Portable PLC Siemens S7-1200
Which of the following is not an optional number of inputs for a digital input module?
4
The ____________ is used to configure and program PLC and HMI projects.
Project view
Most __________ machines perform a number of actions to accomplish the task for which they have been designed.
automatic
WinCC Basic is the version of Siemens HMI software used within the __________ to create HMI projects on a PC.
TIA Portal software
Memory Coil instructions look and operate just like Assignment instructions, except they use an ____ memory address instead of an output address.
internal
Screen selector objects are __________ button objects used to navigate between the screens of an HMI project.
static
Most automatic machines are designed with more than one type of __________ function.
stop
A processor encountering a(n) __________ JMP instruction interrupts normal, linear, program execution by jumping to the LABEL instruction specified, continuing logic execution from that point.
true
The SCALE_X instruction's __________ parameter defines the number or quantity to be Scaled, or plotted onto the linear scale.
VALUE
The PLC and HMI panel also must be connected to the same Profinet network and be configured with ___________ IP addresses to allow the PLC and HMI panel to exchange information over the network.
compatible
An HMI program contains screens and configuration data that are ____ before downloading to the HMI panel.
compiled
A single-cycle reciprocating actuator program cycles __________ each time the operator presses the start pushbutton.
once
Ethernet TCP/IP uses several ______________ to convert data from its native format, such as a text message, into a format that can be sent and tracked from the source node to the destination node on the network.
protocols
The Siemens ______________ software is used to program Siemens S7-1200 automation systems.
Totally Integrated Automation (TIA) Portal
N.O. and N.C. contact instructions can be controlled by_________ instructions simply by giving the contacts the address of the instruction.
Assignment
By replacing mechanical components with a PLC, the ___________ of a process becomes faster, cheaper, and more efficient.
control
The physical addresses of the input/output terminals correspond to a(n) __________ location in the PLC.
memory
The __________ is the difference between the maximum and minimum value that may be applied to the sensor and accurately measured.
operating range
The sensitivity of an output transducer is the ratio of the change of its __________ signal to the change in the level of its electrical input signal.
physical output
When energized, Siemens' MUL instruction multiplies the value of the constant or memory location defined at IN1 by the constant or memory location defined at IN2 and outputs the __________ to a user-defined memory location.
product
The KTP700 HMI panel connects to a(n) ____ network by using an Ethernet cable to connect its RJ45 port to a ___ network.
profinet, profinet
A WinCC Basic __________ is a user-developed software program that is run on an HMI panel.
project
The Extended parameters are located by opening the PLC folder, followed by the Technology Objects folder, and then the __________ folder.
Axis
Which programming language is a structured, graphical language?
Sequential Function Chart
A common function of machines is to provide the ability to change the mode of operation from __________ to __________.
automatic, manual
An MC_Power function block is required for every __________ in a motion control project.
axis
Analog input scaling is the conversion of the digitized data returned from analog input channels into more useful __________ such as liters per minute (lpm), revolutions per minute (rpm), or kilopascals (kPa).
engineering units
A button input object is configured as a dynamic input object to __________ data to a PLC to control a machine or process.
input
An HMI panel communicates with one or more PLCs over a network to provide ____________ of a machine or process.
control
The Siemens S7-1200 Count Up (CTU) instruction increases its __________ by one each time its Count Up (CU) input is turned on.
count value
PLC __________ instructions are used to provide count-based control logic.
counter
___________are classified into two groups: static and dynamic.
screen objects
An analog signal board is installed by inserting it into a(n) __________ in the front of an S7-1200 PLC processor.
slot
The __________ is a one-byte PLC memory location that provides four commonly used PLC status and condition logic bits: always on, always off, diagnostic status, and first scan.
system memory byte
Configuring the basic drive parameters includes naming the axis, selecting the PTO output used by the axis, and selecting the __________ used in the project.
system of units
A variable speed drive (VSD) can be controlled by a(n) _________using discrete I/O.
PLC
Commissioning an axis tests the operation of the axis to verify that the axis functions properly under __________ control.
PLC
PLC wiring is greatly simplified and reduced compared to point-to-point wiring.
