Asked by Patricia Tucker’Hicks on Apr 26, 2024
Verified
For the programmed timer circuit shown the ____ bit of the timer functions similar to an instantaneous contact. 
A) DN
B) EN
C) PB1
D) PB2
Instantaneous Contact
In electrical engineering, a type of contact within a switch or relay that closes or opens immediately without any delay when activated.
- Acquire knowledge on the functioning and objectives of PLC timers.
- Ascertain the function of timers in the context of PLC programming and control circuits.
Verified Answer
KS
Kaylyn SuitorApr 28, 2024
Final Answer :
B
Explanation :
The EN bit of the timer functions like an instantaneous contact, meaning that it acts as a trigger to start or stop the timer immediately. The DN bit represents when the timer has reached its set value and is in the process of counting down. PB1 and PB2 are push buttons used to manually start and stop the timer.
Learning Objectives
- Acquire knowledge on the functioning and objectives of PLC timers.
- Ascertain the function of timers in the context of PLC programming and control circuits.
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