List any four input and four output devices used with PLC.

List any four input and four output devices used with PLC.
by

1 Answer

Answer :

Input device:

1. Push button.

2. Temperature switches.

3. Limit switches.

4. Pressure switches.

5. Level Switches.

6. Proximity Switches.

Output devices:

1. Motor.

2. Display.

3. Heater coil.

4. Relay.

5. Lamp.

6. Buzzer.
by

Related questions

Draw typical wiring details & four specifications of AC output module of PLC.

Description : Draw typical wiring details & four specifications of AC output module of PLC.

Last Answer : The below figure show the basic field wiring for digital 120V AC output module. The Wiring diagrams show how wires of output devices are connected to screw terminals of PLC modules. As per the wiring ... excessive current from damaging the wiring to the field devices.  Specifications:-

List typical inputs and outputs for PLC (four input and any four output).

Description : List typical inputs and outputs for PLC (four input and any four output).

Last Answer : Typical PLC inputs  Push Button  Selector Switch  Proximity switch  FOOT switch, level switch  Analog input  Typical PLC outputs  Contactor Coil, solenoid, relay  Indicating Lamp  Buzzer  Alaram annunciator

State any two input and output devices of PLC

Description : State any two input and output devices of PLC

Last Answer : Input Devices of PLC: i) Selector switches ii) Push buttons iii) Binary encoders iv) Mechanical/magnetic Limit switches v) Inductive/ capacitive/optical proximity switches vi) Analog transducers ... /Lamps v) Solenoids vi) Continuous/ discrete valves vii)Analog/digital indicators/recorders etc.

List any our input and output of PLC.

Description : List any our input and output of PLC.

Last Answer : Typical PLC inputs  1) Push Button  2) Selector Switch  3) Proximity switch  4) FOOT switch, level switch  5) Analog input  Typical PLC outputs  1) Contactor Coil, solenoid, relay  2) Indicating Lamp  3) Buzzer  4) Alaram annunciator

List & explain the timer instruction of PLC. Draw the ladder diagram to verify (i) OR gate& (ii) NOR gate logic

Description : List & explain the timer instruction of PLC. Draw the ladder diagram to verify (i) OR gate& (ii) NOR gate logic 

Last Answer : Depending on the time delay and operation, there are two types of timers  * PLC timer- (i) ON delay timer  (ii) OFF delay timer Description (i) ON delay timer 1) This instruction counts time interval when ... a) OR gate ladder diagram y = A + B b)NOR gate ladder diagram

Drawthe PLC ladder diagram of ON-OFF control of lamp. Write the input and output devises.

Description : Drawthe PLC ladder diagram of ON-OFF control of lamp. Write the input and output devises.

Last Answer : Diagram:

Explain the need of PLC in automation.

Description : Explain the need of PLC in automation.

Last Answer : Need of PLC in automation * To reduce human efforts. * To get maximum efficiency from machine and control them with human logic * To reduce complex circuitry of entire system * To eliminate ... in working conditions. * Fast and Easily programmed and have an easily understood programming language. 

Describe in brief memory organization of PLC.

Description : Describe in brief memory organization of PLC.

Last Answer : Different types of memory that are generally used in PLC s are as follows: 1. RAM: 2. ROM A.)EPROM B.)EEPROM  In PLC program instructions are stored in the ... is carried out and stored. User memory consists of program files or register table and holds the complete operation.

Define with respect to PLC i) scanning cycle ii) speed of execution.

Description : Define with respect to PLC i) scanning cycle ii) speed of execution.

Last Answer : Scanning Cycle * It is number of states/steps which the controller follows when it is put in RUN mode. * It is also called as operating cycle and is defined as the number of states ... is referred as a speed of execution. Higher CPU speeds provide faster performance that shortens task time. 

Give the classification of PLC. Explain modular PLC in brief.

Description : Give the classification of PLC. Explain modular PLC in brief. 

Last Answer : CLASSIFICATION OF PLC PLC can be classified as follows 1.According to structure of PLC a. Integral type b. Modular Type 2. Depending upon the no. of I/Os a. Small( ... easy to assemble, easy expansion and maintenance. * Large and medium-sized PLC generally use the modular structure. 

