engineering recuitment UPPSC AE Mock Test 2024 Mechatronics and Robotics Programmable Logic Controller
Consider the following statements.
1. The retentive timer counts time base intervals when the instruction is true.
2. The retentive timer retains the accumulated value when the instruction goes false.
3. The non-retentive timers start from zero each time the timer function block is energized.
Which of the following statements for PLC Programming are true?
1
1 and 2
2
2 and 3
3
1 and 3
4
1,2 and 3