Programmable Logic Controllers
5th Edition
ISBN: 9780073373843
Author: Frank D. Petruzella
Publisher: McGraw-Hill Education
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Chapter 2, Problem 57RQ
Program Plan Intro
Human Machine Interface (HMI):
- Human Machine Interface (HMI) is a hard-wired panel board which helps to operate the control process using a simple touch-screen on the required control icon.
- HMI eliminates the use of hard-wired components like switches, relays, push buttons, etc.
- During control operations, HMI enables one to watch the operation results by means of graphs.
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There are many different process technologies used to achieve PLDs' programmable connections; provide six examples.
Draw the complete working schematic for the interface of PIC microcontroller with a single digit seven segment display so that the following pins are connected to the digits of the 7 segment display as follows: RE0 connected to a, RE1 for b, RE2 for c, RD0 for d, RD1 for e, RD2 for f, RD3 for g, RD4 for decimal point. Also show a temperature sensor connected to RA0 for reading the analog input. Write a short program to initialize the corresponding ports and show the character ‘A’ followed by the character ‘b’ with a 1 second delay in a continuous loop. Clearly show how the patterns for the characters are derived and used for the program in a neat table.
IC
is a programmable parallel 1/O device interface.
Chapter 2 Solutions
Programmable Logic Controllers
Ch. 2 - Prob. 1RQCh. 2 - What is the function of a PLC output interface...Ch. 2 - Prob. 3RQCh. 2 - Prob. 4RQCh. 2 - Prob. 5RQCh. 2 - Prob. 6RQCh. 2 - Prob. 7RQCh. 2 - Prob. 8RQCh. 2 - Prob. 9RQCh. 2 - Prob. 10RQ
Ch. 2 - Prob. 11RQCh. 2 - What are the advantage and the disadvantage of...Ch. 2 - With reference to PLC discrete input modules: a....Ch. 2 - Prob. 14RQCh. 2 - Explain the function of the backplane of a PLC...Ch. 2 - Prob. 16RQCh. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - What electronic element can be used as the...Ch. 2 - With reference to discrete output module current...Ch. 2 - What electronic element can be used as the...Ch. 2 - Prob. 22RQCh. 2 - Prob. 23RQCh. 2 - Prob. 24RQCh. 2 - Prob. 25RQCh. 2 - Prob. 26RQCh. 2 - Prob. 27RQCh. 2 - Prob. 28RQCh. 2 - Prob. 29RQCh. 2 - Explain the difference between a unipolar and...Ch. 2 - Prob. 31RQCh. 2 - In what two ways can the loop power for current...Ch. 2 - Prob. 33RQCh. 2 - Prob. 34RQCh. 2 - Prob. 35RQCh. 2 - Write a short explanation for each of the...Ch. 2 - Write a short explanation for each of the...Ch. 2 - Prob. 38RQCh. 2 - Prob. 39RQCh. 2 - Prob. 40RQCh. 2 - Prob. 41RQCh. 2 - Prob. 42RQCh. 2 - Prob. 43RQCh. 2 - Prob. 44RQCh. 2 - Prob. 45RQCh. 2 - Prob. 46RQCh. 2 - Prob. 47RQCh. 2 - What information is normally stored in the ROM...Ch. 2 - Prob. 49RQCh. 2 - Prob. 50RQCh. 2 - Prob. 51RQCh. 2 - Prob. 52RQCh. 2 - Prob. 53RQCh. 2 - Prob. 54RQCh. 2 - Prob. 55RQCh. 2 - Prob. 56RQCh. 2 - Prob. 57RQCh. 2 - Prob. 58RQCh. 2 - Prob. 59RQCh. 2 - Prob. 60RQCh. 2 - What is the function of a transducer?Ch. 2 - Prob. 62RQCh. 2 - Prob. 1PCh. 2 - Assume a thermocouple, which supplies the input to...Ch. 2 - With reference to I/O module specifications: a. If...Ch. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Prob. 6P
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- What kind of issues may be solved with systolic arrays and why?arrow_forwardAdvantages of Custom ASIC design over FPGA's include Select one: a. Calculation Speed b. Clock Speed C. Protoyping Cost d. Programmabilityarrow_forwardDesign an interfacing circuit to interface a 2KB ROM and 4KB RAM to 8085 processor.arrow_forward
- The frequency of the crystal oscillator for 80C51 MCU is 12MHz. Design a software delay program with a delay time of 20ms in assembly language.arrow_forwardExplain the concept of in-circuit debugging and its significance in microcontroller development.arrow_forwardIn-system programming of a PLD typically utilizes(a) an embedded clock generator (b) an embedded processor(c) an embedded PROM (d) both (a) and (b)(e) both (b) and (c)arrow_forward
- Explain the significance of oscillators in microchip designs.arrow_forwardThe boundary scan TAP stands for(a) test access point (b) test array port(c) test access port (d) terminal access patharrow_forwardIn a functional simulation, the user must specify the(a) specific target device (b) output waveform(c) input waveforms (d) HDLarrow_forward
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