Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 1, Problem 2RQ
Identify four tasks in addition to relay switching operations that PLCs are capable of performing.
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Design a PLC program and prepare a typical I/O
connection diagram and ladder logic program for
the following motor control specifications:
• Three starters are to be wired so that each starter
is operated from its own start/stop pushbutton
station.
• A master stop station is to be included that will
trip out all starters when pushed.
Discuss in detail the components of a PLC with suitable sketch.
A PLC is used to control a single-axis robot, in which the axis is driven by a pneumatic cylinder.
An output signal to the pneumatic cylinder causes it to extend (ON state). When there is no
signal, the pneumatic cylinder retracts (OFF state). The gripper is an also driven by a pneumatic
cylinder. The gripper open position is an OFF state and the closed position is an ON state. In
order to perform a task, the following sequence of operations must be performed:
TH
Sequence No.
Аxis
Gripper
OFF
OFF
1
ON
OFF
ON
ON
3
OFF
ON
4
OFF
OFF
The process begins when the start bush button is ON and a part triggers a limit switch. For
safety, an emergency switch is used to shut off the entire system. Design a PLC ladder diagram
for this application.
Chapter 1 Solutions
Programmable Logic Controllers
Ch. 1 - Prob. 1RQCh. 1 - Identify four tasks in addition to relay switching...Ch. 1 - Prob. 3RQCh. 1 - Prob. 4RQCh. 1 - Prob. 5RQCh. 1 - Prob. 6RQCh. 1 - Explain the main function of each of the following...Ch. 1 - What are the two most common types of PLC...Ch. 1 - Prob. 9RQCh. 1 - Prob. 10RQ
Ch. 1 - Answer the following with reference to the process...Ch. 1 - Prob. 12RQCh. 1 - Answer the following with reference to the process...Ch. 1 - Prob. 14RQCh. 1 - Compare the PLC and PC with regard to: a. Physical...Ch. 1 - Prob. 16RQCh. 1 - Prob. 17RQCh. 1 - Prob. 18RQCh. 1 - Prob. 19RQCh. 1 - Prob. 20RQCh. 1 - List five factors affecting the memory size needed...Ch. 1 - Prob. 22RQCh. 1 - Given two single-pole switches, write a program...Ch. 1 - Given two single-pole switches, write a program...Ch. 1 - Prob. 3PCh. 1 - Prob. 4PCh. 1 - Prob. 5P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Explain in detail the architecture of a PLC system by exploring on I/O modules, CPU, power Supply and programming devices.arrow_forwardWhat is the difference between modes of operation (run,prog,rem)in plcarrow_forwardCreate a PLC ladder logic diagram for an alarm that turns on when either A counts up to 10, or B counts down to 7.arrow_forward
- 5-Integrated circuits made from CMOS are compatible with TTL IC's. This statement is A) True B) False C) Some versions are compatible D) TTL and CMOS should never be connected together due to different voltage levels E) TTL and CMOS should never be connected together due to difference in speedarrow_forwardFigure Q4(c) shows a block diagram of the Control Unit. Explain its FOUR (4) inputs and its TWO (2) outputs. Input A Output D Input B Control Unit Input D Input C Output F Figure Q4(c) Control busarrow_forwardDraw a PLC ladder logic program that will control a motor in two different directionsarrow_forward
- To illustrate the range of process technologies used to realise PLDs' programmable connections, provide six examples.arrow_forwardDesign PLC controller to control the operation of beverage machine to choose pepsi, seven up or coca cola drinks using ladder diagram and functional block diagramarrow_forward.............Control loop is a continuous cycle of the PLC reading Ladder Logic O Outputs Inputs Oarrow_forward
- 1- Write a PLC ladder program to implement the process illustrated in Figure. 2- Indicate all the input and output field devices in their un-actuated conditions with symbolic addresses.arrow_forwardIn a circuit design to be made using the 89C52 microcontroller, if a PWM signal is produced and DC motor speed control is desired, which module will definitely be used in the microcontroller? a) I / O b) ADC c) PWM d) Serial communication e) DACarrow_forward
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