timers-2

The amount of time for which a timer is

programmed is called the

• preset

• Set point

• Done bit

• Accumulated time

The timer instruction is:

• An input intruction

• An output instruction

• either a & b

• Both a & b

The interconnection of timers is commonly

    called :

• grouping

• programming

• sequencing

• cascading

For the program shown, the pilot light will be:

• on at all times

• switched off 15 s after the switch has been actuated

      from the on to off position

• off at all times

• .  switched on 15 s after the switch has been actuated

       from the open to the closed position

In general, the three different types of PLC timers are:

• TT, EN, and DN

• TON, TOF, and RTO

• TON, ACC, and RTO

• TON, TOF, and PRE