Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Question
Chapter 15.4, Problem 5RQ
Program Plan Intro
a.
Counter:
- It is similar to timer concept.
- It is used to count the changes that are produced by the state of an outside trigger signal.
- It is a programmable logic controller (PLC) instruction that either counting up or counting down an integer value when produced by the change of a bit from “0” to “1” or “false” to “true”.
- In PLC, counter contains three types.
- Up counters.
- Down counters.
- Up/Down counters.
Explanation of Solution
b.
Counter bits set for DN:
- DN is represented as count-up done bit.
- This status bit returns the result as a Boolean value...
Explanation of Solution
c.
Counter bits set for CD:
- CD is represented as count-down enable bit.
- This status bit returns the result as a Boolean value...
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Students have asked these similar questions
An NRZ (Non-Return to Zero) means that no bit is encoded with Zero level volts.
Select one:
A. True
B. False
The hamming code for the data " 10101010" will be
Note : the first bit is the right most bit
O a. 0101
on
O b. 0100
O c. 0110
O d. 1100
O e. Non of the choices
A simple parity-check code cannot detect
errors.
Select one:
O a. None
O b. both even and odd bits
O c. even number of bits
O d. odd number of bits
Chapter 15 Solutions
Programmable Logic Controllers
Ch. 15.1 - Prob. 1RQCh. 15.1 - Prob. 2RQCh. 15.1 - Prob. 3RQCh. 15.1 - Prob. 4RQCh. 15.1 - Prob. 5RQCh. 15.1 - Prob. 6RQCh. 15.1 - Prob. 7RQCh. 15.1 - Prob. 8RQCh. 15.1 - Prob. 9RQCh. 15.1 - Prob. 10RQ
Ch. 15.1 - Prob. 11RQCh. 15.1 - Compare the accessibility of program scope and...Ch. 15.1 - Prob. 13RQCh. 15.1 - What is the difference between a produced tag and...Ch. 15.1 - Prob. 15RQCh. 15.1 - State the data type used for each of the...Ch. 15.1 - Describe the make-up of a predefined structure.Ch. 15.1 - Describe the make-up of a module-defined...Ch. 15.1 - Describe the make-up of a user-defined structure.Ch. 15.1 - Prob. 20RQCh. 15.1 - Prob. 21RQCh. 15.1 - Prob. 22RQCh. 15.1 - Prob. 23RQCh. 15.2 - Prob. 1RQCh. 15.2 - Prob. 2RQCh. 15.2 - Prob. 3RQCh. 15.2 - Prob. 4RQCh. 15.2 - Prob. 5RQCh. 15.2 - Prob. 6RQCh. 15.2 - Prob. 7RQCh. 15.2 - Prob. 8RQCh. 15.2 - Prob. 9RQCh. 15.2 - Prob. 10RQCh. 15.2 - Prob. 11RQCh. 15.2 - Extend control of the original ControlLogix...Ch. 15.2 - Prob. 3PCh. 15.3 - Prob. 1RQCh. 15.3 - Prob. 2RQCh. 15.3 - Prob. 3RQCh. 15.3 - Prob. 4RQCh. 15.3 - Prob. 5RQCh. 15.3 - Prob. 6RQCh. 15.3 - Prob. 7RQCh. 15.3 - Prob. 8RQCh. 15.3 - Prob. 9RQCh. 15.3 - Prob. 10RQCh. 15.3 - Prob. 11RQCh. 15.3 - Prob. 12RQCh. 15.3 - Modify the original CLX ten-second TON timer...Ch. 15.3 - Prob. 2PCh. 15.3 - Prob. 3PCh. 15.3 - Prob. 4PCh. 15.3 - Prob. 5PCh. 15.3 - Prob. 6PCh. 15.4 - Prob. 1RQCh. 15.4 - Prob. 2RQCh. 15.4 - Prob. 3RQCh. 15.4 - Prob. 4RQCh. 15.4 - Prob. 5RQCh. 15.4 - Prob. 6RQCh. 15.4 - Prob. 7RQCh. 15.4 - Prob. 1PCh. 15.4 - Prob. 2PCh. 15.5 - Prob. 1RQCh. 15.5 - Prob. 2RQCh. 15.5 - Prob. 3RQCh. 15.5 - Prob. 4RQCh. 15.5 - Prob. 5RQCh. 15.5 - Construct a ControlLogix ladder rung with compare...Ch. 15.5 - Prob. 2PCh. 15.5 - A single pole switch is used in place of the two...Ch. 15.6 - Prob. 1RQCh. 15.6 - Name the four basic elements of an FBD.Ch. 15.6 - Prob. 3RQCh. 15.6 - Prob. 4RQCh. 15.6 - Prob. 5RQCh. 15.6 - Prob. 6RQCh. 15.6 - Prob. 7RQCh. 15.6 - Prob. 8RQCh. 15.6 - Prob. 9RQCh. 15.6 - Prob. 10RQCh. 15.6 - Prob. 11RQCh. 15.6 - How is a function block feedback loop created?Ch. 15.6 - Prob. 13RQCh. 15.6 - Prob. 14RQCh. 15.6 - Prob. 1PCh. 15.6 - Prob. 2PCh. 15.6 - Prob. 3PCh. 15.6 - Prob. 4PCh. 15.6 - Prob. 5P
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Similar questions
- 271. In Return to Zero (RZ), the signal changes not between bits but a. before the bit b. after the bit c. doesn d. during the bitarrow_forward10. For each of the following pairs of integers, subtract the second from the first. Show the operands and the answers in decimal, assuming the numbers are signed (two's complement). c. 111010 to 0111 a. 010101 001100 b. 010001 011000arrow_forwardIn Hamming code if the original word is 11001110101 then the number of check bits needed is? a. 3 O b. 5 О с. 6. O d. 4arrow_forward
- QUESTION 1 Burst error must occur in consecutive bits D True O Falsearrow_forward00000110b in ASCII stands for End of Transmission. Select one: True O Falsearrow_forward1. Compute the Borrow output (B, )for the following combination of bits: B D=A-B B. 1 la 1 b a. a=0 and b=1 O b. a =1 and b=0 O C. a=1 and b=1 d. a=0 and b=0arrow_forward
- 3. Sketch the following bits, 01100, encoded as: a) ASKarrow_forward4. The following 16-bit hexadecimal values are stored in two's complement code. What are the equivalent signed decimal numbers? a. 1234 C. 5678 e. fedc g. 8000 i. 8001 b. 8765 d. edcc f. 07e0 h. 7fffarrow_forwardQuestion 3: For the following 16 byte input in Hexadecimal notation "43 59 42 20 32 34 31 20 63 6f 75 72 73 65 20 48 57" a. Apply the AES substitution operation using the S-box. b. Take the results from part (a) and apply the AES shift row operation.arrow_forward
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