Deck 15: Programming Timers

Question 1

The timer's delay time would equal the value in the ACC multiplied by the time base.

Answer 1

False

Question 2

For the timer structure shown, which member indicates that a timing operation is in process?

A)PRE
B)ACC
C)DN
D)TT

Answer 2

TT

Question 3

For timer structure shown, which member specifies the value the timer must accumulate to reach the desired time delay?

A)PRE
B)EN
C)ACC
D)TT

Answer 3

PRE

Question 4

Which instruction can best be used to turn an output coil on or off after the rung has been false for a desired time?

A)RTO
B)TOF
C)TON
D)TONF

Question 5

The timer off-delay (TOF) instruction can be used to turn an output coil on or off after the rung has been false for a desired time.

Question 6

The TON instruction produces an off-delay timer.

Question 7

For the timer structure shown, which member indicates that accumulated value is equal to the preset value?

A)PRE
B)EN
C)DN
D)TT

Question 8

Timers are used to:

A)turn outputs on and off after a time delay.
B)turn outputs on or off for a set amount of time.
C)keep track of the time an output is on or off.
D)all of these.

Question 9

The timer address in the ControlLogix controller is a predefined structure of the TIMER data type.

Question 10

The RES instruction is used to reset a timer's accumulated value.

Question 11

The delay time of the timer shown would be:

A)3000 seconds.
B)300 seconds.
C)30 seconds.
D)3 seconds.

Question 12

A TOF timer starts to accumulate time when the rung:

A)makes a true to false transition.
B)makes a false to true transition.
C)when the done bit is set to 1.
D)when the done bit is reset to 0.

Question 13

A TON timer begins accumulating time when the rung conditions become true.

Question 14

The timer tag name for the timer shown is:

A)TOF.
B)Timer.
C)Sample.
D)Sample_TOF.

Question 15

A TOF timer begins accumulating time when the rung conditions become true.

Question 16

The time increment used in CLX timers is milliseconds.

Question 17

A TOF timer starts to accumulate time:

A)when the rung makes a true to false transition.
B)when the rung makes a false to true transition.
C)when the done bit is set to 1.
D)when the done bit is reset to 0.

Question 18

The on-delay timer (TON) is a retentive timer.

Question 19

Retentive timers lose the accumulated time every time the rung condition becomes false.

Question 20

The timer tag name for the timer shown is:

A)Diverter gate solenoid delay timer.
B)Timer.
C)Solenoid_Delay.
D)either a or c.

Question 21

The delay time for the timer shown would be:

A)5000 milliseconds.
B)500 milliseconds.
C)50 milliseconds.
D)5 milliseconds.

Question 22

The RTO timer's ACC value is reset to zero by a:

A)RES instruction with a different tag name.
B)RES instruction with the same tag name.
C)true to false transition of the timer rung.
D)false to true transition of the timer rung.

Question 23

A RTO retentive on-delay timer retains its ACC value even if:

A)the rung goes false.
B)the processor is placed in the program mode.
C)power to the processor is temporarily interrupted.
D)all of these.