Question

In: Electrical Engineering

What is the difference between the DN and EN outputs of a timer or counter in...

What is the difference between the DN and EN outputs of a timer or counter in a PLC? Describe how each of these outputs can be used in a program.

Solutions

Expert Solution

Both EN and DN are used at the outputs of the timer

EN indicates the status of the timer. When EN is ON, it indicates the timer is ON, EN off indicates that the timer is OFF

DN(done) bit is on when the timer completes its time

let us take an example of TON(Timer On Delay) which counts up to 5 seconds

Here Timer indicates the address, time base indicates the units of time or the minimum time, preset indicates the time duration and accumulator starts counting when the timer is on

Here the timer is like a relay with a coil that is energized when the input In 1 occurs. It then closes, after some present time after the input In 1 occurs.so as called rung

Working

when the timer starts, EN is in ON state for this I need to press the input 5 seconds, with a single press it can be done this thing by latching input with B3:0. It starts counting when the Accumulator value is equal to preset, the timer is off and DN is ON

This type of timer is used in applications like conveyor belts, rotating motors etc


Related Solutions

Assuming identical long-run costs, what is the difference between the prices and outputs in the long...
Assuming identical long-run costs, what is the difference between the prices and outputs in the long run under pure competition and under oligopoly? How might the Department of Justice view a merger between equals in a purely competitive market versus an oligopoly market? Why?
1a. Write your Verilog program to implement the timer counter. HEX0 should show tenths of seconds...
1a. Write your Verilog program to implement the timer counter. HEX0 should show tenths of seconds from 0 to 9. HEX1 and HEX2 should show a count of seconds, from 00 to 59. The ones count is on HEX1 and the tens count is on HEX2. 1b. Count backwards and forwards. Add a button or switch to control counting direction. When counting forwards or backwards, your count should not stop but rollover appropriately at the correct time. When counting forward,...
Question 1: Answer the following questions related to AVR Timer/counter: Write an AVR program that flashes...
Question 1: Answer the following questions related to AVR Timer/counter: Write an AVR program that flashes an LED (PC0) every 6 ms using CPU clock frequency of 32 kHz and TIMER0. Use Timer/Counter0 Overflow Flag (TOV0) in your code. Write an AVR program that flashes an LED (PC0) every 2 seconds using XTAL clock frequency of 16MHz and Timer1. Use Timer/Counter1 Overflow Flag (TOV1) in your code.
Storms What is the difference between mid-latitude and tropics cyclones? Why do cyclones rotate counter-clock wise...
Storms What is the difference between mid-latitude and tropics cyclones? Why do cyclones rotate counter-clock wise in the northern hemisphere but clock-wise in the southern hemisphere as shown in the chart below? Unlike hurricanes, why is it difficult to predict the time when a tornado occurs? Explain why the Midwest U.S is considered as a ‘tornado alley?’ Why are the months of May and June the peaks times for tornado occurrence? must be 350 words long
What is the difference between a Eulerian Path and Circuit? What is the difference between a...
What is the difference between a Eulerian Path and Circuit? What is the difference between a Hamiltonian Path and Circuit? Is the image below Eulerian or Hamiltonian, Path or Circuit? How did you determine your answer?
What is the difference between a refrigerator and a heat pump? What is the difference between...
What is the difference between a refrigerator and a heat pump? What is the difference between a refrigerator and an air conditioner? Define the coefficient of performance of a refrigerator in words. Can it be greater than unity? Check the specification of refrigerator or air-conditioner at your home. See if you can obtain COP of the machine. A heat pump that is used to heat a house has a COP of 2.5. That is, the heat pump delivers 2.5 kWh...
what is the difference between:
what is the difference between:1. the ingression of cells in the chick versus the involution of cells in the frog.2. the movement of Hansen's node in the chick versus the lack of movement in the blastopore.
What is the difference between exergonic and exothermic? What is the difference between intermediate and transition...
What is the difference between exergonic and exothermic? What is the difference between intermediate and transition state? What is the relation between activation energy and the rate of a reaction?
(a) What is the difference between turning and milling? What is the difference between peripheral milling...
(a) What is the difference between turning and milling? What is the difference between peripheral milling (slab milling) and face milling? (b) What are the main parameters in describing the profile of a thread? How to cut threads on a lathe? (c) Describe the differences between electrochemical machining (ECM) and elctrodischarge machining (EDM).
What is the difference between illness and disease? In addition, what is the difference between westernized...
What is the difference between illness and disease? In addition, what is the difference between westernized vs non westernized medicine. What are your views on these two types of medicine. Which do you prefer? Do you tend to depend on westernized medicine or does your culture use alternative medicine? Should we consider non westernized medicine when discussing treatment with our patients? Include APA format, title page and work cited page. 2 page response required for full credit
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT