Electrical EngineeringProgrammable Logic Controller Lab →List Of Experiments

Develop an application using Up-Down Counter

Review Questions

1.    List the applications of up counters.


2.    With timing diagram explain the working of up counter.


3.    Write a ladder program to flash a lamp 10 times with 10sec duty cycle.


4.    Explain the difference between up and down counter w.r.t done bit.


5.   Explain necessity of down counter with suitable example