A transitional off-to-on contact will allow logic continuity for one scan and then open,even though the triggering signal may stay on.
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Q10: Counters can count past their preset values.
Q11: Encoder pulses can be counted to measure
Q12: A counter instruction is an input instruction.
Q13: The counter accumulated value is the current
Q14: PLC counters are normally nonretentive.
Q16: All PLC manufacturers require the reset rung
Q17: The counter number C5:4 represents counter file
Q18: Counters are similar to timers,except that they
Q19: The counter enable bit is true whenever
Q20: The output of the counter is energized
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