True
The output instruction of a PLC ladder logic program is called a(n) __________ instruction.
assignment
New project __________ can be added to existing projects or created when the project is first developed.
screens
To start up, operate, and monitor the process, the operator must be able to move between, or navigate, ___ _
screens
Input objects allow an operator to enter numeric values at the HMI panel and __________ the data to a PLC.
send
The PLC is configured to use one of its integrated digital output terminals to supply an output signal that uses a(n) __________ to control the power delivered to a load device.
series of pulses
An I/O field input object is an I/O Field object configured as an __________.
input
Calculate the positioning indicated for a linear potentiometer if sensitivity is 0.01575 mA/mm, the operating range is 0-1000 millimeters (4-20 mA) and the output is 16.4 mA. Position = __________
Applied Process Variable Formula: Input = ( (Output - Output MIN) / Sensitivity ) + Input MIN
The Siemens S7-1200 __________ instruction increases its Count Value (CV) by one each time the Count Up (CU) input is turned on and decreases its CV by one each time the Count Down (CD) input is turned on.
Count Up/Down (CTUD)
__________ is the preferred enterprise level network because of its high speed and standardized hardware and software.
Ethernet
Each analog input requires __________ bytes (or one word) of memory in which to store digitized measurements.
2
__________ homing involves movement of the axis, usually to a homing sensor.
Active
Functions are created by expanding the project's Program blocks folder and double-clicking the __________ object to display the software's Add new block window.
Add new block
The __________ function block is used to perform a sequence of movements when there is an off to on transition at its Execute input.
MC_CommandTable
The __________ function block moves the axis at the velocity specified at the Velocity input when the function block is activated by an off to on transition at its Execute input.
MC_MoveVelocity
The FB call is inserted by opening the __________ folder and dragging the icon for the FB onto the network.
Program block
The TON instruction turns on its __________ after its IN input has been turned on for an amount of time equal to its Preset Time (PT).
Q output
The Siemens S7-1200 Count Down (CTD) instruction decreases its Count Value (CV) by one each time its __________ input is turned on.
Count Down (CD)
A normally open contact acts as a switch to pass power when the status of its referenced component is off.
False
For the PLC and PC to communicate, they must be connected to the same Profinet network and be configured with compatible ____
IP addresses
If you needed to connect a 4-20 mA pressure sensor to a PLC, you would use a(n) ____.
analog input module
A(n) __________ is a measurement device that converts a process variable such as speed, pressure, temperature, or flow into an electrical signal.
analog sensor
The two types of __________ received as an input by an output device or transducer are varying DC voltage and DC current signals.
analog signals
All Siemens S7-1200 controllers provide two integrated __________, for connecting sensors and other analog input devices.
analog voltage inputs
PLC output scaling is the process of converting a desired output (in engineering units) into a(n) __________ that produces the desired output.
analog voltage or current signal
Zero to 10V input signals are applied to the S7-1200's analog input terminal where the __________ samples the signal and converts it into a proportional digital representation.
analog-to-digital converter
One method to have more than one output controlled with the same input logic is to __________ the outputs.
branch
One of the advantages of a PLC is that it permits many instructions to be controlled by one __________ and it doesn't matter how many of these are Normally Open Contact or Normally Closed Contact instructions.
input
The component of a PLC that interfaces between input field devices such as pushbuttons, limit switches, selector switches, and the like and the CPU is the ____.
input module
The analog output scaling formula defines the linear relationship between an analog output device's output range and the __________ required to produce the output.
integer output value
To prevent injury to personnel or damage to production equipment or components, __________ are included in motion control systems to prevent servomotor over travel during a failure.
limit sensors
The Analog Scaling Formula defines the __________ between the sensor's input signal and measurement range, and the digital value returned by the analog input channel.
linear relationship
PLCs are programmed by combining various instructions to form a(n) ____________________ control circuit.
logical
Most PLCs have an instruction set that allow them to perform various __________ functions such as addition, subtraction, division, and multiplication.
math
Comparison instructions __________ compare two values and create a true or false output.
mathematically
Position control function blocks are used to move an axis to a precise position using a __________.
motion profile
The two basic types of input instructions used by the S7-1200 are the __________ instruction, and the Normally Closed Contact instructions.
normally open contact
The program editor is TIA portal's integrated programming utility for developing program functions, function blocks, and __________.
organizational blocks
A PLC operates by continuously examining the conditions of its input terminals, making decisions based on the ladder logic program, and then updating the condition of its ____ terminals.
