Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Chapter 5, Problem 16RQ
Explanation of Solution
a.
Makeup of a ladder logic rung:
- The ladder logic rung refers to the logical representation of physical electrical wiring.
- It includes a set of input conditions which is represented by contact instructions...
Explanation of Solution
b.
Identifying contacts and coil of a rung:
- The contacts and coil of a ladder logic rung are identified by their addresses.
- Each contact or coil is referenced with an address which identifies what is being evaluated and what is being controlled...
Explanation of Solution
c.
Ladder rung having logic continuity:
- The ladder logic rung is said to have continuity when current flow is established in a ladder rung from one side of the power rail to the other...
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2. Write the Boolean expression of the given logic circuit as shown below.
X.
F =
Question 1
Implement the following logic functions using BJTs. Use the S-Model. Both input and output
should be voltage signals
OUT= A.B + C
OUT = A.B + A.B
(a) Write the logic expression for the output'Y' of the circuit given below. (b) Write the Truth table and pin diagram for EXOR gate
Chapter 5 Solutions
Programmable Logic Controllers
Ch. 5 - What does the memory map for a typical PLC...Ch. 5 - Compare the function of the PLC program and data...Ch. 5 - Prob. 3RQCh. 5 - Prob. 4RQCh. 5 - a. What information is stored in the input image...Ch. 5 - a. What information is stored in the output image...Ch. 5 - Prob. 7RQCh. 5 - List four factors that enter into the length of...Ch. 5 - Prob. 9RQCh. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Answer the following with regard to the Examine If...Ch. 5 - Answer the following with regard to the Examine If...Ch. 5 - Answer the following with regard to the Output...Ch. 5 - A normally closed pushbutton is connected to a PLC...Ch. 5 - Prob. 16RQCh. 5 - Prob. 17RQCh. 5 - Prob. 18RQCh. 5 - Prob. 19RQCh. 5 - Prob. 20RQCh. 5 - Prob. 21RQCh. 5 - Explain the purpose of Windows based programming...Ch. 5 - Prob. 23RQCh. 5 - Prob. 24RQCh. 5 - Prob. 25RQCh. 5 - Prob. 26RQCh. 5 - Assign each of the following discrete input and...Ch. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - Redraw the program shown in Figure 5-57 corrected...Ch. 5 - Redraw the program shown in Figure 5-58 corrected...Ch. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 8PCh. 5 - Write the ladder logic program needed to implement...
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- design with asynchronous logic circuits length of the train=Tl A) the train comes only from the right and the Tl< |X1-X0| Design the asynchronous logic circuit that enables the level crossing to work. B) the train comes from the right only and the Tl> |X1-X0| Design the asynchronous logic circuit that enables the level crossing to work. C)the train can come from both sides and the Tl<|X1-X0| Design the asynchronous logic circuit that enables the level crossing to work. D)the train can come from both sides and the Tl>|X1-X0| Design the asynchronous logic circuit that enables the level crossing to work.arrow_forward(a) Write the logic expression for the output 'Y' of the circuit given below. (b) Write the Truth table and pin diagram for EXOR gate.arrow_forward4. Derive the Boolean expression for the gate structure that clears the sequence counter SC to 0. Draw the logic diagram of the gates and show how the output is connected to the INR and CLR inputs of the SC. Minimize the number of gates.arrow_forward
- Develop a logic circuit necessary to meet the following requirements: A battery-powered lamp in a room is to be operated from two switches, one at the back door and one at the front door. The lamp is to be on if the front switch is on and the back switch is off, or if the front switch is off and the back switch is on. The lamp is to be off if both switches are off or if both switches are on. Let a HIGH output represent the on condition and a LOW output represent the off conditions. The design must include the use of a chip with logic gates and the use of VHDL code.arrow_forward2. Construct the truth table of a logic circuit having three inputs A, B, C, and the output Y is High(1) only in the case when at least 2 of the inputs are high(1).arrow_forward6. Write the minimized output Y for the logic circuit shown: C Y. Darrow_forward
- length of the train=Tl A) the train comes only from the right and the Tl< |X1-X0| Design the asynchronous logic circuit that enables the level crossing to work. B) the train comes from the right only and the Tl> |X1-X0| Design the asynchronous logic circuit that enables the level crossing to work. C)the train can come from both sides and the Tl<|X1-X0| Design the asynchronous logic circuit that enables the level crossing to work. D)the train can come from both sides and the Tl>|X1-X0| Design the asynchronous logic circuit that enables the level crossing to work.arrow_forward.A circuit which is working as NAND gate with positive level logic system will work as gate with negative level logic system.arrow_forwardThe following logic circuit has four inputs A, B, C, and D. Write the Boolean expression for X. Can we simplify it?arrow_forward
- The necessary condition for a fan motor to be switched on (logic "l") is that at least two of the 4 motors named A, B, C, D work together (logic "l") and one of these motors must be an A motor. Design the logic circuit (logic circuit), according to the SOP (minterm), using the Kamaugh Method. Draw the circuit of the function you have obtained Make sure that the circuit you draw is understandable, the function you have written, the truth table and the Karnaugh map are readable.arrow_forwardCreate a Boolean expression for the logic circuit shown in the diagram below? хarrow_forwardDevelop a PLC-based ladder logic program for automatic packaging system: 1.Draw and explain ladder logic diagram to run a conveyor motor using the following conditions: a.AND Logic Function b.NOR Logic Function Analyze the following conditions: a.Upgrade the ladder diagram such that the motor runs in both clockwise and anti-clockwise direction. b.Use two light indicators to indicate the direction of motor rotation. c.Use a photosensor to detect the package on the conveyor d.Add start stop logic (Use both AND logic and OR logic, where necessary use switches to control the direction)arrow_forward
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