Consider a continuous-time system with input x(t) & output y(t) are related by y(t) = x (sin t). This system is

Description : Consider a continuous-time system with input x(t) & output y(t) are related by y(t) = x (sin t). This system is (A) causal & linear (B) non-causal & linear (C) causal & non-linear (D) non-causal & non-linear

Last Answer : Consider a continuous-time system with input x(t) & output y(t) are related by y(t) = x (sin t). This system is non-causal & linear

If a step function is applied to the input of a system and the output...

Description : If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is?

Last Answer : If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is not necessarily stable.

The initial response when the output is not equal to input is called?

Description : The initial response when the output is not equal to input is called?

Last Answer : The initial response when the output is not equal to input is called Transient response.

(i) List and explain the types of ROM. (ii) List any four advantages of PLC.

Description : (i) List and explain the types of ROM.  (ii) List any four advantages of PLC.

Last Answer : ROM types  1) PROM  2) EPROM  3) EEPROM  1) PROM: - (Programmable Read Only Memory): In this memory it may be programed once and once only, by the user/programmer. The user than programs ... signals.  10) PLC can provide security for ladder programming.  11) Speed of PLC is in milliseconds.

How a PLC can be used to handle an analog input? Justify.

Description : How a PLC can be used to handle an analog input? Justify.

Last Answer : Diagram:-- Explanation: For analog operation, the level of a PLC input signal is sensed by an analog input module, like in a data acquisition system when input parameters may ... first converted into machine code and then the necessary control signals are generated to the output module. 

Draw and explain analog input module of PLC.

Description : Draw and explain analog input module of PLC.

Last Answer : Analog input module are used for supplying analog input signal to PLC. Analog signals are generated by transducers, potentiometers. PLCs analog input module consists of analog-to-digital converter (ADC). ... of PLC. PLC reads the binary number and takes further decision based on the required logic 

Draw a block diagram of digital output module of PLC.

Description : Draw a block diagram of digital output module of PLC.

Last Answer : Block diagram of digital output module of PLC:

Identify input/output devices from the clues given below: (a) Transfers typed or handw -Technology

Description : Identify input/output devices from the clues given below: (a) Transfers typed or handw -Technology

Last Answer : (a) Scanner(b) Barcode reader(c) Optical Mark Recognition (OMR)(d) Magnetic Ink Character Recognition (MIGR)(e) Printer (f) Speaker

What are examples of input and output devices?

Description : What are examples of input and output devices?

Last Answer : Some common input devices are: a mouse, a keyboard, a microphone, a webcam. Common output devices are: monitor (LCD, LED, and CRT are the most common for computers), speakers, headphones, and printers.

A micropocessor consists of: a) Arithmetic Logic Unit (ALU) b) Memories c) Input / Output devices d) All the above

Description : A micropocessor consists of: a) Arithmetic Logic Unit (ALU) b) Memories c) Input / Output devices d) All the above

Last Answer : Ans: A

The computer or system peripherals that receives data from processing unit are called ___________ A. Input Devices B. Output Devices C. Both (A) and (B) D. None of the Above

Description : The computer or system peripherals that receives data from processing unit are called ___________ A. Input Devices B. Output Devices C. Both (A) and (B) D. None of the Above

Last Answer : B. Output Devices

What type of devices are computer speakers or headphones? A. Input B. Output C. Input/Output D. None of the Above

Description : What type of devices are computer speakers or headphones? A. Input B. Output C. Input/Output D. None of the Above

Last Answer : B. Output

Devices that enter information and let you communicate with the computer are called: a) Input Devices b) Hardware c) Output Devices d) None of These

Description : Devices that enter information and let you communicate with the computer are called: a) Input Devices b) Hardware c) Output Devices d) None of These

Last Answer : a) Input Devices

Hardware includes a) all devices used to input data into a computer b) sets of instructions that a computer runs or executes c) the computer and all the devices connected to it that are used to input and output data d) all devices involved in processing information including the central processing unit, memory and storage e) None of these

Description : Hardware includes a) all devices used to input data into a computer b) sets of instructions that a computer runs or executes c) the computer and all the devices connected to it that ... involved in processing information including the central processing unit, memory and storage e) None of these

Last Answer : c) the computer and all the devices connected to it that are used to input and output data

A(n) ______ is a set of programs designed to manage the resources of a computer, including starting the computer, managing programs, managing memory and coordinating tasks between input and output devices. a) application suite b) compiler c) input/output system d) operating system e) None of these

Description : A(n) ______ is a set of programs designed to manage the resources of a computer, including starting the computer, managing programs, managing memory and coordinating tasks between input and output devices. a) application suite b) compiler c) input/output system d) operating system e) None of these

Last Answer : d) operating system

11. _________ devices convert human understandable data and programs into a form that the computer can processa) Printing b) Output c) Solid stated) Input e) None of these.