output
__________ objects are dynamic screen objects that display information on the HMI screen to indicate the status of the machine or process to the operator.
output
The component of a PLC that interfaces between output field devices such as relays, motor starters, annunciators, and the like and the CPU is ____.
output module
PLC seal-in logic works by using an N.O. contact instruction that is connected in ________with the instruction which turns on the output.
parallel
A motion control system uses a PLC or motion controller to control the __________ of one or more motion control axes.
position or velocity
A(n) Human Machine Interface (HMI) panel is a __________ operator station that provides interaction between users and a PLC controlled system.
programmable
Siemens S7-1200 PLCs also have __________ timer instructions. One of these is the Timer On-Delay instruction (TONR).
retentive
The basic concept of a(n) ___________ interlock is to prevent some event from happening unless certain conditions are present that indicate it is safe to do so.
safety
The __________ actually occurs many times each second, so it appears that the ladder logic program is responding directly to the inputs and outputs.
scan cycle
Two applications in which interlocks are used are:_______________ , and safety.
sequencing
Keyboard __________ are the editing commands that are executed by pressing a single key, or two or more keys simultaneously.
shortcuts
The programmable logic controller (PLC) is an assembly of ____________________ digital logic elements designed to make logical decisions and provide control.
solid-state
Symbolic I/O Field output objects can also be configured to provide __________ or instructions to an operator at an HMI panel.
status messages
Output objects provide a numeric or graphical readout of the value __________ at the PLC address defined in the object's tag.
stored
PLC-based on/off control, or __________ control, is a method of regulating process control applications to maintain a process variable within a specified operating range.
two-position control
When energized, the Siemens SUB instruction subtracts the value of the constant or memory location defined at IN2 from the value of the constant or memory location defined at IN1 and outputs the difference to a(n) __________ memory location.
user defined
A PLC output diagram shows the control of an electric motor, whether it is direct or indirect, by the same symbol: a ______________with the label Ml, M2, etc.
circle
The CONV instruction's IN parameter defines the __________ or address to be converted.
constant
The advantage of current-producing sensors is that current signals are affected less by __________ and travel farther than voltage signals.
electrical noise
A PLC time-driven sequencing program can be designed by using a series of timer instructions with each instruction controlling a(n) __________ in the sequence.
event
An industrial network is a high-speed communications connection used to _______ data between production line equipment (i.e. PLCs, robots, drives) and other devices (i.e. PCs in other departments) within a manufacturing facility.
exchange
The __________ parameters of an S7-1200 motion control system are advanced parameters that define the mechanical and dynamic properties of an S7-1200 motion control axis.
extended
The Set output instruction sets the addressed bit to true and the Reset output instruction sets the addressed bit to __________.
false
A programmable controller's outputs can control both fluid power motors and electric motors using two methods of control: direct control, and ____________ control.
indirect
A Symbolic I/O field output object is a Symbolic I/O field object __________ as an output.
configured
An I/O field output object is an I/O Field object __________ as an output.
configured
The __________ memory stores user programs as they are downloaded to the processor.
load
PLCs are different than hard-wired circuits in that the input device and the input instruction do not have to use the same __________.
logic
When scaling analog inputs, the NORM_X instruction normalizes the input by examining the sensor/channel's minimum and maximum limits and expressing the digitized input as a __________ of input channel range.
percentage
The NORM_X and SCALE_X instructions are used to __________ both analog inputs and outputs in S7-1200 PLC systems.
scale
PLC programs can use __________ as well as limit switches to sequence events.
timers
Text objects are groups of __________ that provide information to a user or label other screen objects.
characters
The Siemens ADD instruction is used to arithmetically add two or more values and store the results in a user-defined __________.
memory location
An output transducer used with a PLC system uses the voltage or current level of a PLC output signal to control the level of a(n) __________ such as pressure or flow.
non-electrical process variable
The I/O diagram always identifies each output terminal with a __________ drawn around its address.
Diamond
The S7-1200 PLC system uses the __________ instruction to control a PWM output.
CTRL_PWM
The __________ instruction's IN1 input defines the constant or memory address that is to be divided by IN2.
DIV
Siemens S7-1200 projects are developed using four types of blocks: Organizational blocks, Functions, Function Blocks, and __________.
