Deck 17: Controllogix Controllers - Part 3 - Programming Timers

Question 1

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.

Answer 1

True

Question 2

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.

Answer 2

C

Question 3

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

Answer 3

C

Question 4

The time increment used in CLX timers is milliseconds.

Question 5

The delay time of the timer shown would be:

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

Question 6

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

Question 7

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

Question 8

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

Question 9

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

Question 10

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

Question 11

The TON instruction produces an off-delay timer.

Question 12

The timer tag name for the timer shown is:

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

Question 13

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

Question 14

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

Question 15

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 16

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 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

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

Question 19

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 20

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

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

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

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.

Question 23

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.