Description : 11. _________ devices convert human understandable data and programs into a form that the computer can process. a) Printing b) Output c) Solid state d) Input e) None of these

Last Answer : d) Input

Every Component of your computer is either - 1) Software of CPU/RAM 2) Input Devices and Output Devices 3) Application software or System Software 4) None of these

Description : Every Component of your computer is either - 1) Software of CPU/RAM 2) Input Devices and Output Devices 3) Application software or System Software 4) None of these

Last Answer : 2) Input Devices and Output Devices

.In an 8085 based system, the maximum number of input output devices can be connectedusing I/0 mapped I/O method isa) 64 b) 512 c) 256 d) 65536

Description : .In an 8085 based system, the maximum number of input output devices can be connectedusing I/0 mapped I/O method isa) 64 b) 512 c) 256 d) 65536

Last Answer : b) 512

What Are Input & Output Devices?

Description : What Are Input & Output Devices?

Last Answer : Answer :Keyboards, Floppy disk are the examples of input devices. Printer, LED / LCD display, CRT Monitor are the examples of output devices.

Sensing organs as input, mechanical movement organs as output and central nervous system (CNS) in brain as control and computing devices is known as _____ of human being A. Information Control Paradigm B. Information Processing Paradigm C. Information Processing Control D. None of above

Description : Sensing organs as input, mechanical movement organs as output and central nervous system (CNS) in brain as control and computing devices is known as _____ of human being A. Information Control Paradigm B. Information Processing Paradigm C. Information Processing Control D. None of above

Last Answer : B. Information Processing Paradigm 

List advantages and applications of PLC.

Description : List advantages and applications of PLC.

Last Answer : The advantages of PLC are as follows: 1. Flexible in Nature: One model of PLC can be used for different operations as per requirement. 2. Easy to install and troubleshooting: In hard ... 1.Continuous bottle filling system 2.Batch mixing system 3.stage air conditioning system 4.Traffic control 

List any two advantages and any two disadvantages of PLC.

Description : List any two advantages and any two disadvantages of PLC.

Last Answer : Advantages of PLC: i) Increased productivity ii) Increased product quality iii) Increased flexibility and convertibility iv) Reduced manpower v) Reduced cost of product vi) Better inventory control vii) Increased ... v) PLCs are not very good at handling large amount of data, or complex data.

List and explain the different counters of PLC in detail.

Description : List and explain the different counters of PLC in detail.

Last Answer : A counter in PLC is an instruction equivalent to mechanical counter. A counter block of PLC has two control inputs, Count line and Reset line. When count line makes FALSE-to-TRUE transition, the counter ... down counter. The up-down counter has three inputs, count up, count down and reset.

Draw the block diagram of discrete input module & explain each block.

Description : Draw the block diagram of discrete input module & explain each block.

Last Answer : Power conversion: It consists of rectifier which converts the incoming AC signal to a pulsating dc level, which is passed through filter and other logic in order to deliver a clean and denounced dc ... Logic section: It passes the input signal to the module s input address LED and the CPU.

What is the steady state error of type-0 system for ramp input?

Description : What is the steady state error of type-0 system for ramp input?  A) ∞ B) A/K C) A/(1+K) D) 0

Last Answer : What is the steady state error of type-0 system for ramp input?  A) ∞ B) A/K C) A/(1+K) D) 0

For a feedback control system of type 2, the steady error for a rap input is

Description : For a feedback control system of type 2, the steady error for a rap input is  A) Infinite B) Constant C) Zero D) Indeterminate

Last Answer : For a feedback control system of type 2, the steady error for a rap input is Zero 

If stability error for step input and speed of response be the criteria for design, what controller would you

Description : If stability error for step input and speed of response be the criteria for design, what controller would you recommend (1) P controller (2) PD controller (3) PI controller (4) PID controller

Last Answer : If stability error for step input and speed of response be the criteria for design, what controller would you recommend (1) P controller (2) PD controller (3) PI controller (4) PID controller

Velocity error constant of a system is measured when the input to the ...

