PLC QUIZ TIMERS,COUNTERS,MEMORY - 9-11-23

Which timer we use to start the escalator 3sec after the sensor senses the person

• On - delay

• off - delay

• RS

• counter

The light should stop 3 second after detecting a metal on a conveyor belt

• on delay

• off delay

• RS

• counter

the block diagram shown is

• on delay

• off delay

• rs

• counter

The FBD shown is

• on delay

• off delay

• timer

• counter

The plc special function used to count the number of cans on a conveyer belt is

• timer

• memory

• counter

Which Special function block is used to on lamp when one normally open pushbutton is pressed and off the lamp when another normally open push button is pressed

• timer

• memory

• counter