the accumulated (ACC) value is greater than or equal to the preset (pre) value and reset when the value is less than the preset (pre) value.

SET

the four languages used to program a controllogix plc are ____, structured text, fbd, and ladder logic

SFC

the tod instructions ___ field identifies the constant decimal value or tag address that is to be converted to an equivalent bcd value.

SOURCE

the gsv instructions dest field identifies the user created tag where the data will be ___

STORED

the mainroutine may contain all of the programs logic or it may contain instructions that call other routines called ____

SUBROUTINES

latch and unlatch instructions are often paired by using the same ___ for both instructions

TAG

the tod instructions destination identifies the ___address of the converted source value.

TARGET

the controllers ____area contains and schedules all of the user logic files and may contain from 1 to 32 used defined tasks

TASK

a technician has recently added a new sensor, the sensor does not seem to be working correctly. which of the following would the technician check first? ____

THE WIRING OF THE SWITCH

A technician reports that none of the PLC outputs are energizing on the factory floor off of PLC Controller 1. What is the most likely cause?

THERE IS SOME TYPE OF POWER FAILURE

like the ctu instruction, the ctd instruction uses ___ DINT members in its tag structure.

THREE

which of the following is the number of true inputs a three input "and logic:" must have to have a true output?

THREE

a bcd ____ is an input device that enables a machine operator to adjust a plc instructions preset value without having to use a programming terminal.

THUMBWHEEL

which of the following is not a function of a plc programming device? ____

TO EXECUTE THE USER PROGRAM

The ____ instruction converts a decimal data tag, such as the preset value of a counter instruction, into a BCD value.

TOD

The___instruction converts a decimal data tag, such as the preset value of a counter instruction, into a bcd value

TOD

the ____instruction converts a decimal data tag, such as the preset value of a counter instruction, into a bcd value

TOD

most electronic sensors use a ___output to send a signal to the plc.

TRANSISTOR

solid state ac output modules use a special kind of solid state device called a ____

TRIAC

there are ___ ways to have more than one output controlled with the same input logic

TWO

plc input modules vary according to four features, ____, level of voltage, number of inputs and active high or active low input

TYPE CURRENT

plc solid state outputs can be directly interfaced to another machines inputs only if the ____and transistor types are compatible

VOLTAGES

what would make a machine ill suited for a direct connection to a PLC?

different voltage

retentive timers differ from non-retentive timers primarily how? how they recover from a de-egergized state

how they recover from a de-energized state

to distinguish the bcd numbering system from binary, a ____is placed to the right of the least significant digit

BCD DESIGNATION

to distinguish the bcd numbering system from the binary, a ___is placed to the right of the least significant digit

BCD DESIGNATION

The tod instructions instructions SOURCE field identifies the constant decimal value or tag address that is to be converted to an equivalent ____

BCD VALUE

What type of power can a PLC use to operate the processor and I/O boards?

DC

the ____bit is set when the timer instruction is enabled and reset when the instruction goes false

ENABLE BIT

Sealing in a motor using seal in logic provides no guarantee that the motor has been

ENERGIZED

plc input/output diagrams are used to show the specific physical connections between the ____

EXTERNAL DEVICES

plc input/output diagrams are used to show the specific physical connections between the ____ and the plc I/O terminals

EXTERNAL DEVICES

plc input/output diagrams are used to show the specific physical connections between the _____and the plc I/O terminals.

EXTERNAL DEVICES

If a normally open auxiliary pushbutton is connected to a normally closed contact contact in the ladder logic, pressing the pushbutton will cause the cause the contact to turn ____

FALSE

MCRs should not be used to initialize counters and latches because it will cause outputs to energize creating unsafe conditions

FALSE

You cannot use RTO instructions in time-driven sequencing because of the retentive property of the instruction.

FALSE

in time driven sequencing an environmental event must occur prior to the occurenrence of the next event in the sequence.

FALSE

once latched the tag of a latch output remains a 2 even when the rung turns ____

FALSE

when first mcr is false all outputs within the fence are ____, even if rung inputs are true within the fence

FALSE

when voltage is applied to input terminal local:1:I:data.1 of a plc, a programmed xio instruction addressed local 1:I:data.1 will be ____

FALSE

what set of instructions govern the basic routines of the ESM?

FIRMWARE

an mcr instruction that is used with the ____can also be used to initialize a plc application to some predetermined state.

