PLC UNIT 3

Status of input devices are stored in ________ Register.

• Output single 

• Input single

• Output group

• Input group

Holding register is also known as_______.

• Input register

• Output Register

• Working Register

• Group Register

The______ specifies at what rate the timer will increment

• preset time 

• base time

• reset time

• rise time

A _________timer initiates an action at a specified time after enable input is made low.

• ON delay timer

• OFF delay Timer

• Retentive timer

• Pulse repetitive Timer

A timer that initiates an action at a specified time after enable input is made high is called ________.

• ON delay timer

• OFF delay Timer

• Retentive timer

• Pulse repetitive Timer

 Single input timer is called __________.

• Non retentive

• Retentive

• Pulse timer

• Pulse repetitive Timer

The numerical range within which a counter can count is ____________.

• 32767

• 32768

• 32676

• 32678

HSC stands for _________

• High Sequence Counter 

• High Standard Counter

• High Speed Counter

• Higher secondary counter

Operation of High speed counters are________

• Independent of scan time

• Dependent on scan time.

• User dependent program

• dependent

The output of a PLC counter is energized when the___________

• Count input rung is true

• Count input rung is false

• Accumulated count is equal to the preset count

• Preset count is greater than the accumulated count