PLC Timers and Counters Quiz

What is a key advantage of using PLC timers over hardwired timers?

• They are less reliable.

• They are more expensive.

• They require more space.

• They provide a cost-effective solution.

How does a retentive timer differ from a standard on-delay timer?

• It starts timing immediately.

• It resets automatically after timing.

• It retains its accumulated value until reset.

• It does not require a reset.

What is the purpose of cascading timers in a PLC?

• To start equipment simultaneously.

• To start equipment sequentially.

• To reduce the number of timers needed.

• To stop equipment automatically.

What happens during a false to true transition in a CTU instruction?

• The accumulated value remains the same.

• The instruction resets.

• The accumulated value decreases.

• The accumulated value increases.

In what scenario would you use a CTD instruction?

• To reset a timer.

• To start a timer.

• To count up items.

• To count down items.