Rievtech xLogic ELC Series User Manual page 93

Input En
Parameter
Output Q
Parameter
The on-delay time TH and the off-delay time TL can be provided by the actual value of another
already-programmed function:
Analog comparator: Ax – Ay
Analog trigger: Ax
Analog amplifier: Ax
Analog multiplexer: AQ
Analog ramp: AQ
Analog math: AQ
PI controller: AQ
Data latching relay: AQ
Up/Down counter: Cnt
The value of ＂ＴＨ＂，＂ＴＬ＂can be set/modified in parameter mode. For information about how to
modify, refer to chapter 5.2.2 please.
Timing diagram
Description of the function
With the 0 to 1 transition at input En, a random time (on delay time) between 0 s and T
triggered. If the status at input En is 1 at least for the duration of the on delay, the output is set to 1 when
this on delay time has expired.
The time is reset if the status at input En is reset to 0 before the on delay time has expired.
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The positive edge (0 to 1 transition) at the enable input En
(Enable) triggers the on delay for the random generator.
The negative edge (1 to 0 transition) triggers the off delay
for the random generator.
TH:
The on delay is determined at random and lies
between 0 s and T .
H
TL: The off delay is determined at random and lies
between 0 s and T .
L
Q is set on expiration of the on delay if En is still set. It is
reset when the off delay time has expired and if En has not
been set again.
is set and
H