Description : Velocity error constant of a system is measured when the input to the system is unit _______ function.

Last Answer : Velocity error constant of a system is measured when the input to the system is unit ramp function.

_________is the reference input minus the primary feedback.

Description : _________is the reference input minus the primary feedback.

Last Answer : Actuating signal is the reference input minus the primary feedback.

A signal other than the reference input that tends to affect the value of controlled variable is known as ?

Description : A signal other than the reference input that tends to affect the value of controlled variable is known as ?

Last Answer : A signal other than the reference input that tends to affect the value of controlled variable is known as disturbance.

In a closed-loop system in which the output is the speed of a motor, the output rate control can be used to_________.

Last Answer : In a closed-loop system in which the output is the speed of a motor, the output rate control can be used to limit the acceleration of the motor.

A phase lag lead network introduces in the output?

Description : A phase lag lead network introduces in the output?

Last Answer : A phase lag lead network introduces in the output lag at low frequencies and lead at high frequencies.

In a control system the output of the controller is given to?

Description : In a control system the output of the controller is given to?

Last Answer : In a control system the output of the controller is given to final control element.

The output of a feedback control system must be a function of?

Description : The output of a feedback control system must be a function of?

Last Answer : The output of a feedback control system must be a function of reference and output.

Any externally introduced signal affecting the controlled output is called a?

Description : Any externally introduced signal affecting the controlled output is called a?

Last Answer : Any externally introduced signal affecting the controlled output is called a stimulus.

A control system in which the control action is somehow dependent on the output is known as

Description : A control system in which the control action is somehow dependent on the output is known as?

Last Answer : A control system in which the control action is somehow dependent on the output is known as Closed loop system.

List any two ratings of digital input and digital output module each.

Description : List any two ratings of digital input and digital output module each.

Last Answer : Ratings of Digital Input Module: i) Rated voltage & current: +24V DC at 4mA/120V AC at 6mA/230V AC at 9mA ii) Specified operational voltage range: 0-30V DC/ 264V AC. iii) Absolute maximum input voltage: + ... / 2A for relay type/0.5A AC vi) Rated current/common: 6A DC/8A for relay type/0.5A AC

Which of the following expresses the relationship of the input and output frequencies in a full wave rectifier? A. The output frequency is the same as input frequency. B. The output frequency is one-half the input frequency. C. The output frequency is twice the input frequency. D. The output frequency is four times the input frequency.

Description : Which of the following expresses the relationship of the input and output frequencies in a full wave rectifier? A. The output frequency is the same as input frequency. B. The output frequency is ... frequency is twice the input frequency. D. The output frequency is four times the input frequency.

Last Answer : Answer: C

8096 has ___ general purpose I/O ports, Port 2 includes ______ of the following i) two quasi-bidirectional I/O lines ii) two output lines iii) four input lines iv) open drain outputs a) 4, i, iv b) 6, ii, iii c) 4, i,ii,iii d) 6, i, ii, iv

Description : 8096 has ___ general purpose I/O ports, Port 2 includes ______ of the following i) two quasi-bidirectional I/O lines ii) two output lines iii) four input lines iv) open drain outputs a) 4, i, iv b) 6, ii, iii c) 4, i,ii,iii d) 6, i, ii, iv

Last Answer : c) 4, i,ii,iii

8096 has ___ general purpose I/O ports, Port 2 includes ______ of the following i) two quasi-bidirectional I/O lines ii) two output lines iii) four input lines iv) open drain outputs a) 4, i, iv b) 6, ii, iii c) 4, i,ii,iii d) 6, i, ii, iv

Description : 8096 has ___ general purpose I/O ports, Port 2 includes ______ of the following i) two quasi-bidirectional I/O lines ii) two output lines iii) four input lines iv) open drain outputs a) 4, i, iv b) 6, ii, iii c) 4, i,ii,iii d) 6, i, ii, iv

Last Answer : c) 4, i,ii,iii