Study the ladder logic program in Figure 8-39. And answer the questions that fol
ID: 2079464 • Letter: S
Question
Study the ladder logic program in Figure 8-39. And answer the questions that follow:
What type of counter has been programed?
What input address will cause the counter to increment?
What input address will cause the counter to decrement?
What input address will reset the counter to a count of zero?
When would output O:6/2 be energized?
Ladder logic program 12/6 COUNT-UP COUNTER Counter Preset C5:22 25 Accumulated CTD 13/8 COUNT DOWN COUNTER Counter C52 Preset Accumulated C52 O:6/2 DN I:4/1 C52 RE Figure 8-39 Program for Problem 3.Explanation / Answer
The counter that has been programmed has a up counter which increments the input and has a down counter which decrements the input, it has a output O:(6/2) and a reset for input C(5:2).
When the input address I:2/6 reaches the value of C5:2, the counter will increment.
When the input address I:3/8 reaches the value of C5:2, the counter will decrement.
The input address of I:4/1 causes the counter to reset to zero.
O:6/2 will be energised for the counter value of C:5/2.
When the input I;2/6 is actuated 15 times and the input 3:8 is actuated 5 times, the accumulated value would be 10