Data Blocks
____________ inputs are a type of input recognizes only two conditions: on or off.
Discrete
What precaution should be observed when wiring an emergency stop pushbutton to a PLC?
Emergency stop pushbuttons should be hard-wired and, therefore, should not be wired to an input module.
A Siemens S7-1200 PLC is connected to a Profinet network by a(n) _________ cable between its Profinet port and a Profinet network or device.
Ethernet
Profinet is a network protocol based on __________ that is used for communication between distributed I/O devices.
Ethernet TCP/IP
Which programming language offers library functions and custom functions?
Function Block Diagram
Which programming language is considered a low-level language suited for small programs and fast execution?
Instruction List
Which programming language is perhaps the most popular?
Ladder Diagram
The __________ language looks like a ladder with rungs.
Ladder Diagram (LD) or Ladder Logic
Siemens' TIA Portal software, by default, opens in portal view with the __________ action selected.
Open existing project
__________ is an international organization that promotes the use of the IEC61131 standard for PLCs and PLC programming languages.
PLCOpen
The basic operation of PLC ladder logic is very similar to hard-wired logic. The three main similarities are: logic continuity, six logic elements, and __________.
Parallel Network Operation
The motor is started by pressing the __________ on the HMI panel after the VSD has been enabled and the rotation direction has been selected.
Start button
The _________ software is used to compile and download a project to an S7-1200 processor.
TIA Portal
Startup organization blocks execute once when the PLC transitions from __________, or when recovering from loss of power.
Stop to Run mode
Which programming language uses a BASIC style?
Structured Text
The motion control function blocks are located in the __________ of the Instructions window.
Technology Section
__________ are often used to examine input and output status for troubleshooting field devices, program logic, or the PLC.
Watch tables
The __________ of a motion control positioning system is based on the motor starting from a known position called the home position.
accuracy
The analog signal board must be __________ to the project's hardware configuration.
added
A(n) __________ is used to store the values of variables needed by parts of the project.
data block
When entering math instructions, users must assign a(n) __________ to each instruction that defines the length and format of the instruction's parameters.
data type
The TOF timers use a(n) __________ to store the timer's status data.
datablock (DB)
The LABEL instruction defines the program __________ the processor will jump to when it encounters an energized JMP or JMPN instruction with the same address.
destination
A Siemens analog signal board converts __________ provided by the processor into an analog output signal that is applied to the signal board's wiring terminals.
digital output values
In the simplest of two-position control applications, the PLC uses __________ or sensors to monitor the high and low limits of the application's range.
discrete input switches
Symbolic I/O field output objects are used to __________ information about the status of the process.
display
Project____________ is the term for the comments placed in the program to describe the function/operation of a program block, its networks, instructions, and/or addresses.
documentation
After a project has been ___ to a PLC, it is ready to run.
downloaded
Input objects are ____________ screen objects that enable an operator to manually start, stop, or modify the operation of a PLC- controlled process or application.
dynamic
PLC timer instructions are designed to perform the same functions as the __________ they replace: provide control logic by opening and/or closing their contacts after a predetermined amount of time passes.
hard-wired timers
The five numbering systems commonly used by PLCs are: __________, decimal, binary, octal, and binary coded decimal.
hexadecimal
An S7 __________ is a collection of all of the data and programs needed to control a machine or process.
project
The PLC is capable of using four __________ at the same time, PWM1, PWM2, PWM3, and PWM4.
pulse generators
An S7-1200 motion control system uses the Siemens S7-1200 PLC to control the position or velocity of a stepper motor or servomotor system that uses a(n) __________ to control the speed or position of the motor.
pulse interface
The pulsed PTO output signal is similar to a(n) __________ output.
pulse width modulated (PWM)
The Move instruction's IN field can contain either a constant of a data address from which the instruction __________ a value.
reads
An example of a PLC program that performs an event-driven sequence is a __________ program.
reciprocating hydraulic actuator
The physical output signal level of an output transducer with a known input signal level can be calculated using the __________.
transducer output formula
Move instructions are a type of PLC instruction that can __________ a value or a copy of the contents of one memory location to another memory location.
transfer
A(n) __________ is used to drive a motor at speeds that vary from zero to a maximum speed using digital or analog control signals.
variable speed drive
A(n)_________ is used to drive a motor at speeds that vary from zero to a maximum speed using digital or analog control signals.
variable speed drive (VSD)
