Long Delay - Reer MZERO Installation, Use And Maintenance Manual

LONG DELAY

The LONG DELAY operator allows to apply a delay (up to more
than 15 hours) to a signal bringing to 1 (TRUE) the Out output
after the set time, in case of a level variation of the signal on
the In input.
Parameters
Time: The delay can be set from 0.5 s to 54915 s.
Scale: The user can choose two different scales for the time T
to be set.
•
0,5 s...3000 s, step 0,5 s
•
3005 s...54915 s, step 5 s
Rising edge: If selected, the delay starts on the input signal's rising edge at the end of which the
output changes to 1 (TRUE) if the input is 1 (TRUE) where it remains for as long as the input stays
at 1 (TRUE).
If not selected the logic is inverted, the output is set to 1 (TRUE) on the input signal's rising edge,
the delay starts on the input signal's falling edge, at the end of the set time the output changes
to 0 (FALSE) if the input is 0 (FALSE) otherwise it remains 1 TRUE.
In
T
Out
Retriggerable: If selected the time is resetted every time the input status changes.
Timer value: When selected the actual value of the timer is available as output which can be sent
as input to a DELAY COMPARATOR block.
8541403 • 19/07/2021 • Rev.1
STAND ALONE PROGRAMMABLE SAFETY CONTROLLER
T T
Rising edge
T = set time
Falling edge
T = set time
T
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