PLC timers and counter

Delay ON timer is a short time that

• Will start as soon as program start.

• Will start at any time during program.

• Will turn the output OFF after a certain DELAY

• Will turn the output ON after a certain DELAY

What type of timer is used in the following figure?

• Delay OFF timer

• Delay ON timer

• Cyclic Timer

• Retentive timer

What type of timer is used in the following figure?

• Delay OFF timer

• Delay ON timer

• Cyclic Timer

• Retentive timer

In the ladder diagram shown below, the constant (K=40) of T1 sets the delay time to

• 0.4 Seconds

• 4 Seconds

• 40 second

• 400 Second

In the ladder diagram shown below, the constant (K=20) sets the delay time to

• 0.2 Seconds

• 2 Seconds

• 20 second

• 200 Second

What does value of K (k= 20) in the PLC Instruction table mean?

• 0.2 count

• 2 count

• 20 count

• 200 count

What does value of K (k= 10) in the PLC ladder diagram mean?

• 0.1 count

• 1 count

• 10 count

• 100 count

What does value of K (k= 50) in the PLC ladder diagram mean?

• 0.5 count

• 5 count

• 50 count

• 500 count

What type of timer is used in the following figure?

• Delay OFF timer

• Delay ON timer

• Cyclic Timer

• Retentive timer

Delay OFF timer is a short time that

• Will start as soon as program start.

• Will start at any time during program.

• Will turn the output OFF after a certain DELAY

• Will turn the output ON after a certain DELAY