FIRST SCAN FLAG

____memory is used by the plc's operating system

FLASH

The most common form of memory used to store, back up, or transfer plc programs is:

FLASH EEPROM/EEPROM

A programmable controllers outputs can control both ___ and electric motors

FLUID POWER

the bcd system uses ____ bits to represent each decimal digit.

FOUR

the bcd system uses____ bits to represent each decimal digit.

FOUR (4)

when troubleshooting a plc control system., the first step should be? ____

IDENTIFY THE FAULTY OPERATION

one of the advantages of a plc is that it permits many instructions to be controlled by one ___

INPUT

plc memory files use ____

INPUT IMAGES

plc memory files use ____to address hardwired inputs

INPUT IMAGES

interfacing between the on/off field devices is the function of what? _

INPUT MODULE

what is the function of an input module ___

INTERFACE BETWEEN ON AND OFF DEVICES

a rung that uses a ____can be used to control the start/stop of any automatic program.

INTERNAL COIL

one application of an ___ instruction is to control the simultaneous start and stop of several outputs.

INTERNAL INPUT

a TOF instruction: IS A NON RETENTIVE COUNTER THAT WAITS TO DE-ENERGIZE

IS A NON RETENTIVE COUNTER THAT WAITS TO DE-ENERGIZE

plc input module has the following purpose ___

IT CONNECTS SIGNALS FROM THE PROCESSOR AS INPUTS TO THE PLC

what is decimal number 6 converted to binary?

0110

the first scan flag is set for only the ____

FIRST SCAN

auxiliary stop pushbuttons are always ___ contacts in ladder logic

XIC

what is decimal number 41 converted to binary ____

101001

what is decimal numer 41 converted to binary (add the 1's to total 41)

101001

if a 4 digit led display reads 2792 in decimal. what is the equivalent in binary?

0010011110010010

A technician knows that the plc program is not receiving a start command from a switch in the field. how could the technician determine if the problem is a bad switch or a bad input module? ____

CHECK TO SEE IF THERE IS POWER GOING TO THE SWITCH

serial communication is best described by ____

CONNECTING RS-232 CABLE BETWEEN TWO DEVICE

when troubleshooting, observing that all input I/O state indicators are off (but processor indicators are on) means that ___

CONTROL POWER

the ____ dialog is a studio 5000 software utility that displays configuration, operation, and status information offline and online.

CONTROLLER PROPERTIES

a current sourcing sensor must be matched with a ___ plc input module

CURRENT SINKING

a current sourcing sensor must be used with CURRENT SINKING ____

CURRENT SINKING INPUT MODULE

a current sinking input module must be used with ___

CURRENT SOURCINGSENSOR

the ___instruction is an internal output instruction that converts bcd data, such as an input tag, into a DECIMAL equivalent.

DECIMAL

when the ____instruction is energized all program logic between it and lbl instructions is frozen

JMP

when the ___instruction is energized, all program logic between it and the lbl instructions is frozen in its last state.

JMP

an ____display is an output device that enables a machine operator to view the accumulated or preset value of an instruction without the use of a programming terminal

LED

the bcd numbering system is used with bcd thumbwheel switches and ___

LED DISPLAYS

plc discrete output turns real-world ___ devices on or off as directly by the plc.

LOAD

the output interface module connects to ____

LOAD DEVICES SUCH AS LAMPS OR SOLENOIDS

documenting physical connections of the plc to machine electrical hardware is known as ____

MAIN USE OF INPUT AND OUTPUTS

the accumulated (acc) value of an up/down counter is equal to the number of up counts ___the number of down counts.

MINUS

in industry automatic machines must perform operations ___

REPEATEDLY

the ton instruction is similar to the rto instrcution, however, the ton instruction tag ____when the instruction is de-energized

RESETS

_____ networks are protection devices that are used to reduce the problems with ac electricity in relay-type output modules.

RESISTOR AND CAPACITOR

a specific application of an interlock program is the ___ motor control

REVERSING

a ____ is a collection of program instructions in a single programming language such as ladder logic that provieds intructions to a controller

ROUTINE

the ____ is the area that displays the ladder logic for the routine

ROUTINE VIEW

____ contain the actual operating instruction (or executable code) that determines the operation of the controller

ROUTINES

the first step in troubleshooting the controllogix chassis power supply is ____

VERIFY THAT THE POWER SUPPLY IS ON

a normally closed auxiliary pushbutton is used with an ___ instruction to turn off a seal in logic output.

XIC


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